> Markdown version of [/jobs/ext/4641207-senior-software-engineer](https://www.wearedevelopers.com/jobs/ext/4641207-senior-software-engineer). 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). --- # Senior Software Engineer - **Company:** Agility - **Location:** Mundelein, IL, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Testing (Software), Application Integration Architecture, Static Program Analysis, Software Documentation, Computer Engineering, Software Debugging, Graphical User Interface, Language Modeling, Object-Oriented Software Development, Performance Tuning, Program Analysis, Software Maintenance, Software Engineering, Software Technical Review, Software Troubleshooting, Solid Principles, Information Technology, Front End Software Development - **Published:** November 8, 2026 - **Apply:** https://www.thejobnetwork.com/job/963c04d7-7af3-4042-9564-001f6a1d13d7/senior-software-engineer ## About the Role * Undergraduate degree in Computer Engineering, Computer Science, Information Technology, or a related discipline. \n * Strong experience in full lifecycle application development, including designing, coding, debugging, testing, and maintaining software applications. \n * Proficiency in software analysis, code analysis, requirements analysis, and software review processes. \n * Understanding of object-oriented analysis and design (OOA/OOD), software modeling, and simulation. \n * Experience with front-end graphical user interface design, application integration, and software testing and quality assurance. \n * Ability to perform performance tuning, troubleshoot software issues, improve usability, and implement automation solutions. \n * Strong problem-solving and analytical skills, with the ability to evaluate new technologies, maintain software documentation, and ensure compliance with development standards. \n ## Description Agility Partners is seeking a qualified Application Developer to fill an open position with one of our clients in the financial services industry. This is an exciting opportunity to contribute to the full software development lifecycle, building, enhancing, and maintaining applications that support critical business functionality. The ideal candidate will bring strong application development skills, a solid understanding of software design principles, and the ability to deliver reliable, scalable, and user-friendly solutions.