Senior .NET Full-Stack Developer - Hybrid (Colorado)

Sonepar USA Inc; Broomfield (CO); Hybrid; USD 110,000 - 140,000; Full time

Benefits offered by this job

Healthcare plans

Dental & vision

Paid time off

Paid parental leave

401(k) retirement with company match

Professional and personal development

Shareholder opportunity

Disability insurance

Life insurance for dependents

Wellness program

Gym reimbursement

EAP

Job summary

Sonepar USA Inc. invites a Senior .NET Application Developer to join its growing technology team in a hybrid role based in Broomfield, Colorado. You will design, develop, and maintain enterprise-scale software supporting critical operations across the organization.

The role requires 3–5 years of Full-Stack experience with .NET, APIs, modern web UI, and scalable architectures. Collaboration with cross-functional teams and a focus on reliability are essential.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• 3–5 years of experience as a Full-Stack Application Developer in a large organization.
• Experience designing, developing, and supporting .NET apps using ASP.NET MVC and APIs.

Responsibilities

• Participate in front-end and back-end development.
• Design, develop, and maintain end-to-end software solutions.
• Build scalable, secure web applications with high reliability.
• Troubleshoot and resolve application issues to ensure performance.
• Collaborate with partners, product teams, and other developers.
• Contribute to enhancements, integrations, and continuous improvement.

Skills

.NET Framework & ASP.NET MVC

C#

Visual Studio

SQL Server

RESTful/API development

Web UI (HTML/CSS/JS)

Cross-browser compatibility

Software architecture & patterns

JavaScript/TypeScript/jQuery

JSON/XML data formats

Education

Bachelor's degree in CS/IT or related field

Tools

Visual Studio

SQL Server

Job description

Sonepar USA Inc. invites a Senior .NET Application Developer to join its growing technology team in a hybrid role based in Broomfield, Colorado. You will design, develop, and maintain enterprise-scale software supporting critical operations across the organization.

The role requires 3–5 years of Full-Stack experience with .NET, APIs, modern web UI, and scalable architectures. Collaboration with cross-functional teams and a focus on reliability are essential.