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ChelseaKR/README.md

Hi, I'm Chelsea Kelly-Reif 🏳️‍⚧️

Python TypeScript React AWS PostgreSQL Public systems engineering leadership Accessibility built in AI evidence and human review Open to W-2 engineering leadership Trans rights are human rights

Engineering leader for public systems. I build teams, portfolios, and the technical foundations those teams need to deliver.

Most recently, I was a Senior Director of Engineering at Coforma and one of three Senior Directors in its 50-person engineering organization. I led a 22-person reporting structure with five direct reports, including three engineering directors. I owned the company-wide healthcare engineering portfolio and served as engineering lead for business development.

That work stayed close to outcomes:

  • Nine engineers moved into senior or leadership roles, including four promotions to Director or Principal. My teams had three voluntary departures across three years.
  • I supported $150M+ in federal contract wins in 2024 at a 70%+ win rate and held delivery responsibility for $100M+ in awarded prime contracts.
  • I owned engineering for the seven-application CMS Medicaid & CHIP Data Collection Tools suite, oversaw Coforma's work on the federal Medicaid Drug Programs system, and led the firm's FHIR and health data interoperability specialization.
  • I was engineering lead and principal engineer for MyCareer.NJ.gov, New Jersey's statewide workforce platform. It has served 1.8 million users since December 2023 and provides bilingual career, training, labor-market, tuition-assistance, and support-service tools.

On MyCareer.NJ.gov, I led the platform and set architecture across its three production codebases. The work included a zero-downtime GCP-to-AWS migration, test coverage raised from zero to 93–96%, a 94% reduction in known vulnerabilities, complete English and Spanish access, and CTDL publishing that made New Jersey training credentials interoperable with the national Credential Engine ecosystem.

I also designed its shared applied-AI foundation and six primary proof-of-concept features. The foundation is now live in production; the features remained gated from end users pending pilot approval. The most mature was a bilingual, grounded career coach with cost-aware model routing, a merge-blocking adversarial test gate, and evaluation designed to expose weak categories rather than hide them. The 1.8 million-user count above applies to the production platform; the AI features were proofs of concept, not deployed services.

Before Coforma, I built public systems in California state government and public higher education:

  • At the California Energy Commission, I led development of regulatory energy-data systems, helped move the commission's data infrastructure to AWS, and operated the Title 20 appliance certification system.
  • At the California Public Utilities Commission, I directed the Transportation Carrier Portal, which launched in 2021, and architected a claims portal for telecommunications-access and broadband programs.
  • At the California Department of Social Services, I built and operated caregiver-safety, licensing-payment, legislative-analysis, and benefits-program systems.
  • At UC Berkeley's Graduate School of Education, I led application development for the equity-focused 21st Century California School Leadership Academy.

I hold an M.S. in Software Engineering from CSU Fullerton, which I completed while working full-time in state government. I also hold a B.S. in Computer Science from the University of Oregon and an ITIL Foundation certification.

Based in Davis, California · Portfolio · LinkedIn

Open source worth opening

These independent projects are public and inspectable. Most are pre-1.0 tools or reference implementations, not evidence of organizational adoption. Each repository documents what has shipped, what remains experimental, and what still requires human review.

  • tods-validate is a deterministic validator for the Transit Operational Data Standard. Version 0.8.0 is on PyPI, and the project ships a GitHub Action, container image, pre-commit hook, and browser playground.
  • GTFS Scorecard is a live transit-data-quality service covering a curated registry of 1,700+ feed records and 1,100+ published scorecards. It also ships a GitHub Marketplace Action and a read-only MCP server.
  • NearMiss is a beta road-safety analysis toolkit that uses exposure-normalized rates, confidence intervals, and statistically controlled hotspot detection instead of treating raw report density as risk.
  • Swelter is an alpha reference system for community heat and air quality, with correction provenance, a bilingual dashboard, and OGC SensorThings exports.
  • ledger is a beta, privacy-first digital-preservation tool using BagIt, PREMIS, Dublin Core, encrypted contributor identities, and consent-based disclosure. It contains synthetic and consented fixtures only.

How I lead and build

I lead at portfolio altitude and stay technically deep: I set architecture, challenge assumptions, and understand delivery risk. Grit is not a staffing model: I build clear ownership, strong managers, useful standards, and systems that do not depend on one heroic person.

My current technical center of gravity is TypeScript, Python, React and Next.js, AWS, PostgreSQL, data interoperability, applied AI evaluation, and delivery systems. Earlier work also spans C# and .NET, Salesforce, Snowflake, Azure, GCP, and Natural/ADABAS modernization.

I treat accessibility, privacy, security, operability, and multilingual delivery as engineering requirements. For AI systems, that means evidence-constrained generation, explicit refusal, adversarial testing, disaggregated evaluation, cost controls, feature flags, and human review for legal, policy, subject-matter, and accessibility judgments.

AI agents are part of my development workflow. I choose the architecture, write the acceptance criteria, review the output, and decide whether it is ready to release.

What I will and won't work on

  • I won't work on weapons, warfare, policing, mass surveillance, or technology that profits from incarceration.
  • I look for organizations whose work helps people routinely failed by public systems, and whose leadership reflects the communities they serve.
  • I won't use AI to decide whether someone gets a job, benefit, service, or opportunity. It can support a person's decision, but that person should be able to inspect the evidence, correct bad information, and make the final call.
  • I collect as little personal data as practical and prefer local or offline tools when they fit.
  • I separate sources, calculations, and interpretation. When a system does not know, it should say so.

Selected coverage and recognition

MyCareer.NJ.gov has been featured by Fast Company and the Royal Statistical Society's Real World Data Science. The Harvard Kennedy School's Project on Workforce described its Training Explorer as a "promising potential model," and Credential Engine has featured its CTDL publishing work. The platform was also nominated for a NASWA Workforce Innovation Award. In 2023, I joined a Digital Services Coalition roundtable on AI and machine learning in federal and civic technology.

What I'm looking for

I'm interested in W-2 engineering leadership roles: VP of Engineering, Head of Engineering, Senior Director, Director, or Principal Engineering Manager. I want to lead teams and managers, shape architecture and delivery systems, and build reliable, accessible technology in public health, workforce and social services, energy and utilities, government digital services, or responsible AI.

Reach me at chelseakr.com or on LinkedIn.

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