Senior IIB Integration Engineer

Job Title: Senior IBM Integration Engineer

Location: Hartford, CT
Experience Required: 10+ Years (8–15 Years Overall)
Duration: 12+ Months

Role Summary

We are seeking an experienced Integration Architect / Senior Integration Engineer to design, build, and support large-scale enterprise integrations. The ideal candidate will have deep hands-on expertise with IBM Integration technologies, strong API and microservices design skills, and experience delivering cloud-native integration solutions across modern platforms.

Key Responsibilities

Integration Architecture & Development

• Design, develop, and support enterprise-scale integrations using IBM IIB / ACE and IBM MQ.

• Build and maintain message flows, ensuring reliability, scalability, and performance.

• Develop ESQL and Java Compute nodes for transformation and orchestration logic.

• Implement robust error handling, logging, and performance tuning mechanisms.

API Design & Management

• Design and develop RESTful APIs using JSON standards.

• Manage API lifecycle, including versioning and backward compatibility.

• Define and maintain OpenAPI / Swagger specifications.

• Ensure secure API communication using industry best practices.

Microservices & Application Development

• Design and build Java microservices using Spring Boot.

• Apply modern architectural patterns for scalability and maintainability.

• Integrate microservices with messaging and event-driven systems.

Database & Data Management

• Work with MongoDB, including schema design, indexing, and basic sharding concepts.

• Apply strong RDBMS fundamentals for relational data integration.

• Ensure efficient data access and storage strategies.

Cloud & DevOps

• Design and implement cloud-native integration solutions on Azure and Google Cloud Platform.

• Leverage PaaS services, containers, and orchestration platforms such as AKS and GKE.

• Build and maintain CI/CD pipelines to support automated deployments.

• Apply DevOps best practices for integration delivery and operations.

Security, Protocols & Patterns

• Implement secure communication using HTTPS, TLS, JWT, and JWKS.

• Work with multiple data formats including JSON, XML, and SOAP.

• Apply enterprise integration patterns, including:

  • Synchronous and asynchronous communication

  • Publish–Subscribe

  • Saga and compensation patterns

Required Skills & Qualifications

• 8–15 years of overall IT experience with 5+ years in integration architecture and engineering.

• Strong hands-on experience with IBM IIB / ACE, IBM MQ, ESQL, and Java Compute.

• Expertise in REST API design, OpenAPI/Swagger, and API lifecycle management.

• Experience developing Java microservices using Spring Boot.

• Solid understanding of MongoDB and RDBMS concepts.

• Cloud-native design experience on Azure and Google Cloud Platform.

• Strong troubleshooting, performance optimization, and analytical skills.

Desirable / Preferred Skills

• Java REST Web Services

• Microservices Architecture

• Spring Boot

• Strong knowledge of RDBMS concepts