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Bogdan R.

5.0

4.9

100%

Bucharest, Romania

$75 USD per hour

Linkedin Profile : https://www.linkedin.com/in/bogdanrapan/ Senior Technology Architect, with over 14 years of experience in the IT Services and Consulting industry. Focus on high-quality services, easy to work with and holistic view of the projects. Expertise in various markets, such as AI, automotive, industrialmanufacturing, public sector, banking, capital markets, andinsurance. My core competencies include cost estimation, time allocation,resource management, stack selection, code review, performance optimization, data migration, and architecture refactoring.

IBM MQ Java Python .NET SQL

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Nabeel A.

4.9

4.5

100%

Rawalpindi, Pakistan

$8 USD per hour

I am a Senior Systems Administrator & Virtualization Engineer with 12+ years of enterprise experience designing, deploying, migrating, and optimizing production-grade IT infrastructures across on-prem, hybrid, and cloud/VPS environments. I have worked extensively with VMware, Hyper-V, Proxmox, Veeam, NSX, Huawei Cloud, Contabo VPS, Oracle WebLogic, IBM WebSphere, and IBM MQ, delivering high-availability, secure, and performance-optimized systems for mission-critical workloads. My core focus areas include: • High Availability & Disaster Recovery • Virtualization & Private Cloud Platforms • Cloud & VPS Migration and Optimization • Performance, Security & Compliance If you are looking for a reliable, production-ready infrastructure expert, you are in the right place. 💻 Core Services & Expertise 🔹 VMware Virtualization & Enterprise Infrastructure • ESXi & vCenter installation and administration • NSX / NSX-T network virtualization & micro-segmentation • vSAN, HA, DRS & failover clustering • Horizon, UAG, VLANs, firewalls & SAN (FC/iSCSI) • Active Directory integration & RBAC 🔹 Proxmox VE (Private Cloud & VPS) • Proxmox installation, optimization & HA clusters • KVM & LXC virtualization • Ceph storage integration • Backup strategies & snapshot automation • Migration from VMware / Hyper-V 🔹 Veeam Backup & Disaster Recovery • Backup & Replication for VMware & Proxmox • RPO/RTO-based DR planning • Secure, encrypted & deduplicated backups 🔹 Hyper-V & Hybrid Infrastructure • Failover clustering, Live Migration & Replica • Virtual networking, SDN & SAN storage • Azure & hybrid-cloud readiness 🔹 Huawei Cloud & Contabo VPS • ECS, VPC, IAM & security groups • VPN, firewall & enterprise workload hosting • On-prem → cloud/VPS migrations • Cost-optimized and hardened architectures 🔹 Enterprise Middleware • Oracle WebLogic (clustering, JDBC, JMS, JVM tuning) • IBM WebSphere (HA, security, performance tuning) • IBM MQ (queue managers, channels, HA & TLS security) 🔹 Databases & Storage • Oracle, PostgreSQL, MySQL, MongoDB • Backup, replication & performance tuning • TrueNAS, Nextcloud & secure private collaboration 🚀 Why Clients Choose Me ✔ 12+ years of enterprise production experience ✔ Strong expertise across VMware, Proxmox, Hyper-V & Veeam ✔ Proven cloud & VPS delivery (Huawei Cloud, Contabo) ✔ Deep middleware & database knowledge ✔ Security-first, performance-driven approach ✔ Clean documentation & structured delivery

IBM MQ System Admin Linux Research SQL

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Deedar Ali B.

4.9

2.4

100%

Shikarpur, Pakistan

$10 USD per hour

Since 2015, I have been developing my coding and testing skills in a few professional environments and have created and implemented efficient applications and programs in some industries I am proficient in Spring, Hibernate, Struts2 , IBM IIB/ACE, IBM MQ , MyBatis Java EE frameworks and I also worked extensively with other programming languages, such as Python and SQL. I offer the following highlights to display my achievements and reinforce my abilities: • Worked on many different projects in multiple technologies. • Managed the development of prototypes and mockups for Business Associates • Designed and developed software solutions for various clients for Consulting Partners • Awarded as the 1st position in Final year project Exhibition. • Awarded Employee of the year at Sapphire Consulting Service Pvt Ltd. I feel that by assuming Software Developer roles in my positions at your company. I built a strong combination of technical and leadership skills that will prove to be an asset to your company. My 5 years of experience in this field has strengthened by analytical, troubleshooting and problem-solving skills to the level that has led me to see many software development projects to successful completion, from design to implementation. I look forward to speaking with you more about my qualifications. Thank you for your consideration.

IBM MQ Java JSP Software Architecture Software Development

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Dharam S.

