Telecommute Java Mainframe Developer Jobs in Illinois

Job Title: US IT Professional – Applications

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, diverse team, and we are passionate about helping our colleagues and clients succeed.

What the day will look like

Aon Service Corporation seeks a US IT Professional – Applications in Chicago, Illinois to conduct web development. Design, develop, code, and maintain scalable Java-based applications using Java SDK 7 and 8. Build and support RESTful API Web services. Design, build, and maintain web sites and API integrations. Deploy web application codes and files to servers. Build web frameworks using JavaScript, React, AJAX, jQuery, and AngularJS. Collaborate with IT teams on the integration of web applications with other business applications. Ensure technology infrastructure stability and hygiene and own production assurance. Ensure correct code delivery through code reviews, unit testing, and adherence to best software engineering practices. Architect scalable solutions based on understanding of the business and products. Apply experience with database technologies, including SQL, PL/SQL, and relational database schema design. Manage multiple development initiatives simultaneously, ensuring on-time delivery and alignment with project goals. Partner with business stakeholders, clients, and vendors to align technology solutions with organizational objectives. Support and lead upgrade initiatives including platform migration and server upgrades. Implement and integrate new technologies and solutions to improve user experience for software and web applications. Resolve web related issues and engage respective teams for resolutions. Remediate application vulnerabilities identified by the security team as part of the frequent scans and vulnerability tests. Telecommuting from anywhere in the United States available 5 days a week. Annual Salary: $115,877 - $179,800.

Job Location: 200 E. Randolph Street, Chicago, IL 60601

  

Skills and experience that will lead to success

Bachelor’s degree in Computer Science, Computer Applications, Electronic Engineering, or a related field plus five years of progressive web development experience. Must have at least five years of experience in each of the following: 1. Designing, developing, coding, and maintaining scalable Java-based applications using Java SDK 7 and 8; 2. Building and supporting RESTful API Web services; 3. Designing, building, and maintaining web sites and API integrations; 4. Building web frameworks using JavaScript, React, AJAX, jQuery, and AngularJS; 5. Architecting scalable solutions based on understanding of the business and products; 6. Applying experience with database technologies, including SQL, PL/SQL, and relational database schema design; and 7. Resolving web related issues and remediating application vulnerabilities.

How we support our colleagues

In addition to our comprehensive benefits package, we encourage a diverse workforce. Plus, our agile, inclusive 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, but we also recognize that flexibility goes beyond just the place of work... and we are all for it. We call this Smart Working!

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, diverse 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 (EEO) 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.  Aon is committed to a diverse workforce and is an affirmative action employer. People with criminal histories are encouraged to apply.

We provide individuals with disabilities reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment in accordance with applicable law. Please contact us to request an accommodation on ReasonableAdjustments@Aon.com

Salary range or hourly pay range for the position

The salary range for this position is $115,877 - $179,800 annually.

A summary of all the benefits offered for that position

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.

How to Apply

To apply, please send resume to aonresumes@aon.com and cite requisition number 00817, apply at jobs.aon.com, or click the apply button. This notice is subject to Aon Service Corporation’s employee referral program.

2026-103738Qualifications:UNAVAILABLEEducation:UNAVAILABLEEmployment Type: FULL_TIME