Event-driven Architecture

Aira Group AB

10% of Europe’s CO₂ emissions are caused by residential heating and energy bills are out of control. Aira is here to change that. With our intelligent Aira Heat Pump at the heart, we’re making the switch to clean energy-tech easier and more affordable. Helping Europe turn off gas and slashing energy costs one home at a time. Founded in 2022, and with 1200+ employees and counting, Aira is driving the clean energy revolution by providing homes with modern clean energy-tech solutions such as solar power, battery storage solutions and heat pumps. With a state-of-the-art production facility in Poland, and HQ in Stockholm, Sweden, and hubs across the UK, Germany and Italy, Aira is well on track to install clean energy-tech into 5 million homes by 2034. About the role As a Senior Flutter Developer in the Engagement Team, you will build the tools that enable our field teams to deliver smooth installations and exceptional service. You'll be part of one of our cross-functional teams working primarily with the mobile application that installers and service technicians use. In practice, this means building tools for commissioning and servicing the full range of Aira's clean energy systems — heat pumps, solar panels, batteries, and inverters, as well as managing software updates and helping technicians troubleshoot in the field. As a Senior Flutter developer, you will: Own and ship features across iOS and Android from a single Flutter codebase Partner with UX design to craft interfaces built for real field conditions, used by technicians on-site, often under time pressure Work tightly with the in-field teams to optimize the commissioning experience. Build reliable device integrations over Bluetooth, Wi-Fi, and Thread - connecting technicians directly to the hardware they're installing and servicing Make pragmatic decisions about when to prioritize speed and when to focus on long-term scalability Contribute to architectural decisions that support our rapid growth and international expansion What you bring to the team: Solid experience with product-driven software development and agile environments 5+ years of mobile development experience Flutter experience preferred, React Native considered. Experience building and consuming REST APIs and integrating third-party SDKs Familiarity with state management patterns such as Bloc or Riverpod, and an appreciation for testable code Comfort working with structured data contracts and binary protocols — we use Protobuf for communication between the app and our edge devices We would also appreciate if you have experience with or knowledge of some of the following: Hands-on experience with device communication protocols such as Bluetooth LE, Wi-Fi, or Thread Familiarity with embedded Linux environments or edge computing. The devices our app talks to run a Rust application on Linux hardware Experience with event-driven architectures or message brokers such as Kafka A track record of thriving in rapid-growth environments (start-ups, scale-ups, or new projects). What is in it for you? Develop and grow in a fast-growing scale-up with a supportive and inclusive culture. Contribute to something measurable. Every smooth commissioning enables a more environmentally sustainable Europe. See your work in action in the real world. The app you build is used by technicians installing clean energy systems in people's homes across Europe every day. Collaborate with colleagues across the full value chain, from R&D in Sweden and manufacturing in Poland to installation teams on the ground in the UK, Germany, and Italy. Enjoy the flexibility of our hybrid work model, with our office centrally located in Stockholm near Sankt Eriksplan and Odenplan. We interview on a rolling basis throughout the summer, with the majority of interviews taking place in August. At Aira, we champion next-generation energy as well as diversity and inclusion. We firmly believe that a diverse workforce fosters innovation and creativity, enhancing our ability to serve customers and communities effectively. We welcome individuals from all backgrounds, cultures and perspectives to join our team. Our commitment is to uphold equality and inclusivity, fostering a collaborative environment where everyone can thrive and contribute to a better future for our people and the planet.

UU Brand & Recruit AB

As a Software Engineer at Nordiska, you’ll help shape system architecture, deliver complex features, and write high-quality code - building embedded finance where banking meets tech. As part of our AI-first strategy, we aim for 80% of all code to be written by agentic AI systems by the end of 2026, empowering engineers to focus on architecture, quality, and innovation. Bank at core, innovation at heart Nordiska is a bank offering a wide range of financial services, allowing us to tailor solutions to each customer while simultaneously enabling them to gain access to advanced financial technology. Part of our offering is our Embedded platform, enabling enterprise partners across Europe to seamlessly integrate financial services into their product offerings. We also provide corporate and real estate financing, as well as sustainable savings with a government-backed deposit guarantee. To meet future demands, we continuously scale our modern technology platform, expand partner integrations, and accelerate product innovation to help shape the future of financial services. Working at Nordiska Since our founding, we have been dedicated to making a difference and driving innovation. We work towards an ambitious vision and goals, backed up by our history of successfully delivering high-quality results and sustainable growth. Historically and going forward, the people working at Nordiska are what enables our success. We balance our professional environment with an entrepreneurial mindset, always acting with honesty and responsibility, to build long-term trust among customers, partners and employees. About the Role As a Software Engineer, you will primarily work with Nordiska Embedded. We combine the best of two worlds - at our core, we’re a stable, regulated bank paired with a product-tech mentality that thrives on agility, curiosity, and innovation. As Nordiska expands into new markets, onboards new customers, builds new products and features - you work closely with the Tech Lead and Lead Engineer to set technical standards and ensure that the team’s output is robust, scalable, and secure. You’ll be an important part of modernizing systems, reducing technical debt, and are a key contributor to system architecture, complex feature development, and code quality. In addition to your technical work, you'll be a part of fostering a culture of continuous improvement, and being a part of a high-performing team, as we grow. In the role, you will: Drive engineering excellence by defining technical standards, system architecture, design principles, and long-term technology strategy for engineering excellence. Deliver high-impact features - implementing complex functionality that meets stringent performance, reliability, and security requirements. Drive initiatives that improve performance, enhance scalability, and reduce technical debt. Anticipate and resolve architectural bottlenecks, proactively preventing issues. Ensure best practices, clean code, testing/observability, and a culture of continuous learning. Ensure technical excellence through structured code reviews, consistent application of coding standards, and alignment with established best practices. Collaborate cross-functionally and work closely with Product and Engineering leadership to ensure technical execution supports strategic objectives. Your Professional Profile As a true self-leader, you take ownership and operate effectively in a fast-paced, high-accountability environment. You communicate clearly, collaborate seamlessly across functions, and navigate confidently in a regulated context. You’ll contribute to a high-performing and humble team, bringing strong analytical skills and a proactive, solution-driven approach. We believe that you have: Mid- or senior-level depth in programming, frameworks, and system design in C#/.NET. Expertise in event-driven architecture (EDA) and Azure, with a strong interest in AI technologies considered an advantage. Hands-on expertise with architectural patterns, scaling strategies, performance optimization, security, scalability and resilience. Demonstrated capability to mentor others and lead by example. Proven track record of delivering high-quality, large-scale software systems. Fluency in Swedish and English, both spoken and written. Please note that we are also recruiting Software Engineers within our Scala stack follow the link! Application If you’re looking to join a growth-driven environment that pairs innovation with profitability and reliability, welcome to Nordiska. We look forward to receiving your application. We review and interview continuously, with background checks as part of the final stage of our process. For questions about the role and or more information, you are warmly welcome to contact Ida Garamvölgyi at ida.garamvolgyi@nordiska.com or +46704-385 325.