(Senior) Software Engineer

About us

We're an early-stage post-seed startup building the software platform powering the next generation of telecommunications. Our small engineering team consists of ambitious, experienced software engineers, who have built and scaled mission-critical systems at companies including Adyen, Miro, and Microsoft.

The role

As a (Senior) Backend Engineer, you'll design, build and maintain the systems that power the platform. You'll tackle challenging backend and infrastructure problems involving global connectivity, distributed systems, real-time provisioning, and billing, building reliable systems designed to serve millions of users worldwide.You'll

You'll own projects from technical design through production, collaborating closely with the founders and the rest of the engineering team. You'll have significant influence over our architecture, engineering practices, and the way we build software.

How we work

• We are obsessed with developer experience (think fast local setup, automated testing, reliable CI/CD, and frictionless deployments).

• Pragmatic technical discussions. The best idea wins, regardless of who proposes it.

• Few meetings, minimal process.

• We value thoughtful engineering over chasing the latest trends.

What we're looking for

• You prefer working with other ambitious people in our office located near Amsterdam Central station. Of course, we are flexible if you prefer to work from home once a week to focus.

• Comfortable working independently in a fast-moving environment with few predefined processes.

• A strong track record of building, shipping, and operating production backend systems.

• A bachelor’s degree in Computer Science or equivalent experience.

• Experience building and operating production software at scale.

• Strong experience with a statically typed language such as TypeScript, Go, Rust, Java, or Kotlin.

• Solid understanding of relational databases, preferably PostgreSQL

• Experience working with (private) cloud infrastructure.

Strong engineering fundamentals, with an emphasis on testing, clean architecture, and maintainable code.
Above all, we value ambition, curiosity, and a willingness to learn and grow. We care more about your mindset and what you're capable of becoming than whether you tick every box above.

Nice to have

• A master’s degree in Computer Science or equivalent experience.

• Experience with serverless architectures or cloud functions.

• Experience designing distributed systems or event-driven architectures.

• Experience in telecom, networking, or infrastructure products.

What we offer

• Working with experienced engineers who care deeply about building great software.

• Meaningful influence on both product and technical direction.

• Minimal bureaucracy, we optimize for shipping, not meetings, OKRs, sprint ceremonies, etc.

• The opportunity to help shape a platform from an early stage.

• Competitive compensation and meaningful equity.

How to apply

No AI-generated motivation letter needed. We'd much rather see your GitHub profile or hear about a couple of substantial software projects you've built, the role you played, and an interesting technical challenge you solved (we understand if most of the code you wrote is in internal repositories).

Please apply personally by emailing jobs@firsty.app, rather than through an automated AI agent. We're interested in hearing from you, not a generated application. We're a small team, so apologies in advance if we can't get back to everyone individually.