Founding Engineer Infra/Backend

Praxis, Inc.; New York (NY); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Daily lunch and snacks in office

Medical, dental, and vision coverage

Unlimited PTO

Spur Swag

Job summary

Spur in New York City is seeking a founding infra/backend engineer to architect the backbone of Spur’s core platform, powering thousands of browser and web agents in the cloud. You will own end-to-end infra, from low-level systems to observability and CI/CD, collaborating with the founders to deliver high-impact solutions.

The role demands 5+ years of at-scale infra experience, deep Docker/Kubernetes/Terraform expertise, and the autonomy to drive projects from conception to production in a

Qualifications

• Have 5+ years designing, shipping, and operating at-scale infra.
• Have deep expertise in Docker, Kubernetes, Terraform, CI/CD.
• Understand how infrastructure decisions directly impact product performance and customer experience.
• Have high autonomy, and are able to drive projects on your own.
• Are ambitious and driven, and care a lot about doing great work with great people.

Responsibilities

• Build and scale our core infra to run and launch thousands of browser and web agents every day.
• Design, implement and maintain our clusters, CI/CD, observability, and CI/CD practices
• Rapidly iterate with product, engineering, and founders

Skills

Infra design & ops

Distributed systems

CI/CD pipelines

Cloud platforms

Tools

Docker

Kubernetes

Terraform

CI/CD tooling

Job description

Overview: Spur is every company’s AI QA Engineer.

New York City

Spur builds fundamental technology for the future of QA: autonomous browser agents that think, explore, validate, and self-heal like real users. We’re not another test tool — we’re reimagining how digital teams ship with confidence.

The market has responded loudly. Top brands (Alo Yoga, Living Spaces, HelloFresh, Nextdoor, Abercrombie & Fitch, and more) are actively pulling us in. Inbound demand is exploding. Sales cycles are fast. And the product actually delivers — teams go live in days, not months.

We’re a small, elite team of builders from DeepMind, Figma, ex-founders and customers — shipping at a pace that big companies can’t touch.

Our Mission: We want to help our customers deliver the best digital experiences
Read our Manifesto: https://www.spurtest.com/founders-letter

The Role

As our founding infra/backend engineer, you’ll architect the backbone of Spur’s core platform—define, build, and scale mission-critical infra powering our web agents.

We own our entire stack end-to-end—you’ll orchestrate fleets of browsers and web agents in the cloud and optimize them at massive scale. You’ll work directly with the founders, solving frontier infra problems with real customer impact, and set the gold standard across our stack, from low-level infra to the UX delivered by our agents.

What you’ll do

• Build and scale our core infra to run and launch thousands of browser and web agents every day.

• Design, implement and maintain our clusters, CI/CD, observability, and CI/CD practices

• Rapidly iterate with product, engineering, and founders

Bonus Points

• Experience with distributed task queues, performance/scalability optimization

• Have worked driving impact at smaller teams and scaling infrastructure 0-1

You’ll Thrive Here If You

• Have 5+ years designing, shipping, and operating at-scale infra

• Have deep expertise in Docker, Kubernetes, Terraform, CI/CD, Terraform

• Understand how infrastructure decisions directly impact product performance and customer experience

• Have high autonomy, and are able to drive projects on your own.

• Are ambitious and driven, and care a lot about doing great work with great people

Benefits at Spur

• Daily lunch, snacks, and more are available everyday in the office (you help choose)!

• High quality medical, dental, and vision coverage options, flexible depending on your needs.

• Unlimited PTO (We believe that recharging is essential to being the best that you can be.)

• Spur Swag

Our office in New York City!

Spur is an Equal Opportunity Employer committed to diversity and inclusion in the workplace. All qualified applicants will receive consideration for employment without regard to sex, race, color, age, national origin, religion, physical and mental disability, genetic information, marital status, sexual orientation, gender identity/assignment, citizenship, pregnancy or maternity, protected veteran status, or any other status prohibited by applicable national, federal, state or local law.