Aon · Technology

Aon Data Analyst Interview

Complete guide to the Data Analyst interview at Aon — real questions, insider tips, salary data, and stage-by-stage preparation.

4-8 weeks from application to offer

5 stages

12 questions

Practise this interview free

Overview

Interviewing for Data Analyst at Aon

Interviewing for a Data Analyst position at Aon is a distinct experience from applying to the same role elsewhere. Aon with 50,000+ employees, has built a structured hiring process that reflects both the demands of the Data Analyst role and the company's own values and culture. The process is designed to assess not just whether you can do the job technically, but whether you'll thrive in Aon's specific working environment.

For Data Analysts specifically, Aon tends to emphasise practical problem-solving and technical depth alongside cultural fit. You should expect a process that tests your ability to work with tools like SQL (complex queries, optimisation, window functions), Python (pandas, NumPy for data manipulation), Data visualisation (Tableau, Power BI, Looker) in realistic scenarios, not just abstract theory. The interviewers are typically people you'd be working with directly, so the conversation goes both ways — they're evaluating you, but you're also getting a genuine sense of the team and day-to-day work.

Understanding what Aon values — and how that translates into their interview expectations for a Data Analyst — gives you a significant advantage. This guide breaks down the full process, the specific questions you're likely to face, and how to prepare effectively.

Process

How Aon interviews Data Analysts

Aon's interview process for Data Analyst roles typically runs 4-8 weeks and involves 5 distinct stages. The process begins with online application and cv screening and progresses through increasingly focused assessments. Each stage is designed to evaluate different aspects of your suitability — from baseline qualifications through to cultural alignment and role-specific capability.

For Data Analyst candidates specifically, expect the technical stages to focus on your hands-on ability with SQL (complex queries, optimisation, window functions), Python (pandas, NumPy for data manipulation), Data visualisation (Tableau, Power BI, Looker), Excel (pivot tables, formulas, advanced features). Aon typically includes a practical assessment — this could be a coding challenge, a system design discussion, or a technical case study depending on the seniority level. The behavioural stages will probe your collaboration style and how you handle ambiguity, since Data Analysts at Aon work across teams regularly.

Online application and CV screening

Tailor your application specifically for the Data Analyst role at Aon. Highlight experience with SQL (complex queries, optimisation, window functions), Python (pandas, NumPy for data manipulation), Data visualisation (Tableau, Power BI, Looker) and use language that mirrors their job description. Aon receives high volumes of applications, so a generic CV will be filtered out.

First-round interviews (case discussions and HR thinking)

Prepare concrete examples of your Data Analyst work. Be ready to solve problems live — talk through your reasoning, consider edge cases, and demonstrate how you'd use SQL (complex queries, optimisation, window functions) and Python (pandas, NumPy for data manipulation).

Second-round interviews (complex cases and strategic discussion)

Final round with senior consultant or director on career vision

This stage assesses your strategic thinking and cultural fit at Aon. Prepare to discuss where you see yourself in 3-5 years and how the Data Analyst role fits your career goals. Ask thoughtful questions about Aon's direction and team structure.

Optional analytical or case assessment

Qualities

What Aon looks for in Data Analysts

Analytical rigour and HR consulting thinking

Aon values analytical rigour and hr consulting thinking because Analytical rigour and HR consulting thinking.

As a Data Analyst, demonstrate this through Do you form hypotheses and test them systematically? Can you break down a business question into data problems?.

Benefits and compensation acumen

Aon values benefits and compensation acumen because Benefits and compensation acumen.

For the Data Analyst role, show this by sharing examples where you used SQL (complex queries, optimisation, window functions) or Python (pandas, NumPy for data manipulation) to deliver measurable results.

Communication clarity and ability to advise on complex matters

Aon values communication clarity and ability to advise on complex matters because Communication clarity and ability to advise on complex matters.

As a Data Analyst, demonstrate this through Can you explain technical findings to non-technical people? Are your dashboards clear and actionable?.

Collaborative approach with strong engagement skills

Aon values collaborative approach with strong engagement skills because Collaborative approach with strong engagement skills.

SQL fluency

For Data Analyst roles specifically, sql fluency is essential because Can you write complex queries efficiently? Do you think about query performance, joins, and aggregations intuitively?.

