Senior Developer

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 is proud to be an equal opportunity workplace.

Aon provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, creed, sex, sexual orientation, gender identity, national origin, age, disability, veteran, marital, domestic partner status, or other legally protected status.

We are committed to providing equal employment opportunities and fostering an inclusive workplace. If you require accommodations during the application or interview process, please let us know. You can request accommodations by emailing us at ReasonableAccommodations@Aon.com or your recruiter. We will work with you to meet your needs and ensure a fair and equitable experience.

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