Senior Java Developer

Are you a talented Backend Software Engineer with a passion for Web3 technologies and their application in the iGaming industry? If so, we have an exciting opportunity for you! Join us at Betsson as we embark on our journey to develop groundbreaking iGaming products and brands, utilizing the innovative potential of Web3.Your RoleAs a Backend Developer, you will play a crucial role in developing the server-side code and APIs for our web applications. Collaborating closely with our development team, you will ensure system consistency and contribute to delivering an exceptional user experience.Key ResponsibilitiesEngage in sprint planning, task estimation, software development testing, code reviews, and deployment.Maintain and enhance existing software applications.Design code and implement unit tests.Manage SQL and NoSQL data models effectively.

Are you a passionate Frontend Software Engineer with a strong interest in Web3 and its applications in the iGaming sector? If so, we invite you to join us on an exciting journey! At Betsson, we are seeking a talented Software Engineer to help us pioneer innovative iGaming products and brands, harnessing the transformative potential of Web3 technologies. Your Impact As a Frontend Software Engineer, you will collaborate with a dynamic team dedicated to delivering groundbreaking products and exceptional user experiences on a global stage. Your role will involve aligning web design with user experience requirements to ensure top-notch delivery. Your Responsibilities Engage in sprint planning, task estimation, software development testing, code reviews, and deployment. Maintain and enhance existing software applications. Design and implement code and unit tests. Manage SQL and NoSQL data models effectively. What We're Looking For Minimum of 2 years of experience as a Frontend Engineer. Proficient in TypeScript and JavaScript. Experience with at least one JavaScript framework, such as Angular (7+), AngularJS, React with Redux, or Vue.js. Familiarity with Native Web Components (e.g., Stencil.js). Solid knowledge of HTML, CSS, and preprocessors like Sass or LESS. Experience working with RESTful APIs. Proficient in Unit and Integration Testing frameworks such as Jasmine, Jest, or Karma.

Supernormal develops AI-powered tools designed to make work simpler and more productive. The team prioritizes practical technology that streamlines workflows and encourages collaboration, aiming to help teams achieve strong results without unnecessary complexity. Role overview The Backend Software Engineer will have a key role in shaping the AI backend at Supernormal. The position involves leading technical projects from start to finish, guiding architectural decisions, and mentoring other engineers. Reporting to the Head of Engineering, this engineer will collaborate closely with colleagues across engineering, product, and design teams. This role suits someone who enjoys taking ownership, influencing core backend systems, and maintaining quality throughout the stack. The work combines hands-on engineering with technical leadership. What you will do Design, build, and maintain scalable backend services and APIs for Supernormal’s main product. Take responsibility for backend features from technical planning and implementation to testing and monitoring in production. Work with frontend engineers and product teams to define and document API contracts. Troubleshoot and resolve performance, reliability, and scaling issues. Participate in code reviews and help set strong engineering practices for a high-quality codebase. Contribute to infrastructure decisions, including cloud architecture, deployment pipelines, observability, and on-call processes. Requirements Minimum 6 years of professional experience in backend software engineering, with strong knowledge of distributed systems and API design. Proficiency with large codebases in Rust, TypeScript, and Ruby. Experience building and running production systems at scale, with a sense of ownership for shipped applications. Solid understanding of cloud infrastructure (AWS, GCP, or Azure), containerization, and CI/CD workflows. Comfortable working in a small, adaptable team with shifting priorities and broad responsibilities. Clear communication skills and the ability to collaborate across disciplines. Proactive and action-oriented, with a preference for simplicity and iteration over complexity. Preferred qualifications Experience with real-time data processing, streaming architectures such as Kafka or Pub/Sub, or WebSockets. Familiarity with speech-to-text APIs like Deepgram. Location This position is based in Stockholm, Stockholm County, Sweden.

Are you eager to tackle exciting challenges in a dynamic, high-transaction environment? We are on the lookout for an innovative and proactive Backend Software Engineer to join our team. If you have a passion for creating exceptional products and thrive on collaboration, we want to hear from you!The RoleJoin our Player, Rewards & Gamification Product Development team in Stockholm! At Betsson Group, we focus on ensuring customer loyalty through an outstanding customer experience that extends beyond gameplay, featuring tournaments, dynamic personalized campaigns, and much more.As part of our journey towards containerization, you'll play a key role in enhancing the scalability and quality of our systems while adapting to new requirements and working on exciting new features.What You’ll DoDesign and develop distributed backend services using .NET and event-driven architecture.Collaborate with product and commercial teams to transform engagement ideas into scalable, maintainable, and user-friendly solutions.Optimize our microservice ecosystem for performance, reliability, and observability.Advance our containerization and cloud migration strategy.Engage in architectural discussions and contribute to shaping technical decisions.For senior engineers: Lead architectural decisions and proactively identify areas for improvement.Write maintainable, well-tested code and conduct thorough code reviews.Participate in incident resolution and share in the team’s on-call rotation.Maintain comprehensive technical documentation, including ADRs, runbooks, and guidelines.Develop and share your domain expertise within the team.

