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

ConnexR Solutions Pvt Ltd; Chennai; Hybrid; INR 1,200,000 - 2,100,000; Full time

Job summary

ConnexR Solutions Pvt Ltd in Chennai seeks an experienced Java/Mainframe developer to design and extend Java applications and Spring Boot services, including REST APIs and integrations. The role spans maintenance across Java and mainframe environments, with involvement in COBOL, JCL, batch processing, and z/OS utilities.

Ideal candidates bring 6+ years IT experience and 4+ years in Java and Mainframe development, with a view to modernize legacy systems using AI-enabled approaches.

Qualifications

• 6+ years of IT experience, with 4+ years in Java and Mainframe development.
• Hands-on experience across Java and Mainframe technologies.

Responsibilities

• Develop and enhance Java applications, Spring Boot services, REST APIs, and integrations.
• Maintain and support production applications across Java and Mainframe environments.
• Work with COBOL programs, JCL, batch processing, and standard z/OS utilities.
• Support IMS DC online transaction processing and DB2 SQL queries.
• Troubleshoot batch abends, investigate production incidents, and perform root-cause analysis.
• Work with VSAM files and mainframe debugging tools.
• Support legacy application modernization and integration with Java-based services.

Skills

Java

Spring Boot

AI

Mainframe z/OS

JCL

DB2

REST APIs

COBOL

VSAM

Cloud platforms

Job description

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

Work Mode: Hybrid – 4 Days Work From Office

Notice Period: Immediate joiners or candidates serving notice who can join within 15 days

Interview Process: 2 Technical Rounds – Video Interview

Shift: Day Shift

Mandatory Skills

Java and Spring Boot

AI

IBM Mainframe (z/OS)

JCL and DB2

Hands-on experience in both Java and Mainframe technologies

Key Responsibilities

Develop and enhance Java applications, Spring Boot services, REST APIs, and integrations.

Maintain and support production applications across Java and Mainframe environments.

Work with COBOL programs, JCL, batch processing, and standard z/OS utilities.

Support IMS DC online transaction processing and DB2 SQL queries.

Troubleshoot batch abends, investigate production incidents, and perform root-cause analysis.

Work with VSAM files and mainframe debugging tools.

Support legacy application modernization and integration with Java-based services.

Preferred Skills

SonarQube, GCP, and Pub/Sub

AI/LLM integration, prompt engineering, RAG, embeddings, and vector databases

Python scripting and AI/ML tools

Cloud platforms: AWS, Azure, or GCP

Microservices, automated testing, and CI/CD

Mainframe modernization and AI-assisted technical documentation

Candidate Profile

Candidates should have 6+ years of IT experience , with at least 4+ years of development experience across Java and Mainframe technologies . Candidates who have recently transitioned from Mainframe development to Java are encouraged to apply.