Aon is a 10,000+ person risk and human capital advisory firm operating across 120+ countries. The tech stack reveals a hybrid legacy-to-cloud transition: heavy reliance on AS/400, COBOL, and SAS alongside modern Python, Databricks, and AWS. Active adoption of Databricks and Snowflake signals a shift toward data-driven decisioning, while the hiring mix (sales-heavy with 567 roles, plus growing data and healthcare functions) reflects expansion into analytics-led advisory and benefits consulting.
Tech Stack 152 technologies
Core StackSAS Power BI FastAPI Python AWS PySpark GraphQL Databricks Apache Spark Terraform Scala GitLab Azure DevOps Jira Confluence Word Excel PowerPoint AS/400 COBOL SQL Windows Polars Fastify Ruff Spark SQL Azure Repos Azure GCP Microsoft Office+117 more
What Aon Is Building
◆Challenges
- Identifying growth opportunities
- Process inefficiencies
- Growth and retention of portfolio
- Standardizing processes
- Compliance with local regulations
- Improving operational processes
- Complex risk management challenges
- Renewal process
- New business development
- New business opportunities
▲Active Projects
- New business development
- International and regional development initiatives
- Clinical strategy development
- Pricing strategy implementation
- Health analytics intelligence data warehouse implementation
- Overseeing annual compensation cycle
- Reviewing clients’ employee benefits requirements
- Client service delivery initiatives
- Design parametric solutions for natural events
- Claims data analytics
Hiring Activity
Steady1,600 roles · 650 in 30d
Department
Seniority
Notable leadership hires: Sales Director, Relationship Lead, Risk Director, Account Director, Head of Specialty Solutions
Company intelligence
