Senior Frontend Developer

ERNI Spain; Madrid; Híbrido; EUR 40.000 - 60.000; Jornada completa

Descripción de la vacante

A leading software engineering company is seeking a Senior Frontend Developer to join a dynamic team focused on health-tech projects. You will work on innovative software solutions using React, managing development and documentation while enjoying benefits like flexible work and continuous training opportunities.

Servicios

Private health insurance

Paid parental leave

23 vacation days

Relocation support

Team events celebrating progress

Formación

• Experience leading teams.
• Experience with modern frontend development using React.
• Experience managing state with Redux or similar libraries.

Responsabilidades

• Contribute to the architecture and development of a new React project.
• Write technical documentation for regulatory entities.
• Create high-quality unit tests.

Conocimientos

React

Redux

Git

Continuous Integration

Leadership

DDD

Hexagonal architecture

Descripción del empleo

ERNI is a Swiss Software Engineering company leader in building complex, customized software solutions. It’s more than 25 years of using technology to have a positive impact on people's lives.

We build digital solutions that connect the physical world (devices & connectivity) with the digital one (software solutions, connected, or consuming their data). Our teams focus on prioritizing the software lifecycle & ensuring our code is both clean and secure. Our expertise in building high-impact software spans various industries seeking quality and sophistication (e.g., Gaming, FMCG, Validation & Inspection).

Our leadership in Health-Tech (Diagnostic Medical Devices, Pharma, Healthcare) and in all industries around Smart Devices (Robots, Cars, 3D Printers, Machinery), combined with our focus on growing our people, creates a dynamic, learning, and challenging environment for ERNIans.

Can you imagine working on a project that makes a real impact in health?

At ERNI, you’ll join global teams developing cutting-edge software solutions in the health-tech domain.

As a Senior Frontend Developer, your mission is to help develop a platform designed to optimize and manage the operations of clinical laboratories. You will work in a team of 8 developers from ERNI, in an international environment, with opportunities to ramp up in different technologies.

You’ll have a tailored career plan, continuous training, and the freedom to propose solutions, not just execute them. And when a project ends, we’re already planning what’s next, with you in mind.

How ERNI cares about YOU

Real tech, real impact: You’ll work on advanced industrial projects, helping teams build secure-by-design products from the ground up.

Career growth & training: Whether you want to deepen your expertise or move into leadership, you’ll have access to 500+ courses, be rewarded for certifications (up to €1,400 each), and receive ongoing mentorship with regular 1:1s throughout your journey at ERNI.

Flexible work: Hybrid by design. We believe strong relationships with teammates, projects, and clients grow best in person, so most teams meet 2–3 days per week. But you’ll manage your own schedule, with autonomy and trust from day one.

Benefits that count: Private health insurance, paid parental leave, 23 vacation days, relocation support, and team events celebrating progress together.

What it’s like to be a Senior Frontend Developer at ERNI:

• Contribute to the architecture and development of a new React project.
• Write technical documentation for regulatory entities.
• Create high-quality unit tests.
• Follow Git and Continuous Integration best practices.
• Communicate daily with the team in English.

To be the best fit for this role, you will need:

• Experience with modern frontend development using React.
• Experience managing state with Redux or similar libraries.
• Experience with advanced React Hooks like useMemo, useCallback, and Context API.
• Experience leading teams.
• Experience with Microfrontend architecture is a plus.
• Experience with DDD and Hexagonal architectures is a plus.

We value diversity in gender, nationality, background, and skills. Every employee at ERNI has an equal opportunity to succeed. Learn more about our initiatives:

Diversity and inclusion

Would you like to become an ERNIan? Apply now!