Mainframe Senior Developer - Hybrid

HCL Technologies Limited; São Paulo; Presencial; BRL 180 000 - 320 000; Tempo integral

Resumo da oferta

HCLTech in São Paulo seeks a senior mainframe developer to design, develop and support COBOL/CICS/DB2 components on z/OS, delivering high-quality, well-tested solutions.

You will mentor junior engineers, participate in agile ceremonies, and ensure secure coding practices while optimizing batch and online processing and driving mainframe modernization.

Qualificações

• Extensive experience with COBOL/CICS/DB2 on z/OS
• Strong knowledge of mainframe data handling and SQL tuning
• Experience with unit, integration and regression testing

Responsabilidades

• Design and build mainframe components, services and enhancements within architecture and standards
• Translate user stories into clean, efficient implementations and fix complex defects
• Mentor junior developers and participate in code reviews and agile ceremonies

Conhecimentos

COBOL

JCL

CICS

VSAM

DB2

z/OS

Descrição da oferta de emprego

HCLTech is a global technology company, spread across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. We re powered by our people a global, diverse, multi-generational talent - representing 161 nationalities whose unique spark, perspective and boundless passion drive our culture of proactive value creation and problem-solving.

Role Purpose:

Design, develop and support mainframe components as a senior individual contributor: delivering high-quality, well-tested and maintainable solutions, resolving complex technical problems, and supporting less experienced engineers within the team.

Key Responsibilities:

• Development & Design
• Design and build mainframe components, services and enhancements within the agreed architecture and standards.
• Translate user stories and specifications into clean, efficient and testable implementations.
• Handle complex technical problems, performance issues and non-trivial defects independently.
• Contribute to technical design discussions, estimation and solution options.
• Write and maintain unit, integration and regression tests to agreed coverage expectations.
• Participate actively in code reviews, providing and acting on constructive feedback.
• Apply secure coding practices, effective error handling and appropriate logging. Delivery & Support
• Deliver committed scope within agreed sprint or release timelines with predictable quality.
• Support build, deployment, environment issues and release verification activities.
• Investigate production incidents, perform root-cause analysis and implement durable fixes.
• Work closely with leads, architects, QA, business analysts and support teams.
• Participate in agile ceremonies, backlog refinement and dependency discussions.
• Mentor junior developers through pairing, reviews and knowledge sharing.
• Design, develop and support COBOL/CICS/DB2 batch and online components within agreed standards.
• Optimize batch windows, DB2 access paths and resource consumption to protect service levels.
• Support mainframe modernization, API exposure and integration with distributed and cloud platforms.

Required Technical Competencies:

• COBOL, JCL, CICS, VSAM, DB2 and z/OS utilities; batch and online program design and optimization.
• Mainframe application architecture, modularization, API enablement and modernization/coexistence patterns.
• Data & Integration DB2 and VSAM data design, SQL tuning, file handling, data conversion, integrity and reconciliation.
• Platform & DevOps z/OS operations, scheduling, change management, environment promotion and mainframe-to-distributed integration.
• Unit and regression testing, batch cycle validation, performance and MIPS optimization, defect RCA.