Senior Application Developer
Arthur J. Gallagher
Rolling Meadows, IL · Posted September 30, 2026
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Where Rolling Meadows, IL ranks
Where Rolling Meadows, IL placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Cities where the biggest share of jobs do not need a four-year degree in the Midwest26% · of 54
- #1Cities where the biggest share of jobs do not need a four-year degree in the Great Lakes26% · of 39
- #2Best cities for remote-friendly jobs22% · of 100
- #6Best cities for entry-level jobs that want AI skills in the Midwest6% · of 52
- #6Best cities for entry-level jobs that want AI skills in the Great Lakes6% · of 38
- #6Best cities for AI-skill jobs in the Midwest13% · of 69
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
Skills this job asks for
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About the job
Introduction At Gallagher Bassett, we're there when it matters most because helping people through challenging moments is more than just our job, it’s our purpose. Every day, we help clients navigate complexity, support recovery, and deliver outcomes that make a real difference in people’s lives. It takes empathy, precision, and a strong sense of partnership—and that’s exactly what you’ll find here. We’re a team of fast-paced fixers, empathetic experts, and outcomes drivers — people who care deeply about doing the right thing and doing it well. Whether you're managing claims, supporting clients, or improving processes, you’ll play a vital role in helping businesses and individuals move forward with confidence. Here, you’ll be supported by a culture that values teamwork, encourages curiosity, and celebrates the impact of your work. Because when you’re here, you’re part of something bigger. You’re part of a team that shows up, stands together, and leads with purpose. How you'll make an impact Key Skills: Strong experience designing, developing, and maintaining REST APIs using C#, the .NET Framework, .NET Core, or other object-oriented programming languages. Utilize Azure technologies for cloud-based application development and deployment, including Azure Data Factory, Azure Functions, Azure SQL, Static Web Apps, Azure Container Apps, and related services. Develop and optimize SQL Server databases, including writing complex queries, stored procedures, and performing database performance tuning. Experience with AI-assisted development, custom agents, and workflow automation to accelerate software delivery. Apply strong object-oriented programming principles to design and implement scalable, maintainable software solutions. Lead and mentor junior developers by providing guidance, support, and technical expertise. Manage source code using Git repositories, Azure DevOps, or VSTS while following version-control best practices. Troubleshoot and resolve technical issues to ensure high performance, reliability, and stability of applications. Stay current with emerging technologies and industry trends to continuously improve development processes and practices. Demonstrate excellent problem-solving skills with the ability to think critically and creatively. Exposure to front-end technologies such as Angular or React. Familiarity with CI/CD pipelines and deployment automation. Exposure to designing complex systems and scalable application architectures. About You Required: • Typically requires a University Degree and minimum 5 years of prior relevant experience, or equivalent experience. Preferred: • App development/programming • Database design • System architecture & integration • Communication and stakeholder management skills • Root cause analysis • Product development management • Product portfolio management Compensation and benefits At Gallagher, we believe supporting our colleagues goes far beyond the role itself. For more information, visit our Benefits page. Competitive compensation Comprehensive benefits programs designed to support your well-being Career development opportunities and ongoing learning A collaborative, people-first culture with accessible leadership The opportunity to do meaningful work with global reach and local impact At Gallagher, we are dedicated to building an inclusive and authentic workplace. If your past experience doesn’t align perfectly, we encourage you to join our Talent Community to stay connected to additional career opportunities. At times, we will consider transferable skills from previous roles. Gallagher is an affirmative action/equal opportunity employer (Minorities/Females/Veterans/Disabled)
Key Skills: Strong experience designing, developing, and maintaining REST APIs using C#, the .NET Framework, .NET Core, or other object-oriented programming languages. Utilize Azure technologies for cloud-based application development and deployment, including Azure Data Factory, Azure Functions, Azure SQL, Static Web Apps, Azure Container Apps, and related services. Develop and optimize SQL Server databases, including writing complex queries, stored procedures, and performing database performance tuning. Experience with AI-assisted development, custom agents, and workflow automation to accelerate software delivery. Apply strong object-oriented programming principles to design and implement scalable, maintainable software solutions. Lead and mentor junior developers by providing guidance, support, and technical expertise. Manage source code using Git repositories, Azure DevOps, or VSTS while following version-control best practices. Troubleshoot and resolve technical issues to ensure high performance, reliability, and stability of applications. Stay current with emerging technologies and industry trends to continuously improve development processes and practices. Demonstrate excellent problem-solving skills with the ability to think critically and creatively. Exposure to front-end technologies such as Angular or React. Familiarity with CI/CD pipelines and deployment automation. Exposure to designing complex systems and scalable application architectures.
Required: • Typically requires a University Degree and minimum 5 years of prior relevant experience, or equivalent experience. Preferred: • App development/programming • Database design • System architecture & integration • Communication and stakeholder management skills • Root cause analysis • Product development management • Product portfolio management