Fullstack Engineer

Capitole Consulting
Municipality of Valladolid, Spain
yesterday

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English

Job location

Municipality of Valladolid, Spain

Tech stack

JavaScript
API
Amazon Web Services (AWS)
Computing Platforms
Github
Scrum
Data Streaming
Systems Architecture
Systems Integration
TypeScript
Data Processing
React
AWS Lambda
Backend
Material Design
Kubernetes
Front End Software Development
REST

Job description

Capitole Consulting keeps growing - and we want to do it with you! Are you a Fullstack Engineer (Frontend-oriented) with strong experience in React, TypeScript, and AWS? Looking for a role where you can contribute to a Developer Portal in a global enterprise environment, working with modern frontend architectures, APIs, and Backstage integrations? If your answer is yes, this could be your next challenge. Why join Capitole? People come first: we believe in a human-centered model where your well-being and development are at the core. Work on impactful international projects within complex enterprise IT environments. Be part of the evolution of a Developer Portal used as a central entry point for developers. Collaborate with cross-functional and international teams. Real ownership of frontend components, integrations, and platform evolution. The opportunity We are looking for a Fullstack Engineer (Frontend-oriented) to support and evolve a Developer Portal within a large-scale enterprise ecosystem. You will focus mainly on frontend development with React, while also contributing to backend integrations, APIs, and platform architecture. Key Responsibilities

  • Develop and enhance React-based UI components

  • Build and maintain Backstage plugins

  • Implement integration logic (REST APIs, external systems)

  • Contribute to backend interactions and data flows

  • Collaborate with UX teams on user experience improvements

  • Support architecture and scalability initiatives

  • Work closely with stakeholders across multiple teams

  • Participate in agile ceremonies (Scrum/Kanban), If this sounds like you, wed love to meet you! Security & Compliance

  • Access to confidential information related to Capitole and the project

  • Compliance with internal and client security policies required

Requirements

Key Requirements (Must Have)

  • Strong experience with React, TypeScript, and JavaScript

  • Solid experience with AWS (mandatory)

  • Experience working as a Fullstack or Frontend Engineer in enterprise environments

  • Hands-on experience with REST APIs and asynchronous data processing

  • Understanding of system architecture and integration patterns

  • Experience with GitHub and developer ecosystems

  • Strong UI/UX awareness and component-based design

  • English B2+/C1 (mandatory) Nice to have

  • Experience with Backstage plugin development

  • Experience with Kubernetes and AWS Lambdas

  • Experience with developer portals or platform engineering

  • Exposure to large enterprise ecosystems

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