OverviewIn this role you will own features end-to-end across the stack, from database and backend services to the UI.
You'll collaborate with designers, PMs and engineers to ship iterative features, focused on maintainability and scalability.
You'll strengthen observability, testing, and operations while balancing legacy and modern tech.
You'll shape the product with data-driven decisions and actively contribute to engineering guilds and cross-team initiatives.
This is a hands-on, impact-driven position at a scalable SaaS platform used across Europe, with a strong emphasis on UX and system quality.
Compensaciones / Beneficios28-days holiday
bank holidays
monthly vouchers
remote work
mental health support
equal opportunities
ResponsabilidadesOwn features end-to-end across the stack (DB schema, backend, UI) from design to deployment and operations
Pair with engineers, designers, and PMs to ship features and iterate based on usage
Participate in design and code discussions, making trade-offs affecting product and team
Maintain automated testing across unit, integration, and end-to-end levels
Improve observability with metrics, dashboards, and alerts using tools like Datadog, Sentry, and web vitals
Design and build backend services and APIs in Java and Spring Boot,



including event-driven flows with RabbitMQ
Take ownership of services with a DevOps mindset from architecture to deployment and operations
Validate ideas with data by instrumenting work and measuring impact to guide scaling
Be an active member of the Engineering Guild to share ideas and tackle cross-team challenges
Lead technical discussions on trade-offs in features, architecture, and UX
Navigate a hybrid codebase balancing legacy Backbone with modern React/TypeScript
Build internal tools to help operations and support teams move fast without risk
Requisitos principales7+ years of software development experience
Strong focus on modern web frontend and hands-on backend services
Own features end-to-end with responsibility for code and areas owned
Product mindset with user-centric thinking
Data-driven with instrumentation and evidence-based decision making
Comfort with ambiguity in complex domains
Excellent English communication skills and ability to explain complex ideas
Experience working with remote and co-located teams
Willingness to leverage AI tools in daily development workflow
collaborative
strong communication
proactive problem-solving
React, TypeScript
Java, Spring Boot
RabbitMQ

📌 Senior Full Stack Engineer (España)
🏢 Treatwell
📍 España