Your New Role 

We are looking for a talented and motivated Senior Backend Developer to join our dynamic team. You will play a key role in developing and maintaining our digital platforms, ensuring we deliver robust and scalable solutions that enhance our customer experience. The ideal candidate is a strong team player, passionate about high-quality code, and eager to learn new technologies.

Key Responsibilities

• Develop and maintain high-quality backend services using Node.js and related technologies.
• Implement and integrate REST APIs.
• Collaborate with cross-functional teams to define, design, and deliver new features in a microservice environment.
• Participate in code reviews to maintain code quality and share knowledge.
• Identify and solve performance and reliability issues in our applications.
• Work within Agile methodologies (SAFe, Scrum, Kanban) and contribute to continuous improvement.
• Engage in DevOps practices, including CI/CD pipelines and containerization with Docker.

What You Will Need to Succeed

• Strong backend development experience with Node.js, and ideally TypeScript/JavaScript.
• Familiarity with Node.js frameworks such as Express.js, NestJS.
• Experience with relational and NoSQL databases (e.g., Postgres, DynamoDB).
• Experience in API development using REST, GraphQL, or SOAP.
• Good knowledge of cloud services (AWS, Kubernetes)
• Good knowledge of DevOps tools (Docker) and CI/CD practices using Git, Jenkins and cloud-based hosting platforms (Bitbucket).
• Understanding of authentication and authorization mechanisms (JWT, OAuth 2.0).
• Experience with messaging systems (e.g., Kafka).
• Strong communication skills (fluency in English) and a curiosity-driven mindset.
• Demonstrated growth mindset and willingness to learn new technical and non-technical skills.

Bonus Skills

• Interest in AI-assisted development and familiarity with tools like GitHub Copilot to enhance productivity and code quality.
• Experience with single page applications, and Headless CMS architecture

DNA In a Nutshell:

DNA is one of the leading telecommunications companies in Finland. Our purpose is to connect you to what matters most. We offer connections, services and devices for homes and workplaces, contributing to the digitalisation of society. Already for years, DNA customers have been among the world leaders in mobile data usage. DNA has about 3.7 million subscriptions in its fixed and mobile communications networks. The company has been awarded numerous times as an excellent employer and family-friendly workplace. In 2024, our total revenue was EUR 1 100 million and we employ about 1,600 people around Finland. DNA is a part of Telenor Group, a leading telecommunications company across the Nordics. 

More information: www.dna.fi, X @DNA_fi, Facebook @DNA.fi and LinkedIn @DNA-Oyj.