.NET Full Stack Engineer

We are Progress (Nasdaq: PRGS) – the trusted provider of software that enables our customers to develop, deploy and manage responsible, AI-powered applications and experiences with agility and ease.
We’re proud to have a diverse, global team where we value the individual and enrich our culture by considering varied perspectives because we believe people power progress. Join us as a .NET Full Stack Engineer and help us do what we do best: propelling business forward.

Among our standout products is Fiddler Everywhere—a powerful web debugging proxy used by developers, testers, and security professionals to inspect, debug, and modify HTTP(S) traffic. Widely trusted across the software industry, Fiddler plays a critical role in helping teams deliver reliable, secure, and high-performing applications.

To support our continued innovation, we’re looking for a Full Stack Engineer to join the Fiddler team in Sofia. If you’re passionate about building tools that boost developer productivity and improve user experience, this is your chance to join a mission-driven team working on a product loved by professionals worldwide.

As a Full Stack Engineer on the Fiddler team, you’ll play an active role in shaping and delivering high-quality features. This is not a task-taker role—you’ll have the opportunity to contribute your voice, ideas, and expertise throughout the development lifecycle.

In this role, you will:

• Develop new and innovative features, often requiring creativity, research, and problem-solving to address complex technical challenges.
• Own full user stories—from backend implementation in .NET to crafting intuitive UI components in Angular. You’ll see your work come to life across the entire stack.
• Collaborate with product managers and designers early in the process, helping shape the user experience and ensuring features are both functional and delightful.
• Follow secure coding practices, including regular security scans, updates, threat modeling, and adherence to industry standards.
• Learn and grow through collaboration with experienced engineers—both within the Fiddler team and across Progress. You’ll have plenty of opportunities to expand your technical and interpersonal skills.
• Investigate and resolve issues reported by QA or customers, gaining valuable insights into how users interact with the product.
• Participate in code reviews, offering and receiving constructive feedback to provide high-quality, maintainable code.
• Leverage AI tools and contribute to our AI-driven initiatives aimed at boosting developer productivity and enhancing product capabilities.
• Work in an agile environment, following two-week sprints and frequent release cycles that keep the team focused and flexible.
• Engage in daily stand-ups, sprint planning, and retrospectives, ensuring alignment, transparency, and continuous improvement.

About you:

• Solid experience with .NET (C#)
• Solid JavaScript knowledge
• Solid experience with client-side JavaScript frameworks (preferably Angular)
• Solid experience with version control systems (preferably Git) and peer code reviews
• Fluent English – both verbal and written
• Smart, friendly team player, and you enjoy working with others to pursue a common goal
• Familiar with Object Oriented Design and Architecture, as well as Design patterns

Additionally, it would be beneficial if you have:

• Experience with research and solving tough challenges
• Experience with process improvements in the team/company – what was not working well, and you took the opportunity to resolve it.
• Experience with different operating systems – macOS, Windows and Linux.
• Knowledge of network protocols
• Interest or experience in AI technologies. Familiarity with tools like GitHub Copilot.
• Experience with AWS
• Bachelor/Master’s degree in computer science or related area

If this sounds like you and fits your experience and career goals, we’d be happy to chat.

What we offer in return is the opportunity to experience a great company culture with wonderful colleagues to learn from and collaborate with and also to enjoy:

Compensation

• Generous remuneration package
• Employee Stock Purchase Plan Enrollment

Vacation, Family, and Health

• 30 days paid annual vacation
• An extra day off for your birthday
• 2 additional days off for volunteering
• Premium healthcare and dental care coverage
• Additional pension insurance
• Well-equipped gym on-site with CrossFit equipment and a climbing wall
• Co-funded Multisport card
• Daycare Center for your little ones onsite
• Flexible working hours and work-from-home allowance
• Free underground parking with a designated space for bikes and electric scooters