Martin Marelius Johnsen

Fullstack Developer - Oslo

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About me

I am a 26-year-old man stationed in Oslo, Norway, working as a fullstack developer. With a strong foundation in software development, I bring expertise in various domain technologies and a passion for taking initiative. While my current role is in the finance industry, my skills and interests extend far beyond that domain.

One aspect that sets me apart is my wide-ranging knowledge and involvement in business discussions. I actively contribute to strategic conversations, leveraging my understanding of technology and its impact on business outcomes. Additionally, I feel confident and comfortable when presenting ideas and solutions to stakeholders, utilizing my communication skills to articulate complex concepts effectively.

Beyond my professional endeavors, I embrace an adventurous spirit. Climbing and disc golf are two hobbies that fuel my sense of exploration and provide a balance to my technical pursuits. These activities not only challenge me physically but also foster resilience, problem-solving, and a deep appreciation for nature.

Moreover, I have an entrepreneurial mindset and constantly seek opportunities to turn innovative ideas into reality. This drive for innovation and the willingness to take risks propel me forward, allowing me to explore new ventures and make a meaningful impact.

In summary, as a proactive and knowledgeable fullstack developer, I bring a diverse skill set to the table. With a strong foundation in software development, business acumen, presentation skills, and a passion for entrepreneurship, I am well-equipped to navigate both technical and business aspects. I strive to continually grow, contribute, and make a difference in the ever-evolving landscape of technology.

Portfolio and Projects


Website which shows live busyness and arrival times at all Norwegian airports.



An app which allows for planning and collaboration on study plans.


Hero Miner

Mobile game where you mine resources and upgrade your vehicle.

Work Experience

Software Engineer

Software Engineer

Riverty Group AS - Oslo, Norway

Sep. 2022 - Present

Responsible for the design, development, and maintenance of server-side applications and systems. I work closely with a team of developers to build and improve financial services, ensuring that our systems are reliable, scalable, and secure in handling thousands of financial transactions daily.

  • .NET
  • C#
  • MySQL
  • RabbitMQ
  • Angular
  • Azure DevOps
  • Cloud
  • Docker
  • Kubernetes
  • Terraform
  • Finance
Fullstack Developer / Consultant

Fullstack Developer / Consultant

Self Employed - Alta, Norway

March 2022 - Present

I create websites and apps from concept to launch. I have a strong foundation in multiple programming languages and work closely with clients to deliver custom solutions. I am motivated, detail-oriented, and constantly seeking to improve my skills and stay up-to-date with the latest technologies.

  • React
  • Mobile Development
  • HTML
  • CSS
  • JavaScript/Typescript
  • AWS
  • Cloud
  • Docker
  • Java
  • C#
Production Lead / Coordinator

Production Lead / Coordinator

Arges AS - Alta, Norway

March 2020 - March 2022 - 2 yr 1 month

As a production Lead in the petroleum industry, I oversee daily operations and coordinate the activities of production teams to ensure efficient and safe production. I also track and maintain production data, troubleshoot issues, and develop strategies to improve efficiency and reduce costs. During my time here I developed and presented a coordination platform demo for the employees to coordinate machine startup and product quality in order to significantly reduce waste and defects.

  • Production Lead
  • Team Coordination
  • Industry Safety
  • Data Analytics
  • Problem Solving
Bachelor - Cognitive Science

Bachelor - Cognitive Science

University of Bergen - Bergen, Norway

Aug. 2018 - March 2020 - 2 yr

Studied Cognitive Science with a focus on Computer Science and IT Development at the University of Bergen. Explored the mind-computer relationship, programming, algorithms, software engineering, and human-computer interaction. Although my studies were not completed, I gained valuable knowledge and skills in technology, fostering a passion for ongoing learning and professional growth.

  • Java
  • Machine learning
  • Cognition
  • Psychology
  • Logic
  • Mathematics