Applications Developer — Data Pipelines & Trading Systems

Marsh McLennan; Greater London; On-site; GBP 60,000 - 85,000; Full time

Job summary

Mercer based in London is seeking an Applications Developer to join our technology team and help improve robustness, stability, and performance of data systems. You will work across the technology platform, focusing on data pipelines and the data lake used for regulatory reporting.

We expect strong C# and Python skills, solid SQL, and a passion for software development. Effective communication and a proactive, quality-driven mindset are essential for success.

Qualifications

• BSc or MSc in a financial, technological, mathematical, or scientific discipline with strong analytical foundation.
• Current experience with C# and Python and a passion for software development.
• Strong SQL skills.
• Experience in designing robust data flows and systems.
• Strong, clear, and concise communication skills, both verbal and written.
• A strong sense of responsibility and commitment to quality.
• Self-driven, motivated work ethic.
• Energetic and enthusiastic personality.

Responsibilities

• Hands-on role focused on improving robustness, stability, and performance of technology systems.
• Work across the technology platform with initial focus on data pipelines.
• Redesign and enhance data processes to be fault tolerant, scalable, and efficient.
• Collaborate with Head of Production, support teams, and broader Engineering.
• Participate in coding and code reviews and contribute to architectural decisions.

Skills

C#

Python

SQL

Data flows

Communication

Self-driven

Analytical mindset

Education

BSc or MSc (financial/technical/mathematical/scientific)

Tools

Apache Airflow

Databricks

Job description

Mercer based in London is seeking an Applications Developer to join our technology team and help improve robustness, stability, and performance of data systems. You will work across the technology platform, focusing on data pipelines and the data lake used for regulatory reporting.

We expect strong C# and Python skills, solid SQL, and a passion for software development. Effective communication and a proactive, quality-driven mindset are essential for success.