Mainframe Developer

About The Role

As a Mainframe Modernization Enterprise Architect, you will lead the target-state architecture for a large-scale legacy modernization program across a complex portfolio of applications. You will collaborate with client stakeholders, architecture leaders, engineering teams, and GenAI-enabled delivery workstreams.

Responsibilities

• Define modernization sequencing and architecture runway based on application complexity, dependencies, risks, and business priorities.
• Lead architecture governance, including Architecture Review Boards, solution design approvals, reusable standards, and technical decision-making across parallel teams.
• Guide the extraction and validation of business rules, data structures, control flow, and requirements from COBOL, JCL, copybooks, CICS, VSAM/DB2, and other mainframe artifacts.
• Define architecture and orchestration standards for Claude-based GenAI agents supporting automated COBOL rule extraction, forward engineering, Java service generation, Angular component generation, and test-case creation.
• Establish prompt engineering standards, agent evaluation criteria, human-in-the-loop validation checkpoints, and guardrails for accuracy, auditability, and hallucination risk.
• Define microservices, API, event-driven, Angular front-end, cloud, DevOps, observability, security, and quality standards across modernization teams.
• Act as the technical escalation point across workstreams, tracking architecture KPIs such as extraction accuracy, code-generation acceptance rate, defect leakage, and migration velocity.

Requirements

• 15+ years of experience in software architecture, including 5+ years leading large-scale mainframe modernization or legacy transformation programs across multi-application portfolios.
• Strong hands-on knowledge of legacy/mainframe technologies, including COBOL, JCL, CICS, VSAM/DB2, copybooks, batch processing, and online processing patterns.
• Proven experience with reverse engineering, legacy code analysis, business rule extraction, requirement reconstruction, and traceability from legacy code to modern requirements.
• Strong architecture experience with Java, Spring Boot/Spring Cloud, REST or GraphQL API design, microservices, and event-driven architecture.
• Experience defining Angular front-end architecture, including component architecture, state management, design-system adoption, and reuse of enterprise component libraries.
• Deep AWS cloud architecture experience across compute, storage, networking, security, IAM, CI/CD landing zones, performance, resiliency, scalability, observability, and cost optimization.
• Experience with GenAI or agentic systems, including LLM-based agent design, prompt engineering, tool orchestration, and AI-assisted code transformation.
• Strong leadership, documentation, stakeholder management, and technical governance skills, with the ability to align multiple teams toward a shared modernization vision.

Qualifications

• Experience embedding GenAI or agentic tooling into enterprise software delivery pipelines.
• Insurance, financial services, healthcare, or other regulated-industry modernization experience.
• Experience with Docker, Kubernetes, ECS, EKS, Terraform, CloudFormation, DB2/VSAM data migration, and enterprise observability platforms.
• AWS Certified Solutions Architect – Professional certification.
• TOGAF or equivalent enterprise architecture certification.
• Experience working in offshore/onsite distributed delivery models.

Skills

• GenAI or agentic systems experience.
• Cloud architecture experience.
• Legacy code analysis and modernization experience.
• Angular front-end development.
• Microservices and event-driven architecture.
• DevOps and observability practices.
• Leadership and stakeholder management skills.

Benefits

• Medical/Dental/Vision/Life Insurance.
• Paid holidays plus Paid Time Off.
• 401(k) plan and contributions.
• Long-term/Short-term Disability.
• Paid Parental Leave.
• Employee Stock Purchase Plan.