Senior Backend Engineer

About the company A specialist in identity, secure transactions, and digital services, IN Groupe is the global leader in secure identity and trust services. Every day, our 4,000 employees across 40 countries work to ensure that everyone has access to a reliable and secure identity, both in the physical and digital worlds. With our solutions and our international network of 10 R&D centers, we support governments and businesses in more than 130 countries. Joining IN Groupe means helping to shape the future of the identity and secure transaction market. Become part of our international teams — driven by innovation and proud to design solutions that make life easier and protect personal data for millions of people around the world. About the role We are looking for a Senior backend engineer to join our Stockholm office with strong, hands‑on expertise in modern Java, experienced in building and maintaining distributed systems and microservices. Brings solid proficiency in CI/CD and Azure DevOps (or comparable platforms), along with practical knowledge of cloud environments, containerization technologies such as Docker and Kubernetes, automated testing practices, and operating services reliably in production. Main responsibilities •Focus on backend development, with responsibility for services, databases, and system integrations. • Develop, improve, and maintain services with a strong focus on reliability, scalability, and long-term maintainability. • Select and use technologies based on problem-solving value, not trendiness. • Ensure that deliveries are on time and secure, always balancing speed with quality. • Collaborate closely with teammates and stakeholders, enabling fast and sustainable delivery. • Over time, take a leading role in driving improvements in both technology and ways of working. Our Tech Stack (key areas for this role) • Java (primary language: deep expertise required) • Spring Boot • REST, Microservices, Databases • Azure (cloud environment), Docker, Kubernetes About you • Highly experienced in backend Java development and proficient with Azure. • Results-oriented: you deliver what is needed, when it is needed. • Pragmatic: you enjoy new technology but choose what best solves the current problem while limiting technical debt. • Humble and grounded: you listen, collaborate, and keep the team's health in mind. • Independent yet collaborative: you take initiative but thrive in teamwork. • User-focused: the end user's experience is always your guiding star. Qualifications • Extensive experience in Java backend development (main requirement). • Experience with Spring Boot and modern development practices. • Solid understanding of Microservices and integrations. • Professional proficiency in English. What we offer • Impactful work: Your code directly powers secure identity services used by real customers worldwide. • A pragmatic environment: We value smart choices over shiny tools. You'll use the most adapted technologies to solve problems, reduce complexity, and limit future technical debt. • A healthy team culture: We believe in humility, collaboration, and keeping team well-being in balance with delivery goals. • End-to-end responsibility: You'll see the whole lifecycle, from development through deployment to customer use. • Growth into leadership: Over time, you'll have the opportunity to take on a bigger role in driving initiatives and supporting others in the team. Öppen för alla Vi fokuserar på din kompetens, inte dina övriga förutsättningar. Vi är öppna för att anpassa rollen eller arbetsplatsen efter dina behov.

At Umain, we're not just creating software; we're crafting the future, one innovative project at a time. With our motto "Shape, Ship, Scale," we empower our team to not only envision the future but also play a pivotal role in building it. We're a dynamic team where you can shape the future, ship groundbreaking solutions, and scale your abilities in many different ways. We are now looking for Senior Backend Engineers who want to build robust solutions that power products used by millions of people. We have a proven track record: * 400M+ total app downloads * 50M+ monthly active users * Backends handling tens of thousands of requests per second * Globally recognized, multi-market applications The office in Stockholm is our default workplace, but we stay flexible when working from home makes sense for the team or the project. We trust each other to coordinate and keep things professional. Most of our work is built in Kotlin, Go, and TypeScript, and we aim to pick the tools that best fit each project so our teams can focus on delivering the right solution. The role is broad but centered on backend. You'll work on projects for both Swedish and international companies, including systems that integrate external services, automation, and frontend clients. AS A SENIOR BACKEND DEVELOPER, YOUR ROLE WILL INVOLVE: * Building high-performance backend systems in Go, Kotlin, TypeScript (Node.js), or Python, depending on the project. * Working with frameworks such as Ktor, Fiber, and NestJS. * Designing cloud-native systems with Infrastructure as Code (Terraform) across AWS, GCP, and Azure. * Developing robust data models and database architectures to support application requirements. * Building observable systems with the right metrics, logs, tracing, and alerting to understand and operate what we ship. * Building and maintaining CI/CD pipelines with containerized deployments and scaling strategies. If you're excited by working across the stack, always learning, and making a real impact at scale, we believe you'll feel at home at Umain. WHO YOU ARE: * 5+ years of experience building and running backend services in production. * Comfortable owning a system end to end, from API design to deployment and operations. * Strong in at least one of our core languages (Kotlin, Go, or TypeScript), and willing to pick up others as projects demand. * Experience making technical decisions on a team: weighing tradeoffs, reviewing code, and mentoring peers. * A product mindset: You think about maintainability, user impact, and long-term health, not just the ticket in front of you. * Familiar with agentic development tools * You treat unfamiliar problems and new technologies as an opportunity rather than a risk. In consulting, the next project often looks nothing like the last one, and you see that as a feature. WHAT WE OFFER: * A personal coach and support to help you develop both professionally and personally. * A range of diverse projects that explore and push the boundaries of what's possible. * A fun and fair work environment where you can grow through meaningful challenges and great colleagues. * Multidisciplinary teams where backend engineers work closely with product, design, analysis, and testing. * Working alongside some of the largest and most forward-thinking brands on the planet. WHY UMAIN? Career Framework We believe in fairness and clarity, which is why we've established a transparent career framework to ensure equal pay and equal opportunities for all. Your growth and success are as important to us as they are to you. Together with your coach, you will build your own development plan and grow in your career. Work-Life Balance At Umain, we understand that life doesn't pause when you walk into the office. We welcome team members from all walks of life and recognize the richness that different backgrounds, ages, and life stages bring to a team. Whether you're taking care of your family, your pets, or yourself, we're committed to supporting a healthy balance that respects your needs. Skills Over Degrees We're more interested in what you can do than in the diplomas you hold. Talent, drive, and creativity are what count at Umain. Here, you'll find opportunities to grow, learn, and excel in your career, regardless of your educational background. Background check Umain conducts a background check for final candidates in accordance with our internal policies. The check is carried out only with your consent and is ordered by our CISO through our approved screening partner. The scope of the check depends on the role level. This step is performed late in the recruitment process and is used solely to support a secure and fact-based hiring decision.