Rabbitmq jobs
...backend services. * Good understanding of databases such as PostgreSQL, MySQL, or MongoDB. * Familiarity with Git and collaborative development workflows. * Understanding of software architecture and backend best practices. * Strong problem-solving and debugging skills. * Good written and verbal communication skills. ## Nice to Have * Experience with Docker or Kubernetes. * Experience with Redis, RabbitMQ, or Kafka. * Familiarity with cloud platforms (AWS, Azure, or GCP). * Knowledge of blockchain or Web3 technologies. * Experience working in startup or agile environments. ## What We Offer * Fully remote work. * Flexible working hours. * Opportunity to work on modern technology projects. * Friendly and collaborative team environment. * Long-term collaboration and career growt...
I need a RabbitMQ support engineer for setup and configuration in a hybrid environment. Key Tasks: - Configure RabbitMQ on both on-premise and cloud platforms - Ensure secure and efficient communication between hybrid nodes - Provide documentation for the setup Ideal Skills: - Experience with RabbitMQ in hybrid environments - Proficiency in at least one cloud provider (AWS, Azure, or Google Cloud) - Strong networking and security knowledge Please share your relevant experience and approach.
...experienced Golang backend developer to build a high-performance SMS processing engine that integrates with our existing platform using RabbitMQ. Current Architecture Laravel (Production) MySQL Redis REST API The new Golang services will run on dedicated Linux servers and communicate with the existing Laravel application. Scope of Work 1. SMS Worker RabbitMQ Consumer Process SMS jobs Multi-worker support Operator-wise routing MNP SMS API integration Retry mechanism Manual ACK Automatic reconnect Logging 2. DLR Worker Poll MNP DLR API Concurrent DLR processing Retry scheduling Send batch DLR updates back to the existing Laravel API 3. Queue Integration Integrate RabbitMQ with the existing Laravel platform Process SMS jobs efficiently High concurrency support Impor...
ST...Frontend (React): Dashboards, state management (Redux / Zustand / React Query), complex async UI flows - Automation: Deep experience with browser automation, scraping, and portal integrations (Playwright / Selenium) - OCR & Passports: Proven experience with OCR (Tesseract, AWS Textract, Google Vision, etc.) on documents and passports - DevOps & Architecture: Docker, Git, message queues (Celery / RabbitMQ / Kafka), microservices, and end-to-end production deployment Who you are: You don't just write code — you understand servers, debugging, monitoring, and architecture. You solve problems with minimal supervision and deliver production-ready work. How we'll start: We'll begin with a small, paid task so we can see how we work together, with strong p...
...Selenium * Cucumber * JUnit / TestNG * API Automation Frameworks ### Performance Testing * JMeter * Load Testing * Stress Testing * Performance Analysis ### Databases & Messaging * PostgreSQL * Redis * RabbitMQ * Kafka ### Tools & Processes * GitHub * Docker * Agile / Scrum * Defect Tracking Tools (Jira or equivalent) ## Responsibilities * Create and maintain test plans, test cases, and test reports * Validate REST APIs and microservices functionality * Develop and execute automated test suites * Perform regression and integration testing for each release * Validate Kafka and RabbitMQ message flows * Execute performance and load testing using JMeter * Identify, document, and track defects * Work closely with developers, architects, and product stakeholders ...
...design and implement a robust, scalable, and production-ready application. Preferred Technology Stack Frontend * React / * TypeScript * Material UI or equivalent enterprise UI framework Backend * Java Spring Boot * REST APIs * Microservices Architecture #### AI & Intelligent Services * Python * FastAPI * AI/LLM Integration Experience Database & Infrastructure * PostgreSQL * Redis * RabbitMQ * Elasticsearch * MinIO or equivalent object storage Security & Identity * OAuth2 * SSO * MFA * RBAC * Keycloak or equivalent IAM solution DevOps * Docker * Kubernetes * CI/CD Pipelines * Monitoring & Observability Security Requirements The application must be designed with enterprise-grade security standards including: * Secure authentication and authorization...
