Junior .NET Developer (Application Support Engineer)

Junior.NET Engineer

We're hiring a hands-on Junior.NET engineer with 3+ years of experience to join our team on-site in Ashburn, Virginia, supporting our HR platform.

This is not a pure development role. You'll spend your time on hands-on.NET work — bug fixes, configuration, and improvements to our Windows admin app — alongside operational tasks like onboarding clients, managing documents, and monitoring feeds. New platform development is handled by an external dev partner; you'll be the technical bridge between our team and theirs.

The right person for this role is patient, organized, and comfortable working with non-technical stakeholders who context-switch frequently — someone who can take ambiguous, half-formed requests and translate them into concrete, actionable work without needing perfectly defined tickets to get started. This is also a role with room to grow: as you build trust and ownership with the team, your scope and responsibilities will grow with you.

The Role

The work splits across four areas:

• Operations & Data
• Onboard new clients
• Enter and manage documents
• Monitor data feeds to integration partners
• Build new feeds when needed
• Development
• Maintain and improve our Windows admin app (.NET desktop)
• Fix bugs across our broader.NET application stack
• Support
• Be the go-to technical contact for our internal team and clients
• Investigate and resolve production issues
• Coordination
• Work with our external dev team on platform-level changes
• Manage infrastructure tasks (SSL certificates, deployments)

Tech Stack

Primary:.NET, C#, Windows desktop (WinForms / WPF) Adjacent: SQL, REST APIs, data feeds & integrations, SSL/TLS

What We're Looking For

• 3+ years of.NET development experience

• Patience for operational and clerical tasks alongside development work

• Strong C# skills

• Windows desktop app experience (WinForms, WPF, or similar)

• Comfort with SQL and data feed work

• Comfortable working with non-technical stakeholders who context-switch frequently

• Able to translate ambiguous requests into concrete tickets — taking a vague problem and turning it into actionable work

• Comfortable working independently

• Eager to learn and grow into the role over time

• Strong English communication

Nice to Have

• HR / payroll / benefits software background

• Experience with data integrations or building feeds

• Experience working alongside distributed external teams

C2 Essentials is an Equal Opportunity Employer.