Senior Software Developer

Washington, DC
Full Time
Experienced
Company Overview
Development InfoStructure LLC., (Devis) is a leading provider of innovative software development, management, and consulting services, specializing in cutting-edge technologies such as DevSecOps, AI, and Machine Learning. With over 30 years of experience, we have established ourselves as a trusted partner for government agencies, delivering tailored, mission-critical solutions that drive digital transformation and operational excellence. Our client-centric approach, coupled with our deep domain expertise and technical prowess, enables us to forge enduring relationships and consistently deliver high-impact, adaptive solutions that resonate with the unique needs of the public sector.

Job Overview
The Senior Software Developer will serve as a backend-focused senior engineer supporting the Office of the Clerk’s Legislative Computer Systems (LCS) modernization initiatives and ongoing maintenance of legacy Clerk applications. This role requires deep expertise in modern backend development with .NET (C#), GraphQL APIs, and Postgres and/or MSSQL, plus strong experience with CI/CD pipelines and containerized (Docker) environments.

This is a full-time role aligned to core business hours 7:00 AM to 6:00 PM Eastern. Work is performed on Capitol Hill, Washington, DC, with off-site work permitted only with approval and at the discretion of the customer.

Primary Duties
Backend Modernization and Maintenance
  • Actively participate in the analysis, design, and development of modernization efforts at LCS.
  • Lead and contribute to building, maintaining, and enhancing web applications using .NET (C#), Postgres, and GraphQL (optionally MEAN stack).
Agile Delivery Leadership
  • Support all aspects of Agile delivery, including requirements gathering, standups, user stories, task creation, backlog review, and implementation.
  • Provide guidance and collaborate closely with a small development team, including mentoring more junior developers.
API Development and Data Layer Engineering
  • Develop and maintain GraphQL APIs, ensuring reliability, performance, and maintainability.
  • Design and maintain system data models and schemas, supporting consistent and accurate application behavior across modernization and legacy workstreams.
DevOps, CI/CD, and Containerization
  • Contribute to CI/CD pipeline development and deployment processes.
  • Support containerization strategies and troubleshoot deployment issues in containerized environments.
Testing, Performance, and Support
  • Plan and implement unit testing into the development lifecycle.
  • Assist with or review load testing, identify bottlenecks/latency, and recommend optimizations, enhancements, and fixes.
  • Review and troubleshoot bugs, identify root causes, and drive resolutions while promoting software development best practices.
Required Qualifications
Education & Experience
  • Bachelor's degree in Computer Science, Information Systems, or related field
  • Minimum of five (5) years of relevant experience in modern backend development including:
    • Building applications with .NET (C#)
    • Developing and maintaining GraphQL APIs
    • Working with Postgres and/or MSSQL databases
    • Building/maintaining data models and schemas
    • Serving as the senior engineer and/or leading development teams
    • Experience with Agile methodologies, DevOps, Docker (containers), and CI/CD pipeline implementations.
    • Proven ability to work independently and collaboratively, providing guidance to junior developers.
    • Demonstrated stakeholder engagement and requirements gathering experience.
Key Technical Competencies
  • .NET (C#) backend development
  • GraphQL API development and maintenance
  • Postgres and/or MSSQL database development
  • Data modeling and schema design
  • Docker and containerized deployments, CI/CD pipeline implementation
  • Agile delivery (requirements, user stories, backlog execution)
Preferred Qualifications
  • Experience developing legislative systems and/or working with legislative data.
  • Experience with Microsoft Azure cloud technologies.
  • Experience with MEAN stack and/or React.js (a plus, not required).
Performance Expectations
  • Deliver high-quality backend capabilities for LCS modernization while ensuring continuity and stability for legacy systems.
  • Improve reliability and delivery efficiency through effective CI/CD and containerization practices.
  • Increase code quality via unit testing, performance analysis, and optimization recommendations.
  • Provide leadership and mentorship to support consistent engineering standards and best practices.

Clearance
  • Ability to obtain and maintain House facility and system access requirements
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Salary Range
  • $115,000 - $125,000

Devis is an AA/EOE/M/F/Disabled/VET Employer committed to providing equal employment opportunity without regard to an individual’s race, color, religion, age, gender, sexual orientation, veteran status, national origin or disability.

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