Data Engineer (Middle)
We’re looking for a Data Engineer to join our data team and help scale a high-load data infrastructure that powers analytics and marketing across multiple mobile products.
This role is about real impact: you’ll work with DWH on ClickHouse, build and optimize ETL/ELT pipelines, and ensure data reliability and scalability for business-critical decisions.
Key Responsibilities
Maintain and enhance our high-load DWH built on ClickHouse
Design, develop, and optimize low-level data marts for business-critical reporting
Support and improve our ETL/ELT pipelines for operational analytics
Ensure fault tolerance of our data infrastructure and cover key components with alerting
Support and optimize data storage, ensure cost-efficiency and scalability
Monitor and improve real-time data streaming via Push API
What we’re looking for:
2+ years of experience as a Data Engineer
Strong skills in Python and SQL
Hands-on experience with ClickHouse, PostgreSQL, Airflow, Kafka
Experience building and optimizing ETL/ELT and data marts
Understanding of high-load systems and real-time data pipelines
Confident in writing analytical SQL (data mart design and optimization experience is a plus)
Bonus points for experience with: Redis, Kafka, FastAPI, Grafana, Graylog, Nginx, GitLab CI/CD
Job Benefits
Flexible work environment: work remotely from home or in our office in Cyprus
Paid holidays and sick leave to prioritize your health and well-being
Competitive salary based on interview results and annual performance reviews
Bonus system tied to the company's success and performance
Opportunities to attend conferences, workshops, and meetups
English classes
Cool corporate parties and team-building events
Holiday Gifts: celebrate special occasions with thoughtful holiday gifts from the company
Free lunches in our offices: enjoy a pleasant time over a meal with your colleagues
Published on: 3/21/2026

AppQuantum
AppQuantum is an international mobile free-to-play game publisher. Our company was founded in 2017 and is successfully growing and scaling!
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