Web Developer Senior (TS/SCI CI Poly)

Seamless Migration
Chantilly, Fairfax County, VA

ABOUT US

Seamless Migration is a Service-Disabled Veteran-Owned Small Business (SDVOSB) started in 2021 with the purpose of enabling businesses and organizations through automation. Our goal is to help organizations discover, implement, and maintain solutions which evolve and mature with their ever-changing business needs. We believe in applying agile methodologies in all aspects of our business practices and use these methods to ensure effective results for our clients.

Seamless Migration is seeking a career and customer-oriented Senior Web Developer to join our team in Chantilly, VA.

CLEARANCE

  • Active TS/SCI W/ CI Polygraph (existing clearance required to start)

LOCATION

  • Chantilly, VA

OVERVIEW

  • Act as a member of an AGILE development team working with HTML5, JavaScript, Bootstrap, CSS, C#.NET, SQL, and Amazon Web Services to develop business applications in support of a government customer.

  • Collaborate with analysts, project leads, UI/UX developers, testers, and customers to define requirements, implement business logic, and refine applications.

  • Provide support and troubleshoot issues with existing production applications.

  • Responsible for researching, designing, developing, and/or modifying software systems (e.g., custom, COTS, GOTS).

  • Work closely with business analysts, UI/UX developers, and subject matter experts to understand functional requirements.

  • Develop cost estimates for software development and enhancements and conduct impact analysis for software changes.

  • Adhere to program configuration change control standards.

  • Present ideas for system improvements.

  • Produce detailed specifications, write software code, and conduct unit testing.

  • Write interfaces and conversion routines leveraging web APIs.

  • Support formal testing in a controlled environment before code is promoted to production.

  • Provide input into training manuals for users.

  • Maintain knowledge of feature and technical changes in the application.

QUALIFICATIONS

  • 7+ years of relevant web development experience.

  • Experience employing AWS cloud services to create cloud-native applications

  • Experience with C#.NET and Bootstrap.

  • Experience with basic web programming languages such as HTML, JavaScript, and CSS.

  • Knowledge of web development principles, techniques, languages, and standard programming styles and conventions.

  • Bachelor’s Degree or higher in Computer Science, Information Systems, or similar.

  • Ability to manage multiple priority tasks.

NICE TO HAVE

  • AWS Certification (AWS Developer Associate or AWS DevOps Engineer Professional).

  • Experience with AI Tools

  • Experience with Python

  • Knowledge and understanding of the DoD or IC communities.

BENEFITS

  • 100% paid Medical, Dental & Vision for Our Employee

  • 6% 401K match (Vested Immediately)

  • 29 Days' PTO

  • Flexible Work Schedule

  • Tuition/Certification Reimbursement

  • Growth Opportunities w/in an Emerging Defense Company

*All your information will be kept confidential according to EEO guidelines

Posted 2026-05-07

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