We are looking for a Full Stack Product Engineer to help build and evolve the user-facing product functionality used to configure, manage, and monitor integrations and connected business workflows.
This is a TypeScript-first full stack role working across both frontend and backend development. The primary technologies are Angular on the frontend and NestJS on the backend.
The role is currently somewhat frontend-heavy due to ongoing modernisation work, but the intended long-term balance is full stack ownership across frontend and backend concerns.
This is not a pure visual frontend role, nor a backend-only platform role. You will work on product functionality end-to-end: user interfaces, application logic, backend services, API integration, maintainability, and product behaviour.
You will join a small, pragmatic engineering team where engineers are expected to take ownership, communicate clearly, collaborate across locations, and help shape practical solutions.
Key Responsibilities
* Develop and maintain product functionality for configuring, managing, and monitoring integration workflows.
* Build and improve Angular frontend features, application flows, and user-facing product behaviour.
* Develop and maintain backend services and APIs using NestJS and TypeScript.
* Work across frontend and backend boundaries to deliver features end-to-end.
* Help modernise legacy code and reduce technical debt while continuing to deliver product functionality.
* Improve maintainability, scalability, and developer experience in the codebase.
* Debug and troubleshoot product behaviour across frontend, backend, and API boundaries.
* Collaborate with a small engineering team to clarify requirements, make tradeoffs, and shape solutions.
* Contribute to pragmatic engineering standards, architecture discussions, and development workflows
* Use modern development tooling, including AI-assisted tools where useful and appropriate.
Candidate Profile
Required Qualifications
* Professional experience with TypeScript.
* Experience building frontend applications with Angular.
* Experience building backend services or APIs using NestJS or similar Node.Js frameworks.
* Comfortable working across frontend and backend concerns in a full stack environment.
* Practical understanding of APIs, data flow, validation, and product-facing service logic.
* Good understanding of REST APIs.
* Familiarity with JSON; XML. Familiarity is helpful given the integration domain.
* Ability to build maintainable, readable, and scalable application code.
* Product-minded engineering approach, with attention to user workflows and usability.
* Ability to collaborate effectively in a small team and communicate clearly across locations.
* Good English communication skills, with willingness to continue improving toward a fully professional level
* Based in the Barcelona area and willing to commute to the office in Barcelona
* Must have the legal right to live and work in Spain, preferably on a permanent basis
Preferred Qualifications
* Experience with Nx in a monorepo environment.
* Experience with TypeORM or similar ORM libraries.
* Experience with Java using Spring Framework
* Experience working with GitLab and GitLab CI/CD pipelines.
* Experience with component-based frontend architecture.
* Experience contributing to frontend modernisation or refactoring initiatives.
* Experience working on product functionality involving workflows, configuration, monitoring, or connected systems.
* Familiarity with observability, logging, debugging, and production support for product-facing applications.
* Experience in a startup, scale-up, or small-team engineering environment.
* Comfortable using AI-assisted development tools responsibly as part of a modern engineering workflow.
Behavioural Competencies
* Product-minded and ownership-driven.
* Pragmatic in balancing delivery speed, maintainability, and technical quality.
* Comfortable working across frontend, backend, and product concerns.
* Collaborative and communicative, especially in a small distributed team.
* Able to clarify requirements, identify gaps, and propose practical solutions.
* Motivated to improve existing systems rather than only build new features.
* Comfortable wearing multiple hats in a growing engineering organisation.
* Quality-minded without being rigid or overly process-dependent.
* Interested in integration-oriented product problems and connected business workflows.
What We Offer
* Competitive salary
* Private health insurance
* Career development program, including access to learning resources such as Udemy courses
* The opportunity to work on a real product platform with meaningful full stack and product-engineering challenges
* Exposure to product engineering themes such as observability, platform evolution, and AI-enabled product development
* A collaborative engineering environment with room to learn and grow
Development Opportunity
This role offers the opportunity to build hands-on experience in full stack engineering, frontend platform development, product-facing services, observability, and AI-enabled product evolution. The successful candidate will contribute to the future development of the Maicell platform while growing toward broader technical and product-engineering responsibilities over time.
Potential future growth paths may include:
* Senior Full Stack Engineer
* Frontend Platform Engineer
* Product Engineer
* Backend Developer
* Solution Architect