Senior Full-Stack Developer – SaaS Platform with AI Tools (Remote)

atwork corporate Ag; Barcelona; Presencial; EUR 60.000 - 85.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Flexible hours

Fridays until 3 pm and reduced summer‑

25 holidays plus 2 additional

Personal Time Off days

One extra week of salary/holiday per 3

Career Path & Learning budget

Cobee & Wellhub

Team events with two on-location weeks

Descripción de la vacante

atwork corporate Ag is hiring a Senior Developer to own and evolve our multi-tenant B2B SaaS platform used by HR teams and employees across customers. You will combine hands-on development with architectural decisions and code reviews, owning the areas you work on.

Location can be fully remote within Spain or hybrid in Santander or Barcelona. You will collaborate with product, data science and design in an AI‑enabled environment, with opportunities to influence architecture, testing, and CI/CD.

Formación

• Bachelor’s or master’s degree in Computer Science or a comparable qualification.
• 5+ years of professional experience building and operating production web applications end to end.
• Strong .NET and Entity Framework skills, with solid SQL Server experience.
• Extensive Angular experience.
• Proficiency with Git and a pull-request-based workflow.
• Experience working with AI coding agents and reviewing their output.
• Fluent English and Spanish.
• Nice to have: Multi-tenant SaaS architecture and tenant isolation experience.
• Nice to have: Infrastructure as code (Terraform) and hands-on Azure (App Service, Azure SQL, Redis).
• Nice to have: Azure DevOps (repos, pipelines).
• Nice to have: A product-oriented mindset and experience working closely with Product Owners.

Responsabilidades

• Develop across the stack: .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.
• Maintain technical documentation: architecture decisions, runbooks and onboarding material.
• Work in an agile environment, collaborating with product, data science and design.

Conocimientos

.NET

Angular

Git & PR workflow

Clean code & SOLID

AI-assisted coding

English

Spanish

Educación

Bachelor's or Master's in Computer Science or comparable

Herramientas

Terraform

Playwright

xUnit

Azure DevOps

Claude Code

Descripción del empleo

atwork corporate Ag is hiring a Senior Developer to own and evolve our multi-tenant B2B SaaS platform used by HR teams and employees across customers. You will combine hands-on development with architectural decisions and code reviews, owning the areas you work on.

Location can be fully remote within Spain or hybrid in Santander or Barcelona. You will collaborate with product, data science and design in an AI‑enabled environment, with opportunities to influence architecture, testing, and CI/CD.