Senior Software Engineer

Frontline Source Group - Nationwide Staffing & Executive Search; Englewood (CO); On-site; USD 120,000 - 180,000; Full time

Job summary

Frontline Source Group - Nationwide Staffing & Executive Search in Englewood, CO is seeking a Senior Software Engineer to design, develop, and support enterprise‑level applications using modern Microsoft technologies. You will work in a fast-paced, product-driven environment within an Agile team.

You should have 4+ years of experience with C#, .NET Core, EF Core, SQL, HTML, CSS, and Blazor, and be comfortable collaborating across product, QA, and other developers while contributing to

Qualifications

• 4+ years of professional software development experience with C#.
• 4+ years with .NET Core 3.x or newer.
• 4+ years of experience with Entity Framework Core, SQL databases, HTML, and CSS.
• Experience with Blazor or another modern web framework.
• Ability to design, implement, and integrate enterprise‑level software solutions.
• Experience collaborating in Agile environments with Git.
• Strong written and verbal communication skills.

Responsibilities

• Design, develop, and maintain scalable full-stack applications with Microsoft technologies.
• Build intuitive, user-friendly interfaces from product concepts or wireframes.
• Design and integrate complex software across web, API, and mobile platforms.
• Support applications spanning web portals, APIs, and mobile technologies.
• Collaborate with Product Owners, QA, and developers throughout the SDLC.
• Participate in Agile ceremonies including sprint planning, stand‑ups, retrospectives, and code reviews.
• Contribute to architecture discussions and continuous process improvements.
• Research and implement emerging technologies to improve performance and UX.

Skills

C#

.NET Core

Entity Framework Core

SQL

HTML

CSS

Blazor

Azure DevOps

Git

API design

Tools

Git

Azure DevOps

Job description

Our client in Englewood Colorado is looking for a Senior Software Engineer on a direct hire basis. This is an opportunity to join a collaborative, fast‑paced development team where your work will directly influence the evolution of a cutting‑edge technology platform. If you enjoy solving complex technical challenges, working with modern Microsoft technologies, and contributing to a product‑driven environment, this is an excellent opportunity to make an impact.

Company Profile

Transportation Technology

Great team with a great company culture

Weekly team lunches

Senior Software Engineer Role

The Software Engineer will play a key role in designing, developing, and supporting enterprise‑level applications within a collaborative Agile development environment.

• Design, develop, and maintain scalable full-stack applications using modern Microsoft technologies
• Build intuitive, user-friendly interfaces from product concepts, wireframes, or minimal design direction
• Design and integrate complex software solutions across web, API, and mobile platforms
• Support applications spanning web portals, APIs, and mobile technologies
• Collaborate closely with Product Owners, Quality Assurance Engineers, and fellow developers throughout the software development lifecycle
• Participate in Agile ceremonies including sprint planning, stand‑ups, retrospectives, and code reviews
• Contribute to architecture discussions, peer mentoring, and continuous process improvements
• Research and implement emerging technologies that improve scalability, performance, and user experience

Senior Software Engineer Background Profile

• 4+ years of professional software development experience using C#
• 4+ years of experience developing with .NET Core 3.x or newer
• 4+ years of experience with Entity Framework Core, SQL databases, HTML, and CSS
• Experience with Blazor or another modern web application framework
• Ability to design, implement, and integrate enterprise‑level software solutions
• Experience working with Azure DevOps or similar development platforms
• Experience working within Agile development environments utilizing Git source controlStrong written and verbal communication skills
• Self‑motivated, detail-oriented, and deadline-driven
• Comfortable participating in code reviews, technical discussions, and collaborative problem-solving
• Passion for learning new technologies and continuously improving development practices