Senior Technical Architect

Job Description

Senior Technical Architect

Curitiba, Paraná

Job Summary

ROLE

BAND

TECH STACK

EXPERIENCE

TYPE

Mainframe Architect

E3.2

Mainframe

13+ Years

Full-time

Role Purpose

Provide end-to-end technical leadership for enterprise solutions on the mainframe platform: translating business and non-functional requirements into scalable, secure and resilient architectures, and guiding engineering teams through implementation, modernization and operational readiness.

Key Responsibilities

Architecture & Design

• Own high-level and detailed architecture for complex mainframe applications, APIs, integrations and modernization initiatives.
• Convert functional and non-functional requirements into blueprints, component designs, interface contracts and implementation guidance.
• Select appropriate architecture patterns and assess trade-offs across scalability, performance, security, cost and maintainability.
• Ensure alignment with enterprise standards, approved platforms, reusable patterns and target-state roadmaps.

Technical Leadership & Governance

• Give hands-on architectural direction to development, QA, DevOps, security and support teams.
• Set coding, API, integration, logging, configuration, testing and deployment standards.
• Run architecture reviews, design walkthroughs, technical risk assessments and PoC evaluations.

Security, Reliability & Performance

• Embed secure-by-design across identity, authorization, secrets, data protection and interface security.
• Define resiliency patterns - retry, timeout, failover, HA and DR - plus performance and capacity targets.
• Ensure observability through structured logging, metrics, tracing, dashboards and alerting.

Stakeholder Engagement

• Facilitate technical discovery with business, product, security, infrastructure and vendor stakeholders.
• Communicate complex decisions clearly to engineering and leadership audiences.
• Maintain architecture artifacts, decision records, risk logs and technical roadmaps.

Key Responsibilities

Technology Focus - Mainframe

• 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

Core Skills

COBOL, JCL, CICS, VSAM, DB2 and z/OS utilities; batch and online program design and optimization.

Design & Architecture

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.

Quality & Operations

Unit and regression testing, batch cycle validation, performance and MIPS optimization, defect RCA.

Experience & Qualifications

• 13+ years in software engineering, with strong enterprise mainframe design and delivery experience.
• Proven track record as solution, application or technical architect on complex programmes.
• Bachelor's degree in Computer Science, Engineering or IT, or equivalent experience.
• Relevant platform, cloud, architecture or DevOps certifications advantageous, not mandatory.

Leadership & Behavioural

• Architecture ownership with a pragmatic, delivery-focused mindset.
• Structured problem solving and sound judgement under ambiguity.
• Clear communication and influence across technical and business stakeholders.
• Coaching mindset and strong stakeholder management.

Location-Specific Expectations

• Work from the Curitiba delivery location with local customer stakeholders and global teams.
• Participate in on-site and virtual workshops, design reviews and governance forums.
• Effective communication in a multi-country model, with overlap into European and Indian working hours.

Key Deliverables & Success Measures

• Approved, traceable, implementation-ready architecture and design artifacts.
• Documented decisions, standards, risks, assumptions and mitigations.
• Solutions meeting agreed security, performance, reliability and operational readiness.
• Reduced technical risk via early validation, reusable patterns and automation.
• Timely resolution of blockers; improved engineering consistency and code quality.

Skill Requirements

Technology Focus - Mainframe

• 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

Core Skills

COBOL, JCL, CICS, VSAM, DB2 and z/OS utilities; batch and online program design and optimization.

Design & Architecture

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.

Quality & Operations

Unit and regression testing, batch cycle validation, performance and MIPS optimization, defect RCA.

Experience & Qualifications

• 13+ years in software engineering, with strong enterprise mainframe design and delivery experience.
• Proven track record as solution, application or technical architect on complex programmes.
• Bachelor's degree in Computer Science, Engineering or IT, or equivalent experience.
• Relevant platform, cloud, architecture or DevOps certifications advantageous, not mandatory.

Leadership & Behavioural

• Architecture ownership with a pragmatic, delivery-focused mindset.
• Structured problem solving and sound judgement under ambiguity.
• Clear communication and influence across technical and business stakeholders.
• Coaching mindset and strong stakeholder management.

Location-Specific Expectations

• Work from the Curitiba delivery location with local customer stakeholders and global teams.
• Participate in on-site and virtual workshops, design reviews and governance forums.
• Effective communication in a multi-country model, with overlap into European and Indian working hours.

Key Deliverables & Success Measures

• Approved, traceable, implementation-ready architecture and design artifacts.
• Documented decisions, standards, risks, assumptions and mitigations.
• Solutions meeting agreed security, performance, reliability and operational readiness.
• Reduced technical risk via early validation, reusable patterns and automation.
• Timely resolution of blockers; improved engineering consistency and code quality.

Other Requirements

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Information at a Glance

Why HCLTech?

At HCLTech, youll supercharge your potential. Youll find your career. And youll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 230,000 people 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. Consolidated revenues as of 12 months ending September 2026 totaled $14.8 billion.