...Liquibase ### Messaging & Event Streaming * RabbitMQ * Apache Kafka ### Architecture & DevOps * Microservices Architecture * Docker * GitHub / Git * CI/CD Pipelines ### Testing & Quality * JUnit * Cucumber * JMeter * Integration Testing * Performance Testing ### Additional Requirements * Strong understanding of JSON processing (JsonNode and related libraries) * Experience designing scalable and resilient distributed systems * Knowledge of API security, authentication, and authorization * Experience troubleshooting production issues ## Responsibilities * Design and develop Spring Boot microservices * Implement REST APIs and event-driven integrations * Optimize PostgreSQL and Redis usage * Develop and maintain messaging integrations using RabbitMQ and K...
Java FullStack Developer! Employment Type: Freelancing Freelancer Location: India Experience: 3+ About the Role: We are looking for a skilled and passionate Java FullSta...Redux / Context API (good to have) Database: MySQL / PostgreSQL / Oracle Knowledge of NoSQL databases (MongoDB is a plus) Tools & Technologies: Git / GitHub / GitLab Maven / Gradle Jenkins / CI/CD (basic knowledge) Docker (good to have) Agile/Scrum experience Good to Have Experience with AWS / Azure / GCP Experience with Docker & Kubernetes Knowledge of caching (Redis) and messaging tools (Kafka/RabbitMQ) Unit testing: JUnit, Mockito Opportunity to work on cutting-edge integration projects with a skilled tech team. Collaborative and innovation-driven culture. Growth-oriented environment with exciting car...
...Reporting system 5. Deployment packaging --- # 3. SYSTEM ARCHITECTURE ## 3.1 High-Level Architecture Frontend Layer: * React.js * TypeScript * Material UI / Ant Design Backend Layer: * FastAPI (Python) * REST APIs * WebSocket support Monitoring Stack: * Prometheus * Grafana * Telegraf * Alertmanager Logging Stack: * ELK Stack * Elasticsearch * Logstash * Kibana Messaging Layer: * RabbitMQ Database: * PostgreSQL Authentication: * Keycloak OR JWT-based Auth Containerization: * Docker * Docker Compose Deployment: * Ubuntu Server * Linux environment mandatory --- # 4. CORE MODULES # MODULE 1: AUTHENTICATION & USER MANAGEMENT ## Features * Login/Logout * JWT Authentication * Role-based access control * Session handling * Password encryption * Audit...
...Python services that drive these rules, expose them through clean APIs, and make sure they scale on both CPU- and GPU-backed nodes. Must-have expertise • Rule engines we actively use: PyKnow, Experta, and Drools • VM layers you’ll manage: KVM, Proxmox, VMware • Orchestration stack: Docker, Podman, Kubernetes Beyond those essentials, the work touches GPU workloads, message queues (Redis, RabbitMQ, Kafka), Postgres/MySQL/MongoDB, and automation pipelines, so practical experience in at least several of these areas will help you hit the ground running. What I expect from you 1. Build the Python rule services, wired into the message queue layer. 2. Create REST/JSON APIs so external apps can trigger, modify, and monitor rules. 3. Provide Terraform/...
...Event-Driven Autoscaling with KEDA Dynamic, Metric-Driven Scaling: Integrated KEDA (Kubernetes Event-driven Autoscaling) to scale microservices from zero to thousands of pods based on real-time event metrics rather than traditional CPU/Memory thresholds. Multi-Scalar Integration: Authored production-grade scaling policies utilizing diverse KEDA scalers, tracking external metrics from Apache Kafka lag, RabbitMQ queues, Prometheus queries, and GCP Pub/Sub message counts. Scale-To-Zero Cost Optimization: Engineered scale-to-zero configurations for asynchronous workers and AI ingestion agents, completely eliminating compute costs during idle periods. HPA Coexistence: Masterfully managed the interplay between native Horizontal Pod Autoscalers (HPA) and KEDA, mitigating resource con...
I’m provisioning RabbitMQ clusters on OpenShift, but every attempt ends with a release-name naming conflict that drives the pods into a CrashLoopBackOff. The manifests are all YAML and the surrounding automation is written in Node.js, so I need someone who can move comfortably between those two worlds while troubleshooting OCP internals. What I need you to do • Pinpoint the exact source of the release-name conflict and eliminate it. • Update the Helm chart / raw YAML (whichever proves to be the culprit) so the cluster spins up cleanly in each target region. • Verify that all pods remain healthy after deployment and that the management UI shows a fully formed RabbitMQ cluster. • Hand back the corrected deployment files plus a concise summary ...