Prepare 2-3 examples from your experience that clearly demonstrate sql fluency. Aon's interviewers will probe this in behavioural questions.

Questions

Aon Data Analyst interview questions

Tell us about your background and interest in Aon.

Aon asks this to assess your fit for the Data Analyst role and alignment with their values.

Frame your answer around your Data Analyst experience specifically. Reference Aon's values or recent projects to show you've done your research.

Describe a project involving benefits, compensation, or pensions.

Aon asks this to assess your fit for the Data Analyst role and alignment with their values.

Frame your answer around your Data Analyst experience specifically. Reference Aon's values or recent projects to show you've done your research.

Give an example of when you analysed HR or compensation data.

Aon asks this to assess your fit for the Data Analyst role and alignment with their values.

Frame your answer around your Data Analyst experience specifically. Reference Aon's values or recent projects to show you've done your research.

How do you approach benefits or compensation strategy?

Aon asks this to assess your fit for the Data Analyst role and alignment with their values.

Frame your answer around your Data Analyst experience specifically. Reference Aon's values or recent projects to show you've done your research.

Video Interview Practice

Choose your interview type

Your question

“Tell me about yourself and what makes you a strong candidate for this role.”

30s preparation 2 min recording Camera + mic

Preparation

How to prepare for your Aon Data Analyst interview

Preparing for a Data Analyst interview at Aon requires a dual focus: you need to master the role-specific technical requirements and understand how Aon operates as an organisation. Start by thoroughly reviewing the job description and mapping your experience against every requirement. For each skill or qualification listed, prepare a specific example from your career that demonstrates competence — ideally with quantifiable outcomes.

On the technical side, refresh your knowledge of SQL (complex queries, optimisation, window functions), Python (pandas, NumPy for data manipulation), Data visualisation (Tableau, Power BI, Looker), Excel (pivot tables, formulas, advanced features). Aon will likely test these in practical scenarios, so practice working through problems out loud. Review Aon's tech stack or engineering blog if publicly available — understanding their technical choices helps you frame your answers in their context rather than speaking generically.

Research Aon beyond their website: read recent news, check their Glassdoor reviews (their rating is 3.9/5), and look at what current employees say about working there. Understanding their culture helps you frame your answers authentically and ask informed questions — interviewers notice when a candidate has done their homework versus when they're winging it.

Preparation checklist

1Review the Data Analyst job description in detail and map each requirement to a specific example from your experience
2Research Aon's recent news, strategic direction, and consulting & advisory position over the last 12 months
3Prepare 6-8 examples using situation-action-result structure covering: analytical rigour and hr consulting thinking, benefits and compensation acumen, communication clarity and ability to advise on complex matters
4Practise discussing your experience with SQL (complex queries, optimisation, window functions), Python (pandas, NumPy for data manipulation), Data visualisation (Tableau, Power BI, Looker), Excel (pivot tables, formulas, advanced features) in concrete, outcome-focused terms
5Prepare 3-5 thoughtful questions about the Data Analyst role, team structure, and Aon's direction — avoid questions answered on their website
6Review Aon's values and culture: Analytical rigour and HR consulting thinking and Benefits and compensation acumen — prepare examples showing alignment
7Set up your development environment and practise technical problems in SQL (complex queries, optimisation, window functions) and Python (pandas, NumPy for data manipulation)
8Plan your interview logistics: know the format (in-person/remote), dress code, and who you're meeting — check LinkedIn for interviewer backgrounds if known

The role

Working as a Data Analyst at Aon

A typical day as a Data Analyst at Aon blends the core responsibilities of the role with Aon's specific working culture and pace. In an organisation of 50,000+ employees, you'd be part of a structured team with clear reporting lines, regular meetings, and established processes. Aon's consulting & advisory focus means the work carries a results-oriented rhythm where impact is measured and visible.

Your day would typically involve writing sql queries to extract and analyse data. data analysts spend 40% of their day in sql — pulling data from data warehouses, aggregating metrics, building fact tables. sql proficiency directly. At Aon specifically, this work is shaped by their emphasis on analytical rigour and hr consulting thinking and benefits and compensation acumen, so expect collaborative working, regular check-ins, and an environment where proactive contribution is noticed and rewarded.

