Senior Software Engineer (Full Stack)

Rec Technologies•San Francisco, CA

3d•Hybrid

About The Position

This is not a seat-filling role. We're a Series A company in scaling mode, adding new partners and users every day, and every engineer we hire shapes what Rec becomes. As a senior engineer, you'll own meaningful surface area across our product. That might mean facility management (reservations, permitting, invoicing), program management (camps, classes, lessons, eligibility), or payments and platform (payments, financial transactions, accounting, reporting). Wherever you land, you'll work end to end, from consumer-facing booking flows, to staff tools for coaches and administrators, to the systems that keep parks humming behind the scenes. You'll make architectural decisions, influence the roadmap, and help us build something the recreation industry has been waiting decades for.

Requirements

5+ years of experience building software in collaborative environments.
AI fluency is non-negotiable. You already use AI tools daily and have real judgment about when to trust them, when to verify, and when to override. If AI tools aren't yet core to how you work, this role will be a rough fit.
You ship with quality. Fast, clean, and proud, but never careless. Every customer transaction matters to us: a missed swim lesson registration, a double-booked court, a failed payment. Reliability is the baseline.
Product judgment is part of the job. You don't just follow orders. You think critically about what to build, what to defer, and what to push back on. You ask "should we?" before "how do we?"
You thrive in ambiguity. Early-stage problems are rarely well-defined. You bring order without over-engineering, and you know the difference between clarifying a spec and getting stuck on one.
You work like a partner, not just a coder. You think end-to-end alongside Product, Design, and Partner Success. You communicate clearly, candidly, and constructively. Strong opinions, loosely held, with a bias toward what works.
Frontend: Next.js (hosted on Vercel), React, TypeScript
Backend: Node.js, Koa, Objection.js, PostgreSQL
Infra & Ops: AWS, Temporal, Twilio
AI & Tooling: AI proficiency is mandatory here, not optional. Every engineer uses AI tools daily, for code generation and review, for operational work via MCP servers and tool use, and for data analysis. We expect you to already be fluent with tools like Claude Code, Cursor, or equivalent, and to have strong judgment about when to lean on AI and when to override it.

Nice To Haves

You're fired up by the mission. We work hard because recreation matters to families, coaches, and kids across the country. We also ski, hike, and get outside. We're building for recreation, after all.

Responsibilities

Partner closely with Engineering, Product, Design, and Partner Success to shape strategy and drive products from idea to launch, and beyond.
Build and maintain the core platform powering everything from booking experiences to staff tools to municipal dashboards.
Write clean, reliable, maintainable code.
Elevate the bar through thoughtful reviews and technical mentorship.
Use AI tools fluently across your workflow, from scaffolding and code review to debugging production issues and analyzing data.
Invest in the foundation. Make smart, forward-thinking decisions that keep our platform nimble and scalable as we grow.