...cloud-native backend architecture including: • REST and/or GraphQL APIs • Real-time socket infrastructure • Ride matching engine • Geolocation services • Route optimization • Notification systems • Admin authentication layers • Payment reconciliation systems • Audit logging • Data encryption and GDPR-aligned compliance Preferred stack examples: • Node.js / Go / Python • PostgreSQL + Redis • Kafka/RabbitMQ (optional) • Firebase/AWS/GCP integrations • Kubernetes/containerized deployment ________________________________________ Core Functional Requirements Real-Time Tracking • Continuous live GPS updates • Accuracy target: ±10 meters • Driver/passenger live visibility • Route devia...
...experience with API design (REST, gRPC, OpenAPI) * Experience with debugging production issues and performance tuning * Experience working with both Windows (IIS, Services) and Linux (Docker, Kubernetes) * Strong understanding of system design, scalability, and reliability * Experience in modernization projects and legacy system handling --- ### **Good to Have** * Event-driven architecture (Kafka, RabbitMQ, Azure Service Bus) * Cloud experience (Azure / AWS) * Infrastructure as Code (Terraform, ARM, Bicep) * Experience operating large-scale production systems --- ### **Ideal Candidate** * Strong problem-solving and ownership mindset * Comfortable working with legacy systems and modernizing them * Able to handle ambiguous requirements and deliver solutions independently * Go...
...queues - Ensure system scalability, performance, and reliability - Handle error handling, logging, and monitoring - Collaborate with cross-functional teams for feature delivery --- Required Skills - Strong experience in Python backend development - Hands-on with FastAPI / Django / Flask - Experience building REST APIs and microservices - Good understanding of asynchronous programming (Celery, RabbitMQ, Kafka, etc.) - Strong SQL skills and experience with databases (PostgreSQL, MySQL, MongoDB) - Knowledge of system design, scalability, and performance optimization - Experience with cloud platforms (AWS / GCP / Azure) - Familiarity with Docker and CI/CD pipelines --- Good to Have - Experience with LLM/AI integrations (OpenAI, LangChain, etc.) - Experience with large-scale dat...
...hands-on experience with Linux servers, deployments, AWS, GCP and Microsoft Azure - Are comfortable with Docker and CI/CD pipelines - Have worked with monitoring and observability tools (Prometheus + Grafana + Loki + Tempo) - Enjoy automating things and making infrastructure more reliable - Are always looking to expand your DevOps skill set - Bonus: Experience with PHP, Laravel, MySQL, Microservices, RabbitMQ, Kong, Keycloak, Kubernetes We genuinely invest in the people we work with. You will have a clear scope of work, consistent feedback, and real opportunities to grow your skills on interesting and varied projects. This is a ongoing freelance position, meaning ongoing and stable work, and a real long-term relationship, not just another short project. Engagement details - T...
...device communication Cloud-native backend services Market communication and integrations Analytics and operational dashboards Workflow automation Audit logging and operational monitoring Tech Stack: React Node.js + Express MongoDB Docker Redis Kafka / RabbitMQ MQTT REST APIs We are looking for a developer who can work confidently across both frontend and backend. Required Skills: Strong React frontend development Solid Node.js and Express backend experience Experience building scalable APIs and event-driven systems Familiarity with Kafka, RabbitMQ, MQTT, or similar messaging systems Experience with Dockerized environments Understanding of multi-tenant architectures Experience integrating third-party APIs and external systems Ability to design maintainable and production-...
...REST/SOAP APIs, webhooks, or middleware platforms. Proficiency with AI/LLM orchestration frameworks such as LangChain, LangGraph, Semantic Kernel, AutoGen, Haystack, or equivalent. Strong programming skills in Python (primary) and/or Java/Node.js for building integration and orchestration components. API design and consumption (REST, GraphQL, OpenAPI/Swagger) and message queuing systems (Kafka, RabbitMQ, Azure Service Bus, or similar). Technical Skills Cloud platforms: AWS, Azure, or GCP — platform agnostic, comfortable deploying on any major provider. Containerization and orchestration: Docker, Kubernetes (EKS/AKS/GKE), Helm. CI/CD and DevOps: Git, GitHub Actions, Azure DevOps, Jenkins, or equivalent. Data integration: Familiarity with ETL/ELT patterns, dat...
