Level

Cognition

Software Engineer, Infrastructure

Cognition is hiring a Software Engineer, Infrastructure in San Francisco, United States. It pays $260k-$300k a year and Level rates it ; you can apply on Cognition.

Level's read on this job

  • Level rates this software engineer role Works on AI ●●●○: the daily work is on AI products, without building the model.
  • Pay on this posting starts 55% higher than the typical software engineer posting on Level.
  • The posting mentions Cursor, Windsurf and Devin among its tools and skills.
  • Cognition has 104 other open roles on Level.

AI in this role

cursorwindsurfdevin

We are an applied AI lab building end-to-end software agents.

We're the makers of Devin, the first AI software engineer.

Our team is extremely talent-dense. Among our founding team, we have world-class competitive programmers, former founders, and leaders from companies at the cutting edge of AI including Scale AI, Palantir, Cursor, Waymo, Tesla, Lunchclub, Modal, Google DeepMind, and Nuro.

Building Devin is just the first step—our hardest challenges still lie ahead. If you’re excited to solve some of the world’s biggest problems and build AI that can reason on real-world tasks, apply to join us.

Who We Are

Cognition is an applied AI lab building end-to-end software agents. We are behind Devin, the first AI software engineer, and Windsurf, an AI-native IDE. Our vision is AI that works alongside engineers as a genuine teammate, not a tool.

We are a small, talent-dense team of competitive programmers, former founders, and researchers from Scale AI, Palantir, Cursor, Google DeepMind, and others.

Role Mission

Infrastructure Engineers at Cognition build the systems that everything else runs on. Devin executes long-horizon tasks across sandboxed environments, spawns subagents, uses tools, and does all of this at scale across millions of sessions. Windsurf serves developers in real time with low-latency editor intelligence and agent-in-the-loop workflows. None of that works without world-class infrastructure underneath it. You will own the compute, orchestration, networking, and platform systems that make both products possible, and you will build them with the same engineering rigor and product instinct that the rest of the team brings to everything else. This is a role for engineers who care deeply about reliability, scale, and the craft of building systems that other engineers love to build on top of.

What You'll Accomplish

  • Own agent execution infrastructure: Design and operate the sandboxed compute environments that power Devin's task execution, including VM orchestration, container management, resource scheduling, and isolation at scale.

  • Build and maintain the developer platform: Create the internal infrastructure that Cognition engineers depend on every day: CI/CD pipelines, deployment systems, developer tooling, and the abstractions that let product teams ship fast.

  • Drive reliability and observability: Define SLOs, build monitoring and alerting systems, lead incident response, and close the loop on postmortems so the same failure never happens twice.

  • Scale with the product: Anticipate capacity and architecture needs before they become bottlenecks; make deliberate infrastructure investments that stay ahead of product growth.

  • Partner across engineering: Work closely with product engineers and researchers to understand what the systems they are building require, and design infrastructure that meets those needs without creating unnecessary complexity.

Exceptional Candidates Have Demonstrated

  • Deep systems engineering: Experience designing and operating large-scale distributed infrastructure; strong opinions about reliability, failure modes, and operational excellence.

  • Cloud and container expertise: Hands-on proficiency with Kubernetes, cloud platforms (AWS, GCP, or Azure), and infrastructure-as-code tools like Terraform.

  • Strong software engineering fundamentals: Infrastructure at Cognition means writing real code; proficiency in Python and comfort owning complex systems codebases.

  • Observability instincts: Knows how to instrument systems, build meaningful dashboards, and design alerts that surface signal without noise.

  • Security and isolation mindset: Experience with sandboxing, network isolation, and secure multi-tenant compute, particularly relevant for agentic workloads running arbitrary code.

  • Relevant industry experience: Prior experience at a frontier AI lab, applied AI company, or developer tools company; you know what good looks like in this category.

  • Degree from a top-tier university: BS, MS, or equivalent in Computer Science, Mathematics, Engineering, or a related technical discipline from a highly selective program.

Compensation & Benefits

  • Base Salary: $260,000 - $300,000 + significant early-stage equity

  • Medical, Dental, Vision: Fully paid for you and your dependents

  • 401(k): Company match included

Perks: Private chef, cozy slippers, endless snacks, and more

Our Commitment

Equal Opportunity. Cognition is an equal opportunity employer. We do not discriminate on the basis of any protected characteristic under applicable law. We are committed to providing reasonable accommodations for candidates with disabilities throughout the hiring process - please let us know if you need any. Cognition also considers applicants with criminal histories consistent with the SF Fair Chance Ordinance and similar local laws.

Data Privacy and Arbitration: By submitting your application, you agree to our Global Applicant and Job Candidate Privacy Notice. For US applicants, by submitting your application, you agree to the Applicant Arbitration Agreement.

How we rate this

Software Engineer, Infrastructure at Cognition rates 67 out of 100 for how much of the daily work is AI. That makes it Works on AI (AI Level 3 of 4). The level is about AI in the job, not seniority.

Classification

Works on AI. The daily work is on AI products, without building the model.

  1. ●●●● Builds AI80 to 100
  2. ●●●○ Works on AI60 to 79
  3. ●●○○ Uses AI40 to 59
  4. ●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

CursorWindsurfDevin

Also common in software engineer jobs at this level

Pay

This job starts at
$260k
Typical software engineer job
$168k

This posting starts 55% above the typical software engineer job. See software engineer jobs

Questions you could be asked

  1. What's a project where you used Cursor hands-on?
  2. Walk me through how you've used Windsurf in your day-to-day work.
  3. What are the limits of Devin that you've run into, and how did you work around them?
  4. Describe a typical day in a role like this one: which parts run through AI directly?
  5. If you removed AI from this role, what would be left, and how do you decide what still needs a human?

Adapt your resume

  • List these exact terms on your resume: Cursor, Windsurf, and Devin. An applicant tracking system matches the wording, not the idea.
  • Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
  • Show where AI is part of your daily process, not a one-off project. This role expects it to be a running habit.

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