Software Engineer - Backend
- Salary
- $100,000 - $300,000 annually
- Level
- Senior
- Work type
- Hybrid · San Francisco
Not stated in the posting: visa.
Open. First seen 2 October 2026.
About the role
Cogent Security's standard text
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.
Since coming out of stealth, Cogent has experienced rapid growth. We partner with Fortune 500 companies to secure some of the most complex production environments in the world.
We’re backed by Greylock 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
About the Role
As we work with our first design partners, Cogent is building a suite of backend services and integrations that will power our autonomous AI workers. We are looking for talented, ambitious Backend Senior and Staff Engineers who are excited to build in the Applied AI space.
What You’ll Do & Achieve
- Design and implement key backend, integration platform subsystems
- Understand business goals, product and technology strategies and customer requirements and implement supporting backend and integration platform subsystems to achieve them
- Adapt and evolve systems and plans to implement newly identified design partner and customer requirements
- Adapt and evolve systems to implement non-functional requirements (compliance, security, enterprise integration etc.)
- Laying down infrastructure foundations for growth and scalability
- Prepare Cogent for future headcount, customer, and data growth by working with a team to design and build an infrastructure that will scale and that achieves requirements in the areas of product capabilities, non-functional needs (reliability, security, disaster recovery, etc.).
- Help create a robust engineering culture at Cogent
- Onboard, support and uplevel future team members
- Participate in, provide feedback on, and iterate interview process as we scale the team up
- Actively contribute to Engineering Excellence, Operational Excellence and Recruiting initiatives
What You’ll Bring
- 5+ years of professional experience as a hands-on engineer and technical leader, overseeing and contributing to multiple backend systems and infrastructure projects
- Expertise in architecting, developing, and scaling backend systems, including both stateless and stateful architectures, to support high-performance, enterprise-level applications
- Proven experience with distributed systems, microservices, and serverless architectures, ensuring robustness, scalability, and fault tolerance
- Strong knowledge of backend programming languages such as Python, Go or similar, with a deep understanding of concurrency, memory management, and performance optimization
- Experience with API design and implementation (RESTful and/or gRPC), integrating with frontend systems, data platforms, and third-party services
- Solid experience with containerization, orchestration, and deployment technologies like Kubernetes, Docker, Terraform, and CI/CD pipelines in multi-cloud environments (AWS, GCP, Azure)
For California Based Applicants
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.
Cogent Security's standard text
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.
What this role asks for
Particular to this role
Azure · Docker · GCP · Microservices · REST · Serverless · gRPC
Rare in Cogent Security's other 17 open postings.
Standard for backend roles
AWS · Kubernetes · Python
Common in backend postings at any company.
In most of Cogent Security's ads
Cybersecurity · Databricks
Named in most of its open postings, whatever the role.
64% of this description is written for the role. The rest is Cogent Security's standard text, folded away below.
Read against Cogent Security's other open postings on this site.
The team: Engineering
This role is one of 15 open in Engineering.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Cybersecurity (15 of 15), Databricks (15 of 15), Python (6 of 15), Terraform (6 of 15), TypeScript (5 of 15), AWS (4 of 15), CI/CD (4 of 15)
OTHER ROLES ON THIS TEAM
- Founding IT Engineer posted Sep 15
- Software Engineer - Storage Infrastructure (Senior+) posted Sep 14
- Software Engineer - Developer Experience posted Sep 14
- Software Engineer - Infrastructure (Senior+) posted Sep 14
- Software Engineer - Data Platform (Staff+) posted Sep 14
- Software Engineer - Fullstack posted Sep 14
- Software Engineer - Applied AI posted Sep 14
- Forward Deployed Agent Engineer, Early Career posted Sep 14
- Forward Deployed Agent Engineer posted Sep 14
- Security Engineer - Application Security (Senior) posted Sep 1
- Software Engineer - Frontend (Staff+) posted Aug 14
- AI Research Scientist posted Aug 3
- AI Research Engineer posted Aug 3
- Cogent AI Fellowship posted May 5
From the team and dates on Cogent Security's own job board.
Salary context
12 other open postings titled Software Engineer - Backend state a salary: median USD 151,500 to USD 225,000 a year.
See Software Engineer salaries in San Francisco →
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