Nombre de vacante
Senior .NET Developer – Windows Desktop
Descripción
We are looking for a Senior .NET Developer with deep experience in the Windows desktop application ecosystem and strong command of the .NET stack. You’ll design, modernize, and maintain high-quality desktop software while also contributing to .NET Core backend services. This role is ideal for someone who values clean architecture, engineering discipline, and autonomy, and who wants to help shape technical direction.
This is a hybrid role requiring 3 days per week in our Barcelona office.
First 90 Days
- 30 days: Familiarize yourself with Sage’s Sales Management desktop apps, tooling, and engineering standards. Meet your team and begin onboarding into our development environment.
- 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 will report to an Engineering Team Leader and work within a technically strong and collaborative cross-functional team including developers, QA engineers, DevOps, and product managers. The team emphasizes ownership, clean code, and shared accountability for delivering impactful solutions.
How Success Will Be Measured
- High-quality, maintainable code delivered within agreed timelines
- Positive peer reviews and technical contributions to team knowledge
- Measurable improvements to system performance and stability
- Effective collaboration with stakeholders across engineering and product
Skills You’ll Gain
- Deep expertise in WPF and modern Windows application architecture
- Broadened experience in .NET Core backend and API development
- Mentorship and leadership development through coaching responsibilities
- Exposure to CI/CD, observability, and DevOps collaboration in a mature Agile setup
Responsabilidades principales
Snapshot of Your Day-to-Day
You’ll design and build desktop features using WPF and MVVM, contribute to backend services using .NET Core, review code, lead architectural discussions, and collaborate closely with product and QA teams. You'll also be involved in performance tuning, diagnostics, and modernizing legacy codebases.
Qualifications
- 3+ years of professional .NET development experience
- Deep expertise in desktop application development (WPF, MVVM, XAML)
- Familiarity with .NET Core, REST APIs, and backend services
- Strong grasp of software architecture, multithreading, and UI performance
- Solid experience with SQL Server and Entity Framework Core
- Fluent in English ; Spanish fluency is a plus
- High autonomy in overcoming new and complex challenges
Tech Stack You’ll Work With
- Languages & Frameworks: C#, .NET Framework, .NET Core, WPF, MVVM, XAML
- Backend: ASP.NET Core, REST APIs, Entity Framework Core
- Databases: SQL Server, LINQ, EF Core
- Tools: Visual Studio, Git, CI/CD pipelines (Azure DevOps or equivalent)
- Optional/Plus: Docker, Windows APIs, OData
At Sage, we offer you an environment where you can grow professionally without compromising your personal well-being. Our benefits package is designed to provide stability, flexibility, and balance:
- 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.
#LI-AL2
Function
Product Delivery
Country
Spain
Office Location
Barcelona
Work Place type
Hybrid
Advert
Working at Sage means you’re supporting millions of small and medium sized businesses globally with technology to work faster and smarter. We leverage the future of AI, meaning business owners spend less time doing routine tasks, like entering invoices and generating reports, and more time pursuing their ambitions.
Our colleagues are the best of the best. It’s why we were awarded 2024 Best Places to Work by Glassdoor. Because to achieve extraordinary outcomes, we need extraordinary teams. This means infusing Sage with people who knock down barriers, continuously innovate, and want to experience their potential.
Learn more about working at Sage: sage.com/en-gb/company/careers/working-at-sage/
Watch a video about our culture: youtube.com/watch?v=qIoiCpZH-QE
We celebrate individuality and welcome you to join us if you embrace all backgrounds, identities, beliefs, and ways of working. If you need support applying, reach out at careers@sage.com.
Learn more about DEI at Sage: sage.com/en-gb/company/careers/diversity-equity-and-inclusion/
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