SIL Sr Full-Stack Developer

SIL Sr Full-Stack Developer Sonepar USA Inc life insurance, parental leave, paid time off, 401(k) United States, Colorado, Broomfield 1785 West 160th Avenue (Show on map) May 07, 2026 Sonepar Management Group (SMG) supports our Sonepar brands (i.e. operating companies) in the US through a shared services model. These services include, but are not limited to: human resources, finance, digital enterprise, supply chain, vendor relations, marketing, legal, and communications. The SMG teams enable our brands to do business in their local regions while taking advantage of the scale and collective resources of a global enterprise. SMG fosters an inclusive and supportive culture. We offer leadership and development programs to help you reach your career goals. Our associates share in our collective achievements, and we firmly believe that Sonepar is "Powered by Difference." By driving technology and innovation, enabling paths to success, and caring about our people and their families, we have built a workplace where you can build a fulfilling career. We are seeking a Full Stack Developer with a BackEnd Focus to support the design, development, and enhancement of enterprise web applications. This role emphasizes backend architecture, APIs, data access, and system integrations, while requiring handson fullstack capability to support endtoend solution delivery. This role is located in Broomfield, Colorado on a hybrid schedule. Responsibilities Design, build, and maintain backendcentric web applications using C#, .NET, and

ASP.NET MVC.

Develop and support RESTful APIs and Web Services that enable scalable integration across internal and thirdparty systems. Own backend components including business logic, data access layers, and integrations supporting enterprise web applications. Contribute to fullstack development by supporting frontend components as needed to deliver complete, endtoend solutions. Troubleshoot, debug, and optimize applications to ensure reliability, security, and performance. Collaborate with product owners, architects, UX, QA, and other engineers across the full software development lifecycle. Participate in design discussions, code reviews, and continuous improvement initiatives. Qualifications Required Bachelor's degree in Computer Science or a related field, or equivalent practical experience. 3-7 years of experience as a fullstack application developer within a large, complex, enterprise environment. Strong handson experience designing and developing: C# and .NET (ASP.NET MVC) backend components and services REST APIs and Web APIs Integration services using JSON, XML, and related technologies Solid experience with Microsoft SQL Server, including relational database design, querying, and performance optimization. Proven understanding of ObjectOriented Design and backend architectural patterns. Working knowledge of frontend technologies including: JavaScript TypeScript HTML CSS CrossBrowser Development Experience using Visual Studio IDE and modern development and deployment workflows. Additional Requirements Strong understanding of full web application architecture, from UI through data access layers, with a backendfirst mindset. Ability to balance backend system ownership with fullstack development responsibilities. Excellent problemsolving, collaboration, and communication skills. Authorization to work in the U.S. without current or future visa sponsorship is required. #LI-CM1 What We Offer You We offer great family-friendly benefits to full-time associates: Healthcare plans Dental & vision Paid time off Paid parental leave 401(k) retirement savings with company match Professional and personal development programs Opportunity to become a shareholder Employer-paid short- and long-term disability Employer-paid life insurance for spouse and dependents Robust wellness program Gym reimbursement Employee Assistance Program (EAP) We're proud to be a military-friendly company, and our many employee resource groups (ERGs) help you make connections and feel supported. Learn More About Us Get to know us on LinkedIn, Facebook, Instagram and Youtube and learn how we're "Powering Progress for Future Generations." Learn more about us and our Sonepar family of brands: https://www.soneparusa.com/us-en/about-us Equal Employment Opportunity Statement Sonepar is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to their race, color, creed, religion, national origin, citizenship status, ancestry, sex, age, physical or mental disability unrelated to ability, marital status, family responsibilities, pregnancy, genetic information, sexual orientation, order of protection status, protected veteran or military status, or an unfavorable discharge from military service, or any other categories protected by federal, state or local law. Sonepar and our family of brands are committed to the full inclusion of all qualified individuals. In keeping with our commitment, we will take the steps to assure that people with disabilities are provided reasonable accommodations. Accordingly, if a reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please call 843-745-2420 or email recruiting@sonepar-us.com.