Software Engineer (Umbraco)
- Campus Sofia
- Senior
- Expertise: Technology
- Skills: Umbraco, .NET, CI/CD, Agile
- Employment: Employed
- What you'll do
- Your qualities and skills as Software Engineer (Umbraco)
- What’s in it for you
- Get to know iO
- What your colleagues say
- Your application, step by step
What you'll do
Do you love building digital environments and web applications that - literally - everyone can enjoy? Does that include the development and documentation of complex systems? Do you especially enjoy sparring sessions with developers, architects and designers? In that case, iO might just hold the perfect spot for you at our campus in Sofia, Bulgaria.
At iO, you’ll find yourself in an international organization that looks and feels closely connected, thanks to our hybrid way of working and cozy campuses, open to all employees, across Belgium, the Netherlands, Sweden, and Bulgaria. In that culture of open, cross-campus communication and collaboration, you’ll find yourself in a self-managing Scrum team, composed of colleagues and clients alike.
You will optimize our current platforms and develop new customized solutions and features using Umbraco CMS, always on the lookout for new techniques to introduce to your team. You're vocal during standups and like to share your ideas with the rest, showcasing your abilities as a team player with strong communication skills and eagerness to learn quickly and utilize new technologies.
Even with your .NET and Umbraco experience, you recognize there’s always plenty to learn. That’s why we support you in your development, not only within your professional field but also on a personal level. Consider soft-skills training, Expert Groups, certificates, or inspiring events as part of your growth journey with us.
Your qualities and skills as Software Engineer (Umbraco)
Your qualifications and skills:
Hands-on experience with Umbraco CMS (v8, v10 or newer) in real-world projects
Solid understanding of Umbraco architecture, including Document Types, Templates, Macros, and Data Types
Experience developing custom controllers, SurfaceControllers, and API integrations in Umbraco
Familiarity with Umbraco deployment workflows (e.g., Umbraco Cloud, CI/CD pipelines)
Understanding of Multisite and Multilingual setups in Umbraco
Good knowledge of Umbraco content caching, Examine search, and performance optimization
Experience working with partial views, View Components, and Razor templating in Umbraco
Ability to troubleshoot and debug Umbraco runtime and configuration issues
Familiarity with Umbraco security concepts such as member authentication, role-based access, and user permissions
Ability to create and customize Umbraco backoffice editors and dashboards
What We Offer:
A vibrant, international organization with a culture of open, cross-campus communication across Belgium, the Netherlands, Sweden, Denmark and Bulgaria
A self-managing Scrum team environment where collaboration with clients and colleagues is key
Personal training budget to support you in professional and personal development, including opportunities for growth and learning in various fields
26 days of annual paid leave
Food vouchers
Additional health and dental insurance
Sports cards
Public transport card/ fuel allowance
Mobile device reimbursement
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- #LI-Hybrid
What’s in it for you
26 days of vacation days
Based on a 40-hour work week, you have 26 days of paid leave.
Additional health and dental insurance
Covering patient and outpatient care, health and dental care, reimbursement of costs for prescribed medicines, pregnancy and birth coverage.
Hybrid working
A good work-life balance is super important. Together with your team, you’ll decide when and where you work.
Healthy office snacks and specialty coffee
At our campus, we provide fresh fruits, healthy snacks and specialty coffee beverages throughout the day.
Personal training budget
Each year, you’ll get a budget of €3,000 to develop yourself, in your profession or as a person, through training, events, or courses.
Celebrating together
If there’s something to celebrate, we know how to party! From time to time, the party team at your campus will organise the best (theme) parties.
Get to know iO
What your colleagues say

Your application, step by step
Working together, making an impact and growing: it all starts with the right connection. That's why we'd like to get to know you and want you to get to know your future colleagues too.
FAQ
Apply now
Ready for an exciting career at iO? Apply using this form or through LinkedIn. We’ll contact you soon.