Keith Downing
Full-Stack Software Engineer · APAX Software

I turn business workflows into software people use every day.

Rebate apps, booking platforms, facility admin tools and storefronts, built in TypeScript, React, Next.js, PostgreSQL and Django. On Mass Lodge I was the engineer and product owner during a major phase of development.

Download resume ↓See the case studies
At a glance
CurrentAPAX Software
Jan 2022 – present
RoleFull-stack engineer
Software Engineer 3
Core stackTypeScript · React · Next.js
PostgreSQL · Drizzle · Django
Also taughtAwesome Inc bootcamp,
2022–2023

Each case study covers the problem, the decisions and what shipped. The code is linked where it's public.

SCHEMA TO UIWORKFLOW OWNERSHIPACCESSIBILITY BY DEFAULTPRODUCT DECISIONS INCLUDED
Featured projects

Four production systems I helped ship.

01
Mass Lodge
Enterprise travel platform. Replaced spreadsheet-run hotel request, reservation and billing processes with one system the office works in daily.
Role
Product Owner + Engineer
Scope
Reservations, billing, documents, integrations
TypeScriptNext.jsDrizzleQuickBooks
Read →02
KIPRC / FindHelpNow
CDC-funded public health platform. Helps people in crisis find treatment openings, and gives state teams the tools to keep listings current.
Role
Full-stack engineer
Scope
Facility search, admin forms, accessibility
Next.jsGraphQLDjangoMaps API
Read →03
ABG Rebate Platform
Internal rebate tool. Moved program invites, submission review and payout reporting out of email threads and into a reviewable queue.
Role
Full-stack engineer
Scope
Five user roles, duplicate detection, exports
ReactSupabaseDrizzleVitest
Read →04
Play1 Media
Fundraising SaaS. A short contract to give campaign staff real rich-text editing and to fix org-context bugs in a multi-tenant app.
Role
Contract full-stack developer
Scope
Editor toolbar, sponsor directory, org context
Next.js 15TipTapPostgreSQL
Read →
How I work

Requirements first,
code second.

Start at the schema

On Mass Lodge I designed the reservation, transaction and client entity models before building any screens.

Own the workflow, not the ticket

I take whole workflows end to end, from hotel booking to billing to print documents, and make the product calls on them.

Accessibility is part of done

FindHelpNow serves people in crisis, so labeling, keyboard nav and contrast were requirements, not cleanup.

Build the reusable part

Shared validation, ORM utilities and UI patterns in the APAX monorepo, so the next app starts further along.

Open to new roles

Hiring? Start with
the resume.

Resume (PDF) ↓Contact →