5.0

0.2

100%

Delhi, India

$10 USD per hour

Java & AI Backend Engineer with 5 years of experience building scalable microservices and LLM-powered applications using Java, Spring Boot, Kafka, and Spring AI. Specialized in Retrieval-Augmented Generation (RAG), Vector Databases, semantic search, and intelligent chatbot development. Proven ability to design event-driven architectures and integrate AI with enterprise systems to deliver scalable, high-impact automation solutions. 🔹 Core Expertise Programming & Frameworks: Java 8, Spring Boot, Microservices Real-Time Data & Messaging: Apache Kafka, SMPP Enterprise Systems: ERP, LMS, Chatbot solutions CRM Integrations: Zoho, Salesforce DevOps & Cloud: Docker, Kubernetes, CI/CD pipelines 🔹 Key Achievements Developed a global Firewall Application ensuring secure, real-time network communication. Built WhatsApp applications with WhatsApp Business API and intelligent chatbots to enhance customer engagement. Integrated chatbots and messaging systems with Zoho and Salesforce CRM, automating leads and workflows. Designed and deployed ERP systems and LMS platforms, enabling scalable enterprise operations. Implemented Kafka Streams, producer/consumer microservices, and optimized real-time data pipelines for high-throughput environments.

IBM MQ Java MySQL RESTful API MongoDB

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How to hire a great freelance IBM MQ Developer

An IBM MQ developer is a messaging middleware specialist who designs, configures, and maintains IBM MQ (formerly WebSphere MQ) infrastructure to enable reliable, asynchronous message exchange between distributed enterprise applications. Hiring a skilled IBM MQ developer ensures your message queues, channels, and integrations move transactional data securely across heterogeneous systems without loss or duplication.

What does an IBM MQ developer do?

IBM MQ developers build the messaging backbone that connects mainframes, microservices, ERP platforms, and cloud workloads. They handle queue manager setup, channel configuration, security hardening, and the application-level code that puts and gets messages from queues. Their work matters commercially because financial transactions, order processing, claims data, and inventory updates often depend on guaranteed once-only delivery between systems that cannot afford downtime.

A freelance IBM MQ specialist typically takes ownership of the full message lifecycle, from designing topology to writing client applications and tuning performance under production load. They also troubleshoot poison messages, dead-letter queues, and channel outages that block business-critical flows.

Core deliverables and services

An IBM MQ consultant covers a wide range of tasks across development, administration, and integration. Common deliverables include:

Queue manager installation and configuration on Linux, Windows, AIX, IBM i, and z/OS

Local, remote, alias, and model queue design with appropriate depth, persistence, and trigger settings

Sender, receiver, server, requester, cluster-sender, and cluster-receiver channel setup

MQ cluster topology design for load balancing and high availability

SSL/TLS channel encryption, CHLAUTH rules, and authorization records using setmqaut

Application development using MQI, JMS, .NET, C, COBOL, Python, and Node.js client libraries

Integration with IBM Integration Bus (IIB), IBM App Connect Enterprise (ACE), Apache Kafka bridges, and IBM MQ Appliance

Migration from older WebSphere MQ versions to IBM MQ 9.x and IBM MQ on Cloud

Performance tuning, log management, and capacity planning for high-throughput queues

Disaster recovery configuration using multi-instance queue managers, RDQM, and replicated data queue managers

Monitoring setup with IBM MQ Explorer, Tivoli, Dynatrace, AppDynamics, or Prometheus exporters

Tools and technologies IBM MQ developers use

Strong candidates know the IBM MQ toolchain inside out and pair it with adjacent integration technologies. Expect proficiency in:

IBM MQ Explorer and the MQSC command interface for administration

runmqsc scripts, mqsicvp, amqsput, amqsget, and dmpmqcfg utilities

IBM App Connect Enterprise, IBM DataPower, and IBM Cloud Pak for Integration

Java Message Service (JMS), Spring JMS, and message-driven beans

Kubernetes and OpenShift operators for containerized queue managers

CI/CD pipelines using Jenkins, GitLab, or Ansible for MQ configuration as code

Wireshark and MQ trace tools for protocol-level debugging

Industries that hire IBM MQ specialists

IBM MQ remains the dominant enterprise messaging standard in industries where transactional integrity is non-negotiable. Typical sectors include:

Banking, payments, and capital markets, where MQ underpins SWIFT, ATM, and core banking flows

Insurance, for policy administration and claims processing

Retail and supply chain, for order management and EDI exchanges

Healthcare, for HL7 and patient data routing between hospital systems

Telecommunications, for billing mediation and provisioning

Government and defense, where mainframe interoperability is required

How to evaluate IBM MQ candidates

Look for hands-on experience with production queue managers at scale, not just lab familiarity. Strong signals include certifications such as IBM Certified System Administrator or Certified Solution Developer for MQ, exposure to multiple operating systems including z/OS, and a portfolio describing migrations, cluster designs, or throughput tuning achievements. Review GitHub repositories or sanitized configuration samples where available.

Use these sample interview questions when shortlisting:

How would you design a high-availability MQ topology across two data centers, and what trade-offs do multi-instance queue managers and RDQM present?

A message ends up on the dead-letter queue with reason code 2053. Walk me through your diagnostic steps.

