> Markdown version of [/jobs/ext/4152539-application-developer](https://www.wearedevelopers.com/jobs/ext/4152539-application-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Developer - **Company:** Kelly Services Inc. - **Location:** Chicago, IL, United States - **Experience:** Expert - **Salary:** $80,000.0 - $110,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Business Software, Business Systems, C Sharp (Programming Language), Cloud Computing, Cloud Services, Standard Sql, Software Engineering, SQL Databases, Systems Integration, Enterprise Software Applications, Boomi, Data Management - **Published:** October 11, 2026 - **Apply:** https://www.juju.com/job/1_kellyservicesfeed4-885861 ## About the Role Required Skills & Experience + 4+ years of software development experience + 3+ years supporting technology within the legal industry + Boomi integration experience + SQL expertise + Experience developing business applications and integrations + Associate's or Bachelor's degree in a related field + Ability to manage multiple priorities and deadlines Desired Skills & Experience + Intapp Cloud Suite experience + C# development experience + Elite 3E exposure + Financial systems experience + Technology leadership and mentoring experience + AI-related technology exposure What You Will Be Doing Tech Breakdown + 40% Application Development + 30% Integrations & Automation + 30% SQL & Data Management Daily Responsibilities + 75% Hands-On Development + 25% Collaboration The Offer + Bonus eligible You will receive the following benefits: + Medical, Dental, and Vision Insurance + Paid Vacation Time + 401(k) Program + Professional Development Opportunities + Hybrid Work ## Description $80000 - $110000 A growing professional services firm is seeking a full-time Senior Application Developer to join its Chicago-based technology team in a hybrid work environment. This role focuses on enterprise application development, integrations, workflow automation, and business systems optimization utilizing technologies such as Boomi, SQL, C#, and cloud-based business applications. This opportunity is ideal for someone who enjoys leading technical initiatives from concept through delivery while partnering closely with business stakeholders. The organization is looking for a hands-on developer who can mentor peers, improve processes, and contribute strategic ideas that enhance critical business systems.