Ciklum is looking for a Expert Data Engineer to join our team full-time in Bulgaria.
We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.
About the role:
As a Expert Data Engineer, become a part of a cross-functional development team engineering experiences of tomorrow.
Responsibilities:
- Designing, developing, and deploying Power BI solutions, providing advanced data analytics, and creating dashboards and reports that deliver key insights to the business
- Data models design and implementation
- Optimize reports and dashboards for better performance by improving query speed and ensuring efficient data model design
- Contributes design, code, configurations, manage data ingestion, closed to real-time processing, batch processing, ETL across multiple data storages and complex ETL pipelines
- Responsible for performance tuning of complicated SQL and DAX queries, including deep SQL query optimizations
- Develop, execute, and maintain data processing workflows using Azure Synapse notebooks
- Manage and optimize data storage solutions in Azure Data Lake Storage (ADLS), working extensively with Parquet files and applying advanced optimization techniques (e.g., partitioning, compression)
- Identify gaps and improve the platform’s quality, robustness, maintainability, and speed
- Cross-train other team members on technologies being developed, while also continuously learning new technologies from other team members
- Contribute in the Unit’s activities and community building, participate in conferences, and provide excellence in exercise and best practices
Requirements:
We know that sometimes, you can’t tick every box. We would still love to hear from you if you think you’re a good fit!
- 3+ years of experience in developing BI solutions with Power BI
- Proficient in Power BI Desktop and Power BI Service, including report and dashboard creation, data transformations, and DAX formulas
- Strong expertise in DAX (Data Analysis Expressions) for complex calculations
- Experience with Power Query for data transformations and ETL processes
- Solid understanding of data modeling principles and best practices
- 3+ years of experience coding in SQL(Azure SQL DB or MSSQL preferable), solid CS fundamentals including data structure and algorithm design
- Proven hands-on experience building, managing, and optimizing complex ETL pipelines
- Strong experience with Azure Data Lake Storage (ADLS) and deep knowledge of Parquet file optimization techniques
- Demonstrated experience writing and optimizing code within Azure Synapse notebooks
- 2+ years contributing to production deployments of large backend data processing and analysis systems
- Experience in data integration and ETL processes
- Proficient with Azure Data Services (Azure Data Factory, Azure Synapse Analytics, etc.)
- Strong problem-solving and analytical skills, with a keen attention to detail
- Excellent communication skills, both written and verbal, with the ability to present complex data in a clear and concise manner
- Experience in working with cross-functional teams and collaborating with stakeholders at various levels of the organization
- Knowledge of professional software engineering best practices for the full software
- Knowledge of Data Warehousing, design, implementation and optimization
- Knowledge of Data Quality testing, automation and results visualization
- Knowledge of the development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations
- Experience participating in an Agile software development team, e.g. SCRUM
- Experience designing, documenting, and defending designs for key components in large distributed computing systems
- A consistent track record of delivering exceptionally high-quality software on large, complex, cross-functional projects
- Demonstrated ability to learn new technologies quickly and independently
- Ability to handle multiple competing priorities in a fast-paced environment
What’s in it for you?
- Regular salary reviews based on performance
- Corporate events: webinars, offline parties, and meetups
- Internal Mobility Program
- Tailored education path (including full access to Udemy, certifications, etc.)
- 25 paid days off: 20 business days of vacation per calendar year + 5 undocumented sick leave days
- Additional health insurance
- 100% company-covered Multisport card, with discounts available for family members
About us:
At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
Since expanding to Bulgaria in 2022, we’ve been building a fast-growing team that thrives on learning, collaboration, and innovation. Join us on this exciting journey and help shape the future of our delivery center.
Explore, empower, engineer with Ciklum!
Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.
#LI-MH1
Skills Required
- 3+ years of experience developing BI solutions with Power BI
- Proficiency with Power BI Desktop and Power BI Service, including reports, dashboards, data transformations, and DAX
- Strong expertise with DAX for complex calculations
- Experience with Power Query for data transformations and ETL
- Understanding of data modeling principles and best practices
- 3+ years of SQL coding experience, preferably with Azure SQL Database or Microsoft SQL Server
- Computer science fundamentals, including data structures and algorithm design
- Hands-on experience building, managing, and optimizing complex ETL pipelines
- Strong experience with Azure Data Lake Storage and Parquet optimization techniques
- Experience writing and optimizing code in Azure Synapse notebooks
- 2+ years contributing to production deployments of large backend data processing and analysis systems
- Experience with data integration and ETL processes
- Proficiency with Azure Data Services, including Azure Data Factory and Azure Synapse Analytics
- Strong problem-solving and analytical skills with attention to detail
- Excellent written and verbal communication skills
- Experience collaborating with cross-functional teams and stakeholders
- Knowledge of professional software engineering best practices
- Knowledge of data warehousing design, implementation, and optimization
- Knowledge of data quality testing, automation, and results visualization
- Knowledge of the software development life cycle, coding standards, code reviews, source control, builds, testing, and operations
- Experience working in an Agile software development team, such as Scrum
- Experience designing, documenting, and defending components of large distributed computing systems
- Track record of delivering high-quality software on large, complex, cross-functional projects
- Ability to learn new technologies quickly and independently
- Ability to manage multiple competing priorities in a fast-paced environment
What We Do
Ciklum is a global Digital Solutions Company for Fortune 500 and fast-growing organisations alike around the world. The company is headquartered in London and has software development centres and branch offices in the United States, Spain, Switzerland, Denmark, Israel, Poland, Ukraine, Czech Republic, Slovakia, Romania, UAE and Pakistan. Ciklum builds tailored digital solutions that leverage emerging technologies for such clients as Just Eat, Flixbus, Metro Markets, EFG International, Zurich Insurance, Lottoland and others. For more information about us visit www.ciklum.com







