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9.5
9.5
97%

Deheadun, India
$13 USD per hour
We're having a multi-year experience in Custom Software and Mobile Application development and Dedicate Support and Maintenance of the Portals. ⭐⭐⭐⭐⭐ 5 Star Reviews, ⭕ Highly Skilled Team. ⭕ 14+ Years Experience in Web Development. ⭕ 1100+ Projects Completed Till Now And Keep Counting. ⭕ 99% Satisfied Customers And Keep Increasing. ⭕ 24x7- Dedicate Team for Support and Maintenance. ✔ SPECIALITIES - PHP - CodeIgniter - Laravel - Wordpress - Rise CRM - Node.Js - AWS - Woocommerce - Opencart - Prestashop - Shopify - Magento - Yii - Twilio - VOIP - SuiteCRM - Moodle - Azure Server API - Perfex CRM ✔ OUR EXPERTISE IN AREA ERP ◆ CRM ◆ CMS ◆ Twilio ◆ VOIP ◆ Courier & Logistics ◆ Warehousing ◆ E-Commerce ◆ Static / Dynamic Web Responsive Web Development ◆ Hybrid APP ◆ Payment Gateway Integration ◆ SuiteCRM ◆ Moodle ◆ Azure Server API ◆ Perfex CRM ◆ AWS ◆

9.1
9.1
94%

BANGALORE, India
$20 USD per hour
⚡ We help businesses design, build, and scale high-performance digital systems that directly impact revenue — from AI automation, AI voice agents, and custom SaaS platforms to real-time 3D configurators, animation, engineering, and hardware solutions. ⚡ We are a premium System Architecture, AI Automation, 3D, SaaS, Animation, and Engineering company helping businesses turn complex ideas into scalable products. 🏆 What We Specialize In ★★★★★ 🧠 🚀 AI Systems & Automation AI agents, AI chatbots, AI voice systems, conversational AI, LLM integrations, RAG pipelines, NLP, prompt engineering, AI content workflows, AI text-to-speech, AI video, AI image processing, AI research, automation workflows, Twilio, n8n, Zapier, Retell AI, Whisper AI, OpenAI, Claude, Llama, Mistral, DeepSeek, Vector Databases, and enterprise-grade AI architecture. ⚙️ SaaS & Software Development Custom SaaS platforms, full-stack web apps, API development, backend systems, frontend systems, microservices, software architecture, WebRTC, FastAPI, React.js, JavaScript, Python, Java, Google Cloud, AWS, Firebase, Kubernetes, DevOps, web security, software testing, test automation, dashboards, analytics, and scalable cloud deployment. 🎮 3D Configurators & Real-Time Systems Unity 3D, Unreal Engine, Three.js, WebGL, 3D product configurators, real-time rendering, 3D visualization, architectural visualization, 3D rendering, 3D modeling, 3D assets, AR/VR assets, interactive product experiences, digital twins, 360-degree video, and Web-based 3D systems. 🎬 Animation, Video & Creative Production 3D animation, 2D animation, explainer videos, motion graphics, VFX, visual effects, video editing, video production, YouTube ads, Facebook ads, Instagram ads, game trailers, music videos, sound design, sound effects, audio editing, AI animation, AI-generated video, AI influencers, Blender, After Effects, Premiere Pro, Houdini, Final Cut Pro, Photoshop, Illustrator, and digital art. 🔬 Engineering, CAD & Hardware CAD/CAM, SolidWorks, AutoCAD, Fusion 360, Revit, Civil 3D, ArchiCAD, 3D CAD, product design, mechanical design, automotive engineering, electronics, PCB layout, circuit design, firmware, embedded systems, IoT, wireless sensors, DSP, thermal analysis, CFD, FEA, Ansys, DFM, engineering drawings, technical drawings, tech packs, 3D printing, and hardware prototyping. 📈 Marketing, Lead Generation & Growth Systems Lead generation, data scraping, web scraping, data extraction, SEO, SEO auditing, keyword research, Google Analytics, website analytics, content marketing, social media marketing, Instagram marketing, Facebook Ads, Google Ads, Amazon Ads, email marketing, market research, sales automation, and digital marketing systems. Website: www.ekarthaans.com

