> Markdown version of [/jobs/ext/4511727-senior-software-engineer-in-mundelein](https://www.wearedevelopers.com/jobs/ext/4511727-senior-software-engineer-in-mundelein). 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 in Mundelein - **Company:** Energy Jobline - **Location:** Mundelein, IL, United States - **Experience:** Expert - **Salary:** $200,000.0 - $250,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, TypeScript, Backend, Front End Software Development - **Published:** November 2, 2026 - **Apply:** https://www.energyjobline.com/job/senior-software-engineer-mundelein-32139877 ## About the Role * 6 to 15 years of full-stack engineering experience, currently working at Staff or Principal level \n * Recent experience as a founding or very early engineer at a venture-backed start-up, ideally within the first five engineers \n * Production full-stack TypeScript, with ownership across frontend and backend \n * Strong product instincts, with a track record of shipping features that made a real difference for users \n * Experience in a regulated environment such as healthcare, HIPAA or fintech \n * A real interest in healthcare and the problem the company is solving \n * Experience working with offshore or distributed teams and hands-on AI work in production are both a plus