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Junior Backend Engineer

Kaizengaming

Sofia, Bulgaria (Bulgaria) Hybrid permanent

Posted: March 9, 2026

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Quick Summary

We are looking for a Junior Backend Engineer to join our team in Sofia, Bulgaria. The role involves working on a cutting-edge game development project and contributing to the growth of Betano. The successful candidate will have a strong background in backend development and a desire to work in a dynamic and innovative environment.

Job Description

We are Kaizen Gaming

Kaizen Gaming, the team powering Betano, is one of the biggest GameTech companies in the world, operating in 20 markets. We always aim to leverage cutting-edge technology, providing the best experience to our millions of customers who trust us for their entertainment.

We are a diverse team of more than 2.700 Kaizeners, from 40+ nationalities spreading across 3 continents.

Our #oneteam is proud to be among the Best Workplaces in Europe and certified Great Place to Work across our offices. Here, there’ll be no average day for you. Ready to Press Play on Potential?

Let’s start with the role

• Design, build and maintain efficient, reusable and reliable code;

• Develop interfaces between components of heterogeneous subsystems running in a high-volume transaction-oriented production environment;

• Ensure the best possible performance, quality, and responsiveness of applications;

• Identify bottlenecks and bugs, and devise solutions to complex problems.

Tech stack

Most of our sites and services are written in C# / ASP.NET. Newer services are written in .NET Core. New applications use vue.js in the front-end while older ones use server-rendered (Razor) views in combination with jQuery & Knockout.js. MS SQL server is used for most of our storage needs, but also uses Redis and ElasticSearch when it makes sense to do so. RabbitMQ is our go-to message broker. We use Gitlab for code versioning and CI, and the Atlassian stack for tickets and documentation.

What you’ll bring

• At least 1 year of development experience using C# / ASP.NET / MVC (full framework or .NET Core);

• Basic understanding of basic web technologies, such as HTTP, etc.;

• Experience with data access (databases / APIs);

• Exposure to unit testing is a plus.

Kaizen Gaming Perks

• 🕑 Hybrid way of working

• 🏃 A buddy will support you with your onboarding

• 💸 Competitive pay and bonus scheme

• 👩‍⚕️ Private health insurance for you and your family

• 💰 Monthly meal allowance

• 🤸 Multi-sport card

• 🌴 Additional vacation days

• ⭐Developmental 360° feedback framework

• 📚 Unlimited access to Udemy & continuous training

• 👨‍👩‍👧‍👦 Family Support

Recruitment Privacy Notice

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We are an equal opportunity employer committed to fostering a diverse and inclusive workplace. We welcome applications from individuals of all backgrounds, regardless of race, gender, religion, sexual orientation,or age.

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