Senior Software Engineer, Core Infrastructure

Imgix•San Francisco, CA

5d•$150,000 - $190,000•Remote

About The Position

Imgix is a chief platform for real-time visual media management, optimization, and delivery services. Our innovative technology empowers businesses to deliver high-quality visual experiences to their customers across platforms and devices, anywhere in the world. Imgix processes billions of image and video requests per day. Behind that is production software — and we need someone who's great at writing it. We're hiring a Senior Software Engineer for our Core Infrastructure team. You'll write and ship production Python that powers our visual media rendering pipeline, caching layer, and delivery infrastructure. You'll own what you build: deploying it, monitoring it, debugging it when things go sideways, and improving it before they do. This isn't a pure ops role. You'll spend most of your time writing code — but the code you write runs real systems at serious scale, so you'll need to think about failure modes, cost, and operational reality as you design. When things do break, we don't just remediate and move on — we dig into root cause and fix things so they don't recur. If you're a strong software engineer who wants to build things right and own them in production, this is the role.

Requirements

Strong Python developer. You write clean, maintainable production code — not scripts on the side of an ops role.
Cloud infrastructure experience. 5+ years working with a major cloud provider (GCP strongly preferred; AWS/Azure also considered), including multi-region deployments.
Infrastructure-as-code fluency. Terraform or OpenTofu experience. You define infrastructure in code and deploy it through CI/CD.
Linux fundamentals. Comfortable in the operating system your services run on.
Operational ownership mindset. You've been on-call, you've triaged production incidents by reading logs and metrics rather than following a script, and you've dug into root cause on your own.
Clear communicator. We're a fully remote team. Strong async written communication matters as much as technical skill.

Nice To Haves

Experience with CDNs, caching infrastructure, or visual media pipelines.
Familiarity with compliance frameworks such as GDPR and SOC 2.

Responsibilities

Write and maintain production Python services that handle billions of daily requests, including our core rendering and delivery infrastructure.
Design systems with failure modes, cost, and performance in mind — then own them through deployment and beyond.
Build infrastructure tooling and automation (Terraform, CI/CD, Docker) that makes the whole team faster.
Collaborate across engineering on cloud cost optimization, balancing reliability and performance with real budget constraints.
Contribute to maintaining 99.99%+ uptime through monitoring, incident response, and on-call rotation.
Create clear documentation - operational references, design docs, alert guides - so the systems you build are understandable by the whole team.