...Web API (latest LTS) using Clean Architecture, CQRS, and Dependency Injection. • Real-Time Layer: SignalR for bi-directional communication between drivers and passengers to enable live tracking and instant updates. • Database: SQL Server with Entity Framework Core (code-first) and optimized indexing. • Caching: Redis for fast access to live driver locations and high-frequency data. • Messaging: RabbitMQ for handling asynchronous workflows such as notifications, trip processing, and background jobs. • ML Service: Python-based microservice (FastAPI) for ETA prediction and future intelligent features. • Deployment: Fully Dockerized and cloud-ready (Azure/AWS). Live Tracking System Tripix implements a real-time tracking engine where drivers continuously...
Looking for senior .NET backend developer to join ongoing development of backend system. You will be responsible for building out core backend functionalities, and ensuring the system is functional, secure, scalable, and maintainable. • Comprehensive expertise in .NET. • ABP framework experience • DB query optimization. • Experience with message brokers (e.g., Kafka/RabbitMQ) • Experience with idempotency patterns • OAuth 2.0 implementation • API rate limiting and throttling • mTLS based authentication/authorization (extra. not required) • Security audit logging and monitoring • Experience with Docker • Experience and understanding of caching (e.g., Redis) • Creating technical documentation and architecture diagrams •...
...throttling versioning monitoring Authentication should follow OAuth2 / JWT best practices. Integration Middleware • Introduce an ESB or lightweight integration layer responsible for: data transformation orchestration validation routing between services The backend services currently run on Laravel / PHP. Event Infrastructure • Implement an event-driven backbone using tools such as: Kafka RabbitMQ This layer will publish real-time portfolio events, including: new loan onboarding loan status changes repayment activity collection updates Security & Observability Implement strong operational and security practices including: • role-based access control (RBAC) • API audit logging • request tracing • production monitoring • SOC-friendl...
...delivery and failure handling Maintain logs, retries, and queue systems *Requirements Strong experience in WhatsApp Business API (Meta Cloud API / BSP systems) Experience building tools similar to AiSensy / WATI / Interakt / Gupshup dashboards Backend expertise in: Node.js / (preferred) PostgreSQL / scalable DB design Strong knowledge of: Webhooks & event-driven systems Messaging queues (RabbitMQ / Kafka - bonus) Experience with: Multi-tenant SaaS architecture High-scale messaging systems * Bonus Skills Experience building flow builders (like n8n / Zapier style) Prior work on BSP-level WhatsApp platforms AI chatbot / conversational UX experience * What We Expect Ownership mindset (build, not just integrate) Ability to think product + scale Startup-ready execution speed *...
...system (token-based) - Audio streaming (audiobook) - Secure PDF delivery (premium only) - Album streaming (premium only) - Raffle system with user codes Requirements: - Strong experience with Node.js (Express or NestJS) - Experience with Stripe webhooks () - Experience building scalable systems (10k+ concurrent users) - Knowledge of queues / async processing (SQS, Redis, RabbitMQ) - PostgreSQL database design - AWS experience (S3, EC2 or Lambda) - Ability to build secure access control (token / signed URLs) Nice to have: - Experience with PWA () - Experience with media streaming - Experience with high-load systems Important: This system must be built for high traffic. No synchronous webhook processing. Must use async architecture. Timeline: MVP required in 3–5
...microservices platform (Phizica) that is 99% ready, but the final production deployment is failing. It runs perfectly in a local Docker cluster, but it is currently a "dark site" to the public internet because of networking/gateway blockages. The Technical Situation: Architecture: 10+ decoupled microservices (Node.js, Express, TypeScript, Prisma). Infrastructure: Docker Compose, PostgreSQL (PgBouncer), RabbitMQ (Outbox Pattern), and Nginx. The Problem: The machine is correctly assigned a Static Public IP (), and our Nginx gateway is listening. However, we are getting Connection Timeouts from the public internet. It works on the internal office network but fails globally. Root Cause Suspected: Likely a Cloud Catalyst / Firewall NAT conflict at the ISP level (Vortex Inf...
