Software Engineer, Full-Stack; Hybrid​/Baltimore. MD

Description

What if your code helped millions of Americans qualify for a home?

At Credit Xpert, that's not a marketing line, it's what we ship. For over 20 years, we've been quietly powering one of the most consequential decisions in a person's financial life: home ownership. And right now, we're in the middle of something big.

We're expanding our API-first platform at the intersection of Fin Tech, advanced analytics, and AI and we need a sharp, motivated full-stack engineer to help us get there. You won't get lost in a sprawling org chart or buried in meetings. You'll be part of a small team of top performers who own their work end-to-end, ship things that matter, and push each other to grow.

Here's what makes this role different:

• Design and ship production-grade REST APIs at the core of our platform strategy
• Contribute to open-source MCP servers and CLI tooling with real external reach
• Work in a purposeful, well-supported stack: C# .NET Core + React + AWS
• Bring your curiosity about AI/LLM and agentic frameworks to a team actively building in that space
• Do it all in service of a mission that genuinely improves people's financial lives

The Mid-Level Software Engineer (Full-Stack) will play a key role in building and evolving Credit Xpert's product ecosystem. Operating with a high degree of autonomy within a supportive mentor/mentee relationship with their Technical Lead, this engineer will be instrumental in designing and delivering robust REST APIs, contributing to agentic tooling, and advancing workflow capabilities and user experience for Credit Xpert's customers.

To build innovative, scalable, and reliable applications that enable mortgage lenders to leverage advanced analytics for risk management and decision support, helping make home ownership more accessible and affordable through cutting-edge Fin Tech solutions.

• REST API Development – Design, build, and maintain production-grade REST APIs that serve as the foundation of Credit Xpert's API-first strategy.
• Agentic & Developer Tooling – Contribute to the development and release of Model Context Protocol (MCP) servers and CLI tooling designed to help customers rapidly integrate and adopt Credit Xpert's API.
• Full-Stack Feature Development – Develop and maintain full-stack features using C# .NET Core on the backend and React on the front end.
• Software Maintenance & Iteration – Maintain and enhance legacy software systems while contributing to new feature development.
• Agile Collaboration – Work closely within the Engineering/Product organization in an agile environment.
• Quality Assurance & Testing – Write and execute unit tests to ensure code stability, reliability, and performance.
• Continuous Learning – Stay current with emerging technologies – including AI/LLM tooling, agentic frameworks, and cloud-native development practices.

• Backend & API Excellence – Leverage deep expertise in C# .NET Core (or comparable OOP languages such as Java) to build reliable, maintainable backend services and REST APIs integrated with SQL relational databases.
• Open-Source Developer Experience – Contribute to the design and distribution of MCP servers and CLI tools as open-source software.
• Cloud Fluency – Work confidently within AWS environments – navigating AWS products, services, and tooling.
• Version Control & CI/CD Awareness – Use Git-based version control tools (Bitbucket, Git Hub, or similar) effectively and understand CI/CD concepts.
• AI/LLM Orientation – Bring curiosity and practical experience with AI/LLM technologies to help drive Credit Xpert's agentic roadmap forward.
• Autonomous Yet Collaborative – Thrive in a high-autonomy, mentor/mentee dynamic while collaborating with senior team members for guidance and growth.

• Design and develop REST APIs and backend services
• Build and contribute to open-source MCP servers and CLI tooling
• Develop and maintain front-end features using React (~25% of role)
• Work as part of an agile, cross-functional engineering/product team
• Write and maintain unit tests
• Troubleshoot and resolve issues across AWS…