As a Platform Engineer, you help build the architectural foundation that allows Pit to scale from hundreds to thousands and eventually millions of systems.

Your work ensures that systems built on the Pit platform remain consistent, reliable, and easy to evolve over time. The platform is the foundation that allows AI-driven development and large-scale system delivery to work in practice.

Responsibilities

You are expected to be comfortable working in at least two of the following areas, and willing to collaborate across all four when designing platform capabilities:

• Frontend: shared UI patterns, templates & design systems, client architecture
• Backend: system architecture, APIs, data models, reusable integrations
• Cloud: infrastructure, deployment systems, runtime environments, observability
• Tooling: monorepo and customer repository tooling, tests and evals setups, workflow environment, developer CLI

Your work would contribute to:

• designing and evolving the platform architecture
• building and maintaining shared frameworks and internal packages
• improving infrastructure, deployment, and system lifecycle tooling
• ensuring consistency across customer systems
• minimizing introduced complexity relative to value created
• enabling safe migrations and large-scale platform improvements
• maintaining thousands of customer applications

What success looks like

• Systems built on the platform remain predictable and maintainable
• Platform improvements can be rolled out safely across many systems
• Engineers can build new systems quickly without reinventing core components

Tech stack

We build with TypeScript end-to-end in several pnpm monorepos, prioritizing type safety, developer experience, and clean architecture.

• Frontend: React 19, React Router 7, Vite, Tailwind CSS v4, shadcn/Radix UI, TanStack React Query, Zustand, React Hook Form, Zod
• Backend: Node.js, Hono, tRPC, Drizzle ORM, PostgreSQL
• Coding agents: Currently Claude Code and Codex
• LLMs: Multi-provider support (Anthropic, Cerebras, Gemini, Mistral, OpenAI)
• Infrastructure: Currently Google Cloud Platform (Cloud Run, Cloud SQL, Cloud Storage, Secret Manager), Pulumi (IaC), Docker, GitHub Actions. We will add support for all major clouds
• Testing: Vitest, Testing Library, Playwright
• Tooling: pnpm workspaces, Biome (lint/format), custom CLI for dev workflows, architecture validation system with auto-generated documentation

Qualifications

Required (all candidates)

• 8+ years of professional software engineering experience spent building production systems, of which 3+ years in TypeScript/Node.js
• Experience designing and maintaining shared abstractions, frameworks, or internal packages used by other engineers
• Track record of working in codebases at scale where consistency, maintainability, and migration safety matter
• Experience working with coding agents (Claude Code, Codex, Cursor) as part of your development workflow
• Clear, direct communication style. You write well and explain technical decisions to non-technical stakeholders
• Authorised to work in Sweden

Area-specific requirements — at least two required

Frontend

• Deep experience with React and component architecture
• Strong understanding of when to use local state, context or external state management
• Fluent across the spectrum of tests (unit, integration, e2e)
• At least one of: experience with design systems OR highly proficient with animations and micro-interactions OR track record of shipping a wide variety of frontend applications

Backend

• Strong experience designing APIs, data models, and system architecture with PostgreSQL or similar relational databases
• Proficient in SQL and comfortable reviewing and writing database migrations
• Experience designing for failure: retries, idempotency, dead-letter queues, and knowing when it is safe to retry and when it is not
• Track record of building reusable integrations or service abstractions

Cloud

• Hands-on experience with cloud infrastructure (GCP, AWS, or Azure), containerized deployments, and infrastructure as code
• Track record of building deployment pipelines, observability, and runtime environments

Tooling

• Experience building developer tooling, CLIs, or monorepo infrastructure
• Track record of improving developer workflows, test infrastructure, or build systems

Preferred

• Experience maintaining or migrating large numbers of applications or services simultaneously
• Experience building integrations with external systems (ERPs, data warehouses, third-party APIs) including keeping local data copies in sync via bulk imports and async event processing
• Background in platform teams where your work directly multiplied the productivity of other engineers
• Familiarity with our specific stack (React 19, Hono, tRPC, Drizzle, PostgreSQL, Pulumi, Vitest, Playwright)
• Experience in enterprise or B2B environments where security, compliance, and auditability matter

Not a fit if

• You prefer working on a single product rather than building foundations that others build on
• You have not worked in a codebase where architectural discipline and consistency were critical
• You are intimidated by the idea of maintaining thousands of systems. That is what we are building towards.

About Pit

Where intent becomes reliable systems.

Our vision is a world where the friction between an idea and a production-ready system is zero. Our mission is to help companies run their operations on custom software they can trust.

Our principles

1. Start with the customer. Everything we build serves someone. We stay close to real users and workflows to understand their constraints and outcomes, testing against reality rather than our own taste. The customer is not a stakeholder to satisfy. They are the reason we exist.

2. Think like an owner. We take extreme ownership of our work and our mistakes. We flag problems early, make a plan, and focus on the solution. Silence is not neutrality; it is a choice that lets problems compound.

3. Set the standard. Quality compounds, but so does mediocrity. We hold exceptionally high standards in our product, code, design, and hiring. We will take shortcuts, but conscious ones.

4. Build lego blocks, not artworks. Everything we ship should compound. Every decision we document should make the company smarter.

5. Win together. No one carries the weight alone. Act with good intent. Assume your colleagues are trying their best.

6. Empower people with technology. Every solution we ship should make organizations and the people in them more capable, not just more efficient.