Frontend Developer NextJS
Summary
Frontend Developer building and maintaining modern web applications with Next.js, React, and TypeScript, deploying and optimizing via Vercel, and integrating REST APIs. Based in Madrid, Barcelona, or Valencia at consulting firm Amaris Consulting; fluent English required.
Requirements
What we're looking for
✍️ What would you need?
- 5+ years of experience as a Frontend Developer.
- Strong expertise in Next.js and modern JavaScript/TypeScript development.
- Proven experience building scalable, responsive, and high-performance web applications.
- Hands-on experience with Vercel for deployment, hosting, and application optimization.
- Strong knowledge of React, frontend architecture, and component-based development.
- Experience working with REST APIs and integrating third-party services.
- Familiarity with version control tools such as Git.
- Fluent English (written and spoken).
- Strong problem-solving skills and ability to work in an international environment.
Pay & benefits
What you'll get
Join our dynamic team of talented people and discover a world full of growth and opportunity. Here's what we offer: - Rapid growth through a personalised career path and salary assessment. 70% of our senior leaders started in entry-level positions. - Improve your skills through our Technology Academy catalogue, Udemy platform, language classes, webinars and workshops. - Take control of your training with a personal annual budget and company-paid certifications. - Enjoy flexible policies, remote work options and excellent social benefits such as transport and restaurant tickets, childcare support and private health insurance. - Benefit from our WeCare programme, which supports employees in critical situations. - Unlock your full potential, both professionally and personally. Amaris Consulting prides itself on being an equal opportunity employer.
The role
Take your career to the next level with Amaris Consulting as a Frontend Developer (Next.js). Be part of an international team, thrive in a global group with a €800M turnover and over 1,000 clients worldwide, and an agile environment. We are looking for a Frontend Developer with strong expertise in modern web technologies, particularly Next.js and Vercel, to develop and deploy high-performance applications. Fluent English is required for this role.
What you'll do
👉 What will you be doing?
- Develop and maintain modern web applications using Next.js.
- Build reusable, scalable, and high-quality frontend components.
- Deploy, monitor, and optimize applications using Vercel.
- Collaborate with cross-functional teams to deliver intuitive and user-friendly digital experiences.
- Ensure application performance, responsiveness, and code quality.
- Participate in architectural and technical decisions for frontend projects.
- Stay up to date with the latest trends and best practices in frontend development.
How you'll work
📍 Location
- Madrid, Barcelona, or Valencia
About Amaris Consulting
Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses, gathering 7,600 people across 5 continents and more than 60 countries. With more than 1,000 clients worldwide, its experts work across sectors ranging from financial services and transportation to healthcare and technology, organized around practices such as Life Sciences, IS & Digital, Telecom, and Engineering, plus Centers of Excellence covering areas like Agile Transformation, Quality Assurance, Health Economics & Market Access, and Advanced Application Development. The firm is part of Mantu, an international consulting group with a turnover of 1 billion and 12,000 people, headquartered in Geneva, Switzerland.
Amaris lists Spain among its countries of presence and is actively hiring there, with current openings including IT & Digital Project Manager, Senior Java Developer, Cybersecurity Engineer, Data Engineer - Spanish speaker, and several pharma-focused automation and clinical project roles. The company describes itself as an equal opportunity workplace and affirmative action employer, and highlights a workforce of 110+ nationalities, which points to a multicultural environment. Candidates should note that Amaris communicates only through its official email domains (amaris.com or mantu.com) and never requests money or personal details via informal channels.
- Industry
- Consulting
- Founded
- 2007
- Employees
- 7,600
- Headquarters
- Geneva, Switzerland
Good to know if you are moving
- Amaris operates in more than 60 countries across 5 continents with a workforce of 110+ nationalities, indicating a highly international environment.
- The company is an equal opportunity workplace and affirmative action employer, committed to equal employment opportunity regardless of national origin, citizenship, and other protected characteristics.
- Amaris is actively hiring in Spain, with open roles including IT & Digital Project Manager, Senior Java Developer, Cybersecurity Engineer, Data Engineer - Spanish speaker, and pharma automation leads.
- Some Spain-based roles, such as Data Engineer, explicitly require Spanish, so language requirements vary by position.
- The company warns candidates about recruitment scams: it only uses official email domains (amaris.com or mantu.com) and never requests money or personal details via informal channels.
In their own words
Additional information
We are committed to promoting diversity within the workforce and creating an inclusive work environment. To this end, we welcome applications from all qualified candidates, regardless of gender, sexual orientation, race, ethnicity, creed, age, marital status, disability or other characteristics.