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About the Role

We are looking for a Backend Software Engineer to build core product features across Pi’s agentic security platform. You will work on APIs, agentic workflows, business logic, data models, integrations, and backend systems that power security analysis, remediation workflows, code intelligence, and customer-facing product behavior. This is an application engineering role focused on designing product behavior, implementing backend systems, shaping data flows, and making complex workflows reliable, observable, and understandable.

Responsibilities

Build product features across our backend application stack.
Design and implement APIs using modern TypeScript and Python backend frameworks.
Build business logic for findings, integrations, security workflows, reporting, user actions, and analysis pipelines.
Implement async and agentic workflows using durable workflow systems and worker services.
Work with AI-assisted systems that analyze code, cloud resources, pull requests, security findings, and customer context.
Model and query application data using relational databases, vector search, ORMs, and migration tooling.
Integrate with external systems such as source control, ticketing, collaboration, documentation, cloud, and security platforms.
Build backend workflows that inspect customer codebases and infrastructure context safely and reliably.
Build reliable background jobs, retries, state transitions, audit trails, and operational visibility.
Partner with frontend, platform, security, and product teams to ship complete customer-facing workflows.
Help create backend systems that let customers move faster without losing security context, control, or trust.

Requirements

Strong backend application engineering experience.
Experience building production APIs and business logic in TypeScript and/or Python.
Strong product judgment: ability to translate ambiguous product needs into clear backend models, APIs, and workflows.
Experience with relational databases, schema design, migrations, query performance, and data consistency.
Comfort working with async systems, background workers, queues, workflow engines, or distributed jobs.
Ability to debug complex behavior across API, worker, database, and third-party integration boundaries.
Strong security instincts around authorization, tenant isolation, secret handling, input validation, and data exposure.
Clear communication and good engineering taste around abstractions, ownership boundaries, and maintainability.
Ability to work in a fast-moving startup environment with ownership, autonomy, and good judgment.

Skills

TypeScript
Python
Next.js
tRPC
FastAPI
Workflow orchestration systems
PostgreSQL
Drizzle
Redis
Bun
Docker
AI-agent product workflows
LLM-backed product workflows
Durable workflow engines
Security products
Developer tools
Code analysis
Cloud security
Infrastructure security
Multi-tenant SaaS systems
APIs consumed by rich frontend applications
Monorepo development
Systems processing code
Systems processing security findings
Systems processing infrastructure metadata
Systems processing customer-specific context

About the Company

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.
Read about Pi Security on Forbes!