> Markdown version of [/jobs/ext/4515781-senior-full-stack-engineer](https://www.wearedevelopers.com/jobs/ext/4515781-senior-full-stack-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 Full Stack Engineer - **Company:** Alight Solutions LLC - **Location:** Deerfield, IL, United States (Remote available) - **Experience:** Expert - **Salary:** $170,000 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Applications Architecture, Application Integration Architecture, Business Logic, Automation of Tests, Information Engineering, Programming Tools, Application Data, Software Engineering, Backend, Front End Software Development, Api Design - **Published:** November 1, 2026 - **Apply:** https://jobs.localjobnetwork.com/apply/add/88760762/1 ## About the Role * 6+ years of software engineering experience, including ownership of complex production applications. * Strong experience with backend services, API design, application data modeling, and modern front-end development. * Experience designing and building complex B2B applications or comparable workflow-driven products. * Ability to turn ambiguity into clear technical decisions and working software. * Experience integrating new capabilities into existing products and technology ecosystems. * Ability to lead technical work across teams through collaboration and influence. * Experience using AI-assisted or agentic development tools within disciplined software engineering practices. * Experience integrating applications with data or AI-enabled services. * Experience improving the reliability, observability, and operational efficiency of production applications. ## Description * Designing and evolving application architecture, data models, workflows, and business logic. * Building APIs and services connecting Worklife with the Alight Data Engine. * Developing and integrate intuitive administrative and user-facing experiences. * Establishing reusable engineering patterns for security, testing, observability, deployment, and reliability. * Turning emerging product requirements into practical technical solutions and incremental delivery. * Leading technical execution across Engineering, Product, UX, Data, and platform teams. * Building production-ready services, APIs, workflows, automated tests, telemetry, and operational documentation.