Senior API Developer (Backend)
Join a high-impact product team as a Senior API Developer, building scalable backend systems with Kotlin/Java, Kafka, and AWS while shaping architecture and driving technical excellence.
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Job Title: Senior API Developer (Backend)
Location: Hamar, Norway (On-site)
Job Type: Contract
Role Overview:
We are seeking a highly skilled Senior API Developer to join a cross-functional product team focused on building scalable and responsible digital solutions. This role requires strong backend expertise, architectural thinking, and close collaboration with business stakeholders and engineering teams.
You will play a key role in designing, developing, and maintaining robust APIs and backend systems, while contributing to technical direction and potentially taking on Tech Lead responsibilities.
Key Responsibilities:
Design, develop, and maintain scalable backend systems and APIs.
Build and manage integrations across systems and services.
Contribute to system and solution architecture decisions.
Work with streaming technologies and data pipelines.
Collaborate closely with product owners, stakeholders, and other development teams.
Ensure high performance, reliability, and security of applications.
Mentor team members and provide technical leadership when needed.
Required Qualifications:
Extensive experience in backend development (senior level).
Strong expertise in API development and integrations.
Proficiency in Kotlin and/or Java.
Solid understanding of system architecture and scalable system design.
Experience building robust, high-availability systems.
Preferred Qualifications:
Experience with streaming architecture (e.g., Kafka).
Familiarity with cloud platforms such as AWS.
Frontend development experience is a plus.
Previous experience in a Tech Lead or similar leadership role.
Personal Attributes:
Proactive and takes ownership of tasks and outcomes.
Strong problem-solving mindset.
Excellent collaboration and communication skills.
Team-oriented with a focus on knowledge sharing.
Product-focused mindset is an advantage.
About Sperton
This Position is Sponsored by Sperton Global, a recruitment and consulting company with an international reach. We are committed to helping our clients achieve success in their hiring processes, finding the right people for the right positions.
- Locations
- Norway
- Employment type
- Contract
- Job location
- Hamar, Norway
Workplace & Culture at Sperton
At Sperton, we believe that great results come from great people.
Our culture is built on trust, collaboration, and a shared passion for delivering quality in everything we do.
We are a Norwegian-owned international company with colleagues across Europe, Asia, and the USA, working together seamlessly across time zones and cultures. Our teams are diverse, yet united by the same goal — to connect people and companies in meaningful ways.
We value openness, initiative, and continuous learning. Everyone at Sperton is encouraged to take ownership, share ideas, and challenge existing ways of working to make our solutions even better.
Even though we operate globally, our approach is personal. We take pride in creating a supportive and inclusive environment where people feel heard, respected, and motivated to grow — both professionally and personally.