How do you secure a channel between two queue managers using mutual TLS, and what role do CHLAUTH records play?

What is the difference between a distributed queue and a clustered queue, and when would you choose one over the other?

How have you integrated IBM MQ with Kafka or a REST-based microservice, and what patterns did you use to preserve once-only delivery?

Why hire IBM MQ developers on Freelancer.com

Freelancer.com gives you access to a global pool of vetted middleware engineers who have worked on enterprise messaging projects across banking, telecom, and government. You can compare profiles, certifications, ratings, and past project history before you commit. Clients set their own budgets and receive competitive bids, so you control scope and cost while sourcing specialists with the exact MQ version and platform experience you need. Whether you need a short engagement to debug a channel issue or a long-term consultant for a cloud migration, freelancers on Freelancer.com cover the full spectrum.

Ready to connect with experienced messaging engineers? Post a project on Freelancer.com today and receive bids from IBM MQ developers ready to design, migrate, or tune your enterprise messaging environment.

What are the steps to hiring a freelance IBM MQ developer?

Hiring an IBM MQ developer works best when you treat the brief as a technical specification, not a generic job ad. The clearer you are about MQ versions, operating systems, and the specific integration problem you need solved, the higher the quality of bids you will receive. The process below walks you through posting, reviewing, and awarding the project.

Step 1: Post your project on Freelancer.com

Your project post is the single biggest determinant of bid quality. A precise brief filters out generalists and attracts middleware engineers whose experience matches your stack. Head to the post project page , fill in the scope, timeline, and budget, then publish the project for freelancers to bid on.

Specify IBM MQ version (for example MQ 9.2, 9.3) and target operating systems including any z/OS, AIX, or Linux nodes

Describe the deliverable: new cluster build, migration, TLS rollout, application client development, or troubleshooting

List integration points such as IBM ACE, Kafka, mainframe CICS, or REST microservices

Note compliance or security requirements like FIPS, PCI DSS, or HIPAA that affect channel configuration

Indicate whether the work is on-premises, on IBM Cloud, or on a containerized OpenShift platform

Set a realistic timeline, including any change-window constraints, and a budget range

Step 2: Review bids from freelancers

Bids are short proposals that reveal how each freelancer interprets your brief. Read them as technical responses, not just price quotes. A strong IBM MQ proposal will reference your version, surface assumptions, and propose a sequenced approach rather than a single line confirming availability.

Look for clarity on how the freelancer will approach queue manager design, channel security, or migration sequencing

Note whether they ask sensible clarifying questions about HA topology, message persistence, or throughput targets

Check that the proposed timeline accounts for testing and rollback, not just configuration

Confirm references to relevant tooling such as MQSC scripting, Ansible playbooks, or JMS client libraries

Use Freelancer.com chat to ask scenario-based questions before shortlisting two or three candidates

Step 3: Evaluate freelancers and award the project

The final decision combines proposal quality with profile evidence. For IBM MQ work, weigh consistency of past delivery on similar enterprise messaging projects more heavily than a single standout review. Look for engineers who have completed multiple MQ engagements with high satisfaction scores.

Review portfolio depth for projects involving queue manager clusters, migrations, or hybrid integrations

Check star ratings and the volume of completed projects for sustained performance

Read written client reviews for comments on troubleshooting skill, communication, and documentation quality

Confirm verified payment method, completion rate, and on-time delivery rate

Look for IBM certifications or vendor-acknowledged experience listed on the profile

Award the project and use Freelancer.com Milestone Payments to release funds as configuration, testing, and cutover stages are completed

What is the difference between an IBM MQ developer and an IBM MQ administrator?

An IBM MQ administrator focuses on installing, configuring, and maintaining queue managers, channels, and security. A developer writes the application code that puts and gets messages using MQI, JMS, or other client libraries. Many freelancers cover both roles, which is useful for smaller teams that need end-to-end ownership.

Can I hire an IBM MQ freelancer for a one-off project?

Yes. Common short engagements include version upgrades, TLS hardening, cluster setup, performance tuning audits, and disaster recovery testing. You can scope the work as a fixed-price project or hourly engagement depending on how well-defined the deliverable is.

Do I need a freelancer who knows MQ on z/OS specifically?

Only if your queue managers run on the mainframe. MQ on z/OS has different administration tooling, security models, and performance characteristics than distributed platforms. If your environment includes z/OS, filter candidates explicitly for that experience.

How long does a typical IBM MQ project take?

A focused task such as configuring SSL on existing channels can take a few days, while a full migration from MQ 7.5 to MQ 9.x with cluster redesign may run several weeks. Timelines depend on environment count, downtime windows, and integration testing requirements.

Do I need a freelancer or an agency for IBM MQ work?

For most engagements a skilled freelancer is sufficient and more cost-effective. Agencies make sense only when you need parallel teams across infrastructure, development, and project management for a large enterprise rollout.