Role Overview evolution is hiring a Senior Backend Engineer in Stockholm. This role focuses on designing and implementing backend systems that support the company's products. Collaboration with teams across disciplines is part of the daily work, with an emphasis on building applications that perform reliably at scale.

airapps is looking for a Backend Engineer to help build and support the server-side systems behind our products. This position is based in Stockholm and involves working closely with other teams to deliver new features and maintain reliable backend services. Role overview This role centers on developing and maintaining backend applications that support our solutions. The work involves both creating new features and ensuring existing systems remain stable and scalable. Collaboration Backend Engineers at airapps work with colleagues across different functions. Expect to partner with product, design, and frontend teams to define requirements and deliver updates that meet user needs. What you will do Develop and maintain server-side applications Work with others to design and implement new product features Focus on code quality and system scalability

Join Our Team at SanaSana is an innovative AI laboratory dedicated to creating superintelligent solutions for enhancing workplace productivity. We believe that organizations can achieve their goals more efficiently when teams access knowledge seamlessly, automate mundane tasks, and leverage the power of agentic AI for continuous learning. As a proud member of Workday, we are on a mission to develop AI that complements human capabilities rather than replacing them.Our vision is brought to life through our two flagship products. Sana Agents streamline access to your organization’s applications, knowledge, and data, allowing AI agents to perform meaningful work and enabling teams to process and act on information at an unparalleled scale. Sana Learn serves as an AI-driven learning platform, blending the ease of a modern educational tool with intelligent features like AI tutoring, automated content creation, and interactive applications, ensuring knowledge is not only accessible but also actionable.Our team is composed of highly skilled engineers and designers from top-tier companies such as Google, Spotify, Apple, and Databricks, all driven by a shared commitment to technical excellence and rapid iteration. Our tools currently empower over a million users to enhance their learning and work processes across hundreds of leading enterprises, and we are just getting started.About the RoleYou will play a pivotal role in developing and optimizing the core backend systems that support Sana’s Learn platform and search infrastructure. Your mission will be to redesign and scale these systems to efficiently handle enterprise-level workloads, eliminate bottlenecks, and evolve our architecture to meet the demands of the AI era.ResponsibilitiesTransform existing components to accommodate enterprise-scale workloads.Identify and address bottlenecks in storage, query performance, APIs, and data models.Lead the transition from outdated systems to sustainable, modern solutions.Enhance the reliability and efficiency of APIs.

Overview: We are on the lookout for talented Backend Product Engineers to join our team and shape the future of artificial intelligence. You will engage with our entire technology stack to develop features that will empower the next generation of creators and innovators.Why Join Lovable?At Lovable, we empower individuals to create software with simple, plain English. From solo entrepreneurs to Fortune 100 companies, millions have utilized Lovable to metamorphose raw ideas into tangible products swiftly. We are pioneering a revolutionary shift in software development, offering you a unique chance to redefine the digital landscape. Over 2 million users across 200+ countries leverage Lovable to launch businesses, tackle complex challenges, and realize their aspirations. And this is just the beginning.Our small, exceptionally skilled team is building a transformative company headquartered in Stockholm. We prioritize ownership, speed, and collaborative, low-ego teamwork. We are searching for individuals who are passionate, willing to challenge norms, and eager to create something impactful.What We Seek5+ years of experience in designing, building, and scaling backend systems for production-level productsProficient in Go, Rust, or other similar backend programming languages, with strong API design capabilitiesThorough understanding of distributed systems, scalability, reliability, and performance trade-offsDemonstrated experience in integrating with frontend and machine learning systems to deliver product featuresPossess strong product instincts, with the ability to balance rapid delivery with long-term sustainabilityYour ResponsibilitiesIn brief: Develop and empower the core of Lovable products, ensuring they are swift, reliable, and capable of supporting millions of users.Design, implement, and maintain backend services, APIs, and infrastructure componentsTake complete ownership of backend systems: architecture, implementation, deployment, monitoring, and iterationWork closely with frontend, machine learning, and product teams to turn ideas into robust, scalable featuresContribute to shaping our backend architecture, engineering culture, and technical strategyOur Technology StackWe utilize tools that both humans and AI appreciate:Frontend:...

