Sr. Engineer – Mainframe and AWS Integration Engineer
Remote , Washington
Posted: 2026-09-02
Job Type: Contract
Job Description:
Location: This is a remote position in the US only.
Job Description:
Hands-on senior engineer to extend and integrate a mainframe-based annuity policy administration system with AWS. The engineer will participate in architecture discussions and implement solutions end to end, with the technical lead providing final design direction.
Key Responsibilities
- Develop and support applications using COBOL, CICS, DB2, VSAM, and JCL.
- Build Python-based APIs, integrations, and automation on AWS.
- Develop real-time and event-driven integrations supporting straight-through transaction processing.
- Implement transaction validation, tracking, idempotency, retries, reconciliation, and monitoring.
- Partner with a data specialist to build an Operational Data Store on AWS sourced primarily from DB2, with limited VSAM data.
- Contribute to initial loads, near-real-time ingestion, transformations, validation, and data reconciliation.
- Support testing, deployment, documentation, observability, and production troubleshooting.
Must-Have Skills
- Strong, hands-on COBOL, CICS, DB2, VSAM, and JCL experience.
- Strong Python development skills.
- Strong AWS engineering experience with services such as Lambda, API Gateway, S3, Step Functions, EventBridge, SQS, SNS, DynamoDB, and RDS/Aurora.
- Experience building CICS webservice, REST APIs and event-driven integrations.
- Strong AWS data-engineering fundamentals.
- Experience developing and supporting business-critical mainframe systems.
- Ability to understand complex legacy business logic and implement modern integrations end to end.
Preferred Skills
- Vantage or similar mainframe-based annuity policy administration experience.
- DB2-to-AWS or near-real-time data-integration experience.
- Assembler experience.
- Generative AI, RAG, or Amazon Bedrock experience.
Pay Range: $70.00 – $74.00 per hour, depending upon experience.
Health & Medical Benefits, 401K, Employee Assistance Program, and Sick Time applicable by state.
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