Sr. Data Platform Engineer

Company:

Marsh

Description:

What can you expect?
At MercerTech, the DnAi Platform Engineering team is seeking a Sr. Data Platform Engineer with strong experience in ETL, AWS, and PySpark. This key role involves leading the design, implementation, and operation of data platforms in hybrid environments (both on-prem and cloud), using modern technologies aligned with MMC’s architecture and security standards.

You’ll work with cross-functional teams to define robust data solutions, optimize pipelines, and enable a scalable infrastructure that supports data-driven decision-making across the organization.

We will count on you to:

• Design and implement a robust data platform using AWS, PySpark, and ETL tools.
• Manage and integrate cloud and SaaS solutions such as Databricks, Snowflake, and IDMC.
• Optimize the technology stack (PySpark, NiFi, etc.) to maximize performance and scalability.
• Lead the creation of efficient, high-quality data pipelines, providing technical guidance to development teams.
• Identify the best AWS tools and services to meet project-specific requirements.
• Collaborate with business, analytics, architecture, security, and infrastructure teams.
• Support platform modernization and the adoption of new technologies.

What you need to have:

• Degree in Engineering, Computer Science, or a related field.
• Proven experience in data engineering with strong expertise in ETL, AWS, and PySpark.
• Hands-on knowledge of tools like Databricks, Snowflake, IDMC, Glue,  among others.
• Ability to design data architectures based on business and technical requirements.
• Strong technical leadership and effective communication skills with diverse teams.

What makes you stand out

• Solid experience with complex ETL pipelines.
• Successful track record of projects deployed on AWS.
• Proficiency in PySpark for processing large-scale datasets.
• Familiarity with data governance and quality tools such as IDMC.

Why join our team:

• We help you be your best through professional development opportunities, interesting work and supportive leaders.
• We foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have impact for colleagues, clients and communities.
• Our scale enables us to provide a range of career opportunities, as well as benefits and rewards to enhance your well-being.

Marsh McLennan (NYSE: MMC) is a global leader in risk, strategy and people, advising clients in 130 countries across four businesses: Marsh, Guy Carpenter, Mercer and Oliver Wyman. With annual revenue of $24 billion and more than 90,000 colleagues, Marsh McLennan helps build the confidence to thrive through the power of perspective. For more information, visit marshmclennan.com, or follow on LinkedIn and X.

Marsh McLennan is committed to creating a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age, background, disability, ethnic origin, family duties, gender orientation or expression, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law.

Marsh McLennan is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh McLennan colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office-based teams will identify at least one “anchor day” per week on which their full team will be together in person.