API Developer – .NET (Valencia)

Avaron AB

About the Company At Avaron, you get the security of permanent employment combined with the variety of working at different customers. We place specialists across everything from tech, IT and industry to project management and business support – and whatever the assignment, you have a consultant manager who is there for you and your development. About the Role You will join a team developing modern industrial software in a global technology environment where the solutions are used by both internal and external users worldwide. The focus of the role is to help evolve a toolbox for automation and connectivity, together with a collaborative Scrum team that works closely with other development teams and continuously improves both its products and its way of working. This role suits you if you enjoy working across the full stack, with a clear emphasis on frontend development in React while also contributing to backend development in .NET. You will work in an environment that values modern engineering practices, close collaboration, and continuous improvement. It is a great opportunity to build software with real global impact while influencing both technical solutions and everyday development practices. Job DescriptionYou will develop next-generation industrial software solutions using React and .NET. You will design, build, and maintain modern web applications with a strong frontend focus. You will create and evolve REST APIs using ASP.NET Web API. You will develop and maintain backend services that support scalable and reliable applications. You will work with SQL Server and Entity Framework for data access and persistence. You will contribute in a Scrum team using modern software engineering practices. You will work in a CI/CD setup with automated testing and deployments. You will collaborate closely with developers, architects, and other stakeholders. You will help drive continuous improvement, code quality, and knowledge sharing within the team. RequirementsMinimum 5 years of professional experience as a Software Developer. Strong experience developing applications using .NET and React. Experience building REST APIs using ASP.NET Web API. Experience with TypeScript and/or JavaScript. Experience working with SQL Server and Entity Framework. Experience with Docker and Git. Experience working in Agile Scrum teams. Experience working with CI/CD and automated testing. Professional proficiency in English, both written and spoken. Strong knowledge of HTML/CSS. Nice to haveExperience with Azure DevOps and Azure DevOps Pipelines. Experience with Vite, Tailwind CSS, or Module Federation. Experience with OAuth or Active Directory. Experience with SQL Server Analysis Services. Experience with IIS. Experience with WPF or WinForms. What We OfferPermanent employment at Avaron AB Occupational pension Wellness allowance of SEK 5,000 per year Application Selections are made on an ongoing basis – apply as soon as you can.

Rebtel Networks AB

Global migration is a 21st-century reality. Whether people are fleeing from something or racing towards better opportunity, following love or seeking new experiences, more and more are living in different environments and in new ways. We celebrate the power of people coming together. That’s why we connect ambitious people abroad with their families and friends back home so they can support each other emotionally and financially, and lead more enriched lives. Why Rebtel? At Rebtel, we build complex, high-performing applications that power global communication. Our backend development is structured yet flexible—an environment where agility, creativity, and technical excellence are not just encouraged but expected. We maintain an agile workflow, prioritize clean, maintainable code through regular refactoring, and champion knowledge-sharing through code reviews. If you're looking for challenging problems that will stretch your skills and ignite your creativity, you’ll feel right at home. About you As a Senior .NET Developer who not only loves solving complex problems but is passionate about code quality, and building scalable and testable solutions. You’ll be adequately self going, contribute to technical discussions, and aspire to deliver clean, robust code. You have a sharp eye for simplicity amidst complexity and pride yourself on thorough, thoughtful development—including writing tests for critical components. Whether working closely within your team or leading a project area independently, you’re confident, collaborative, and proactive. Requirements: Expertise in .NET Core, .NET Framework, and related technologies (e.g., ASP.NET) Strong knowledge of both SQL (MSSQL) and document-oriented databases like MongoDB Hands-on experience with DevOps practices and deployment tools (Git, Azure DevOps) Practical knowledge of containerization using Kubernetes Experience integrating with GraphQL and REST APIs Excellent communication skills in English We don’t evaluate skills by number, however we believe ideally you should have worked at least 7+ years to gain the right seniority Passionate about writing clean, structured, and testable code Puts really high weight on test coverage of their code Elevates the performance and mindset of the team around them Naturally curious, loves experimenting with new technologies Strategic vision for product and codebase growth Our Offer To You At Rebtel, you are the most important asset and we strive to provide a comprehensive package of benefits and perks that enhance your well-being and work experience. Here are some of the things you can expect from us: Pension Plan Health Checkups, Influenza shots and Private Medical Insurance Occupational insurance Wellness allowance (5,000 SEK) Discount on gym memberships Bonus program Extra parental pay 30 days annual vacation Monday breakfasts, dinner if staying in the office past regular working hours Relocation Support, if you're joining us from afar, we'll assist you in making a smooth transition. Rebtel is an international workplace, and at the office, we speak English; therefore, high English proficiency is required. We are Rebtel. We come from all around the world to create products for anyone who has crossed a border. We believe in equal opportunity and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Cyberway AB

About the job At Cyberway, we believe that technology can make everyday life simpler, smarter, and more sustainable – for businesses, organizations, and people. That’s why we create solutions that truly make a difference. We combine deep technical expertise with strategic insight, always aiming to transform complex digital challenges into clear, scalable, and future-proof results. We believe in more than just code – we believe in people. It’s the passion, skills, and collaboration of individuals that drive real change. Whether it’s system development, data analysis, UI/UX, infrastructure, or delivery models such as nearshore and team as a service, we build success through experience, innovation, and action – with the right people at the core. Do you want to be part of shaping the future with us? Are we the right fit for you? We are now looking for an engineer who wants to join our journey. With us, you’ll have the opportunity to work with modern technologies, exciting clients, and projects that make a real impact. The role is diverse – sometimes you’ll work independently, sometimes in teams, always in close dialogue with both customers and colleagues. We believe you have a background that makes you confident in your skills, while also being curious to develop new ones. Most importantly, you want to contribute to building the Cyberway culture together with us. We are looking for someone with: ·5+ years experience with ASP.NET Core in building modern, high-throughput APIs Strong focus on API-first development, with emphasis on clarity, performance, and long-term maintainability Solid understanding of resilient and scalable distributed systems Experience working with cloud-native architecture Ability to design clean, modular code structures based on real-world business processes and rules Tech stack Primary Language: C# (.NET 9 and later) Cloud: Microsoft Azure Architecture: Domain-Driven Design (DDD), Event-Driven Architecture (EDA), Event Sourcing Patterns: RESTful APIs, Hypermedia (HATEOAS), Event Publishing Monitoring: OpenTelemetry, structured logging, distributed tracing We offer you: Exciting and challenging assignments where you make a difference A work environment built on transparency, trust, and openness Flexibility to work as a subcontractor or as an employee – we support you in building the career path that suits you best The opportunity to influence both your own development and Cyberway’s future A culture where innovation, people, and action go hand in hand "The distance between a dream and reality is action. Cyberway is the action." Do you want to help shape the future together with us? Please send your CV to jobb@cyberway.se We review applications continuously — apply as soon as you can! Note: This recruitment is handled solely by Cyberway AB, We politely but firmly decline all calls from recruitment and any kind of marketing companies regarding this position.