8.5
8.5
94%

BIKANER, India
$15 USD per hour
Core Techies is a software development and AI engineering company helping startups and enterprises build scalable digital products, automation systems, AI-powered solutions, and SaaS platforms. Since 2013, we have successfully delivered 200+ projects across web applications, mobile apps, backend systems, enterprise software, workflow automation, and AI-powered products. Our expertise includes: 🚀 AI Agents & AI Applications Custom AI agents, conversational AI systems, RAG applications, LLM integrations, document intelligence, and business process automation. ⚡ Workflow Automation n8n, Make.com, Zapier, CRM automation, sales workflows, operational automation, lead management, customer support automation, and system integrations. 📱 Mobile App Development Flutter, Android, iOS, React Native, Firebase-powered applications, MVP development, and enterprise mobile solutions. 💻 Web & SaaS Development React, Next.js, Node.js, Python, Java, Spring Boot, custom SaaS platforms, admin dashboards, multi-tenant systems, and enterprise applications. 🔌 API & System Integrations CRM, ERP, payment gateways, third-party APIs, cloud services, communication platforms, and business system integrations. ☁️ Cloud & DevOps AWS, Google Cloud, Docker, Kubernetes, CI/CD, deployment automation, and scalable cloud infrastructure. Our team focuses on building practical solutions that improve operations, automate workflows, reduce manual effort, and help businesses scale efficiently. Whether you need an AI-powered product, SaaS platform, mobile application, automation workflow, or enterprise software solution, we can help transform your idea into a production-ready system.

6.8
6.8
94%

Lahore, Pakistan
$50 USD per hour
I am Muhammad Abdullah with 8 years of experiences A highly skilled IT professional with broad expertise in Linux system administration, software engineering, web development, and mobile application development. Demonstrates a deep understanding of a variety of operating systems, including Linux, Windows, macOS, Unix, and mobile platforms like Android and iOS. Adept at working with numerous programming languages such as Python, JavaScript, Java, C++, and more. Excels in creating efficient software solutions, designing and maintaining dynamic websites, and developing cross-platform mobile applications. Possesses a strong ability to optimize performance, ensure security, and deliver exceptional user experiences across diverse technological environments. This comprehensive skill set makes them a valuable asset for addressing complex technical challenges and driving innovation across multiple platforms

7.4
7.4
89%

hyderabad, Pakistan
$50 USD per hour
SoasTech is an AI Transformation and Digital Engineering company led by CEO Asif Baloch, a Senior Software Engineer with 8+ years of experience delivering enterprise-grade software, AI, cloud, and digital solutions for startups, SMEs, and enterprises worldwide. 🚀 Core Services 🤖 AI & Agentic Systems OpenAI, ChatGPT, Claude, Gemini, LLMs, AI Agents, Agentic AI, LangChain, RAG, MCP, Prompt Engineering, Vector Databases, AI Chatbots, Computer Vision, OCR, YOLO, FastAPI, n8n, Make.com, AI Automation, and Enterprise AI Solutions. 🌐 Software Development Full Stack Development, React.js, Node.js, PHP, Laravel, Django, Next.js, MERN, Salesforce, Zoho CRM, Odoo, SharePoint, SaaS Platforms, Enterprise Software, API Development, API Integration, and Custom Web Applications. ☁️ Cloud & DevOps AWS, Azure, Google Cloud, Docker, Kubernetes, Terraform, CI/CD, Cloud Architecture, Cloud Security, Infrastructure Automation, and High Availability Systems. 🏢 Enterprise Automation Salesforce Development, Salesforce Lightning, Zoho CRM, ERP Integration, Workflow Automation, Process Automation, Power Automate, Make.com, n8n, and Digital Transformation Solutions. 🛒 eCommerce Solutions Shopify, WooCommerce, Magento, Marketplace Development, Payment Gateway Integration, CRM & ERP Integrations, and Scalable Commerce Platforms. 📱 Mobile Applications Flutter, React Native, Android, iOS, Cross-Platform Apps, and Enterprise Mobile Solutions. 🔗 Blockchain & Web3 Smart Contracts, DeFi, DApps, NFT Platforms, Ethereum, Solana, Polygon, BNB Chain, Trading Bots, and Web3 Integrations. 📈 Trading & FinTech MT4/MT5, TradingView, Pine Script, Binance API, Interactive Brokers API, Algorithmic Trading, Backtesting, and Financial Automation. 🦾 Industrial Automation & IoT PLC, SCADA, Robotics, Embedded Systems, IoT, IIoT, Arduino, Raspberry Pi, ESP32, Manufacturing Automation, and Process Control Systems. ⚙️ Engineering & Embedded Electrical Engineering, Electronics, PCB Design, MATLAB/Simulink, Signal Processing, Embedded Software, and Product Development. 🔒 Cybersecurity Penetration Testing, Security Audits, Digital Forensics, Network Security, Cloud Security, Risk Assessment, Compliance, and Data Protection. ✅ Milestone-Based Delivery ✅ Enterprise-Grade Quality ✅ Transparent Communication ✅ Long-Term Support 💬 Ready to build AI-powered, scalable, and secure solutions? Let's discuss your project.

