fullstack developer

Comunidad de Madrid

Madrid, Spain

5 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience required

4 years minimum

Working hours

Regular working hours

Job source

www.jobleads.com

Tech stack

Java (Programming Language) Application Programming Interfaces (APIs) Amazon Web Services Code Review Databases Relational Databases DevOps Document-Oriented Databases Virtual Private Networks (VPN) PostgreSQL Apache Maven MongoDB

+9 more

Networking Basics OpenID Scrum Methodology Data Streaming Okta Apache Yarn ReactJS Backend Front End Software Development

Job description

We’re looking for a mid-to-senior fullstack developer to help build and evolve this platform end to end - from the Java/Spring backend services to the React-based frontend - while working closely with the teams responsible for third-party integrations, platform infrastructure, and the wider product.

What You’ll Do

Design, build, and maintain features across the platform’s stack, spanning multiple regional environments
Develop backend services in Java 17 with Maven, and frontend components in React with Yarn
Work with PostgreSQL and MongoDB (Atlas Database) to model, query, and optimise account and document data
Integrate with regional identity providers (Keycloak) for authentication, and with internal data and document-archive services for account and document data
Contribute to the work needed for integration with a third-party back-office platform, including required user-management functionality, and support both pull and push data flows
Write clean, tested, well-documented code, and take part actively in code reviews
Collaborate with Product, QA, and DevOps within an agile setup - sprint planning, refinement, and retros
Help troubleshoot issues across the stack, including occasional 2nd-line support and root-cause analysis
Contribute to CI/CD pipelines and deployments on AWS
Help keep the portal scalable, modular, and brandable as new clients and integrations come on board

Requirements

4-7 years of professional experience as a fullstack developer
Hands-on backend experience with Java 17 and Maven
Hands-on frontend experience with React and Yarn
Practical experience with both a relational database (PostgreSQL) and a document database (MongoDB)
Comfortable working across the stack and owning a feature from API to UI
Good communication skills and comfort working with distributed, cross-functional teams
A pragmatic, quality-conscious approach to code, testing, and documentation

Nice to Have

Experience with AWS (ECS, Secrets Manager, VPN/networking basics)
Familiarity with SSO/OIDC and Keycloak
Exposure to B2B SaaS platforms, client portals, or back-office integration domains