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.

• 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#), Graph
  
  QL, 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 of5 years of experience
as a software engineer in backend development
Strong experience building applications using.NET (C#)
Experience developing and maintaining
Graph

QL 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

Experience working with
legislative systems or legislative data

Experience with
Microsoft Azure
Familiarity with
MEAN stack
(Mongo

DB, Express, Angular, Node.js) and/or
React.js

Capitol Hill, Washington D.C.
Some work may be performed off‑site with approval and at the discretion of the POC.

Mobomo is a full-service Dev Ops 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.