7.9
7.9
99%

Pikesville, United States
$65 USD per hour
We at Chainbot Solutions Engineer Automated Systems That Keep Your Business Running While You Sleep. Code That Doesn’t Clock Out — Systems That Work Around the Clock.

6.8
6.8
99%

Tangail, Bangladesh
$25 USD per hour
With more than 10 years of experience in the field of innovative website development, mobile apps development and graphic design, I am guaranteeing the quality and accuracy of my work to make my employers 100% satisfy. I build full-stack web platforms, responsive mobile apps, and intelligent AI-driven systems tailored to client needs. In addition to development, I bring solid experience in graphic design, offering high-quality visual assets and branding support. Services I Offer: - Web & mobile app development (iOS, Android, cross-platform) - AI agent design & integration (LLMs, automation workflows) - API development & integration - UI/UX design and prototyping - Branding, logo design, and visual identity kits Deliverables: - Fully functional mobile apps and websites - AI-powered assistants or chatbots - Landing pages, admin dashboards, and CMS interfaces - Branding kits, minimalist logos, and marketing assets Tools & Technologies: - Languages: JavaScript, Python, Php, Java, Kotlin - Frameworks: React, React Native, Vuejs, Node.js, Laravel - CMS: Wordpress, Magento, Oddo, Shopify - AI & Automation: OpenAI, LangChain, n8n, custom agents - Design: Adobe Photoshop, Illustrator, Figma, I write clean, maintainable code and communicate fluently in English, ensuring clear collaboration and timely project delivery.

6.5
6.5
80%

NATORE, Bangladesh
$40 USD per hour
Toriqul Global Solutions is a professional web design and development company dedicated to building modern, high-performance, and user-friendly digital solutions. Founded by Engineer Md. Toriqul Islam, a Computer Science & Engineering graduate from RUET, the company brings over 10 years of experience in delivering scalable and visually appealing websites. Web Design & development: We are a full-stack web developer with more than 10 years of experience. Our design approach is always Modern and simple, which attracts people towards it. We have built websites for a wide variety of industries. We have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB and many other skills Why Choose Us: * Modern, clean, and user-focused design approach * Fully responsive across all devices * Scalable and reusable code structure * Clean, optimized, and well-documented code * On-time delivery with strict commitment to deadlines * Clear and professional communication * 100% client satisfaction is our priority We have successfully worked with clients across different industries, delivering high-quality websites that meet both business goals and user expectations. Let’s Build Something Great Together. Contact us today to discuss your project and turn your ideas into reality. Best Regards, Toriqul Global Solutions

