Overview: TekWissen is a global workforce management provider throughout India and many other countries in the world. The below client is a global company with shared ideals and a deep sense of family. From our earliest days as a pioneer of modern transportation, we have sought to make the world a better place one that benefits lives, communities and the planet Job Title: Back-end Software Development Engineering Engineer III Location: Chennai Work Type: Hybrid (4 Days work From Office) Position Description:

- 5+ years of software development experience, including hands-on experience building Java applications and working with IBM Mainframe (z/OS) systems. Candidates who have recently transitioned from mainframe development to Java are encouraged to apply.

Key Responsibilities:

- Develop and enhance applications using Java and Spring Boot, including recent features, APIs, and integrations.
- Support and maintain production applications across Java and mainframe environments.
- Work with mainframe systems to understand existing business logic, troubleshoot issues, and support application changes or integrations.
- Build, maintain, and troubleshoot COBOL programs and batch workflows using JCL and standard z/OS utilities.
- Develop and support online transaction applications using IMS DC.
- Write and tune SQL queries for DB2, and work with VSAM files as needed.
- Investigate production issues, resolve batch abends, perform root-cause analysis, and support incident resolution.
- Use relevant development and analysis tools, such as File Manager and IMS debugging tools.

Required Qualifications:

- 5+ years of hands-on application development and production support experience. Practical experience developing applications using Java and Spring Boot.
- Mainframe development or support experience on IBM z/OS, ideally including COBOL, JCL, and batch processing.
- Experience with REST APIs, application integration, and relational databases.



Ability to troubleshoot issues across application, batch, and data-processing workflows.
- Strong problem-solving, communication, and collaboration skills.
- Mainframe Experience

Experience with the following is valuable:

- COBOL and JCL IMS DC online transaction processing DB2 and embedded SQL VSAM Batch-abend troubleshooting and root-cause analysis Mainframe debugging and analysis tools, such as File Manager and IMS debug

Preferred Qualifications:

- Experience with IMS DB and DL/I calls.
- Experience modernizing or integrating mainframe applications with Java-based services.
- Familiarity with microservices, automated testing, and CI/CD practices.

Skills Required:

- Spring Boot, AI, Java, Mainframe Systems, JCL, DB2

Skills Preferred:

- SonarQube, GCP, Pub/Sub

Experience Required:

- Engineer III Exp: Proficient In 2 coding lang. or adv. Prac. in 1 lang.
- 6+ years in IT; 4+ years in development of Java and Mainframe

Experience Preferred:

- Prompt Engineering: Experience crafting effective prompts and workflows for code understanding, documentation, and generation.
- LLM Integration: Exposure to building applications that integrate LLMs (e.g., RAG pipelines, embeddings, vector databases, LangChain, or similar frameworks).
- Python: Familiarity with Python for scripting, notebooks, and AI/ML tooling.
- Cloud: Experience with cloud platforms (GCP, AWS, or Azure) and their AI/ML services.
- Legacy Modernization: Prior experience reverse-engineering or modernizing legacy systems.
- Documentation Tooling: Experience generating architecture diagrams, API docs, or knowledge bases (including AI-assisted approaches).

Education Required:

- Bachelor's Degree

Additional Information :

- 5+ years of software development experience, including hands-on experience building Java applications and working with IBM Mainframe (z/OS) systems.
- Candidates who have recently transitioned from mainframe development to Java are encouraged to apply.

TekWissen Group is an equal opportunity employer supporting workforce diversity.

📌 Back-end Software Development Engineering Engineer III (Chennai)
🏢 Tekwissen India
📍 Chennai