Software Engineer - Infrastructure (Senior+)
- Pay
- $100,000 – $300,000 per year
- Location
- San Francisco, CA (Remote) · On-site
- Job type
- Full-time
- Level
- Senior
- Experience
- 5+ years
- Listed
- 30 days ago
Skills & highlights for this role
- AWS
- ClickHouse
- Apache Spark
- PostgreSQL
Also useful
- Envoy
- Istio
- HashiCorp Vault
- SPIFFE/SPIRE
About the Role
We're hiring a Senior+ Infrastructure Engineer to help build a secure, reliable, cost-effective, and agent-forward foundation for running Cogent's products and services. You'll join a small, fast-growing Core Platform pod (that includes infrastructure, security, and compliance) and work hands-on across our data platform, our security systems, and the platform layer our agents use to build and ship the product. Ultimately you'll help keep the company, our customers, and our employees protected against external and internal threats.
This is an early-stage, high-ownership role for an engineer who has built core infrastructure at startup scale and can operate across many stakeholders.
What You'll Do
- Build and optimize our data platform, with a focus on storage-level optimizations across Clickhouse and Postgres
- Make our product deployable on-prem to unlock onboarding for large customers - the last mile needed to land seven-figure accounts
- Harden our security systems
- Build an agent-first infra and platform layer, since agents will build our product and need a foundation they can rely on
- Drive large-scale infrastructure projects end-to-end across a variety of stakeholders
About You
- 5-7 years of software engineering experience with deep core infrastructure expertise and strong hands-on coding
- Hands-on AWS experience
- Experience with Clickhouse Cloud at the serving layer
- Real depth in Spark and micro-batching
- A track record of driving large-scale projects across multiple stakeholders
- Experience building in an AI-forward capacity, with agentic coding fundamentals
- Startup or early-stage background (up to ~200 people), ideally blended with large-company experience
Bonus Points
- Prior startup founder experience
- API gateway auth experience with Envoy or Istio
- SRE strength: agent-forward, but able to operationalize, debug, and triage
- Familiarity with Hashicorp Vault, MicroVM (Runloop), and SPIFFE / SPIRE for agent identity
Pay and benefits
The standard base salary range for this position is $100,000 - $300,000 annually. Compensation offered will be determined by factors such as location, job level, job-related knowledge, skills, and experience. Certain roles may be eligible for variable compensation, equity, and benefits.
About Cogent
Cogent is an Applied AI Lab building the next generation of AI agents for cybersecurity. AI has fundamentally changed how attacks happen, allowing malicious actors to operate at unprecedented speed and scale. Cogent's "AI Taskforce" assesses petabytes of enterprise data to remediate these issues before critical breaches occur.
To stay at the cutting edge, we blend frontier research with real-world execution. Alongside our core product work, Cogent Research serves as our applied AI lab, providing the research horsepower needed to make truly agentic security workflows a reality. We partner with Fortune 500 companies to secure some of the most complex production environments in the world.
We're backed by Greylock & Bain Capital Ventures, and we've built a team with the best minds in applied AI. Our team is comprised of people from:
- Top universities like Stanford, Berkeley, Penn, Duke, Carnegie Mellon, Waterloo
- Unicorn, high-growth companies like Scale AI, Databricks, Stripe, Tesla, Coinbase
- World class cybersecurity experts from Wiz, Abnormal AI, Zscaler
- Preeminent research labs like Deepmind and SAIL
Equal opportunity and legal notices
We are committed to building an inclusive and diverse company. We do not discriminate based on gender, ethnicity, sexual orientation, religion, civil or family status, age, disability, or race.
From Cogent Security's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.
How Rolev.ai helps with this application
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Common questions
What is the salary for the Software Engineer - Infrastructure (Senior+) role at Cogent Security?
The Software Engineer - Infrastructure (Senior+) posting at Cogent Security states compensation of $100,000 – $300,000 per year. It is listed as a full-time position. Final pay may depend on location, experience, and interview evaluation on Cogent Security's official career site.
Where is the Software Engineer - Infrastructure (Senior+) job at Cogent Security located?
Yes, this Software Engineer - Infrastructure (Senior+) opening at Cogent Security is listed as San Francisco, CA (Remote) (On-site). Always check Cogent Security's application page for specific state eligibility or relocation policies.
What qualifications are required for Software Engineer - Infrastructure (Senior+) at Cogent Security?
For the Software Engineer - Infrastructure (Senior+) role, Cogent Security highlights 5+ years of relevant experience; experience with AWS, ClickHouse, Apache Spark, PostgreSQL. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.
How do I apply for the Software Engineer - Infrastructure (Senior+) position at Cogent Security?
This listing links directly to Cogent Security's Ashby application page. You can apply directly on Cogent Security's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.