Full Stack Developer – Agent Application

Puzzel

Full Stack Developer responsible for agent-facing applications at Puzzel, a cloud-based contact center solution provider. Engaging in cross-functional development for enhancing customer service technology.

Posted 5/16/2026full-timeSofia • 🇧🇬 BulgariaMid-LevelSenior💰 €42,000 - €48,000 per yearWebsite

Tech Stack

Tools & technologies

AngularAzureJavaScriptJestKubernetes.NETReactTypeScript

About the role

Key responsibilities & impact

Build and maintain our agent-facing application (45k+ daily users)
Evolve our continuous delivery process, aiming for zero-downtime releases
Work in a cross-functional team (Tech Lead, PM, Designer, Engineers, QA)
Write clean, maintainable, tested code and review others’ code
Debug production issues and take ownership of fixes
Contribute to system design and technical decisions

Requirements

What you’ll need

Strong JavaScript/TypeScript skills
Experience with modern frameworks (Aurelia, Angular, or React)
Strong experience with C# (.NET Core)
Testing mindset (unit + e2e; Jest, Playwright or similar)
Experience with containers and Kubernetes
Familiarity with CI/CD (GitHub Actions, Azure DevOps, or similar)
Understanding of modern product development (Product Operating Model)
Ability to write readable code, document decisions, and communicate clearly
Comfortable working in a team, giving and receiving feedback

Benefits

Comp & perks

Competitive salary based on Mercer salary benchmarking data
Flexible, hybrid approach to working; split your time between the office and home
You get to be part of a fun, driven and supportive team
Annual Summer and Christmas parties
Excellent development opportunities and a great company culture

ATS Keywords

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Hard Skills & Tools

JavaScriptTypeScriptC#.NET CoreAureliaAngularReactunit testinge2e testingKubernetes

Soft Skills

communicationteamworkfeedbackownershipclean codedocumentation