Join Us at LegoraAt Legora, we are revolutionizing the legal industry by collaborating closely with legal professionals to create innovative solutions. Our AI-driven workspace not only enhances the speed of legal tasks but also empowers users to ask insightful questions and unlock valuable insights. Each day, we strive to push the limits of legal technology, transforming intricate processes into streamlined, efficient workflows. Our trusted partnerships with top global firms like Cleary Gottlieb, Goodwin, Bird & Bird, and Linklaters across 40 countries reflect our commitment to excellence.Joining Legora means becoming part of a team that believes in excellence and collaboration. If you are passionate about building innovative solutions from the ground up in a fast-paced environment, we invite you to be a part of this exciting journey.The OpportunityAs a Senior Backend Engineer, you will play a crucial role in designing, developing, and delivering outstanding products that assist legal professionals worldwide in their daily operations. You will have the autonomy to work across the entire technology stack and take full ownership of your contributions.This position is based in our Stockholm headquarters and requires in-office attendance five days a week, as we believe that collaboration in person yields the best results.Your ResponsibilitiesDesign and implement new features for our web platform.Take charge of our codebase, ensuring high-quality code, security, and rapid development cycles.Utilize a range of technologies including Node.js, Postgres, Elasticsearch, AWS, Azure, and Kubernetes.Conduct code reviews and mentor junior engineers to foster team growth and improvement.Promote continuous improvement initiatives and challenge the status quo within the team.Are you ready to shape the future of legal technology with us?

Join Vattenfall AB as an Agile Software Developer, where you will play a crucial role in developing innovative software solutions. Collaborate with cross-functional teams to design, implement, and maintain high-quality software applications that meet the needs of our customers.

WHO WE AREAt Trustly, we are pioneering a smarter, faster, and more secure financial landscape by transforming the payments sector. As a prominent figure in Open Banking Payments, we are setting the standard with Pay by Bank at checkout, delivering unmatched convenience, speed, and freedom for millions of consumers and merchants globally.Our Vision: To establish the world's most innovative payment network and reshape the payment experience.Trustly is a diverse team of innovators, collaborators, and achievers. If you are motivated by a strong purpose and thrive in a fast-paced, entrepreneurial, and rapidly growing environment, we invite you to join us and be part of a team that is redefining the global payment landscape.About the TeamOur Product & Technology organization is at the forefront of developing Trustly’s offerings. Our teams work collaboratively on innovative concepts, product development, and strategic vision. The Product & Tech department comprises around 180 talented individuals.About the RoleWe are seeking to enhance our team responsible for our core backend services by hiring experienced Software Engineers proficient in Java and Golang.

About SanaSana is an innovative AI laboratory dedicated to creating superintelligence solutions for the workplace. We believe that organizations can achieve their goals more efficiently when teams have seamless access to knowledge, can automate repetitive tasks, and have the ability to learn anything through agentic AI. As a subsidiary of Workday, our mission is to develop AI that enhances human capabilities rather than replacing them.Our vision is realized through two flagship products: Sana Agents and Sana Learn. Sana Agents provide a streamlined interface to access all company applications, knowledge bases, and data, empowering AI agents to perform meaningful work and enabling teams to process and act on information at an unprecedented scale. Sana Learn is an AI-driven learning platform that fuses the ease of modern learning environments with intelligent features such as an AI tutor, automated content creation, and interactive applications, transforming knowledge into actionable insights.We are a team of highly skilled engineers and designers from top-tier companies like Google, Spotify, Apple, and Databricks, all driven by a passion for technical excellence and rapid innovation. Our tools already support over a million users to enhance their learning and work efficiency across hundreds of leading enterprises, and we are just getting started.About the RoleAs a Backend Engineer, you will be instrumental in building and enhancing the core services that power our agents and product features, focusing on enterprise-scale workloads, performance optimization, and sustainable architecture. You will lead the architecture and system design to ensure our platform can accommodate high data volumes, diverse entities, and meet the demands of enterprise clients.Key ResponsibilitiesDesign and decompose services and APIs for scalability and clarity.Develop eventing and queue systems for reliable, high-throughput data flows.Oversee schema evolution, migrations, query/index optimization, and caching strategies.Establish and enforce consistency models and multi-region readiness.Optimize for performance budgets and privacy/tenant isolation.Work hands-on with TypeScript/Node, Postgres, and distributed systems.Success MetricsCore services are dependable, scalable, and easily adaptable.Potential risks are identified and mitigated proactively.APIs are clear, well-documented, and facilitate seamless product experiences.

