Senior Software Engineer (Infrastructure)

Posted 2 Days Ago
Be an Early Applicant
San Francisco, CA, USA
Hybrid
140K-200K Annually
Senior level
Artificial Intelligence • Kids + Family • Social Impact • Software • Sports
Building the AI-powered operating system for the activity economy. We're helping communities play, connect and thrive.
The Role
As a Senior Software Engineer, you will lead infrastructure efforts, manage PostgreSQL optimization, ensure system reliability, and integrate vendors as Rec scales.
Summary Generated by Built In
About Rec

At Rec (rec.us), we're reimagining how the world plays, trains, competes, explores, and gets outside. Our mission is to empower the entire recreation community to thrive, and our vision is bold: power recreation worldwide.

Booking a tennis court? Signing your kid up for swim lessons? Trying to find an open rec league? It shouldn't feel like filing your taxes. We're partnering with parks and rec departments, golf courses, campgrounds, gyms, and more to transform a $105B industry stuck in the Stone Age.

We're redesigning recreation from the ground up for the mobile-first, AI-powered world we live in.

Who We Are

We're a small team with outsized ambition. We've built products and led teams at places like Google, Amazon, Uber Eats, MasterClass, The Athletic, Nextdoor, and more.

Our Values:

  • Be Relentless. Move fast. Own it. Ship real value early and often.

  • Win Together. Speak up and go beyond the boundaries of your role.

  • Take Pride. Treat this like it's yours, because it is.

About The Role

This is not a seat-filling role. We're a Series A company in scaling mode, adding new partners and users every day, and the foundation under all of it needs someone who owns it.

That's this role. You'll take the lead on the infrastructure work that's currently spread across too few people: database upgrades and optimization, performance profiling, compliance, launch readiness, and the scaling decisions that determine whether we can support 10x and 100x the traffic we have today. You'll evaluate and integrate vendors where it makes sense (Temporal, Epsio, and others), and you'll make sure the platform keeps up as we add partners and users every day.

You'll still ship product code when the work crosses into your domain, but the primary job is owning the foundation. We need someone who treats reliability and performance as first-class product features, because for our partners, they are.

What You'll Do
  • Own the core infrastructure: AWS, PostgreSQL, Temporal, and the systems that keep Rec running reliably as we scale.

  • Lead database performance and optimization work, including upgrades, query profiling, indexing strategy, and capacity planning.

  • Drive performance and reliability improvements across the stack. Identify bottlenecks before they hit production, and resolve them when they do.

  • Own launch readiness for major product releases and partner onboardings. Load test, capacity plan, and make sure we don't fold under pressure.

  • Evaluate and integrate infrastructure vendors (Temporal, Epsio, observability tools, etc.). Build when it's the right call, buy when it isn't.

  • Partner with Engineering, Product, and Partner Success to scope the infrastructure work behind new product areas.

  • Help us stay compliant as we grow (SOC 2, PCI, and whatever else the business requires).

  • Contribute to product code when the work touches your domain, but treat the foundation as your main job.

  • Use AI tools fluently across your workflow, from writing migrations and runbooks to debugging production issues and analyzing metrics.

What We're Looking For
  • 5+ years of experience building and operating infrastructure for production systems at scale.

  • You're fired up by the mission.

  • AI fluency is non-negotiable.

  • Deep experience with PostgreSQL in production. Schema design, query optimization, replication, upgrades, capacity planning. You've been on the other end of a database emergency and you know how to prevent the next one.

  • Strong AWS chops. You know the services we rely on, the ones we should avoid, and how to keep the bill from getting out of hand.

  • You think in orders of magnitude. You can look at a system handling 10K transactions a day and reason about what breaks at 100K, 1M, and 10M.

  • You ship with quality. Reliability is the baseline.

  • You have good vendor instincts. You know when to build versus buy, you can evaluate a new tool quickly and honestly.

  • You thrive in ambiguity.

  • You communicate clearly, candidly, and constructively.

Our Stack
  • Frontend: Next.js (hosted on Vercel), React, TypeScript

  • Backend: Node.js, Koa, Objection.js, PostgreSQL

  • Infra & Ops: AWS, Temporal, Twilio

  • Where you'll spend most of your time: AWS (primary), PostgreSQL, Temporal, observability and performance tooling (Datadog), and whatever vendors we bring in as we scale.

  • AI & Tooling: Claude Code, Cursor, or equivalent — mandatory.

Pay & Benefits
  • Compensation: $140,000–$200,000 base + meaningful equity

  • Benefits: Flexible PTO, top-tier health/dental/vision, 401(k).

  • Work location: San Francisco — in-office most days at our downtown SF office.

Ready to build something real? Something fun? Something big? We're ready for you.

Skills Required

  • 5+ years of experience building and operating infrastructure for production systems at scale
  • Deep experience with PostgreSQL in production
  • Strong AWS experience
  • AI fluency
Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: San Francisco, CA
40 Employees

What We Do

Rec is building the operating system for the activity economy. Every day, millions of people look for ways to play, learn, move, compete, and connect in their communities. Yet the technology powering recreation has been largely ignored for decades. modernizing the $105B activity industry – parks & recreation departments, golf courses, campgrounds, gyms, and play agencies. Our platform powers registrations, facility reservations, instructor marketplaces, payments, permits, and operations for cities and recreation organizations across the country. While much of the tech industry is focused on capturing attention, we're focused on creating more opportunities for people to spend time away from screens via more youth sports, more recreation classes, more community events, and more ways to stay active and connected.

Why Work With Us

We're applying Silicon Valley talent and AI innovation to one of the largest, least-modernized industries in the world to create more play, movement and connection in the real world. If you get fired up by making tech that actually matters to families, coaches, and kids all over the country, come join us.

Gallery

Gallery

Similar Jobs

Decagon Logo Decagon

Senior Software Engineer

Artificial Intelligence • Software
In-Office
San Francisco, CA, USA
49 Employees
200K-400K Annually

NVIDIA Logo NVIDIA

Cplusplus Software Engineer

Artificial Intelligence • Computer Vision • Hardware • Robotics • Metaverse
In-Office
4 Locations
21960 Employees
152K-288K Annually
In-Office
3 Locations
26259 Employees
75K-215K Annually
In-Office or Remote
2 Locations
550 Employees
210K-500K Annually

Similar Companies Hiring

Hanover Park Thumbnail
Artificial Intelligence • Fintech • Software • Financial Services
New York, New York
31 Employees
Kepler  Thumbnail
Fintech • Software
New York, New York
6 Employees
Onshore Thumbnail
Artificial Intelligence • Fintech • Software • Financial Services
New York, New York
60 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account