Full Stack Software Engineer (Java/Spring & React )

Who we are  

At Qualifast, we’re a small and highly skilled team based in Sofia, passionate about building high-quality software from the ground up.

We value collaboration, ownership, and transparency — every team member has a voice in company decisions and takes part in shaping how we work.

We design our processes for each project individually, following agile and lean principles, and we’re actively involved in the Bulgarian startup ecosystem.

Technologies we use: 

• Backend: Java 21+, Spring Boot & Spring Framework, Hibernate, Gradle, PostgreSQL, MySQL, AWS, GCP, Docker
• Frontend: Angular 18+, React, JS, TS, Angular Material, CSS/SASS/LESS, HTML, Flexbox

What You’ll Do

As part of our team, you will:

• Build high-quality, scalable, and maintainable full-stack applications
• Contribute to architecture, design, and implementation of software solutions
• Solve complex engineering challenges with creativity and innovation
• Develop and integrate RESTful APIs and third-party services
• Create responsive, accessible, and user-friendly web interfaces connected to backend systems
• Take end-to-end ownership of the delivery of your work
• Collaborate effectively in agile (and occasionally distributed) teams

Requirements  

• 3+ years of experience as a Software Engineer
• Hands-on experience with Java and Spring Boot
• Solid knowledge of React and its core principles
• Familiarity with TypeScript, JavaScript, CSS and HTML
• Understanding of RESTful APIs and relational databases (PostgreSQL/MySQL)

• Experience building and deploying production-ready applications
• Very good level of English (written and spoken)
• Ability to understand, analyze and solve complex problems
• A mindset focused on optimization, quality, and continuous improvement
• Curious, adaptable, and problem-solving personality

 Nice to Have

• Familiarity with containers (Docker) and cloud technologies (AWS, GCP)
• Experience with testing frameworks and CI/CD tools
• Experience with startup environments or building products from scratch

What We Offer

• Fast and transparent recruitment process
• Performance reviews twice a year
• Additional health insurance
• Flexible working hours & hybrid work model
• Sponsored trainings and conferences
• Friendly, supportive team culture and regular team events

 Interested?

If this sounds like your next step, send us your CV.

We’ll contact only shortlisted candidates. All applications are treated with strict confidentiality.