Senior Software Engineer

October 30, 2026

Hybrid

Senior

Barcelona

Indeed

Keep in mind

Original vacancy is in Spanish
You will likely need Spanish for the job. The employer can confirm

Also worth knowing

English is required

Description

Senior frontend-focused software engineer for a long-term international project building modern web applications with React, Go and TypeScript. The role carries ownership of solutions from implementation to production deployment, plus contribution to technical decisions, engineering best practices and continuous product improvement. Strong emphasis on quality, scalability, maintainability, security and performance within a multidisciplinary engineering team.

Responsibilities

Design, develop and maintain modern frontend applications using React and TypeScript
Deliver robust, scalable and maintainable user-oriented features
Translate business and product requirements into technical solutions
Build complex user interfaces, workflows, forms and integrations with backend services
Implement secure authentication and authorization mechanisms
Design reusable components and frontend architecture patterns
Contribute to technical design discussions and architectural decisions
Ensure software quality through testing, code reviews and engineering best practices
Work closely with Product, UX/UI, Backend and QA teams to deliver high-quality user experiences
Support application deployment, monitoring and continuous improvement initiatives
Champion best practices in performance, security, accessibility and maintainability

Requirements

10+ years of professional experience in software development environments
5+ years of professional experience developing web applications with React
2+ years of professional experience developing applications with Go (Golang)
Extensive hands-on experience with TypeScript
Professional working proficiency in English communication
Strong knowledge of React hooks, component composition and reusable architecture patterns
Experience building complex frontend applications with rich interactions, forms, validations and enterprise workflows
Experience integrating and consuming REST APIs
Strong knowledge of state management patterns and modern frontend architectures
Experience with Redux Toolkit, Zustand, React Context, Recoil, TanStack Query or similar solutions
Strong knowledge of frontend security, authentication and authorization concepts
Experience designing and maintaining automated tests using modern frontend testing frameworks
Experience with Vitest, React Testing Library, Happy DOM, Playwright or similar tools
Hands-on experience with Docker and Kubernetes
Strong commitment to software quality, maintainability and engineering excellence

Conditions

Hybrid and flexible remote work model
Flexible compensation plan (childcare, health insurance, meal card or food allowance, transport, training)
24 vacation days plus 2 personal days plus December 24 and 31, with option to buy up to 7 extra days
FlexAbroad: possibility to work remotely from another country for 45 days
Continuous training with certification opportunities via virtual campuses in GenAI, Cloud and Data
Free access to Udemy, Pluralsight, Harvard Manager Mentor and Education First
Wellbeing hub with physical and mental health policies
Environment valuing trust and autonomy
Volunteering and social action initiatives with sustainability, inclusion and equality groups
Access to talks, masterclasses, demos and innovation challenges