...and database connection pooling for maximum throughput with minimal resource consumption. • Monitor server health and application performance using tools such as New Relic, Datadog, or Grafana; proactively identify and resolve bottlenecks before they impact users. • Reduce server footprint through efficient memory management, lazy loading, pagination, background job processing (queues via Redis/RabbitMQ), and asynchronous task handling. Quality Assurance & DevOps • Write unit tests and integration tests (PHPUnit, Codeception) to maintain high code coverage and catch regressions early. • Set up and maintain automated deployment pipelines, containerised environments (Docker), and staging/production server configurations. • Perform load testing and stres...
...services, **RabbitMQ** for message queuing, and **Microsoft SQL Server (MSSQL)** as the primary database. This system will allow us to operate as an SMS aggregator/reseller, connect with multiple upstream SMS providers via SMPP, and provide API access to downstream clients. ## Core Objectives * Develop a scalable SMS gateway platform * Integrate SMPP client connections with upstream providers * Provide REST API for customers to send SMS * Implement asynchronous message processing using RabbitMQ * Real-time DLR (Delivery Report) handling * Billing, routing, and reporting system * High throughput and fault-tolerant architecture ## Technical Stack (Mandatory) * **Backend:** .NET 8 / .NET Core (RESTful API) * **Database:** Microsoft SQL Server (MSSQL) * **Queue System:**...
...(Over-the-Air) update (khususnya Android/Linux/Windows) 4. Dashboard & API Web dashboard untuk monitoring & control REST API / gRPC backend Role-based access control (RBAC) 5. Security & Compliance Encrypted communication (HTTPS / TLS) Device certificate management Token rotation & revoke mechanism 6. Scalability & Reliability Support hingga ribuan device (high concurrency) Queue system (Kafka / RabbitMQ / Redis) Fault-tolerant architecture Tech Stack (Flexible) Kami terbuka dengan stack, tapi prefer: Backend: Golang / Node.js Frontend: React / Mobile/Agent: Native / cross-platform sesuai OS Infra: Docker, Kubernetes (optional) Cloud: AWS / GCP / lokal server Kriteria Freelancer Berpengalaman di distributed system / scalable backend Pern...
...(Over-the-Air) update (khususnya Android/Linux/Windows) 4. Dashboard & API Web dashboard untuk monitoring & control REST API / gRPC backend Role-based access control (RBAC) 5. Security & Compliance Encrypted communication (HTTPS / TLS) Device certificate management Token rotation & revoke mechanism 6. Scalability & Reliability Support hingga ribuan device (high concurrency) Queue system (Kafka / RabbitMQ / Redis) Fault-tolerant architecture Tech Stack (Flexible) Kami terbuka dengan stack, tapi prefer: Backend: Golang / Node.js Frontend: React / Mobile/Agent: Native / cross-platform sesuai OS Infra: Docker, Kubernetes (optional) Cloud: AWS / GCP / lokal server Kriteria Freelancer Berpengalaman di distributed system / scalable backend Pern...
...concurrent WebSocket/API pulses from BLE beacons without latency. Multi-Tenant Hierarchy: Implement a robust, schema-based multi-tenant architecture to support a global hierarchy (Global Admin $rightarrow$ Country $rightarrow$ State $rightarrow$ Branch/Franchise). Data & Performance: Optimize PostgreSQL indexing, implement Redis caching, and transition heavy tasks to a distributed queue (Celery/RabbitMQ). Flutter Integration: Collaborate with our mobile team to ensure the real-time data streaming between Flutter and the backend is bulletproof. Phase 2: System Maintenance & Evolution 1-Year Commitment: Provide ongoing system maintenance, bug fixes, and security patches to ensure 99.9% uptime. Performance Monitoring: Continuously monitor server health as we cross the 10k...
...security groups, networking) Implement CI/CD pipelines for automated deployments Configure environment variables and secrets management Set up logging, monitoring, and backup strategies Optimize infrastructure for cost and scalability Assist with deployment troubleshooting and documentation Tech Stack Frontend: TypeScript Tailwind CSS NextAuth Backend: Node.js MongoDB Kafka / RabbitMQ (optional) REST APIs Infrastructure: AWS (EC2, S3, IAM) CI/CD (GitHub Actions or similar) Docker (preferred but optional) Requirements Strong experience with AWS cloud infrastructure Experience deploying Node.js / applications Experience with CI/CD pipelines Familiarity with security best practices Ability to document infrastructure setup clearly Prior DevOps experience ...
