Junior .NET Developer (Application Support 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

• 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, * .NET: 3 years (Required)