Mid - Senior MS SQL Engineer - ETL & Data Integration
InventYOU AB · Athens
We are looking for an MS SQL Engineer to join our team and design, develop and maintain data solutions on an on-premises Microsoft SQL Server environment. The role focuses on SQL development and SSIS-based ETL processes that support critical business operations.
You will work closely with data, development and business teams to ensure reliable, well-performing and well-documented data pipelines. The position is open to both medior and senior engineers.
Key Responsibilities
- Design, develop and maintain SSIS packages and ETL processes
- Write and optimise T-SQL code, including stored procedures, functions, views and triggers
- Monitor, troubleshoot and tune the performance of SQL Server databases and ETL jobs
- Design and maintain data models and database structures
- Ensure data quality, integrity and consistency across systems
- Schedule, deploy and support ETL jobs in an on-premises environment
- Analyse and resolve production issues and perform root cause analysis
- Collaborate with developers, analysts and business stakeholders to gather and refine requirements
- Document solutions and contribute to best practices and code reviews
Requirements
- Minimum 3 years of professional experience as an MS SQL / ETL Engineer or Developer (5+ years for senior level)
- Strong hands-on experience with Microsoft SQL Server and T-SQL
- Solid experience designing and developing SSIS packages
- Experience with query optimisation and performance tuning
- Good understanding of ETL principles, data warehousing and data modelling
- Experience working in on-premises environments
- Familiarity with version control and deployment practices for database and ETL code
- Strong analytical thinking and problem-solving skills
- Excellent debugging and troubleshooting abilities
- Strong attention to detail and a structured way of working
- Good communication and teamwork skills
Nice to Have
- Experience with SSRS and/or SSAS
- Experience with SQL Server Agent and job scheduling
- Experience with CI/CD for database and ETL deployments
- Experience in the financial services sector
- Microsoft certifications in data or SQL Server
You will be a great candidate for us if you
- Enjoy working with data and take pride in reliable, high-quality solutions
- Take ownership of your work from development to production
- Have a proactive approach to identifying and resolving performance and data issues
- Are comfortable working in Agile environments
- Enjoy collaborating with colleagues from both technical and business teams
Benefits
Why join inventYOU
- Work on challenging, data-intensive enterprise projects
- Use and deepen your expertise in the Microsoft data stack
- Collaborate with experienced engineering and data professionals
- Contribute to improving data engineering practices and standards
- Continue developing your career as a SQL and ETL specialist