Sr. Engineer – Mainframe And Aws Integration Engineer
Remote / Online - Candidates ideally in
District of Columbia, USA
Listed on 2026-09-04
District of Columbia, USA
Listing for:
Widenet Consulting
Full Time, Remote/Work from Home
position Listed on 2026-09-04
Job specializations:
-
Software Development
AWS, Backend Developer, Software Engineer, Cloud Engineer - Software
Job Description & How to Apply Below
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, Event Bridge, SQS, SNS, DynamoDB, and RDS/Aurora. Experience building CICS web service, 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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