SECTION I · THE BRIEF
Brief #29293Updated 22 AUG 2026SAN FRANCISCO, CAAshbyY COMBINATOR
Employbl Company Profile

Infrastructure Engineer

Relace AI platform generates custom made LLMs to create better models.

Location
San Francisco, CA
Company size
1–10
Posted
3w ago
Via
Ashby
Section II · Full ProfileFree with an account
  • 01Comp band & equity packageLocked
  • 02Seniority & experience requirementsLocked
  • 03Interview process & rubricLocked
  • 04Hiring manager & team contextLocked
  • 05Growth trajectory in this roleLocked
  • 06Offer & decision timelineLocked

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Infrastructure Engineer

Relace· San FranciscoView company profile


Job title
Infrastructure Engineer
Job location
San Francisco
Job description

About Us

Relace is building the models and infrastructure that code agents reach for. We power the fastest model on OpenRouter (10,000 tok/s) and deliver optimized small language models designed for retrieval, application, and core code generation functions.

Our technology supports some of the world’s fastest-moving companies — including Lovable, Figma, and Vercel — as they deploy and scale code generation to hundreds of millions of users. We recently raised our Series A from a16z, and we’re growing quickly.

Our team is made up of mathematicians, physicists, and computer scientists who are deeply passionate about their craft. If you thrive on ambitious technical problems, care about elegant systems design, and want to build the foundation of how code gets written at scale, this is the place for you.

The Role

As an Infrastructure Engineer at Relace, you’ll design and operate the systems that power our high-performance inference and training infrastructure. You’ll work closely with our research and product teams to ensure our models run at scale with reliability, speed, and cost-efficiency. This is a hands-on engineering role where you’ll shape how we build and scale the backbone of modern code generation.

You’ll have the opportunity to:

- Architect and manage the infrastructure powering our ultra-fast inference and training stack.

- Build reliable, efficient systems for deploying and scaling ML workloads globally.

- Work on GPU scheduling, distributed systems, and high-performance cloud deployments.

- Optimize performance and cost across compute, networking, and storage layers.

- Collaborate with world-class engineers to push the limits of what small models can do.

Requirements

2+ years of experience writing high-quality production code

Strong experience with cloud infrastructure (AWS, GCP, Azure, or equivalent)

Experience with data science and systems optimization

Familiarity with ML infrastructure, GPU’s, etc. a plus

Work out of our SF office in FiDi

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Where this role is based

San Francisco, CA

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Relace headquarters

San Francisco, CA

Company size

110 employees

Founded

2025

Total raised

$23,000,000

View company profile ↗

Funding rounds