QA Engineer (Data Stack)

Why this role matters

As a Quality Assurance Engineer, you will join the Trading Data Flow team, responsible for integrating and processing trading-related data across Exness. You will be actively involved in the projects and initiatives of our cross-functional team.

We develop a range of data products, including a Data Warehouse (DWH), data integration and streaming tools, and APIs. We collaborate with other teams to collect data from various sources and provide internal customers with data marts, aggregated and streaming data. These solutions support data-driven decision-making and contribute to business development at Exness.

You will take ownership of the end-to-end testing process, including defining test strategies, improving tools and processes, performing validation, and running E2E test suites. Working in a highly collaborative environment, you will help the development team move faster with greater confidence in quality.

We expect you to dive deep into our data and business domain, understand the MetaTrader data model and the business logic behind our data marts, assist developers in investigating bugs, occasionally perform data analysis, and proactively suggest improvements.

We are looking for a versatile QA Engineer who is ready to contribute to the team's success. In return, you can expect your contributions to be valued and recognised.

The role is based in our Limassol office, Cyprus. In case of relocation, we offer full relocation support for you and your family to make your move smooth and worry-free.

What you'll actually do

• Collaborate in the planning, design, development, deployment, and enhancements of data integration products and DWH
• Develop, construct and maintain test suites to verify the validity and accuracy of Data Integration and ETL processes
• Drive AI integration (e.g., agents, LLMs) across QA processes, including monitoring, testing, data quality assurance, and automated code review
• Collaborate with the team to define and describe data policies, standards, and guidelines for other teams to connect their data sources
• Collaborate with the team on designing and implementing reconciliation, monitoring, alerting, and other data quality processes
• Investigate with the team data quality issues and work on data quality improvement
• Ensure data solutions quality will support business requirements
• Help with the definition and implementation of the best practices within the team that ensure the quality of the data solutions
• Collaborate with the team members on troubleshooting and resolving issues
• Analyze and test new features before the kick-off meetings
• Participate in user acceptance testing

Who we’re looking for

• 4+ years of proven experience as a Quality Assurance Engineer
• Proven experience leveraging AI tools and agents (e.g., Cursor, Cursor, Claude Code, Codex) to enhance QA efficiency and process orchestration
• Expert SQL knowledge (especially in ClickHouse) is a must-have
• Automation experience with Python (pytest)
• Experience with data streaming products (like Kafka Connect, Flink) is a must-have
• Hands-on testing experience in working with stream processing systems is a plus
• Strong Experience with Docker/k8s is a plus
• Experience with Grafana, PagerDuty, Terraform is a plus
• Understanding of data modeling, warehousing, ETL, and data integration techniques
• Experience influencing software engineers with the best practices within your team
• Excellent analytical and problem-solving skills
• Result-driven orientation (prioritizing, taking the initiative, taking ownership)
• Excellent verbal and written communication skills
• Spoken and written English – upper-intermediate level or above
• Spoken and written Russian – upper-intermediate level or above (optional)

What we offer along the way

• Competitive salary and annual performance bonus
• Full relocation support for you and your family — flights, housing, visas, and legal assistance included
• Top-tier health insurance with full family coverage — medical, dental, vision, mental health — plus life insurance for peace of mind
• Unlimited learning opportunities: external courses, English lessons, career and leadership development
• Education allowance covering school and kindergarten fees
• 21 working days of annual leave, plus public holidays and fully paid sick, maternity, and paternity leave
• Employee appreciation program: branded gifts, celebration budgets for weddings, newborns, and milestones
• “Get to know Team” trips — meet colleagues across our global hubs, along with company-wide offsites that raise the bar
• Employee share scheme — grow with us
• Branded MINI Cooper Countryman company car and private parking
• Free in-house sports clubs, Sanctum Club gym access, and jet skis
• Access to a Corporate doctor
• Exclusive discount program with cafes, gyms, and local services
• Expat tax perks: up to 50% income tax exemption
• Support with the naturalisation process for relocated employees

What your journey looks like

1. Intro call with Recruiter (30 minutes)
2. English check (if needed)
3. Tech interview & Live-coding (90 minutes)
4. Behavioural interview (60 minutes)