Founding Software Engineer

Stack

Responsibilities

• ▹Develop and maintain software across backend systems, infrastructure and user-facing product surfaces
• ▹Own technical work end-to-end: architecture, implementation, testing, deployment, monitoring and iteration
• ▹Build reliable systems for persistent AI-agent sessions, cloud computers, terminals, files, applications and realtime communication
• ▹Work with TypeScript services, Linux environments, PostgreSQL, APIs, realtime protocols and modern web technologies
• ▹Investigate and resolve technical and operational problems
• ▹Improve system security, reliability, performance, observability and maintainability
• ▹Work closely with users and the founding team to turn product needs into durable technical solutions
• ▹Contribute to technical direction, engineering practices and product decisions

Requirements

• ▹Demonstrated experience building and shipping substantial software products or systems
• ▹Strong software engineering fundamentals: APIs, data modelling, testing, debugging, system design
• ▹Strong TypeScript skills, comfortable with Linux and PostgreSQL
• ▹Ability to work across backend infrastructure and user-facing product code
• ▹Good judgment around security, reliability, permissions and data protection
• ▹High ownership, able to take work from an initial problem through to production
• ▹Clear written and spoken English
• ▹Ability to work with substantial overlap with European working hours

Nice to have

• ▹Experience with AI-agent runtimes, cloud infrastructure, terminals, realtime systems, developer tools, React, Electron or mobile applications

Soft skills

What we offer

• ▹Flexibility to work remotely within Sweden

About the company

Finna is building a personal cloud computer (Matrix) for the AI-agent era: a persistent environment where people can run coding agents, tools and long-running work without tying everything to one laptop.