QA Engineer

About the Position

FIRST. is a dynamic and innovative global technology company that provides B2B SaaS solutions for online sports platforms. We are at the forefront of innovation, empowering gaming partners with revolutionary sportsbook solutions. Our cutting-edge sportsbook software, premium data feeds, and unwavering commitment to partner success are reinventing the gaming industry.

We’re looking for a Mid/Senior QA Engineer to join our Data Insights team, with a focus on manual testing of backend and data-intensive systems. Automation is a plus, not a must - we value strong QA fundamentals, analytical thinking, and technical troubleshooting.

Responsibilities

• Test APIs, backend services, databases, and system integrations
• Perform manual, exploratory, integration, E2E, and regression testing
• Validate data using SQL and investigate issues through logs, APIs, and databases
• Identify risks, edge cases, dependencies, and root causes
• Own testing activities and collaborate closely with developers and product teams
• Contribute to QA processes and automation where applicable

Requirements

• Mid/Senior-level Manual QA experience
• Strong API/backend testing and SQL/database skills
• Solid understanding of test design, integration, E2E, and regression testing
• Strong analytical, troubleshooting, and problem-solving skills
• Ability to understand complex systems and work independently
• Good English and communication skills

Nice to Have

• Python/Test automation
• Big Data & Data Lakes, ETL/Data pipelines, Power BI (or any other BI tool)
• PostgreSQL/BigQuery
• Pulsar/Event streaming
• Docker/Kubernetes, CI/CD, Jenkins, Git

We Offer

• An open-minded environment that values you
• An international multicultural team
• Career development
• An amazing office environment
• Food vouchers (95 EUR)
• Additional health insurance
• Sports card
• Up to 24 days of paid annual leave
• Flexible working hours
• Manicure, massage, breakfast, and snacks in the office
• Wedding and new baby bonus
• Team building activities

About the Company

If you are interested in joining our diverse and dynamic team, we are looking forward to your application. Only short-listed candidates will be contacted.

Confidentiality of all applications is assured!

By submitting your application, you acknowledge that the Company will process the personal data contained in your CV, résumé and/or motivational letter for the purposes of managing the recruitment and selection process, in accordance with Regulation (EU) 2016/679 (General Data Protection Regulation), applicable data protection legislation and the Company’s Recruitment Privacy Notice.

As part of the application form, you will also be asked whether you agree to the Company retaining and using your personal data beyond the applicable six-month retention period, for a total period of up to 24 months following the completion of the recruitment process, so that you may be considered and contacted for future employment opportunities.

Providing this consent is entirely optional and will not affect your application for the current position.

You may withdraw your consent to the retention and use of your personal data for future employment opportunities at any time, without affecting the lawfulness of processing carried out before its withdrawal, by sending an email request to [email protected].

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Location: Sofia, Bulgaria (Hybrid)

Employment Type: Full-Time

Experience Level: Experienced