Senior Full Stack Developer .NET & React

isolutions AG; España; Hybrid; PHP 4,360,000 - 5,814,000; Full time

Benefits offered by this job

Hybrid setup in Barcelona

Remote from anywhere in Spain

Flexible working hours

Annual training budget

Free language courses

Team events and culture

Job summary

isolutions AG in Barcelona is seeking an experienced Senior Full Stack Developer to join a dedicated team working with one key client. You will collaborate across disciplines to deliver solutions that create tangible business value using .NET, React, and TypeScript.

You will work in an agile environment with planning in JIRA, a hybrid setup in Barcelona or remote from anywhere in Spain, and a focus on code quality with Azure, Terraform, and modern tech.

Qualifications

• Solid background in software development and the implementation of complex software solutions (5+ years).
• Knowledge of web technologies: C#, .NET, React, TypeScript.
• Cloud experience with Azure (Terraform knowledge is a plus).
• Completed university degree in Computer Science or equivalent professional training.
• Structured, methodical and goal-oriented work. Good communication in English.

Responsibilities

• Develop software solutions using .NET, React and TypeScript in an agile team.
• Collaborate across Barcelona and Swiss-based project teams.
• Plan work with JIRA and ensure high-quality code using modern technologies.
• Contribute to architectural decisions and hands-on delivery.
• Engage with a dedicated client to deliver tangible business value.

Skills

English communication

Education

Bachelor's degree in Computer Science

Tools

C#

.NET

React

TypeScript

Azure

Terraform

Job description

Are you an experienced Software Developer with a passion for creating cutting-edge software solutions?

As a Senior Full Stack Developer, you'll join a dedicated team working exclusively with one of our key clients. Day by day, you'll collaborate as one team, sharing goals, challenges, and successes while developing solutions that create tangible business value.

You’ll experience the best of both worlds: the spirit and culture of the DigitalHub Barcelona, together with the opportunity to work deeply embedded in a client's product ecosystem. This means stronger collaboration and the chance to see the direct impact of your work over time.

Join an international team where your voice is heard, your expertise matters, and your work directly influences the evolution of a long-term product.

This is what you get up for in the morning

• Work with .NET, React, TypeScript, Azure and Terraform.
• Work as part of an agile team, in which design decisions are made together.
• Plan your work with JIRA.
• Focus on good quality using the latest technologies.
• Collaborate in a project team based in Barcelona and Switzerland.

We would like you to bring

• Solid background in software development and the implementation of complex software solutions (5+ years).
• Knowledge of web technologies: C#, .NET, React, TypeScript.
• Cloud experience with Azure (Terraform knowledge is a plus).
• Eager to learn new technologies and frameworks and curious about how things work
• Completed university degree in Computer Science or equivalent professional training.
• Structured, methodical and goal-oriented work.
• An open personality who enjoys software development and wants to achieve ambitious goals together with us.
• Good communication skills in English.
• EU citizen or Spanish work visa.

If your experience looks a little different from what we've identified and you think you can add value to our crew, we’d love to learn more about you.

What we offer:

• Permanent contract with an interesting fringe benefits package.
• Flexible working hours and a hybrid setup in Barcelona or remote from anywhere in Spain, designed around your needs for an optimal work-life balance.
• Personalized career development plan tailored to your professional goals, with access to a yearly training budget.
• Master a new language with our free language courses.
• Extra vacation for a good cause: dedicated to Corporate Social Responsibility.
• Unforgettable team and business events, such as sailing, wine tasting, ski trips, office parties, an annual trip to Switzerland and more.
• A dynamic, international team culture where fun, collaboration, and strong connections happen every day!

How to find out if this is the next step in your career:

• Discovery call with HR
• Interview - video call with the Internal IT Team
• Final technical assessment

Our commitment: to give you feedback on each step, both in positive and negative cases.