Resume
Jeffrey R. Plewak
Senior Software Engineer
I build backend and cloud systems for teams that need reliable delivery and clear operational records. My work is strongest around APIs, AWS infrastructure, automation, testing, and review practices that make changes easier to understand.
Experience
Senior Software Engineer
Software Engineering & Development
2025-11 to Present, Owner
- Independent technical development focused on AI platform workflows, AWS infrastructure automation, deployment tooling, and reproducible backend systems across private and public GitHub projects.
- Architected and developed TraceMesh Orchestrator from scratch, an AWS serverless runtime platform using Terraform, Lambda, API Gateway, DynamoDB, IAM, Bedrock, and CloudWatch with deterministic deployment and validation workflows.
Lead Senior Software Engineer (Contract)
MSTRO / Think Systems Inc.
2024-09 to 2025-11, Contract
- Developed Python, Erlang, and Go backend services for orchestration, data processing, retrieval, validation, reporting, and operator-review workflows using FastAPI/Flask, PostgreSQL, REST/GraphQL APIs, and websocket-based service patterns.
- Built retrieval and prompt-controlled workflow services supporting schema validation, deterministic execution paths, and HITL-oriented review boundaries for operational AI processing systems.
Founder / Python Developer
MyGeo LLC
2024-02 to 2024-08, Owner
- Led development of cloud-based SEO, communications, and AI/API integration platforms using Python, React, Next.js, Node.js, MongoDB, PostgreSQL, and microservice-oriented architectures.
- Delivered communications and workflow tooling with SIP/RTP (bi-directional push-to-talk), CI/CD automation, deployment workflows, and technical RFP/SOW documentation for operational and customer-facing systems.
Senior Software Engineer
J.P. Morgan Chase
2022-07 to 2023-12, FTE
- Co-developed Python, Go, and Java backend automation and operational tooling supporting network analytics, deployment validation, and enterprise infrastructure workflows.
- Built internal operational platforms using Python, PostgreSQL, Kubernetes/EKS, S3-backed artifact workflows, and controlled API integrations to improve deployment visibility, auditability, environment validation, and production support across Asset & Wealth Management and Global Banking initiatives.
Senior Software Engineer
AIM Consulting / Nintendo of America
2022-02 to 2022-04, Consulting
- Developed Python AWS Glue ETL workflows and automation patterns using EventBridge, CloudWatch integrations.
- Supported Java/AWS backend modernization efforts involving Elasticsearch-oriented service development, containerization, and reusable development workflow standards.
Cloud Architect
Keysight Technologies
2021-08 to 2021-12, Consulting
- Developed cloud architecture and CI/CD workflow patterns in Linux environments using Docker, Kubernetes, Java, and Python.
Senior Software Developer
RAPP
2020-09 to 2020-11, Consulting
- Analyzed large codebases to identify service boundaries and support microservice modernization initiatives using Docker, AWS, Python, Java, and Git-based workflows.
Senior Software Engineer
Northrop Grumman / Aerotek
2020-02 to 2020-05, Consulting
- Developed Python workflows for CI/CD using BuildBot and GitHub API integrations supporting nightly and manual build systems.
Senior Software Engineer
Raytheon / Insight Global
2019-09 to 2019-12, Consulting
- Implemented LDRA tooling and static/dynamic analysis workflows supporting MISRA-C 2012 and DO-178C software certification.
Senior Software Engineer (SRE)
IBM Cloud
2019-01 to 2019-09, FTE
- Supported Kubernetes-based Python and Go microservices for IBM Cloud storage services with SLO/SLA expectations, CI/CD release controls, and production runtime troubleshooting responsibilities.
- Owned deployment and validation workflows for containerized services, including build automation, rollback support, and production release coordination.
Senior Software Engineer
Lockheed Martin
2018-01 to 2018-12, FTE
- Developed C++, Python, Perl, shell, and Java software for safety-critical avionics, radar simulation, and defense systems operating under DO-178 and audit-oriented engineering controls.
- Supported automation, product-line engineering, CI/CD-oriented build workflows, and software delivery standardization using Jenkins-based engineering workflows.
Senior Software Engineer
Raytheon
2016-12 to 2017-04, FTE
- Supported reconnaissance and geospatial mission systems involving GIS-oriented data models, automation tooling, and operational research workflows.
- Developed and maintained C++, Java/J2EE, Python, Flask, and Spring-based internal tooling supporting geospatial processing, automation, and defense-oriented engineering workflows.
Senior Python Engineer
Fidelity Investments (Veritude)
2017-05 to 2017-12, FTE
- Developed Python backend automation services supporting F5 load balancer configuration workflows, input validation, normalization, batching, rollback handling, production support, and operational reliability.
- Profiled application behavior, enhanced structured logging, and analyzed runtime bottlenecks to improve system reliability, troubleshooting visibility, and root cause analysis workflows.
Senior Python Engineer
Fidelity Investments (Veritude)
2015-04 to 2016-11, FTE
- Refactored monolithic applications into service-oriented and microservice-oriented architectures with clearer service boundaries, API integrations, and improved scalability and maintainability.
Software Engineer
Lockheed Martin
2012-06 to 2015-04, FTE
- Developed avionics and radar simulation software for defense systems operating within regulated engineering environments requiring strict verification, validation, and documentation controls.
- Built Python, Perl, shell, Java, and C++ automation supporting test execution, simulation workflows, data processing, integration, and repeatable engineering validation activities.
Software Engineer Associate
BAE Systems
2011-05 to 2012-06, FTE
- Developed multithreaded Java and C++ radar simulation software supporting defense-oriented tracking and operational research workflows within POSIX/Linux environments.
- Built backend systems, simulation tooling, packet-processing workflows, and engineering automation involving Java UI layers, C++ processing components, and Red Hat-based systems administration.