Application Developer - Mid Level

At MBC, we believe we can. We believe in working hard to meet our clients’ outcomes. We believe in laughter to help us recharge, draw people together, foster a positive work environment, and boost creativity. We believe in listening to our employees, partners, and clients. We believe in always challenging ourselves, for it is through pushing our boundaries that we achieve our greatest successes. This mindset propels our employees and our teams to accomplish our goals. That’s where you come in. If you believe in these things too, you’re our kind of person!

We are currently seeking a Mid-Level Application Developer located in the Washington, D.C. area to support an automation technology innovation program.

What you’ll do:

The Mid-Level Application Developer will support the development of emerging solutions designed to empower MBC’s government clients.

Responsibilities:

• Implement scoped Python backend fixes and REST API integrations using Flask or FastAPI
• Improve the Vue.js interface, including answer presentation, citations, tables and error states
• Use SQL and graph queries to validate records, relationships and financial fields; trace issues across retrieval, backend responses and UI rendering
• Build regression tests and document expected versus actual results, evidence, defects and remaining limitations
• Maintain focused code changes, technical documentation and clear progress updates
• Support controlled validation and releases
• Adhere to and report on technical milestones and the overall project schedule
• Participate in and support internal and external engagements including client meetings, conferences, and industry days
• Evaluate operational deficiencies, recommend improvements, and coordinate their implementation
• Attend meetings and program reviews, assist with compiling presentations, written materials, and/or electronic communications as required
• Travel domestically and internationally, provide in-person support at MBC and client sites, and obtain and maintain professional certifications and security clearances as required by MBC and/or MBC’s clients. These requirements are subject to change without advance notice at the discretion of MBC and MBC’s clients

Qualifications:

• The ability to obtain and maintain a Department of Defense Secret Security Clearance
• 4+years of experience developing applications using Python, SQL, REST APIs, and related technologies
• Hands on experience building LLM applications, ideally in production
• Building and deploying backend APIs (Flask, FastAPI or similar) on Linux servers
• Experience in practical data validation and debugging
• Experience using JavaScript or TypeScript and a modern frontend framework; Vue.js preferred.