Backend Engineer (all genders) - koppla GmbH

About the Company

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.

Compensation

€65k-90k + 25% of your base salary in equity.

Location

Berlin (Hybrid, 2+ days/week in office); open for candidates willing to relocate to Berlin.

Tech Stack

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

Responsibilities

• 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.

Qualifications

• 3‑5 years of full‑stack engineering experience, with a strong foundation in clean and efficient code.
• Flexible to switch between front‑end and back‑end work, balancing tasks approximately 50/50 or 80/20 as needed.
• Ability to balance technical trade‑offs and contribute to discussions about scalability, performance and maintainability.
• Strong focus on building reliable, high‑quality systems that deliver a great user experience.
• Thrives in a fast‑paced startup environment, enjoys taking ownership of tasks, and remains proactive and pragmatic in solving challenges.

Benefits

• Tax‑optimized equity grants and ownership culture.
• Transparency, respect, ownership and collaboration focus.
• 28 days PTO, flexible working hours, workation, hybrid setup.
• Dog‑friendly office in Berlin with free lunch, beverages, snacks and a home‑office budget.
• Annual personal training budget of €1,500; company‑supported pension scheme (“BAV”, 30% contribution); Urban Sports Club membership and additional benefits.