atwork · Full-time · Remote Based in Spain
We are looking for a Full Stack Developer to work on our multi-tenant B2B SaaS platform, used by HR teams and by employees across the organisations we work with. NET 10 and Entity Framework on the back end, Angular 21 on the front end, Azure SQL Database for persistence.
Participate in architectural decisions: service boundaries, data modelling, tenant isolation and API design.
Work on multi-tenancy, platform performance, our design system and integrations with third-party systems.
Review code before it is merged.
Write automated tests: unit and integration tests on the back end, Playwright UI tests on the front end.
Contribute to the management of our Azure environment and to infrastructure defined as code with Terraform.
Work in an agile environment, collaborating with product, data science and design.
AI tools support our developers in their day-to-day work and are integrated into how we build software. If you are excited about AI and where it is heading, you will have room to run with it.
Bachelor's or master's degree in Computer Science or a comparable qualification
Substantial professional experience building and operating production web applications end to end (typically 5+ years)




NET and Entity Framework skills, with solid SQL Server experience
Extensive Angular experience
Demonstrated command of clean code, SOLID principles and testing methodology, with the ability to explain why, not only apply the rule
Experience working with AI coding agents and reviewing their output
Fluent English and Spanish
Infrastructure as code (Terraform) and hands-on Azure (App Service, Azure SQL, Redis)
Full-time contract in a growing, international scale-up
Fully remote within Spain or hybrid in Santander or Barcelona, whichever suits you
Adaptable hours, Fridays until 3 pm and reduced summer hours
One additional week of salary or holiday per three years with us
Career Path & Learning budget
Powered by our proprietary "AI Middle Layer", atwork connects employee feedback, selected HR data, and business KPIs in a single platform, giving HR teams the power to act on feedback with predicted, quantified business impact, grounded in scientific precision.
We're a diverse, remote-first team of psychologists, data scientists, and engineers spread across Switzerland, Germany, and Spain.

📌 Full Stack Developer- IMMEDIATE START (Zaragoza)
🏢 Atwork
📍 Zaragoza