...engineers; while they refine models, you will expose their work through well-structured endpoints and schedule long-running jobs with Celery. A deep understanding of asynchronous programming, background job queues, and the nuances of production-grade REST APIs is therefore essential. Key tech you should already be fluent with includes: • Python 3.x, FastAPI, Pydantic • Celery with Redis or RabbitMQ back-ends • OAuth2 / JWT for securing endpoints • Docker and Git for reproducible builds and clean collaboration Deliverables I expect: • A versioned RESTful API that handles external service integration end-to-end • Celery task queues for model execution and heavy I/O workloads • Unit & integration test coverage ≥90 % plus API do...
...maintainable Java code on the back-end while also tying in the front-end layers so the entire flow feels seamless to the user. Key elements you’ll handle • Setting up and extending a Spring Boot framework that connects to a relational database; I already have tables sketched out, so efficient JPA/Hibernate mapping will be important. • Wiring the service layer to a message-queue solution (RabbitMQ or Kafka—open to whichever you prefer) so events are published and consumed reliably. • Implementing the usual full-stack glue—controllers, DTOs, and any lightweight front-end touches—so features can be demonstrated in a browser without extra hand-holding. • Writing concise documentation and a one-shot script or Dockerfile that lets me...
...services, **RabbitMQ** for message queuing, and **Microsoft SQL Server (MSSQL)** as the primary database. This system will allow us to operate as an SMS aggregator/reseller, connect with multiple upstream SMS providers via SMPP, and provide API access to downstream clients. ## Core Objectives * Develop a scalable SMS gateway platform * Integrate SMPP client connections with upstream providers * Provide REST API for customers to send SMS * Implement asynchronous message processing using RabbitMQ * Real-time DLR (Delivery Report) handling * Billing, routing, and reporting system * High throughput and fault-tolerant architecture ## Technical Stack (Mandatory) * **Backend:** .NET 8 / .NET Core (RESTful API) * **Database:** Microsoft SQL Server (MSSQL) * **Queue System:**...
...Developing APIs that power a customer-facing web dashboard Database design, optimization, and migration strategy CI/CD pipelines and containerized deployments 5+ years backend development Strong proficiency in Python (FastAPI or Django) and/or Node.js/TypeScript (Express, NestJS) Solid PostgreSQL/NoSQL experience (schema design, indexing, query optimization) Message queues and async processing (RabbitMQ, Kafka, Celery, or Bull) Docker and container orchestration basics RESTful API design and implementation at scale Git-based workflows (branching, PRs, code reviews) Security-conscious development practices Preferred / Bonus React / experience (full-stack capability) AWS cloud services (EKS, RDS, S3, SQS) Document processing or file parsing experience Multi-tenant SaaS architectu...
...and roll-out with minimal manual touch points. And the job you have to do requires experience in the following tasks: Here is the flow I have in mind: 3-VPS hybrid DB with Cassandra/PostgreSQL/Redis, RabbitMQ + WebSockets, Docker, CI/CD, HTTPS endpoint, and APM). 1. Hybrid database approach Distributed Cluster. 2. Containerize the application with Docker and automate builds via Maven or Gradle. 3. Primary Databases for Chat History Cassandra (NoSQL) 4. Secondary Databases PostgreSQL (for users Metadata) on the codebase’s data model. 5. Backed Language: Spring Boot Java 21/25 with RabbitMQ,and Maven or Gradle configuratio 6. Redis : Presence/Session 7. Real-time: WebSockets for bidirectional communication 8. also preferred APM (Prometheus + Grafana, ELK stack...
...reports) AI defect extraction Structured data normalization Repair cost estimation logic Long-running job orchestration Background workers / queues Multi-user concurrency Production deployment architecture NOTE: Required Technical Stack (Non-Negotiable) You must have experience with: Node.js or Python backend (FastAPI / Express / NestJS) Background job queues (BullMQ / Celery / Redis / RabbitMQ) PostgreSQL Object storage (S3 or equivalent) Production deployment (AWS / DigitalOcean / similar) API architecture design Handling long-running async workflows Bonus: Experience with AI APIs (OpenAI / Anthropic) Experience with document parsing Cost optimisation for AI workloads NOTE: The Core Challenge We process building inspection PDFs (50–70+ defects per ...
