Data Engineer

At Epignosis, we build workplace learning software that enables more than 70,000 teams worldwide to offer training to millions of people. Our portfolio of tools can be used by organizations of any size and includes TalentLMS - a zero-overhead cloud LMS, eFront - an enterprise LMS, TalentCards - a mobile app for training the deskless workforce, and TalentHR - a lightweight HRIS to manage people ops. We are competing with the world's top eLearning solutions and we aim at becoming world's #1.

We're on a mission to democratize training by developing simple, accessible, and affordable software. We count companies as customers and with more than 12 million users across 126 countries logging in to use our platforms, we are a much-loved global leader in learning tech. At home, we are quickly becoming one of the largest SaaS company to come out of Greece.

We are looking for a skilled Data Engineer to join our Data Team and play a key role in implementing our Data Transformation project. The ideal candidate will design, develop, and maintain scalable data pipelines and workflows to support analytics and business intelligence initiatives. Additionally, they will be responsible for managing data infrastructure, optimizing databases and schemas, and ensuring data integrity.

This role involves close collaboration with Developers, DevOps, AI Engineers and other cross-functional teams to optimize queries and databases, propose scalable architecture solutions, and identify data requirements that drive our services forward.

Responsibilities

As a Data Engineer, you will:

• Monitor and optimize database performance, implementing tuning measures while ensuring data integrity and security.
• Provide proactive and reactive data management support, including user training and troubleshooting.
• Work closely with developers to optimize queries and design efficient database schemas.
• Collaborate with AI Team to support AI-driven initiatives.
• Design, develop, and maintain ETL pipelines to efficiently process and integrate data from multiple sources.
• Partner with different team within the Engineering department to understand data needs and deliver data solutions.
• Implement data modeling techniques to create efficient schemas for relational and non-relational databases, such as Aurora, DynamoDB or other.
• Optimize data workflows and storage solutions to enhance performance and scalability.
• Ensure data quality and consistency through validation and cleaning processes.

Requirements

To be successful in this role as a Data Engineer, you should have:

• 3+ years of experience in data engineering or similar roles.
• Proficiency in Python and experience with Apache Spark for large-scale data processing.
• Proficiency in SQL and hands-on experience with database management systems.
• Experience with cloud technologies, particularly AWS (e.g., S3, Glue, Lambda).
• Strong understanding of databases, data lakes, and data warehousing principles.
• Experience with NoSQL databases (e.g., MongoDB, DynamoDB).
• Strong data modeling skills to support analytical and reporting needs.
• Experience in designing and optimizing ETL/ELT pipelines.
• Familiarity with data warehousing solutions and BI tools (e.g., Tableau, Power BI, QuickSight).
• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Strong analytical and problem-solving abilities.
• Multi-constrained optimization considering performance, cost, value, complexity, ease of maintenance and tradeoffs thereof.
• Excellent communication and teamwork skills.
• Ability to work in a fast-paced environment and manage multiple priorities.

Bonus points

• Experience with big data technologies (e.g., Hadoop, Kafka).
• Familiarity with AWS Athena and Redshift will be a plus. 

Benefits

The most important thing we offer is a safe and healthy professional environment, giving you the opportunity to work on products that positively impact millions globally. Become part of Epignosis, a diverse group of smart, fun, and GIF-loving professionals in offices worldwide, including the U.S., the U.K., Greece, and Cyprus Our employees enjoy benefits that enhance productivity and contribute to their professional development. Apart from that, we also offer:

• Competitive compensation packages – because great work deserves great rewards.
• Private health insurance plan – your well-being matters to us, on and off the clock.
• Meal allowance – fuel your day, your way.
• Complimentary meals at the office – think daily breakfast spreads and lunch catered three times a week. Yes, we're serious
• Access to our in-house blood bank – giving back is in our blood (literally).
• Professional development initiatives – we're not just creating LMSs for others, we're also learners ourselves
• Gorgeous office space or hybrid work options – work where you thrive, whether that's in our beautiful HQ or from your own creative corner.
• A vibrant working environment – surrounded by brilliant, quirky, passionate minds.
• Work/life balance – we go big AND we go home