Full-Stack Developer

About this role

About the Role

We're hiring a Fullstack Developer to build and extend the web application our customers rely on to manage their security posture. This is primarily a Python backend role: roughly 80% of your time will be spent designing, building, and maintaining the REST API that powers the product, with the remaining 20% on React frontend work.

The product is a security operations platform that connects our customers with our security service team. Through it, both sides collaborate to triage events, track remediation, and maintain visibility into active threats. The work is consequential. When the API is slow, unreliable, or returns bad data, response times to real security incidents suffer.

We need someone who thinks API-first but can cross into the frontend when needed, whether that's fixing a React component, building a new UI for a feature they've just shipped the backend for, or debugging an issue that spans the stack.

What You'll Do

• Design, build, and maintain Python REST API endpoints. This is the core of the role. You'll own data models, query performance, authentication, error handling, and API contracts.
• Write and maintain database queries, manage migrations, and ensure data integrity across the platform.
• Build backend services that support security event ingestion, processing, and delivery to customers.
• Write tests at multiple levels: unit tests for business logic, API integration tests, and targeted E2E coverage for critical workflows.
• Work in the React frontend (~20% of time), building UI for features you've built the backend for, fixing bugs, and ensuring the frontend consumes your APIs correctly.
• Participate in code review with an emphasis on clarity, correctness, and maintainability.
• Contribute to architectural decisions around API versioning strategy, data modeling, service boundaries, and caching.
• Improve developer experience: build tooling, CI pipeline, local dev setup, documentation.

What We're Looking For
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