Senior Backend Developer (m/f/d)

Your mission

As a Senior Engineer, you will own the end-to-end delivery of key features within our ocean data platform. You will sit at the center of an interdisciplinary squad, translating product requirements into technical reality. Your focus is consistent progress, high-quality execution, and the ability to navigate the full stack to ensure that what we build works seamlessly - from the data ingest layer to the user-facing interface.

• Own features end to end. Take a feature from rough requirements through design, implementation, and deployment, and keep performance and security in view along the way.
• Work across disciplines. Sit with product managers, designers, and other engineers to break larger problems into shippable steps. You'll be a strong technical voice in the squad and help keep things moving - this is a senior engineering role, not a people-management one.
• Move across the stack. Whether it's a data pipeline in the backend or a responsive UI, you go where the feature needs you rather than staying in one silo.
• Use AI tooling where it helps - and help us work out where that is. Agentic and AI-assisted development is changing how we build, and we're honestly still figuring out how to use it well. We'd like someone who finds that question genuinely interesting and wants to work it out together with the team.
• Ship steadily. We'd rather ship early and often, catch risks before they grow, and keep a predictable pace than rely on heroics close to a deadline.

Your profile

• A track record of shipping. You've delivered non-trivial features end to end in production and know how to balance "good enough to ship" against "polished." You're comfortable working in an interdisciplinary team.
• Breadth, and the willingness to go deep. Our stack is broad (Go, React, Python, Kubernetes, Terraform), and we don't expect anyone to walk in fluent in all of it. If you're strong in part of it and ready to grow into the rest, that's exactly what we mean. Generalists and people with one clear focus area are equally welcome.
• A collaborative way of working. You thrive in collaborative environments, can explain technical trade-offs to non-technical colleagues and you're glad to support less experienced engineers when it helps the team.
• Initiative. You don't wait to be handed tickets - you see what needs doing, work out the "how" with the team, and get on with it.
• An open mind on AI-assisted engineering. You don't need to be an expert, nobody really is. You see automating the tedious parts as worthwhile and are happy to explore how far the current tools can take us.
• A security clearance (Sicherheitsüberprüfung nach SÜG) may be required for this position and therefore your eligibility is a key criteria.
• Professional proficiency in German and English (written and spoken) required for documentation, async communication, and cross-team collaboration.
• Work experience. We expect a minimum of 5 years of relevant work experience in customer-centric, project driven end-to-end delivery development with strong ownership and commitment.

Why us?

At north.io we are committed to creating a culture of collaboration, creativity, and excellence. Therefore, we need driven people like you to foster this culture for the upcoming development.
So if you're looking for a place to grow your skills, unleash your creativity, and make a real impact, north.io is the perfect place for you. Let me give you a quick overview of our culture and it’s benefits:

• Innovation - You’re not just building software, you’re creating the foundation that enables our customers to turn their visions into production faster, scalable and safer than ever. Your work will directly accelerate how the company creates features and delivers value.
• Technical Mastery - You’ll operate across a diverse landscape (cloud, on‑prem, hybrid) with a modern, forward‑leaning toolset (Go, React, Python, Kubernetes, Terraform). This is your playground to refine your craft, evaluate new technologies, and set lasting engineering standards.
  
• Hybrid Working Model (Kiel/Hamburg area) - So you can choose to do home office and work from our office in Kiel 2 to 3 days per week. Either way, you will be provided with high-quality work equipment to meet your needs.
• Extended Holidays - 30 days of holidays per year. We want our employees to have enough time to recharge.