Jeff Baumgardt

Denver, CO · Available for full-time roles

Jeff Baumgardt

Senior Full-Stack Engineer

15+ years shipping product-grade React and Next.js systems across FinTech, AI, and ops.

  • React
  • Next.js
  • TypeScript
  • Node.js
  • GraphQL
  • PostgreSQL
  • AWS
  • Clerk

About

Senior engineer who still owns the details

I build production web applications end-to-end — interfaces people trust, APIs that hold under load, and demos that prove the hard parts: auth, payments, multi-tenant boundaries, real-time data, and LLM-backed product surfaces.

  • Sole frontend engineer on a FinTech platform managing $167M+ card spend
  • Greenfield SaaS from Figma to production across AI, LegalTech, and FinTech
  • React Denver lead organizer since 2015 — mentoring and speaking across the community

Experience

Where I've built at scale

  1. Tallied

    Senior Front-End Engineer

    2024 — 2026

    Greenfield FinTech platform from Figma to production — $167M+ card spend, real-time reporting, Turborepo design system.

  2. Tempello

    Lead Front-End Engineer

    2023 — 2024

    Next.js SaaS MVP for AI-powered legal billing — component architecture, GraphQL/Hasura, performance ownership.

  3. DataRobot

    Senior Front-End Developer

    2023

    External database connector widget linking customer datasets to ML models for inference.

  4. Plainsight

    Senior Front-End Developer

    2019 — 2023

    In-browser auto-labeling for computer vision — dashboard, upload pipeline, live inference, CI/CD on Kubernetes.

  5. OpenText

    Senior Front-End Developer

    2012 — 2019

    Enterprise e-discovery at scale — document viewers, review management, admin suite for 1,000 concurrent reviewers.

Contact

Let's talk about the role you're hiring for

Open to senior frontend and full-stack roles. Happy to walk recruiters through any live demo above.