Software Engineer

Jack Singer

Building thoughtful software at scale —
guided by design, craft, and real-world impact.

Python — Django — JavaScript — TypeScript — React — Next.js — Node.js — PostgreSQL — Docker — AWS — Figma — Unix — REST API — Git — Tailwind —  Python — Django — JavaScript — TypeScript — React — Next.js — Node.js — PostgreSQL — Docker — AWS — Figma — Unix — REST API — Git — Tailwind — 
CodeHS Feb 2026 – Present

Software Engineer II

  • Overhauled curriculum storage by migrating 256 courses (20k+ items) from MySQL to Git; built an automated exporter and VS Code extension to navigate curriculum hierarchy
  • Upgraded internal data tooling with AG Grid, implementing server-side row models to virtualize datasets up to 300k rows
  • Revitalized the CodeHS API by adding key authentication, request tracking, and Swagger documentation (77 operations across 37 paths)
  • Led UX/UI redesigns across core teacher and student workflows serving 7M+ users
CodeHS Aug 2024 – Feb 2026

Software Engineer

  • Built the Typing Platform, shaping activity types, lesson flow, and UX; now used by thousands of students
  • Developed AI products including AI Creator and AI Chat, widely adopted to improve curriculum support and student guidance
  • Drove a developer experience initiative by integrating agentic AI tools into workflows; increased team PR throughput ~88%
  • Rebuilt bool.com's frontend with React and overhauled structured LLM data streaming; platform scaled to 1,300+ users and 8,000+ websites
CodeHS Jun 2023 – Aug 2023

Software Engineer Intern

  • Developed the CodeHS Elementary Platform in Django, focusing on the LMS, Ready-to-Go lessons, and integrations with Scratch and ScratchJr
  • Designed the UI/UX in Figma and implemented the frontend, delivering an accessible experience for students and teachers
  • Built internal admin tools for curriculum and marketing teams, streamlining workflows and enabling faster course development
Python Django JavaScript TypeScript React Next.js Node.js PostgreSQL Docker AWS Figma Unix REST API Git/GitHub Tailwind