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 role is a fantastic opportunity to work with modern technology, including .NET 10, to shape the next generation of our product. Youu2019ll join a tight-knit, highly collaborative team where your ideas are heard and you have real ownership from day one.
Skills and experience that will lead to success
Strong communication u2013 both technical and non-technical
Problem solving u2013 digging into the why
Adaptability u2013 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
#LI-JK1
#LI-HYBRID
2577611
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 role is a fantastic opportunity to work with modern technology, including .NET 10, to shape the next generation of our product. Youu2019ll join a tight-knit, highly collaborative team where your ideas are heard and you have real ownership from day one.
Skills and experience that will lead to success
Strong communication u2013 both technical and non-technical
Problem solving u2013 digging into the why
Adaptability u2013 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
#LI-JK1
#LI-HYBRID”, “datePosted”: “2026-04-30”, “hiringOrganization”: { “@type”: “Organization”, “name”: “AON”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__417939831__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=4” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “London” } } }
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 role is a fantastic opportunity to work with modern technology, including .NET 10, to shape the next generation of our product. Youu2019ll join a tight-knit, highly collaborative team where your ideas are heard and you have real ownership from day one.
Skills and experience that will lead to success
Strong communication u2013 both technical and non-technical
Problem solving u2013 digging into the why
Adaptability u2013 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
#LI-JK1
#LI-HYBRID
2577611
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 role is a fantastic opportunity to work with modern technology, including .NET 10, to shape the next generation of our product. Youu2019ll join a tight-knit, highly collaborative team where your ideas are heard and you have real ownership from day one.
Skills and experience that will lead to success
Strong communication u2013 both technical and non-technical
Problem solving u2013 digging into the why
Adaptability u2013 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
#LI-JK1
#LI-HYBRID…