Fullstack Developer - Wisentic AB

At Hemnet, we build one of Sweden’s most widely used digital services. Every day, we help people navigate some of life’s biggest decisions, and that brings high expectations for quality, reliability, and long-term thinking. We’re now looking for a Fullstack Developer to join our B2B & Seller Domain. This team builds products and services that help homeowners and agents make the most of their opportunities in the housing market. About the role 🍏 You’ll be part of an experienced, cross-functional team working across both user-facing features and backend systems. You’ll contribute through hands-on development, technical leadership, and close collaboration with Product Managers, Designers, Analysts, and Engineers. Together, you’ll build solutions that create real value for sellers. You’ll design, build, and maintain scalable backend services using Ruby, Node.js and Nest.js, contribute to frontend development in React, and support and evolve APIs across GraphQL and REST. You’ll also play an active role in our transition toward a more service-oriented architecture, helping break down complex problems and move monolithic systems into modular services over time. Beyond day-to-day development, you’ll take part in technical discussions, contribute to architectural direction, support other engineers through collaboration and knowledge sharing, and help us continuously improve code quality, performance, and developer experience. We also hope you’ll contribute to a team culture where different perspectives are valued and people can grow together. Who we think you are 🤩 Our current stack includes Ruby and Node.js on the backend and Next.js on the frontend. You’ll work with Ruby in this role, but we don’t expect you to know everything from the start. We think you’re an experienced engineer who enjoys building production-grade systems and working through complex problems together with others. You care about code quality, maintainability, and creating solutions that hold up over time. You’re comfortable contributing to technical decisions, and you like collaborating across disciplines to build products that are useful and thoughtful. You don’t need to tick every box on day one, what matters most is that you bring solid engineering experience, a learning mindset, and a generous way of working with others. What you’ll do 💥 * Build and improve Hemnet’s products across the system. * Take part in technical discussions and architectural decisions * Work closely with product, design, and analytics. * Contribute to a sustainable pace, high quality, and a great developer experience. * You’ll use AI tools as part of your day-to-day work, for example to explore ideas, speed up implementation, improve code quality, and support learning and collaboration across the team. I am your new manager 👋 Hi! My name is Tomas, and I’ll be your new manager. I’ve been at Hemnet since 2022 and am currently working as Engineering Manager in our domain called B2B & Sellers. I’m really excited to support the teams that will be working on many new and important areas for Hemnet, including building tools and products for agents to help them make more informed decisions. My leadership style is listening, transparent, accessible, and supportive, while also challenging you to take your next step. Hopefully, we’ll learn a lot from each other and have plenty of fun as we break new ground at Hemnet. As a team, we get things done; we know when and where value can be added, and we’re clear on our priorities. Why did I decide to join Hemnet? I was strongly drawn to the culture and atmosphere – a wonderful combination of kindness, inclusiveness, and helpfulness, paired with high ambitions and a strong drive forward. My impression is that the people and the workplace together create the perfect foundation for you to do the best work of your career. A Note on Inclusion 💚 At Hemnet, we believe that diversity in gender, sexual orientation, ability, neurodiversity, cultural background and life experience makes us stronger. We welcome applicants of all identities and backgrounds. If you meet many but not all of the requirements, we encourage you to apply. We value curiosity, a strong sense of purpose and the motivation to learn and grow, alongside your skills and experiences. A Hybrid Way of Working 🚲 Our vibrant office in central Stockholm is the hub of our collaboration and culture, providing a lively space that fosters team spirit. We come together in the office three days a week, with two flexible remote days. To be part of our team, it’s essential to be based in or near Stockholm. Please note that we're unable to provide relocation assistance for this opportunity.

Vår kund arbetar är en snabbväxande aktör inom bilhandel där handlare köper och säljer fordon mellan varandra via deras plattform. Utöver marknadsplatsen erbjuder vi även: Logistik och internationell transport Finansiering Tester och garantier Bolaget grundades 2018 och finns idag i flera europeiska marknader, med huvudkontor i Stockholm. De drivs av ett entreprenöriellt team och har stark finansiell backing med fokus på skalbara och lönsamma bolag. Vi på kumpan har samarbetat med denna kund en längre tid och nu vill de rekrytera och vi på Kumpan hjälper de med det. Om rollen Som Senior Fullstack Developer blir man en nyckelperson i bolagets techteam och arbetar brett med både frontend och backend. Rollen innebär stor möjlighet att påverka teknikval, arbetssätt och plattformens framtida utveckling. Ansvarsområden inkluderar: Utveckling och vidareutveckling av plattformen Deltagande i och drivande av code reviews Bidrag till och utveckling av tech stack Integration av nya system i samband med förvärv Utforskning och implementering av AI-lösningar Nära samarbete med produkt och affär Under de första månaderna förväntas kandidaten snabbt sätta sig in i plattformen, bidra till kodbasen och vara med och strukturera tekniska arbetssätt. KvalifikationerMinst 6 års arbetserfarenhet av TypeScript, Node.js och React Erfarenhet av databaser (t.ex. PostgreSQL) Stark förståelse för kodkvalitet och vana av code reviews Flytande svenska och engelska, i tal och skrift Meriterande: Erfarenhet av AI-verktyg DevOps Plattformar eller marketplaces Fintech eller transaktionsintensiva system Persona Vår kund söker en självständig och ansvarstagande utvecklare som brinner för teknik och problemlösning. Du är nyfiken, tekniskt driven och trivs i en snabbrörlig miljö där du får testa ny teknik och bidra till utvecklingen av plattformen. De erbjuder dig möjligheten att påverka i det dagliga arbetet. Du arbetar nära både affär och ledning och får vara med och bygga något som kommer att ha stor påverkan inom området. Du blir en del av ett entreprenöriellt team med snabba beslut och hög grad av autonomi, där ditt engagemang och din kompetens verkligen gör skillnad.