Lead Data Engineer

About Us:

LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It's how we've contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services – and our open-access model – we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.

LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across EMEA, North America, Latin America and Asia Pacific. We employ 25,000 people globally, more than half located in Asia Pacific.

Role Summary:

We're looking for a strategic and hands-on Lead Data Engineer who can own the data ecosystem, drive architectural decisions, and ensure robust, scalable data workflows. This role combines technical leadership with deep engineering expertise, perfect for someone who thrives on building reliable systems and mentoring others.

What You'll Do:

• Architect, design, and maintain complex data pipelines in Azure Data Factory, ensuring efficiency, scalability, and reliability.

• Build and optimize data models and transformations using SQL Server.

• Develop Python scripts for automation, data processing, quality checks, and integration tasks.

• Implement and optimize Databricks workflows for advanced analytics, Spark-based processing, and collaborative notebook development.

• Fix pipeline issues and implement long-term improvements that strengthen data quality and system resilience.

• Collaborate with multi-functional teams to align data solutions with business objectives and decision-making needs.

• Mentor junior engineers and establish best practices for data engineering and governance.

What You'll Bring:

Must-Have Skills

• Expert-level experience with Azure Data Factory for orchestrating complex ETL/ELT workflows.

• Strong proficiency in SQL Server, including performance tuning and advanced query optimization.

• Practical Python (pyspark) experience for data manipulation, automation, and pipeline logic.

• Hands-on expertise with Databricks for Spark-based processing, data analytics, and notebook workflows.

• Proven ability to design scalable data architectures and lead technical initiatives.

Nice-to-Have Skills

• Familiarity with AWS Athena for interactive query processing.

• Experience with Terraform for infrastructure as code and managing cloud resources.

• Knowledge of data governance, security standard methodologies, and distributed systems.

Soft Skills We Value

• Leadership attitude - able to guide teams and influence technical direction.

• Proactive problem-solving and a focus on business impact.

• Strong communication and ability to drive alignment across engineering and product teams.

• Ownership and accountability for quality, reliability, and scalability.

Your Package When Joining Gdynia Team:

• Bonus: bonus plan assigned to every position
• Wellbeing: monthly wellness and work-from-home allowance, and employee assistance program
• Lunch card: meal allowance on personal lunch card provided monthly
• Healthcare: private medical care with Medicover, premium package fully covered by employer and life insurance with Generali
• Future: corporate pension plan supported by Fidelity International offering additional 5% of base salary to invest in selected funds, and LSEG Employee Share Purchase plan available
• Reward and Recognition: additional awards and vouchers available for extra achievements
• Referral: Bonus between 8,000 to 10,000 PLN for successful recommendation of a new colleague
• Development: E-learning platforms access with a range of training and certified courses
• LSEG Products: availability to access to real-time economic data through our flagship Workspace platform
• Diversity: Inclusive culture built by colleagues from over 40 countries representing various age, gender, race, and beliefs
• Charity: 2 additional days off for voluntary jobs
• Office: brand new, sustainable office with cafeteria and chillout space. Location 3T Office, Gdynia is less than 200m to PKM station and a walking distance to SKM station. Underground car park with 122 spaces for LSEG employees
• Activities: sport teams and social events to join e.g. weekly yoga classes in the office
• Company events: Annual Summer and Winter Parties for colleagues and Family Day for employees with partners and children

Learn more about life and purpose of our company directly from the Gdynia colleagues' video:

Follow us on Facebook, Carers at LSEG Gdynia

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone's race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

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