6.7
6.7
86%

Bapatla, India
$45 USD per hour
I am System administrator and Website Developer. I can do penetration testing,linux administraton... I have developed a wide range of websites from the Design to Wordpress,Joomla,Drupal,Codeigniter,smarty, using php,html,css and mysql Website Design & Development Custom Website Design CMS Website design Flash Website Design E-commerce website Design Business Website Design Portfolio Website Design Blog website design HTML Website design PHP Website Development Web Application Development Graphics Design Logo Design Website Hosting ... ... I am interested in taking up the post of Android Developer in your reputed organization. In my position as a Android Developer for my previous employers I have been involved in many areas including Android, Articles, CSS and more. I am ready to work on your projects today as a Android Developer. I have the capability to work in group or take up individual responsibility too as the case maybe. I have extensive Data Entry skills and can put them to good use. I believe I can put in my best if hired by you and your company for any of the suitable position.
A SIP engineer is a telecommunications specialist who designs, configures, and troubleshoots Session Initiation Protocol systems that carry voice, video, and messaging traffic over IP networks. Hiring a SIP engineer gives your business reliable VoIP infrastructure, secure SIP trunking, and properly tuned signalling between PBXs, carriers, and unified communications platforms.
SIP engineers handle the full lifecycle of Session Initiation Protocol deployments, from carrier integration to endpoint provisioning. Their work directly affects call quality, uptime, and the cost of every minute your organisation spends on voice services. A skilled SIP specialist removes one-way audio, dropped calls, jitter, registration loops, and NAT traversal issues that frustrate both internal users and customers.
Typical deliverables from a SIP engineer include configured SIP trunks with major ITSPs, dial plans, codec negotiation rules, SBC policies, call routing logic, fraud-prevention rules, and detailed network documentation. They also produce packet captures, SIP ladder diagrams, and root-cause analyses when call flows misbehave.
A competent SIP consultant is fluent across open-source and commercial stacks. On the open-source side this includes Asterisk, FreeSWITCH, Kamailio, OpenSIPS, FusionPBX, and Issabel. On the commercial side it spans Cisco CUCM and CUBE, Avaya Aura, Mitel MiVoice, 3CX, Ribbon SBCs, AudioCodes Mediant, and Oracle Communications Session Border Controller.
For diagnostics, expect proficiency with Wireshark, sngrep, sipgrep, HOMER, and tcpdump. For automation and scripting, Python, Bash, Lua, and Asterisk AGI or AMI are common. SIP engineers also work alongside firewalls, SD-WAN appliances, and QoS-enabled switches to guarantee voice traffic prioritisation.
SIP engineering is used wherever voice or real-time communication runs over IP. Common engagements include contact centres deploying inbound and outbound dialler infrastructure, ITSPs and wholesale carriers building termination and origination platforms, and enterprises migrating legacy PBX systems to cloud telephony.
Look for hands-on experience with the specific PBX or SBC in your environment. Strong candidates can read a SIP ladder diagram and explain exactly which header or response code caused a failure. Certifications worth noting include Cisco CCNP Collaboration, Avaya ACSS, AudioCodes ACA, and Asterisk dCAP. Portfolios should show production deployments, migration projects, and documented troubleshooting case studies.
Verify that the freelancer understands RFC 3261 fundamentals, SDP negotiation, RTP and RTCP behaviour, and the practicalities of NAT and firewall traversal. Sample interview questions you can use:
Freelancer.com gives you access to a global pool of VoIP and SIP specialists with verified profiles, transparent ratings, and reviewed project histories. Whether you need a short engagement to fix a failing SIP trunk or a long-term consultant to architect a multi-site unified communications rollout, you can compare bids, portfolios, and certifications in one place. Clients set their own budgets and receive competitive proposals from freelancers on Freelancer.com, with Milestone Payments holding funds securely until each deliverable is approved.
Ready to fix call quality issues, migrate your PBX, or build new SIP trunking infrastructure?
Hiring a SIP engineer works best when your brief reflects the specifics of your telephony environment. The clearer you are about your PBX, carriers, and symptoms, the faster you will receive precise, deliverable-focused bids. The following three steps walk through the process from posting your project to awarding it.
The quality of your project post directly determines the quality of bids you receive. SIP work depends heavily on context — the same response code can have very different causes across Asterisk, Cisco CUBE, or an AudioCodes SBC — so a precise brief filters for engineers who genuinely match your stack. Head to the
Bids are short proposals, not just price quotes. A strong SIP engineer will reference your platform by name, ask clarifying questions about codecs or trunk configuration, and outline a diagnostic or implementation approach. Read each proposal for technical literacy before comparing prices.
Final selection should combine proposal quality with profile evidence. SIP engineering rewards consistency, so look for a track record of repeat telephony work rather than a single impressive project. Verified credentials and detailed client reviews matter more than headline ratings alone.
A VoIP engineer covers the broader voice-over-IP stack, including codecs, networking, and PBX administration. A SIP engineer specialises in the Session Initiation Protocol layer itself — signalling, SBC policy, trunk integration, and SIP-level troubleshooting. Most SIP engineers are also strong VoIP generalists.
Yes. Many SIP issues — registration loops, dropped calls, codec mismatches, or carrier interop failures — can be resolved in a short engagement once a specialist captures and analyses the SIP traces. Posting a clearly scoped diagnostic project usually attracts experienced freelancers willing to take on focused, fixed-scope work.
A single trunk integration or SBC policy fix can often be completed within a few days. A full PBX migration, contact centre deployment, or Microsoft Teams Direct Routing rollout typically runs several weeks, depending on the number of sites, users, and carrier dependencies.
If your problem is call quality, signalling failures, or carrier integration, you need a SIP engineer. If the issue is bandwidth, routing, or firewall configuration with no SIP-specific symptoms, a network engineer is the right call. Many SIP specialists cover both areas, since voice quality usually depends on the underlying network.
Have your current PBX or SBC platform, carrier details, number of users or concurrent calls, and a description of the symptoms or goals ready. SIP traces, pcap files, or SBC logs dramatically speed up diagnosis and let freelancers submit more accurate bids.

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