Senior Software Engineer, Backend

Job Description As a Senior Software Engineer in the Price Adjustments product, you will design, build, and improve secure, scalable backend solutions that support pricing and adjustment capabilities across H&M. You will work end-to-end across the software lifecycle, from solution design and development to testing, release, maintenance, and continuous improvement. WHAT YOU'LL DO Design and develop scalable, secure, and high-performing backend systems using .NET/C#. Drive API design and system-level decisions with focus on maintainability, performance, and extensibility. Drive key technical initiatives from idea to production, ensuring quality and long-term sustainability. Apply clean code, SOLID principles, testing strategies, and engineering best practices in daily delivery. Improve system performance across application, database, and infrastructure layers. Strengthen observability through logging, monitoring, tracing, and alerting. Support secure development practices, including application security and Azure cloud security standards. Collaborate with DevOps, platform, product, and other engineering teams to improve CI/CD and release processes. Mentor and support other engineers, contributing to a strong and collaborative engineering culture. WHO YOU'LL WORK WITH You will be part of the Price Adjustments product team and collaborate closely with Product Managers, Engineering Managers, Software Engineers, Architects, DevOps and Platform teams, as well as stakeholders across Business Tech. Together, you will help build modern digital solutions that enable H&M to deliver reliable, secure, and customer-focused technology at scale. WHO YOU ARE We are looking for people with... Strong experience with .NET Framework / C# and backend development in enterprise environments. Deep hands-on experience with Microsoft Azure, cloud architecture patterns, and Azure security best practices. Strong knowledge of Entity Framework, T-SQL, and SQL Server, including schema design and performance tuning. Experience designing APIs, distributed systems, and scalable backend architectures. Good understanding of CI/CD pipelines, preferably with GitHub Actions or similar tools. Experience with debugging, performance tuning, observability, and production incident management. Solid knowledge of secure coding and application security practices. Bonus: Azure certifications, Azure Data Factory, microservices, Docker/Kubernetes, messaging systems, or large-scale distributed systems. And people who are... A strong owner who can take initiatives forward independently and deliver high-quality outcomes. Curious, analytical, and confident in solving complex technical problems. Comfortable influencing technical direction and continuously improving engineering practices. A collaborative team player who communicates openly and supports knowledge sharing. Passionate about building resilient, scalable, and secure systems that create real business value. WHO WE ARE H&M Group is a global company of strong fashion brands and ventures. Our goal is to prove that there is no compromise between exceptional design, affordable prices, and sustainable solutions. We want to liberate fashion for the many, and our customers are at the heart of every decision we make. We are made up of thousands of passionate and talented colleagues united by our shared culture and values. Together, we want to use our power, our scale, and our knowledge to push the fashion industry towards a more inclusive and sustainable future. Technology is a key enabler in this journey. At H&M, our Business Tech teams build modern digital products and platforms that support our customers, colleagues, and business globally. WHY YOU'LL LOVE WORKING HERE At H&M Group, we are proud to be a vibrant and welcoming company. We offer our employees attractive benefits with extensive development opportunities around the globe. Staff discount card: Usable on all our H&M Group brands in stores and online. H&M Incentive Program (HIP): Included in our HIP. You can read more about our H&M Incentive Program here. Competitive pensions: Collective Agreement and ITP pensions competitive to the Swedish market. Generous vacation: 30 days' vacation, health care allowance, and good work-life balance. Additional perks: Discounts from Benify. Innovative Environment: Work with cutting-edge technology and innovative solutions. Global Impact: Be part of a team that influences users worldwide. Professional Growth: Endless opportunities to learn and develop your skills. Collaborative Culture: Join a motivated team that values collaboration and excellence. JOIN US Our uniqueness comes from a combination of many things - our inclusive and collaborative culture, our strong values, and opportunities for growth. But most of all, it is our people who make us who we are. Take the next step in your career together with us. The journey starts here. *We are committed to a recruitment process that is fair, equitable, and based on competency. We therefore kindly ask you to not attach a cover letter in your application.

ABOUT US STARK is a new kind of defence technology company revolutionizing the way autonomous systems are deployed across multiple domains. We design, develop and manufacture high-performance unmanned systems that are software-defined, mass-scalable, and cost-effective. This provides our operators with a decisive edge in highly contested environments. We’re focused on delivering deployable, high-performance systems - not future promises. In a time of rising threats, STARK is bolstering the technological edge of NATO Allies and their Partners to deter aggression and defend Europe - today. YOUR MISSION You will develop and integrate embedded and backend software that runs on our unmanned systems. The work ranges from implementing ROS2 components to supporting hardware bring-up and testing. RESPONSIBILITIES * Develop embedded/back-end software modules for UAV systems * Implement ROS2 nodes, interfaces, and integration logic * Work on embedded Linux platforms and support hardware bring-up * Debug issues across software, firmware, and hardware boundaries * Support system testing and validation with hardware-in-the-loop in real life * Collaborate with Autonomy, Flight Controls, and Hardware teams * Contribute to clean, reliable code and clear documentation QUALIFICATIONS * Experience in C++ development for embedded or robotics systems * Solid background in ROS2 (nodes, topics, services, DDS) * Familiarity with Linux-based development * Understanding of sensors, communication protocols, and integration challenges * Experience with robotics, UAVs, or other mission-critical systems is an advantage * Hands-on mindset; comfortable testing on actual hardware * Nice to have experience of Computer Vision, Sensor Processing and NVIDIA Jetson  * Excellent communication and stakeholder management experience * Native/ Full professional proficiency Swedish or Norwegian  language skills are a must have * You must be eligible for Swedish security clearance (Säkerhetsprövning) and be willing to travel to Germany and other European locations when needed.