Senior Backend / Fullstack Developer

<p>We’re Aritma – a fintech company entering an exciting scale-up phase. Backed by a leading private equity firm, we’re building open APIs that seamlessly connect accounting and banking systems, transforming how businesses handle financial workflows.</p><p>We’re now looking for experienced backend or fullstack developers who want to help shape our products, lead by example, and grow with us as we scale both in Norway and internationally.</p><h2>🛠️ What you'll do</h2><p>As a senior developer at Aritma, you’ll play a central role in a product-focused and fast-growing tech team. You’ll work closely with our product managers to build new features, solve real customer problems, and contribute to architectural decisions.</p><p>You’ll also:</p><ul> <li>Take ownership and drive technical direction within your team</li> <li>Guide and support junior developers through code reviews, mentoring, and pair programming</li> <li>Help us make smart tech choices as we evolve our platform</li> </ul><h2>⚙️ Our stack</h2><p>We work with a modern, cloud-native stack including:</p><p><strong>Backend:</strong> C#, .NET, Azure, MS SQL</p><p><strong>Infrastructure:</strong> Microservices, Docker, Kubernetes, Terraform</p><p><strong>Frontend:</strong> Next.js, React</p><h2>🤖 Working smarter with AI</h2><p>We believe that embracing AI is key to working smarter and staying competitive. At Aritma, we actively explore and adopt AI tools across engineering, product development and operations.</p><p>As a senior developer, you’re expected to stay curious, experiment with AI-driven tools, and help us continuously improve how we work. If you're already using AI to enhance your development process – even better.</p><h2>🔍 We're looking for someone who</h2><ul> <li>Has solid experience with backend development, ideally in .NET/C#</li> <li>Writes clean, maintainable code and cares deeply about quality</li> <li>Enjoys taking responsibility and isn’t afraid to challenge the status quo</li> <li>Wants to grow into a Tech Lead role (if not already there)</li> <li>Uses AI tools as part of your daily workflow, and enjoys working in a forward-thinking tech culture</li> <li>Communicates well and thrives in a collaborative, agile environment</li> </ul><p>For one of the roles, it’s preferable if you have experience with ERP-systems like Microsoft FO and/or Microsoft Business Central.</p><h2><strong>🚀 About Aritma</strong></h2><p>Aritma connects, simplifies, and automates financial processes for more than 40,000 Nordic companies. Our systems handle over €140 billion annually—and we’re in the middle of an intense scale-up phase! We’ve grown from 30 to 100 MNOK in ARR in just two years, added 20 new colleagues last year (now approaching 60 in total), and recently brought in <a href="https://www.main.nl">Main Capital Partners</a> as our majority owner and strategic growth partner.</p><p>In the coming years, we’ll expand internationally, pursue strategic acquisitions, and—most importantly—build the organization that will power and manage this growth. This is where the real journey begins.</p><h2><strong>🤔 Why Aritma?</strong></h2><p>Working at Aritma isn’t for everyone. But for the right people, it might just be the opportunity of a lifetime.</p><p>Things move fast—but we have fun, don’t take ourselves too seriously, and laugh a lot.</p><p>We work hard—and grow both personally and professionally every day.</p><p>You need to thrive in collaboration, but also be independent and proactive.</p><p>We’ve built a strong culture that attracts people who want more than just “a job.” We’re building a team that supports and celebrates each other, where psychological safety matters and every voice is heard—regardless of title or seniority.</p><p>Our flat structure gives you real influence over your day-to-day—and the chance to build your career at rocket speed alongside our international ambitions.</p><p>If you’ve dreamed of being part of a team that’s going places—and of building something big from Bergen—don’t hesitate to get in touch.</p><h2><strong>📍 Practical Info</strong></h2><ul> <li><strong>Location:</strong> Bergen (HQ)</li> <li><strong>Employment Type:</strong> Permanent (100%)</li> <li><strong>Start date:</strong> As soon as possible or by agreement</li> <li><strong>Number of roles:</strong> 2</li> </ul><h2><strong>💼 What We Offer</strong></h2><p>At Aritma, you’ll get more than a job – you’ll get ownership, trust, and real influence on a high-growth journey backed by solid investors. We offer:</p><ul> <li><strong>A chance to join a PE-backed product company</strong> with clear ambitions for international growth</li> <li><strong>An opportunity to shape and own</strong> key parts of our platform and operations</li> <li><strong>Competitive salary</strong>, based on experience and level</li> <li><strong>A motivated and social team with high autonomy,</strong> still collaborative and fun</li> <li><strong>Flexible working hours and vacation policies</strong> (6 w