RefolkCandidates
Open nowEngineeringPlatform (SFO)

Foundations Engineer (Platform Hybrid, SF in office)

Rox · San Francisco, California

Location
San Francisco, California, United States
Workplace
Hybrid
Employment
Full time
Level
Mid level
Posted
3 months ago

About this role

Platform Engineer (Infrastructure + Platform Systems)

About Rox

Rox is building the AI-native revenue operating system.

Most enterprise software was built for humans operating dashboards. Rox is built for agents operating systems.

Instead of static workflows, Rox runs continuous decision loops powered by real-time context from across the enterprise.

Agents analyze signals, reason about them, and take action - automatically.

To make that possible, we are building infrastructure that combines elements of:

  • Distributed data platforms

  • Real-time decision systems

  • Agent execution frameworks

  • Low-latency context retrieval

  • Platform tooling and developer infrastructure

We’re backed by Sequoia, GV, and General Catalyst and building a small team of engineers who want to work on hard technical systems problems with real-world impact.

About the Foundations Team

The Foundations team builds the platform and infrastructure powering Rox agents.

We own the systems responsible for:

  • Real-time context ingestion

  • Agent execution and orchestration

  • Reliability for long-horizon AI tasks

  • Developer infrastructure and platform tooling

  • Observability and operational excellence

  • Low-latency decisioning across distributed systems

If you’ve worked on systems like:

  • Internal developer platforms

  • Cloud infrastructure and platform tooling

  • Streaming compute platforms

  • Distributed query engines

  • Real-time data systems

  • Scalable backend infrastructure

many of the problems here will feel familiar - but applied to a new category of AI-native software.

At Rox, agents are constantly:

  • Retrieving context

  • Making decisions

  • Triggering actions

  • Updating state

The Foundations team builds the infrastructure and platform capabilities that make those loops reliable, observable, scalable, and easy for product teams to build on.

The Role

We are hiring a Platform Engineer to help design, build, and operate the infrastructure and internal platform behind Rox’s agent runtime.

This role sits at the intersection of:

  • Platform engineering

  • Cloud infrastructure

  • Distributed systems

  • Real-time data infrastructure

  • Agent orchestration

  • Developer productivity

You will work across both foundational infrastructure and the developer platform experience - helping teams ship quickly while ensuring systems remain reliable, scalable, and observable in production.

This is a strong fit for engineers who enjoy owning systems end-to-end: from infrastructure primitives and runtime reliability to deployment workflows, tooling, and operational excellence.

What You’ll Do

  • Design and build core infrastructure powering Rox agents.

  • Improve the reliability, scalability, and observability of distributed systems.

  • Build and maintain cloud infrastructure, deployment systems, and platform tooling.

  • Develop systems for real-time context ingestion and low-latency retrieval.

  • Support execution frameworks for long-running agent workflows.

  • Improve developer experience through automation, tooling, and self-service infrastructure.

  • Partner closely with product engineers and forward deployed engineers to enable rapid iteration in production environments.

  • Help establish engineering standards around monitoring, incident response, performance, and operational maturity.

  • Ship production systems quickly and evolve them based on real-world usage.

What You’ll Bring

  • Experience building and operating production infrastructure and backend systems.

  • Strong experience in cloud infrastructure, platform engineering, or distributed backend systems.

  • Familiarity with areas such as:

    • Kubernetes and container orchestration

    • Cloud infrastructure (AWS/GCP)

    • CI/CD and developer platforms

    • Distributed systems and event-driven architectures

    • Observability and reliability engineering

    • Real-time data or streaming systems

  • Strong intuition for reliability, scalability, latency, and operational tradeoffs.

  • Comfort debugging production systems and solving problems across infrastructure and application layers.

  • A bias toward shipping, learning from production, and continuously improving systems.

  • Ability to work across both platform and infrastructure domains depending on company priorities.

  • Why This Role

    Rox is building a new category of software where AI agents continuously reason, decide, and act in production environments.

    That requires infrastructure and platform systems that look different from traditional SaaS architectures.

    You’ll help build the foundation that enables engineers - and eventually agents themselves - to operate reliably at scale.

    As published by Rox. Applications are handled on their site.

    Skills this posting mentions

    Artificial IntelligenceDeveloper ExperienceEnterprise Software

    About Rox

    Rox helps businesses secure and grow revenue.

    All 21 openings at Rox

    One click, then it is written

    Apply to Rox with a resume written for this role.

    Queue Foundations Engineer (Platform Hybrid, SF in office) and I read the posting, rewrite your resume against it, draft the cover letter, and score the fit. Then you press send, or press one button and I fill in Rox’s form for you.

    1. 01Drop your resume

      A PDF or a LinkedIn URL. About a minute, once.

    2. 02I rank the openings

      Every weekday morning, the live catalog scored against your history. Up to 20 worth your time, not two hundred links.

    3. 03Each one is written up

      Resume rewritten for the posting, a cover letter, a fit score. Press send, or let me fill in the form.

    • 25 sent a week, free
    • No card
    • Nothing sent until you say so

    More roles at Rox

    See all

    Similar roles elsewhere

    See more

    Put this to work

    Paste your career in once. Every application after that is written for you.

    Drop a resume or a LinkedIn URL. I rank the live openings against it, rewrite the resume and write a cover letter for the best of them, and fill in the employer's form when you press the button. You read, you decide what goes out.

    1. 01Drop your resume

      A PDF or a LinkedIn URL. About a minute, once.

    2. 02I rank the openings

      Every weekday morning, the live catalog scored against your history. Up to 20 worth your time, not two hundred links.

    3. 03Each one is written up

      Resume rewritten for the posting, a cover letter, a fit score. Press send, or let me fill in the form.

    • New matches ranked and written before you are up.
    • Every bullet stays inside what your history supports. Nothing invented.
    • Queued, submitted, interviewing, offer: one screen, not a spreadsheet.

    500 free credits on sign-up. No card. Nothing is sent until you say so.

    Listed from the job board Rox publishes. Refolk is not the employer and does not handle their hiring. Applications go to Rox directly.