Mainframe Senior Developer - Remote

HCLTech; Brasil; Presencial; BRL 150 000 - 210 000; Tempo integral

Resumo da oferta

HCLTech is seeking an experienced Senior Mainframe Developer to design, build and support COBOL/CICS/DB2 batch and online components on z/OS. You will optimize performance, resolve complex defects and mentor junior engineers, while collaborating with cross-functional teams in an agile environment.

Role emphasizes delivering secure, well-tested solutions and participating in design discussions, code reviews and deployment activities across distributed and cloud interfaces.

Qualificações

• Proficiency in COBOL, JCL, CICS, VSAM and DB2 on z/OS.
• Experience designing and optimizing batch and online programs.
• Strong debugging, performance tuning and problem-solving skills.

Responsabilidades

• Design, develop and maintain mainframe components per architecture and standards.
• Translate user stories and specs into clean, testable mainframe code.
• Write and maintain unit, integration and regression tests with good coverage.
• Participate in code reviews and provide constructive feedback.
• Apply secure coding practices and effective logging across modules.
• Deliver scope within sprint/release timelines with quality and reliability.
• Support deployments, environments, incident analysis and durable fixes.
• Mentor junior developers and share knowledge through pairing and reviews.
• Collaborate with leads, QA, analysts and support teams in an agile setup.

Conhecimentos

Mainframe Technologies

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.