Mid - Senior MS SQL Engineer - ETL & Data Integration

Location: Athens, Attica, Greece

Workplace: hybrid

Employment Type: full

Description

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