Mid-level Full-Stack Developer (m/f/x)

Salary Competitive

Join a cutting-edge tech scale-up, right in the heart of Copenhagen!

Are you a versatile developer who enjoys working across the entire stack? Do you love being in a dynamic, multicultural environment where autonomy and innovation are celebrated? At Ocean.io, we’re looking for a talented full-stack developer like you to help us transform how B2B companies acquire customers using groundbreaking technologies. If you’re excited about building scalable, high-performance applications with the latest tools, we want to meet you!


What you'll be doing:

  • Full-Stack Development: Develop and maintain robust, scalable applications by working across both frontend and backend using HTML, CSS, Typescript, and Python. From designing responsive UIs to building powerful APIs, you’ll be contributing across the stack.

  • API Integration & Backend Development: Design and implement backend logic and RESTful APIs to support various frontend features. Optimize database queries, handle data processing, and ensure smooth data flow between the frontend and backend.

  • Frontend Development: Build intuitive and visually appealing interfaces using frameworks like Svelte/React. Transform wireframes and designs into functional UIs that deliver exceptional user experiences.

  • Code Review & QA: Conduct thorough code reviews, ensuring our codebase is clean, maintainable, and bug-free. Your attention to detail and commitment to quality will help us set a high standard.

  • Collaboration & Mentorship: Work closely with fellow developers to tackle complex technical challenges and share best practices. Mentor junior developers, helping them grow and succeed within the team.

  • Research & Innovation: Stay at the forefront of technology by exploring new tools, frameworks, and methodologies. We love innovation—bring your ideas and help us continuously improve our platform!

  • Project Ownership: Collaborate with project managers to plan, prioritize, and deliver features on time. Be proactive in identifying potential issues and driving projects to successful completion.


Your tech stack:

Must-Haves:

  • Proficiency in Javascript/Typescript

  • Hands-on experience with Svelte, React, Vue, or Angular

  • Experience working with a backend language

  • A creative, problem-solving mindset and a passion for innovation

  • Git for version control and collaboration

Nice-to-Haves:

  • Experience with Svelte/Sveltekit

  • Knowledge of Python

  • Familiarity with NoSQL databases like Redis, Cassandra, or Elasticsearch

  • Understanding of RabbitMQ for messaging and communication

  • Testing frameworks 


Ready to make waves with us? If you’re passionate about full-stack development and this sounds like your kind of team, we’d love to hear from you!

Perks and benefits

This job comes with several perks and benefits

Free lunch
Free lunch

Free coffee / tea
Free coffee / tea

Near public transit
Near public transit

Social gatherings
Social gatherings

Free office snacks
Free office snacks

Free friday beers
Free friday beers

See all 16 benefits

Working at
Ocean.io

Ahoy there! Welcome to Ocean.io – where innovation meets the sea breeze in the heart of Copenhagen, Denmark. We're not your typical 9-to-5 crew; we're a group of passionate individuals riding the waves of AI to redefine what's possible in the vast ocean of information. We are aiming to massively impact the way companies acquire customers through both inbound and outbound in the B2B space. In our ship, diversity is our anchor, and collaboration is our compass. Hailing from different corners of the world, our crew brings together a mix of skills, perspectives, and a shared love for turning challenges into opportunities. We give responsibility upfront and we encourage autonomy and self-development. If you thrive in such an environment, you’ll fit right in! Join us!

Read more about Ocean.io

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