Job Title: Full-Stack .NET Application Engineer
Location: Schaumburg, Illinois
Type: Contract To Hire
Compensation: $105,000 annual
Work Model: Hybrid – onsite and remote
Hours: 40.0:
Responsibilities
• Design, develop, and maintain full-stack applications using .NET / .NET Core, C#, RESTful APIs, and modern UI frameworks, primary focus on backend development (~60%) and significant frontend responsibilities (~40%)
• Maintain and enhance existing ELD(Executive Liability Division) applications, frameworks, and shared libraries
• Design and implement new features aligned with ELD(Executive Liability Division) business processes and workflows
• Troubleshoot production issues and provide ongoing application support
• Ensure compliance with security, performance, and architectural standards
• Contribute to modernization initiatives, including framework evolution and technical debt reduction
• Collaborate with cross-functional teams to define, design, and deliver high-quality solutions
• Participate in code reviews, testing, CI/CD, and deployment processes
Requirements
• Strong experience with .NET / .NET Core and C#
• Hands-on experience with Entity Framework Core (EF Core) and ORM best practices
• Proven experience designing and developing RESTful APIs and microservices architectures
• Solid understanding of object-oriented programming (OOP), design patterns, and clean architecture principles
• Experience with SQL Server or other relational databases, including query optimization, indexing, and stored procedures
• Familiarity with authentication and authorization mechanisms (OAuth, JWT, identity frameworks)
• Experience with modern JavaScript frameworks (Angular, React, Vue, etc.)
• Angular strongly preferred; candidates without Angular experience must demonstrate ability to ramp quickly
• Strong proficiency in: TypeScript, JavaScript (ES6+), HTML5, CSS3, responsive design principles, component-based UI architectures, familiarity with UI libraries like Angular Material or Bootstrap
• Modern engineering practices including using Git, CI/CD pipelines, containerization (Docker), and cloud platforms (Azure preferred)
• Exposure to or experience with AI-assisted development tools such as GitHub Copilot is a plus
• Ability to work independently and within a team, with strong communication skills
• Knowledge of microservices, distributed systems, event-driven architectures, and API gateways is a plus
• Prior experience in insurance or underwriting systems and legacy system modernization initiatives is desirable
System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
Ref: #861-Cincinnati-S1System One, and its subsidiaries including Joulé, ALTA IT Services, TeamPeople, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
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