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Urgent! Backend Developer (.NET) - Local Job Opening in Barcelona
Overview
We are looking for a
.NET Developer
with solid experience in designing and building scalable, testable, and maintainable backend services.
You will focus primarily on engineering robust APIs and service layers using
.NET , while occasionally contributing to Windows desktop application development where needed.
This role is ideal for engineers who care deeply about clean architecture, automation, and solving real-world problems through backend excellence.
You’ll collaborate cross-functionally to deliver reliable, performant systems that power key business applications.
/
This is a hybrid role requiring 3 days per week in our Barcelona office.
First 90 Days
30 days
– Ramp up on Sage’s architecture, services, and backend standards.
Understand deployment flows and key integrations.
60 days
– Actively contribute to key product initiatives and features in development.
Demonstrate increasing ownership and impact within the engineering team.
Begin contributing meaningful code to the main product codebase.
90 days
– Take full ownership of feature delivery, from planning to release.
Lead code reviews and ensure adherence to quality and best practices.
Participate in architectural discussions and help shape technical direction.
Meet the Team
You’ll report to an Engineering Manager based in Barcelona and collaborate with colleagues across backend, desktop, QA, DevOps, and product teams.
The team works in a global Agile structure and values code quality, autonomy, and continuous improvement.
How Success Will Be Measured
Consistent delivery of performant and reliable .NET Core backend services Active contribution to service design, performance tuning, and codebase health Impactful collaboration with cross-functional teams on features and deployments Adoption and promotion of architectural patterns and engineering standards Skills You’ll Gain
Deep expertise in
.NET Core
services, clean architecture, and API design Experience collaborating on desktop + backend integrations Broader exposure to DevOps, CI/CD, and containerization practices Involvement in architectural decision-making and backend scaling challenges Snapshot of Your Day-to-Day
You’ll design and develop backend services in
.NET Core , implement APIs and data layers, and integrate with third-party systems.
You may also support WPF-based desktop clients, participating in service integration and modernization.
You’ll attend standups, code reviews, and contribute to CI/CD and observability efforts.
Qualifications
5+ years of experience in professional backend development with C# and
.NET Core Expertise in building and optimizing RESTful APIs and service layers Solid understanding of clean architecture, async programming, and testing Proficient in SQL Server, Entity Framework Core, and query optimization Experience working in Agile teams with CI/CD pipelines Fluent in English; Spanish fluency is a plus Experience with WPF/MVVM is a strong plus Tech Stack You’ll Work With
Languages & Frameworks: C#, .NET Core, ASP.NET Core, Entity Framework Core, LINQ Backend Patterns: REST, Clean Architecture, CQRS, async programming Databases: SQL Server, relational data modelling, performance tuning Desktop: WPF, MVVM, XAML DevOps & Tooling: Git, CI/CD pipelines (Azure DevOps or equivalent), Docker (optional), monitoring tools Benefits
Flexible benefits:
exchange part of your salary and make tax savings on health insurance, meal and transport vouchers, childcare, and training.
Well-being:
Free access to the Calm app (for up to 5 users), 24/7 counselling, and emotional support from our Healthy Mind Coaches.
We also offer self-care and parenting resources through the Cleo app.
Flexible working:
flexibility of working one hour in, one hour out, shortened workdays on Fridays and during the summer, and the opportunity to work from over 40 countries for up to 10 weeks per year through our Work Away program.
Annual leave:
23 working days of vacation, 5 paid days per year for volunteering, and 5 additional paid days annually for personal or professional development.
Extended leave:
7 extra days of maternity leave and 5 extra days of paternity leave, on top of the legal allowance, available after one year of service.
Financial support:
Life and disability insurance, salary advances of up to 3.5 times your net monthly pay, a €300 net marriage bonus, and access to Sage's employee stock purchase plan at a discounted rate.
Health and Safety Responsibilities Fostering the safety culture by leading with your own example.
Following established safety procedures and reporting potential hazards promptly helps maintain a secure and efficient workplace.
Participating in safety training sessions and adhering to preventive guidelines and procedures, the objective is minimizing risks and protecting yourself and the rest of your colleagues.
Seniority level
Mid-Senior level Employment type
Full-time Job function
Engineering and Information Technology Industries Software Development
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Unlock Your Backend Developer Potential: Insight & Career Growth Guide
Real-time Backend Developer Jobs Trends in Barcelona, Spain (Graphical Representation)
Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph below. This graph displays the job market trends for Backend Developer in Barcelona, Spain using a bar chart to represent the number of jobs available and a trend line to illustrate the trend over time. Specifically, the graph shows 39740 jobs in Spain and 6857 jobs in Barcelona. This comprehensive analysis highlights market share and opportunities for professionals in Backend Developer roles. These dynamic trends provide a better understanding of the job market landscape in these regions.
Great news! Sage is currently hiring and seeking a Backend Developer (.NET) to join their team. Feel free to download the job details.
Wait no longer! Are you also interested in exploring similar jobs? Search now: Backend Developer (.NET) Jobs Barcelona.
An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at Sage adheres to the cultural norms as outlined by Expertini.
The fundamental ethical values are:The average salary range for a Backend Developer (.NET) Jobs Spain varies, but the pay scale is rated "Standard" in Barcelona. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.
Key qualifications for Backend Developer (.NET) typically include Other General and a list of qualifications and expertise as mentioned in the job specification. Be sure to check the specific job listing for detailed requirements and qualifications.
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Before the Interview:To prepare for your Backend Developer (.NET) interview at Sage, research the company, understand the job requirements, and practice common interview questions.
Highlight your leadership skills, achievements, and strategic thinking abilities. Be prepared to discuss your experience with HR, including your approach to meeting targets as a team player. Additionally, review the Sage's products or services and be prepared to discuss how you can contribute to their success.
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