Platform Software Engineer

📋 Job Overview

Platform SWE
Pi.Security · San Francisco, CA · Full-time · Onsite, 5 days a week

About Pi.Security
Pi is building an agentic product security platform for teams that need to secure software at the speed they build it. Modern development is accelerating, but security knowledge is still scattered across code, tickets, documents, incidents, reviews, and the people who remember why decisions were made. Pi turns that context into institutional security memory, helping teams triage faster, remediate in context, prevent repeat vulnerability classes, and embed security guardrails where engineering work already happens. We are building for a future where security is not a blocker at the end of the development process. It is part of how software gets designed, reviewed, shipped, and improved.

Pi was recognized on Fast Company's 2026 Next Big Things in Tech list and covered by Forbes!

🏢 About Pi.Security

Pi was recognized on Fast Company's 2026 Next Big Things in Tech list and covered by Forbes! We are building an agentic product security platform for teams that need to secure software at the speed they build it. Modern development is accelerating, but security knowledge is still scattered across code, tickets, documents, incidents, reviews, and the people who remember why decisions were made. Pi turns that context into institutional security memory, helping teams triage faster, remediate in context, prevent repeat vulnerability classes, and embed security guardrails where engineering work already happens. We are building for a future where security is not a blocker at the end of the development process. It is part of how software gets designed, reviewed, shipped, and improved.

🎯 The Role

We are seeking an experienced Software Engineer to design, develop, and scale the core platform powering Pi's products. This role involves building shared services, frameworks, and abstractions that enable our engineering team to develop reliable software quickly. Join us to build the foundation of an AI-native cybersecurity platform! This role is based in our San Francisco office, five days a week. We build in person, alongside the founding team, and that is a deliberate choice.

✅ Key Responsibilities

• Design, build, and maintain scalable backend systems, shared services, and internal APIs.
• Develop common frameworks and abstractions for authentication, authorization, multi-tenancy, asynchronous jobs, and service communication.
• Improve the architecture, reliability, performance, and maintainability of our core systems.
• Collaborate with product, AI, and infrastructure engineers to identify and solve shared engineering challenges.

📌 Required Qualifications

• 5+ years of software engineering experience, including building and operating production backend systems.
• Strong experience with distributed systems, API design, databases, asynchronous processing, and service-oriented architecture.
• Demonstrated experience designing shared services, libraries, or frameworks adopted by multiple engineering teams.
• Strong programming skills in TypeScript, Python, Go, or similar backend languages.
• Ownership, autonomy, and good judgment in a fast-moving startup.
• Willingness to work onsite in San Francisco five days a week

⭐ Desirable Experience

• A history of delivering complex SaaS projects while working in high-growth startups.
• A passion for clean, maintainable code, thoughtful software design, and sound engineering practices.
• Experience with security-sensitive systems, including authorization, tenant isolation, and data exposure.
• Experience building internal developer platforms, SDKs, or developer tooling.
• Experience with AI infrastructure, agent execution, or workflow orchestration.

🎁 Benefits

Meaningful equity in Pi.Security
Medical, dental, and vision coverage for you and your family, starting the 1st of the month after you join.
Flexible Spending Accounts (FSAs) for health and dependent care
Commuter benefits
Unlimited PTO
401(k)
$100/month health and wellness stipend
$30/day lunch allowance on in-office days

🛂 Visa & Eligibility

Pi.Security is an equal opportunity employer. We welcome applicants of all backgrounds and are committed to building a diverse and inclusive team. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.