Senior Full-Stack JavaScript Developer

👋 We’re Attensi, a tech company born in Norway with a passion for gamified simulation training. Since 2012, we’ve grown into a global player, with solutions trusted by some of the world’s biggest brands across 150+ countries and 50+ languages.

We combine gamification, realistic interactive scenarios, and decision-driven dialogues, all powered by our own game AI, to deliver immersive, hands-on learning experiences that scale across large organizations and drive real behavior change.

Our clients include Circle K, BCG, PwC, Accenture, KPMG, ABB, Equinor, and Novartis. Today, we’re a team of 240+ Game Changers across Europe and the US, with 120 of us based at our HQ in Oslo.

Want to join a world-class tech team building the systems that power immersive learning worldwide?

You’ll be part of the team that builds the underlying systems powering Attensi’s global learning experiences, used by hundreds of thousands of users worldwide.

This is a full-stack JavaScript role with a strong backend focus. You’ll work primarily on backend services and APIs built with Node.js and TypeScript, and contribute to frontend features in our superuser apps using React when needed.

What You Will Do

• Design and build secure, scalable applications using Node.js and TypeScript with and without AI

• Configure and deploy backend services to Kubernetes using GitOps (ArgoCD)

• Build and maintain CI/CD pipelines through GitHub Actions

• Contribute to frontend features using React and ShadCN design system

• Work with technologies like PostgreSQL, Redis and Kafka

• Take part in discussions about capacity planning, performance and security

• Help operate and improve our live production environments

• Collaborate in small, cross-functional feature teams to build innovative learning experiences

Our backend infrastructure runs on AWS and includes technologies such as Node.js, Ruby on Rails, .NET Core, PostgreSQL, Redis, Kafka, Kubernetes, and ArgoCD. You don’t need to know everything; strong fundamentals, curiosity and a willingness to learn matter most.

Who You Are

• Solid backend development experience with Node.js/TypeScript

• Experience with other languages like Python, Ruby, or C# is also valuable

• Good understanding of design, scalability and industry best practices

• Experience with, or interest in, frontend development using React

• Relevant education or equivalent practical experience

What we offer

At Attensi, you’ll join a fast-growing scale-up that’s already a global leader in its field. Expect a flat, open, and collaborative environment, surrounded by smart, talented colleagues from diverse backgrounds.

We’re committed to helping people grow with us, and you’ll have the opportunity to shape your role over time. Expect exciting challenges in a dynamic and innovative environment with big ambitions.

We work hard, but we also have fun—from Attensi-days to sporting events, after-work drinks, parties, game nights, and company trips.

Excited to make an impact with us? Let’s talk!