Compensation

Data Analyst salary at Aon

Typical range

£38,000–£55,000 (typically above market average)

Data Analyst salaries at Aon tend to sit at the upper end of the UK market. Aon offers structured pay bands with clear progression tied to performance reviews and promotions. The UK average for Data Analysts ranges from £24,000–£35,000 at junior level to £60,000–£90,000+ for experienced professionals, and Aon's positioning within that range reflects their consulting & advisory standing and location.

Beyond base salary, Aon offers a benefits package that includes Competitive salary with performance bonus (10-20% of base), Private health insurance with family coverage options, Pension scheme with generous employer contribution (8%+), Flexible working and parental leave (18+ weeks), Professional development budget and training. For Data Analysts specifically, the tech-specific perks like conference budgets, learning stipends, and flexible working arrangements can add significant value.

Application

How to apply for Data Analyst at Aon

Getting through the door for a Data Analyst role at Aon starts well before the interview. Aon typically advertises roles on their careers page and major job boards, but for competitive positions, a direct referral from a current employee can significantly improve your chances. If you know anyone at Aon — or can connect through LinkedIn or industry events — a warm introduction carries more weight than a cold application.

Your application should speak directly to the Data Analyst requirements and Aon's stated values. Include specific technical projects, tools (SQL (complex queries, optimisation, window functions), Python (pandas, NumPy for data manipulation), Data visualisation (Tableau, Power BI, Looker)), and quantified outcomes. Aon's technical reviewers will scan for evidence of hands-on delivery, not just theoretical knowledge.

Write a cover letter that names Aon and the Data Analyst role explicitly — generic applications are obvious and get filtered. Reference something specific about Aon: a recent project, their market position, or a strategic direction that aligns with your experience. Keep it to one page and lead with your strongest relevant achievement.

Common mistakes to avoid

1Applying with a generic CV that doesn't mention Aon or the specific Data Analyst requirements — tailoring your application is non-negotiable here
2Not researching Aon's values and interview style — candidates who can't articulate why they want to work specifically at Aon rarely progress past first-round
3Preparing only generic Data Analyst examples without connecting them to Aon's consulting & advisory context and priorities
4Underestimating the technical depth required — Aon expects you to demonstrate practical ability, not just theoretical knowledge
5Failing to prepare thoughtful questions — asking nothing, or asking questions easily answered on Aon's website, signals a lack of genuine interest in the role

FAQs

Frequently asked questions

How long does the Aon Data Analyst interview process take?

Aon's interview process for Data Analyst roles typically takes 4-8 weeks. This varies depending on the seniority of the role and the number of candidates at each stage. Some candidates report faster timelines when there's an urgent hiring need.

What salary can a Data Analyst expect at Aon?

Data Analyst salaries at Aon range from £24,000–£35,000 for junior positions to £60,000–£90,000+ for experienced professionals. Aon generally offers competitive packages with structured pay progression.

What does Aon look for in Data Analyst candidates?

Aon prioritises analytical rigour and hr consulting thinking, benefits and compensation acumen, communication clarity and ability to advise on complex matters when hiring Data Analysts. Beyond technical competence, they value candidates who align with their company culture and can demonstrate measurable impact from previous roles.

Is it hard to get a Data Analyst job at Aon?

Aon is a competitive employer for Data Analyst positions. As a major employer, they receive high volumes of applications, so standing out requires a tailored application and thorough preparation. The key differentiator is preparation: candidates who research Aon specifically and connect their experience to the role's requirements consistently outperform those who don't.

What's the best way to prepare for a Data Analyst interview at Aon?

Start by researching Aon's values, recent news, and consulting & advisory position. Prepare 6-8 structured examples from your Data Analyst experience covering analytical rigour and hr consulting thinking and benefits and compensation acumen. Practise discussing your technical skills (SQL (complex queries, optimisation, window functions), Python (pandas, NumPy for data manipulation), Data visualisation (Tableau, Power BI, Looker)) with specific outcomes. Prepare thoughtful questions about the role and team.

Does Aon offer graduate or entry-level Data Analyst positions?

Aon typically offers structured graduate programmes and entry-level Data Analyst pathways. Check their careers page for current openings — application windows for graduate schemes often close 6-12 months before the start date.

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