This Full time on site position offers great opportunities for career growth. Your mission We are looking for a Tech Lead for our multi-tenant B2B SaaS platform, used by HR teams and by employees across the organisations we work with. Lead technical analysis and design for new projects: explore options with the team and drive them to a clear decision.
Own quality and engineering practice: test strategy, quality gates, CI/CD, code review standards and technical documentation.
Own production incident response, monitoring, performance and our Azure setup.
Propose improvements to the product and to how we build it, including our adoption of AI.
How we work AI tools support our developers in their day‑to‑day work and are integrated into how we build software. Keeping that setup growing is part of the team’s work, and in this role you will help lead it. If you are excited about AI and where it is heading, you will have room to run with it.
Location Fully remote within Spain or hybrid in Santander or Barcelona, whichever suits you.
Bachelor’s or master’s degree in Computer Science or a comparable qualification
Professional experience building and operating production web applications end to end, including time leading technically (typically 8+ years)
NET and Entity Framework skills, with solid SQL Server experience, including query performance work and data modelling
Extensive experience with a modern component‑based front‑end framework. depth in React, Vue or Svelte is equally acceptable
Architectural decision‑making: service boundaries, data modelling, API design,



and documenting trade‑offs so decisions can be revisited
Demonstrated command of clean code, SOLID and testing methodology, and the ability to set test strategy and code review standards for a team
Comfort working with AI coding agents, and the discipline to review their output critically
Fluent English and Spanish
Hands‑on Azure (App Service, Azure SQL, Key Vault, Redis) and infrastructure as code with Terraform
CI/CD and release engineering: pipelines, quality gates, feature flags, rollback, and coordinating database with code changes
Azure DevOps (repos, pipelines)
Tech stack
.RabbitMQ
Azure (App Service, Managed Redis, Azure OpenAI, Key Vault, Storage)
Terraform
Playwright and xUnit
Full‑time contract in a growing, international scale‑up
~ Fully remote within Spain or hybrid in Santander or Barcelona, whichever suits you
~ Versátil hours, Fridays until 3 pm and reduced summer hours
~25 holidays plus 2 additional
~ One additional week of salary or holiday per three years with us
~ Career Path & Learning budget
~ About us atwork is a B2B SaaS scale‑up on a mission to make HR a strategic business driver. 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.
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