Senior.NET Developer

We are seeking a full-time, backend-focused  Senior .NET Developer  to support application modernization initiatives and ongoing maintenance of legacy systems.

This role requires a hands-on engineer with strong experience in modern backend technologies, containerized environments, and CI/CD pipelines, as well as the ability to lead and mentor other developers.

Responsibilities Participate in the analysis, design, and development of system modernization efforts Support and enhance existing legacy applications Lead and contribute to Agile development activities, including standups, user stories, backlog grooming, and task execution Build, maintain, and enhance backend services using .NET (C#), GraphQL, and relational databases Contribute to and support CI/CD pipeline development and deployment processes Implement and maintain containerized solutions and troubleshoot deployment issues Design and implement unit tests, review load testing results, and identify performance bottlenecks Troubleshoot defects and recommend system optimizations and enhancements Collaborate closely with stakeholders and a small development team, providing technical guidance and mentorship Required Qualifications Minimum of  5 years of experience  as a software engineer in backend development Strong experience building applications using  .NET (C#) Experience developing and maintaining  GraphQL APIs Experience with  Postgres and/or MSSQL  databases Experience designing and maintaining  data models and schemas Experience serving as a  senior or lead engineer  on development projects Experience with  Agile methodologies ,  Docker/containerization , and  CI/CD pipelines Ability to work independently and collaboratively while mentoring junior developers Strong experience gathering requirements and working directly with stakeholders Preferred Qualifications Experience working with  legislative systems or legislative data Experience with  Microsoft Azure Familiarity with  MEAN stack  (MongoDB, Express, Angular, Node.js) and/or  React.js Location Capitol Hill, Washington D.C.

Some work may be performed off-site with approval and at the discretion of the POC.   About Mobomo:

• Mobomo is a full-service DevOps agency dedicated to creating elegant solutions to solve complex problems.


• Mobomo benefits include health care, paid time off, retirement savings and professional development.
• Mobomo is an equal opportunity employer and we value diversity at our company.
• We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity or expression, sexual orientation, age, marital status, citizenship status, veteran status, disability status or any other basis as protected by federal state, or local law.
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