We're building the next generation of secure, scalable, and compliant systems that operate at a global scale. As a senior developer, you'll tackle complex engineering challenges — from distributed systems and cloud-native architecture to privacy-first solutions — using modern technologies and DevOps practices.

But it’s not just about the tech — it’s about how we build together. We value collaboration, curiosity, and a culture of continuous learning. You’ll be part of a supportive, high-trust team where your voice matters, your growth is encouraged, and your work directly supports over 80 million patients and 130,000 healthcare professionals across 13 countries.

About the role

This is not just another backend-heavy position — it’s a chance to join a fast-moving, learning-focused engineering team that owns products end-to-end. While your core strength is in .NET, you’ll also have the opportunity to work across the stack and gain hands-on experience with technologies like Vue.js, PHP (Symfony), Docker, and modern AI-powered development tools such as Cursor and GitHub Copilot. You’ll face cross-functional challenges, collaborate across disciplines, and contribute to solutions that are both technically rewarding and impactful at scale.

What You’ll Do

Develop scalable backend systems using .NET (C#), with a strong focus on performance, maintainability, and compliance.
Build user facing interfaces and internal tools using Vue.js and TypeScript when working on full-stack features.
Design and implement APIs and services, ensuring high availability and robust integration with frontend and partner systems.
DevOps practices: manage cloud infrastructure (primarily AWS), CI/CD pipelines, deployment automation, and monitoring.
Ensure top-tier code quality, including clean architecture, strong documentation, and rigorous testing practices.
Work closely with product and legal teams to support business needs and compliance initiatives.
Continuously improve the team’s ways of working and technical stack.
Optionally you can help the team to enhance existing PHP-based applications (Symfony) where needed.

Qualifications

You’ll Thrive in This Role If You:

Have 5+ years of experience in backend development (with a strong emphasis on .NET / C#), and backend best practices (DDD, CQRS, clean code, testing)
Have experience working with messaging systems or asynchronous communication patterns (e.g. RabbitMq)
Have working knowledge of Vue.js, TypeScript, and frontend best practices.
Have practical experience with relational and NoSQL databases (e.g. MySql, MSSQL, MongoDB).
Are skilled in DevOps principles, CI/CD, infrastructure-as-code, and monitoring tools (e.g. Datadog, ElasticSearch)
Have practical experience with AWS (e.g. S3)
Are proactive, ask thoughtful questions, and take ownership of your work.
Communicate well in English (minimum B2 level).
Care about user experience, privacy, and maintainable software design.
You are open to work with(and learn) other frameworks.

Bonus Points If You:

Are familiar with Vertical Slice Architecture
Are comfortable working with or learning Symfony / PHP.
Have experience in a DevOps culture or have built internal tooling.
Know Docker and Kubernetes or similar container orchestration tools.
Have worked in regulated industries (e.g., healthcare, finance).
Have experience building compliance or privacy-oriented applications
Are familiar with AI-assisted development tools like GitHub Copilot, Cursor, or similar, and use them to increase development efficiency and code quality.

Additional Information

What will you get in return?

Let’s talk money

A salary adequate to your experience and skills between 50,000 and 67.000 euros. The range is broad so that we can accommodate our roles for all levels of experience, but we will show you the career ladder to explain where we see your skills and impact within the company". Your salary will be, now and always, 100% transparent to you;
Flexible remuneration and benefits system via Flexoh, which includes: restaurant card, transportation card, kindergarten, and training tax savings;
Share options plan after 6 months of working with us.

True flexibility and work-life balance

Remote or hybrid work model with our hub in Barcelona;
Flexible working hours (fully flexible, as in most cases you only have to be on a couple of meetings weekly);
Summer intensive schedule during July and August (work 7 hours, finish earlier);
23 paid holidays, with exchangeable local bank holidays;
Additional paid holiday on your birthday or work anniversary (you choose what you want to celebrate).

Health comes first

Private healthcare plan with Adeslas for you and subsidized for your family (medical and dental);
Access to hundreds of gyms for a symbolic fee in partnership for you and your family with Wellhub;
Access to iFeel, a technological platform for mental wellness offering online psychological support and counseling.

Keep growing with us

20% time rule: spend 20% of your working hours on personal development related to your role and collaboration with other teams;;
Free English and Spanish classes.

We promote and embrace equal opportunities in our hiring process, and also every day at work. When you apply for our roles you receive equal treatment regardless of age, disabilities, gender reassignment, marital or civil partner status, pregnancy or parental status, race, colour, nationality, ethnic or national origin, religion or belief, sex, sexual orientation or any other dimension of human difference. If you require additional support in your recruitment process, we kindly encourage you to let us know. Behind those words you’re reading, there’s a person (hi!) who already helped a candidate by adapting the interviews, and now we’re lucky to have this person with us. So, even if you’ve never asked for it before, may this serve as a sign that, now, you can do so. We can only truly be equal if we adapt to each other.

“We believe all humans, in all their beautiful diversity, should have equal rights, dignity and respect. Period.” Mariusz Gralewski, CEO