Reed

Senior Developer

Aon
EC3V4AN
2 days ago
hybrid

Skills & Technologies

BackendSoftware DevelopmentWeb DevelopmentWeb DeveloperAngularDevOpsAgileUnit TestingE2E TestingSQLSQL ServerAzureCloudDeploymentBenefitsProblem SolvingAdaptability

Job Description

Responsibilities Senior Web Developer

Are you looking for a role where you can own architecture and not just tickets?

Do you want to build mission-critical modelling software used by leading insurers?

This is a hybrid role with the flexibility to work both virtually and from our London office.

Aon is in the business of better decisions

At Aon, we shape decisions for the better to protect and enrich the lives of people around the world.

As an organization, we are united through trust as one inclusive team and we are passionate about helping our colleagues and clients succeed.

What the day will look like

Your days will be varied but will likely include

Working on developing our product by writing code, testing, debugging, analysing, reviewing and all other aspects of the software development lifecycle

Working with other developers, actuaries, devops and other teams to ensure successful delivery of software

Providing support to both internal and external stakeholders

Supporting and potentially leading product deployments

Contributing to architecture, process and quality improvement discussions

Engaging in ongoing professional development

How this opportunity is different

This is your opportunity to sell the role! What makes Aon and the role different, and more attractive, than our competitors? Bring the role to life by outlining who they will be collaborating with, and equally who will be supporting them

Skills and experience that will lead to success

Strong communication – both technical and non-technical

Problem solving – digging into the why

Adaptability – open to new tech as the stack evolves

NET Backend web development

SQL Server / Azure SQL

Unit testing, e.g. xUnit

Security & authentication

Good to have

Experience leading or guiding junior colleagues

Containerised application development

Cloud (Azure or equivalent)

Scalable deployment experience

Modern UI web framework experience (Angular or equivalent)

Distributed message queue

System / E2E testing

How we support our colleagues

In addition to our comprehensive benefits package, we encourage an inclusive workforce. Plus, our agile environment allows you to manage your wellbeing and work/life balance, ensuring you can be your best self at Aon. Furthermore, all colleagues enjoy two “Global Wellbeing Days” each year, encouraging you to take time to focus on yourself. We offer a variety of working style solutions for our colleagues as well.

Our continuous learning culture inspires and equips you to learn, share and grow, helping you achieve your fullest potential. As a result, at Aon, you are more connected, more relevant, and more valued.

Aon values an innovative and inclusive workplace where all colleagues feel empowered to be their authentic selves. Aon ...

Company & Role Analysis

JobSeeker+
Likely perks
Private MedicalPension25+ Days HolidayStock OptionsLearning BudgetFlexible Hours
Culture & working style

Neutral 2–4 sentence summary of what working at this company is like, drawn from public reviews and press coverage. Tone, collaboration style, pace, benefits highlights.

Market salary range

£45,000 – £60,000 (Glassdoor, Levels.fyi, 2025)

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