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React Senior Developer

Hybrid in Las Rozas·Added 6 months ago (last checked 6 Nov)

knowmad mood

339 open roles

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Our summary

Hours: Jornada intensiva in summer
Work mode: Hybrid, Las Rozas
Contract: Permanent
Spanish: Expected (ad in Spanish)
Experience: 5+ years
Benefits: Private health insurance, flexible pay plan, meal vouchers

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Skills

This job advert was originally written in Spanish.

Pay & benefits

What you'll get

And with us, you will enjoy:

✅Permanent contract

✅ 2 Days On-site Madrid + 3 REMOTE

✅In-house training and access to certifications ♻Check out our calendar here:

https://www.knowmadmood.com/es/talento/formacion

✅Flexible compensation plan (health insurance, transport, childcare vouchers, restaurant cards)

✅Brand ambassador program through our referral plan

Refer your friends and earn extra rewards!

✅Events, meetups, techdays, talks... and much more!

✅ 26 days of annual leave (22 vacation days, 2 personal days, and 24 and 31 December as company holidays by default)

✅ Working hours: 8:30 to 18:00 (Monday to Thursday) and 8:00 to 15:00 on Fridays, with an intensive summer schedule from July to August from 8:00 to 15:00.

The role

What you'll do

Design, develop, and maintain user interfaces using React, Next.js, and TypeScript.
Participate in technical analysis sessions and refinements to define solutions aligned with business requirements.
Work side by side with backend, UX/UI, and product teams, both in the definition phase as well as in day-to-day development.
Ensure that technical decisions are well-founded and contribute to the stability and sustainability of the projects.
Implement and execute tests with Vitest and React Testing Library to guarantee the quality, stability, and robustness of the delivered code.
Participate in code reviews, ensuring compliance with best practices and technical standards of the team.
Create new interfaces from scratch, as well as maintain, refactor, and customize components rates.
Document code, processes, and technical decisions clearly and effectively, facilitating knowledge transfer within the team.
Perform the work autonomously, providing well-founded solutions and showing responsibility in decision-making.

What do we value?

Solid experience of at least 5 years developing with React, Next.js, TypeScript and handling APIs.
Advanced knowledge in testing with Vitest and React Testing Library.
Previous experience working with agile methodologies (Scrum/Kanban).
Knowledge in hybrid application development.
Stack

o Good foundation in JS and React

o Typescript

o Design patterns

o Use of best practices

o Monorepo architecture

o Experience with native applications or environments at the development and Store publication level o Atomic Design o Integration with third parties and APIs o CI/CD

Frameworks

o Nextjs

o Headless CMS (Strapi)

o Vitest

Libraries

o React-query (Tanstack)

o Styled-components (Vanilla-extract)

o React-hook-form

o Rechart

o React-testing-library

o Playwright

o Storybook

o Capacitorjs

Testing

o Unit Tests (React-testing-library)

o Acceptance Tests (Playwright)

o E2E Tests (Playwright)

About knowmad mood

knowmad mood is an IT consulting and technology services company based in Madrid, Spain, specializing in digital transformation, cloud infrastructure, data engineering, cybersecurity, and enterprise software development. With a strong focus on emerging technologies like AI, automation, and DevOps, the company serves clients across sectors including insurance, retail, and manufacturing, offering both project-based consulting and managed services. They operate with a distributed team model, supporting remote and hybrid work across Spain.

For international professionals, knowmad mood offers a dynamic and flexible work environment with many roles available as 100% remote or hybrid positions across Spain, including in Madrid, Barcelona, and Palma de Mallorca. The company emphasizes continuous learning and innovation, making it an attractive option for tech talent looking to work on modern stacks like Java, Kubernetes, Azure, GCP, and AI platforms. While the company is Spanish-founded, its client base and project scope often require English proficiency, providing opportunities for non-Spanish speakers to integrate.

Industry: IT Consulting
Founded: 2010
Employees: 500–1,000
Headquarters: Madrid, Spain
In Spain: Madrid, Barcelona, Palma de Mallorca

Good to know if you are moving

Many roles are offered as 100% remote within Spain, providing flexibility for international hires to live anywhere in the country.
The company has offices in Madrid, Barcelona, and Palma de Mallorca, offering options for hybrid work in major Spanish cities.
English proficiency is required for many positions, making it accessible for non-Spanish speakers.
knowmad mood focuses on modern technologies like Java, Kubernetes, Azure, GCP, and AI, offering opportunities to work on cutting-edge projects.
The company supports professional development with a strong emphasis on certifications and continuous learning.

In their own words

About the company & team

We are knowmad mood!

We are a leading company in digital transformation, constantly evolving and at the forefront of technology. We were born to drive real change through innovation and sustainable development, with the mission of delivering value to our clients and empowering our talent.

Made up of more than 3,000 creative, digital, and innovative people connected by a shared purpose and capable of building connections with people around the world. A responsible, flexible team with a high capacity to adapt to the needs of our clients and the market, while delivering value, vision, creativity, expertise, professionalism, and passion for technology in every project.

The values that guide our path and lead us toward excellence are collaboration, innovation, commitment, fun, and trust.

Additional information

At knowmad mood, we are committed to equal opportunities and respect for diversity. We apply our Equality Plan and the principle of non-discrimination in all our recruitment processes.

All open roles at knowmad mood