Backend Engineer (all genders)

In a nutshell

koppla is building the next-gen collaborative scheduling platform for construction, helping project managers keep projects on time by identifying delays and disruptions before they impact timelines.
We are looking for a product-minded Backend Product Engineer in Berlin that loves building actual products while taking ownership of the entire feature-building process. You will be mostly working on our TypeScript codebases (FE + BE). This is a unique opportunity for end-to-end ownership across the entire stack.

Compensation: €65k-90k + 25% of your base salary in equity on top
Location: Berlin (Hybrid, 2+ days/week in office); open for candidates willing to relocate to Berlin
About koppla

At koppla, we're a fun and ambitious team on a mission to help the construction industry build more efficiently. We're already partnering with top construction companies and delivering impressive results for our customers (multi-months speed-ups discovered through koppla).

Our ambitions are backed by leading VCs (Earlybird, Newion) and industry angels as we tackle a billion-dollar opportunity problem in an underdigitized and underserved market.

Our culture is core to who we are and we've built one we're genuinely proud of. We aspire to create an environment of few but very high-performing team members (similar to Netflix or Ashby ).

Our Tech Stack:

• Frontend: Typescript, Vue 3, Tailwind, Netlify, GH Actions
• Backend: Typescript, AWS, NestJS, Prisma, PostgreSQL, REST, Websockets, Terraform, GH Actions

What you'll be doing

• Collaborate closely with product managers, designers and engineers to design and implement new features in a truly cross-functional process .
• Build and maintain backend services and APIs (REST/GraphQL) as well as the user-facing parts (in Vue)
• Contribute to the overall architecture of the entire system
• Collaborate with and learn from senior engineers to implement best practices for software development, infrastructure, and deployment processes. Participate in code reviews and provide constructive feedback to peers while learning from more experienced engineers.

Who we're looking for

This role is perfect for a Fullstack Engineer with 3-5 years of experience looking to grow their skills and make a meaningful impact at a company that is approaching product-market fit (> €2M ARR). You are likely a great fit if:

• You have solid engineering fundamentals, write clean and efficient code, and are eager to continue elevating your skills.
• Flexible to switch between between FE and BE depending on the task - it could be 50/50 at times but also 80/20 if needed
• You understand how to balance technical trade-offs and can contribute to discussions about scalability, performance, and maintainability.
• You care about building reliable, high-quality systems that deliver a great experience for end users.
• You thrive in a fast-paced startup environment, enjoy taking ownership of your tasks, and stay proactive and pragmatic in solving challenges.

Beyond the role-specific requirements, you also see your own values reflected in our Culture Playbook .
What we offer

• A company of co-owners through tax-optimized equity grants .
• A culture with a focus on transparency, respect, ownership, collaboration and the well-being of each team member on this exciting journey.
• An environment that values hard-work while still allowing work-life/family integration through 28 days PTO, flexible working hours, workation and a hybrid setup.
• Dog-friendly office in Berlin with free lunch, besides beverages and snacks as well as a home office budget at start.
• And more: Annual personal training budget of 1,500€ (FTE), Company supported pension Scheme (”BAV”, 30% contribution), Urban Sports Club Membership, Home Office budget and more.