Starting date: ASAP

Job Reference: 405_26_MNG_ISS_NET

Position: Mid-Level Full Stack WEB Developer (.NET)

Closing Date: Thursday, 15 October, 2026

Reference: 405_26_MNG_ISS_NET

Job title: Mid-Level Full Stack WEB Developer (.NET)

About BSC

The Barcelona Supercomputing Center - Centro Nacional de Supercomputación (BSC-CNS) is the leading supercomputing center in Spain. It houses MareNostrum, one of the most powerful supercomputers in Europe, was a founding and hosting member of the former European HPC infrastructure PRACE (Partnership for Advanced Computing in Europe), and is now hosting entity for EuroHPC JU, the Joint Undertaking that leads large-scale investments and HPC provision in Europe. The mission of BSC is to research, develop and manage information technologies in order to facilitate scientific progress. BSC combines HPC service provision and R&D; into both computer and computational science (life, earth and engineering sciences) under one roof, and currently has over 1000 staff from 60 countries.

Look At The BSC Experience

BSC-CNS YouTube Channel

Let's stay connected with BSC Folks

We are particularly interested for this role in the strengths and lived experiences of women and underrepresented groups to help us avoid perpetuating biases and oversights in science and IT research. In instances of equal merit, the incorporation of the under-represented sex will be favoured.

We promote Equity, Diversity and Inclusion, fostering an environment where each and every one of us is appreciated for who we are, regardless of our differences.

If you consider that you do not meet all the requirements, we encourage you to continue applying for the job offer.



We value diversity of experiences and skills, and you could bring unique perspectives to our team.

Context And Mission

We are looking for a Mid-Level Full Stack Developer with experience in .NET to join an internal platform used for time tracking and reporting in audit processes.

The selected candidate will be responsible for maintaining, improving, and supporting the application.

Key Duties

- Develop end-to-end features using .NET Core / .NET 6+ on the backend and Razor Views + HTML on the frontend
- Participate in architecture design and technical decision-making
- Contribute to code quality improvements, code reviews, and best practices
- Integrate REST APIs and work with SQL databases
- Provide support to the financial justification team regarding the platform

Requirements

- Education
- Degree in Computer Engineering, Information Technology, or similar
- Essential Knowledge and Professional Experience
- 2-4 years of experience with C# and .NET Core / .NET 6+
- Experience with Entity Framework and SQL Server
- Experience working with Razor Views
- Strong knowledge of HTML, CSS, JavaScript, jQuery
- Experience with web deployment (Kestrel/HTTPS) and SMTP/authentication setup
- Working fluency in Spanish and English is required, Catalan will be a plus.




- Additional Knowledge and Professional Experience
- Understanding of REST APIs
- Nice to have:
- ASP.NET Identity
- Quartz.NET for scheduled jobs
- QuestPDF or similar PDF generation libraries
- EPPlus for Excel/CSV exports
- SMTP / automated email sending
- Serilog
- Competences
- Autonomy & Proactivity: Ability to work independently and take initiative in development tasks.
- Technical Ownership: End-to-end responsibility for development, testing, and maintenance.
- Problem Solving: Diagnose and resolve issues.
- Clean Code & Best Practices: Experience with .NET best practices, design patterns, and Git.
- Communication & Collaboration: Clear communication with technical and non-technical staff

Conditions

- The position will be located at BSC within the Management Department
- We offer a full-time contract (35h/week), a good working environment, a highly stimulating environment with state-of-the-art infrastructure, versátil working hours, extensive training plan, restaurant tickets, private health insurance, support to the relocation procedures
- Duration: Open-ended contract due to technical and scientific activities linked to the project and budget duration
- Holidays: 22 days of holidays + 6 personal days + 24th and 31st of December per our collective agreement
- Salary: we offer a competitive salary commensurate with the qualifications and experience of the candidate and according to the cost of living in Barcelona
- Starting date: ASAP

Development of the recruitment process

The selection will be carried out through a competitive examination system ("Concurso-Oposición").

📌 Mid-Level Full Stack WEB Developer (Barcelona)
🏢 Barcelona Supercomputing Center
📍 Barcelona