Sr. Application Developer

We're looking for a highly skilled developer to join a highly motivated and passionate team, working on one of Aon's flagship applications. The ideal candidate will be able to take a requirement through its entire life cycle-from analysis, architecture and design, to development, testing, and implementation. We are a small team of industry professionals with decades of experience in software development. This is a position where you will have a visible impact on the product and its success.

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

• Collaborate daily with team members in a dynamic, agile environment.
• Participate in requirement analysis, design discussions, and code reviews.
• Develop and maintain web-based applications using C#, .NET, and Angular.
• Write clean, maintainable, and testable code following best practices.
• Troubleshoot and debug issues to ensure high-quality deliverables.
• Engage in iterative development cycles using Azure DevOps and agile methodologies.

How This Opportunity Is Different

• Work on a high-impact flagship application that directly influences Aon's business success.
• Join a small, highly experienced team, giving you visibility and ownership of your work.
• Opportunity to shape architecture and design decisions, not just code to spec.
• Exposure to modern technologies and practices, including cloud integration and DevOps.
• A culture that values innovation, collaboration, and continuous learning.

Required Experience

• Excellent verbal and written communication skills.
• Ability to work in a team environment requiring daily communication and knowledge transfer.
• Strong experience (minimum 4-6 years) developing with C# and .NET.
• Experience with Visual Studio 2019 or higher.
• Developing web-based applications and working with SQL Server or Oracle.
• Practical knowledge of DHTML, JavaScript, CSS, and other web standards.
• Experience developing Web APIs.
• Angular and Bootstrap experience.

Preferred Experience

• Working with Azure DevOps.
• Familiarity with iterative release cycles and agile approaches (Scrum, Kanban).
• Understanding of design principles (design patterns, OOD).
• Experience with jQuery, XML, PL / SQL, LINQ.
• Knowledge of asynchronous messaging and messaging technologies

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. People with criminal histories are encouraged to apply.

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.

For positions in San Francisco and Los Angeles, we will consider for employment qualified applicants with arrest and conviction record in accordance with local Fair Chance ordinances.

Aon is not accepting unsolicited resumes from search firms for this position. If you are a search firm, you will not be compensated in any way for your submission of a candidate, even if Aon hires that candidate.

Nothing in this job description restricts management's right to assign or reassign duties and responsibilities to this job at any time.

Pay Transparency Laws :

The salary range for this position (intended for U.S. applicants) is [$72500 to $100k] annually. The actual salary will vary based on applicant's education, experience, skills, and abilities, as well as internal equity and alignment with market data. The salary may also be adjusted based on applicant's geographic location.

Aon offers a comprehensive package of benefits for full-time and regular part-time colleagues, including, but not limited to : a 401(k) savings plan with employer contributions; an employee stock purchase plan; consideration for long-term incentive awards at Aon's discretion; medical, dental and vision insurance, various types of leaves of absence, paid time off, including 12 paid holidays throughout the calendar year, 15 days of paid vacation per year, paid sick leave as provided under state and local paid sick leave laws, short-term disability and optional long-term disability, health savings account, health care and dependent care reimbursement accounts, employee and dependent life insurance and supplemental life and AD&D insurance; optional personal insurance policies, adoption assistance, tuition assistance, commuter benefits, and an employee assistance program that includes free counseling sessions. Eligibility for benefits is governed by the applicable plan documents and policies.

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