We need a full-stack technical staff member with expertise in Java microservice development (Spring Cloud), message queues (Kafka/RabbitMQ), databases and caching (MySQL/Redis), Linux server deployment and maintenance, Nginx gateway configuration, and distributed system debugging to complete the deployment.
Requires Linux server operation and maintenance capabilities (system operation, permissions, service management, Shell scripting); server environment deployment capabilities (Nginx/Apache/Web service configuration); database management capabilities (MySQL installation, import, and recovery); system backup and recovery techniques ( decompression, directory migration, dependency repair); RabbitMQ message queue deployment capabilities; server network configuration (ports, firewall, service connectivity).
...Session timeout * API request signing * Audit logs --- ## 17. Logs & Monitoring * Recharge logs * API request/response logs * Callback logs * Wallet logs --- ## 18. Notifications System * SMS alerts * Email alerts * WhatsApp alerts (optional) * Webhook callbacks --- ## 19. Technology Stack (Suggested) * Backend: Node.js / PHP / Python * Database: MySQL / PostgreSQL * Cache: Redis * Queue: RabbitMQ / Bull * Frontend: React / Vue / Blade --- ## 20. Scalability & Performance * Load balancing * Horizontal scaling * API rate limiting * Retry & timeout handling --- ## 21. Compliance & Business Rules * KYC compliance * GST & TDS reports * Data protection * Audit readiness --- ## 22. Summary This B2B Recharge Portal is a **complete financial transact...
...AJAX Angular (v8–16), React, Knockout React Native Databases & Data Engineering SQL Server (2008 R2, 2012, 2014, 2016) Azure SQL MySQL, PostgreSQL MongoDB, Cosmos DB, SQLite Database Design, Modeling, Management & Analysis Cloud, DevOps & Infrastructure Microsoft Azure (Functions, Logic Apps, Service Bus, Blob Storage, Data Factory, Azure DevOps) AWS Cloud Docker, Kubernetes RabbitMQ CRM, ERP & Enterprise Platforms Microsoft Dynamics CRM 365 Dynamics Business Central Sage CRM NopCommerce Sitefinity v12.2 Umbraco v8.0 DotNetNuke v4.0 Python, AI & Advanced Solutions Python, Django, Flask, Pyramid REST APIs, WebSockets PySpark AI Email & Chatbot Solutions Data Science & Analytics CMS, E-Commerce & Web Platforms Wor...
...microservice back-end with a React Native front end, hosted on Ubuntu servers in AWS. Right now the most urgent need is to deliver new functionality, and nearly all of that work sits squarely on the back end. Your first assignments will centre on extending our microservice architecture and exposing new, well-documented APIs. You’ll be writing C#, containerising services, wiring events through RabbitMQ, and persisting data in PostgreSQL—then shipping the code straight into production. I pay $6/hour for hands-on development only; time spent reading code, researching, or experimenting is on the freelancer. Work independently, own your tasks, communicate clearly, and suggest improvements when you see them. Do that well and there’s steady, long-term work waiting for...
I’m ready to start a green-field backend built in Java 17+ with Spring Boot. The goal is a production-ready, event-driven microservice suite that exposes well-designed REST APIs, integrates with MySQL, and is easy to scale and maintain. Here’s the core of what I need you to handle: • Design and implement an event-driven microservice architecture (Kafka, RabbitMQ, or similar—your recommendation is welcome) with one clear API Gateway. • Model the domain and create MySQL schemas from scratch, wiring them up through Spring Data JPA or another proven persistence layer. • Develop clean, versioned REST endpoints for each service and document them (Swagger/OpenAPI). • Provide automated unit, integration, and API tests so the build stays reliable....
I’m ready to start a green-field backend built in Java 17+ with Spring Boot. The goal is a production-ready, event-driven microservice suite that exposes well-designed REST APIs, integrates with MySQL, and is easy to scale and maintain. Here’s the core of what I need you to handle: • Design and implement an event-driven microservice architecture (Kafka, RabbitMQ, or similar—your recommendation is welcome) with one clear API Gateway. • Model the domain and create MySQL schemas from scratch, wiring them up through Spring Data JPA or another proven persistence layer. • Develop clean, versioned REST endpoints for each service and document them (Swagger/OpenAPI). • Provide automated unit, integration, and API tests so the build stays reliable....
