Adam
Freemer.

Lead engineer on Asset Manager, the internal USCIS application managing vulnerabilities and availability of every asset on the DHS network.

• Driving modernization and optimization by planning and executing critical system updates and new feature delivery.
• Leveraging years of DHS / USCIS infrastructure depth to guide architecture decisions.

Lead engineer on the Department of Labor Open Data Portal and agency-wide public API.

• Re-architected an over-complex distributed AWS ETL pipeline into the core Rails app for major performance and reliability gains.
• Refactored back-end code and database queries for significant API speedups.
• Shipped the re-architecture before agency-wide DOGE cuts dissolved the project group.

Lead developer on a USCIS contract supporting a portfolio of 30+ applications.

• Architected full-stack Rails apps with Turbo/Stimulus and React front-ends.
• Led a team of 6, mentored junior developers, and roadmapped architecture.
• Helped modernize the Rails/JS portfolio onto Dockerized Amazon EKS / Kubernetes.

Senior engineer on the va.gov GI Bill modernization program, building React front-ends and Rails APIs, mentoring junior developers, and leading troubleshooting.

Lead developer across a USCIS / DHS program, covering full-stack delivery, mentoring, and architecture roadmapping.

• Led Databricks API integration to process large national citizenship datasets.
• Project lead on QADB (naturalization document auditing) and eSTAT (G-22/G-23 field-ops data); senior dev on ROSS, a global RAIO scheduler.

Built features on the enterprise operations & financials Rails core, plus a monthly Ruby job ingesting terabyte-scale AWS usage files.

Built Rails dashboards monitoring national system status and outages during the Xfinity X1 rollout.