Role overview AFRY is seeking a Software Developer focused on the defense industry in Stockholm. This role involves building software solutions that support national security efforts. Work closely with a skilled team to design and develop applications that align with strict industry requirements.

airapps is looking for a Software Architect in Stockholm to help shape the direction of its software platforms. This position centers on designing solutions that support business growth and long-term stability. Role overview As a Software Architect, you will work closely with teams from different disciplines to create applications that can grow with the company’s needs. The focus is on scalable design and maintaining consistency with the organization’s technical strategy. Collaboration This role involves regular interaction with engineers, product managers, and other stakeholders. Clear communication and teamwork are essential to keep projects aligned with architectural goals.

At Kognity, we believe education has the power to transform lives. However, technology has yet to fulfill its promise for over a billion students worldwide. Our mission is to change that.As a dynamic EdTech scale-up with a team of 125, we are transforming learning experiences in over 120 countries. Our innovative platform replaces traditional textbooks by integrating engaging pedagogy with advanced AI and data analytics, empowering both students and teachers in various educational settings, from international institutions to U.S. high schools.Why join Kognity?Make an Impact – Your contributions will significantly affect the educational journeys of teachers and students across the globe, ensuring real-world outcomes.Ownership and Accountability – We value initiative and expect you to take ownership of your projects from inception to delivery, with a focus on results.Collaborate with Top Talent – You will work alongside passionate and intelligent colleagues to tackle complex challenges, in a high-paced environment.Foster Continuous Learning – We encourage personal and professional growth, with a focus on learning and improvement.Your Responsibilities:Develop and deploy full-stack features using Python and TypeScript, enhancing the user experience for teachers and students.Design and refine robust systems with an emphasis on best practices, including APIs, ORMs, caching, and testing, ensuring high performance and reliability.Continuously improve the codebase by simplifying and fortifying it, while elevating engineering standards.Manage problem domains comprehensively, from defining the technical strategy to delivering high-quality software promptly.Qualifications We Seek:Demonstrated experience in building impactful software within a fast-paced product environment.Proficiency in full-stack development with TypeScript and at least one server-side language such as Python, Ruby, or Node.js.Strong history of owning projects from conception to execution, demonstrating technical and strategic prowess.

airapps is looking for a Mobile Software Architect in Stockholm. This position shapes the direction of mobile application development and works closely with teams across the company. Role overview The Mobile Software Architect guides the design and implementation of mobile solutions. The job centers on setting architectural standards for mobile platforms, focusing on scalability, efficiency, and usability. Collaboration This role involves working with cross-functional teams to bring new ideas to life and ensure technical decisions align with business goals. Input and leadership on mobile architecture will influence both current projects and long-term strategy. Key focus areas Setting architectural direction for mobile platforms Designing and implementing mobile solutions Ensuring scalability, efficiency, and user experience

Evolution is looking for a Software Engineer to join the team in Stockholm. This position centers on building and improving gaming platforms, with an emphasis on developing reliable software and collaborating across teams. Key responsibilities Develop software to support and enhance gaming products Work closely with engineers, designers, and other specialists from different teams Take part in designing, implementing, and maintaining software systems Requirements Proven experience in software development Interest in tackling challenging projects Comfort working within a team Motivation to learn and adapt to new technologies Location This role is based in Stockholm.

Translate requirements into technical designs that guide development.Build robust C# client applications, including WPF and Windows services.Create C# web solutions leveraging Cloud technologies, ASP.NET, and MVC frameworks.Collaborate effectively as an integral member of an agile team.Develop unit tests and assist in the T&V process to define test cases within an agile environment.

Join Tietoevry, a leader in high-expertise product development, as an Android Framework Developer. In this role, you will collaborate with top-tier automotive and SmartTV clients, working on cutting-edge software and hardware solutions. You'll be immersed in the latest technologies, focusing on hypervisor-based solutions for modern vehicles. Your daily tasks will include bringing up new hardware for Android Automotive/Android TV, designing and developing customer features, integrating applications, participating in the Google certification process, and engaging with both internal and external stakeholders.