...framework is fine) with login, account selector, bulk action composer, progress tracking, and CSV export. • Backend service that authenticates multiple existing X accounts, schedules mass follows/messages/likes, and enforces per-account limits. • Integration layer calling Cupid AI Chatbot API for on-the-fly message generation and conversation context. • Scalable job queue, preferably Redis/RabbitMQ or similar, with clear status callbacks to the front end. • Deployment scripts (Docker or comparable) so I can spin this up on a clean VPS and scale horizontally if needed. Acceptance criteria 1. Given 500 existing X accounts, the panel completes a 5,000-follow batch within specified API limits and returns a success log per account. 2. A drafted messa...
...and backend cleanly * Ensure the system is stable, usable, and production-ready Responsibilities * Work with 14/15 and TypeScript across frontend and backend * Maintain and improve APIs using tRPC * Work with PostgreSQL, Redis, RabbitMQ * Implement and optimize Typesense search * Integrate AI services (embeddings, parsing, structured outputs) * Handle real-time connections (WebSockets) * Ship clean, maintainable, production-quality code Tech Stack * 14/15, React, Tailwind CSS * TypeScript, Node.js * tRPC, NextAuth * PostgreSQL, Redis, RabbitMQ * Typesense * Google Vertex AI * OpenAI / Groq * Stripe Requirements * Senior-level experience with production systems * Strong ownership mindset * Comfortable working independently or as a two-person team * Clear communication ...
...understanding of: Stateless backend design Horizontal scaling strategies Background workers and job queues Proven experience using Redis in production Experience designing systems that handle high concurrency and burst traffic Strong fundamentals in system design and trade-offs Ability to reason clearly about CPU, memory, and I/O bottlenecks Good to Have (Strong Plus) Experience with BullMQ, RabbitMQ, Kafka, or similar systems Experience processing large files (PDFs, OCR, media pipelines) Experience with cloud infrastructure (AWS, GCP, Docker) Experience scaling systems from 10k to 100k+ users Experience building multi-tenant SaaS platforms What This Role Is NOT Not a CRUD-only API role Not a frontend role Not a role focused on “adding sockets everywhere&rd...
... - None (NoOp for testing) - One-time and Recurring payment can be demoed with all integrated PSPs using sandbox accounts. - Async Messaging: RabbitMQ producer is implemented for events with transaction payload. - Distributed Environments / Kubernetes safety: - All functionality can run reliably on Kubernetes - Execution is idempotent to prevent duplicate processing - Components are safe to run in parallel across multiple pods - Coordination and state handling support distributed execution without race conditions - Traceability: Every log entry and RabbitMQ message must contain a correlationId traceable across ecosystem modules. - Docker container builds successfully and runs without errors. - All unit tests pass with >80% code coverage
...basic security best practices (authentication, data protection). - Technical documentation for installation, deployment and maintenance. 5. Deliverables - Fully functional production-ready application. - Source code ownership transfer. - Installation and administration documentation. Required Qualifications - Proven experience with Laravel / PHP. - Experience with queue systems (Redis, Horizon, RabbitMQ or equivalent). - Experience building subscription systems and integrating payment gateways. - Strong understanding of scalable architecture and performance optimization. - Reliability in delivery and documentation. Evaluation Criteria The contract will be awarded based on: ✔ Total financial offer (lowest bid principle). ✔ Technical competence and portfolio. ✔ Realistic delivery...
I’m putting together a production-ready microservice architecture written in Go. The heart of the work is a robust queuing layer—think Kafka or RabbitMQ—so messages flow reliably between services. I’ll share the exact flow charts and edge-cases once we start, but the goal is a clean, well-tested service that can scale without drama. For the user-facing side I’d like the front-end handled in react as well, keeping the stack uniform for faster compilation pipelines and simpler deployments. Data lands in a SQL store, specifically MySQL, so the schema, migrations, and query layer need to follow best practices and remain easy to extend. Beyond the initial build I’ll need ongoing pairing: troubleshooting, adding new endpoints, tightening performance, ...
