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Senior Software Application Developer

CACI

Company : CACI

Location : Sterling, VA, 20166

Posted Date : 15 October 2025

Job Type : Other

Category : Software Development

Occupation : Application Developer

Job Details

Senior Software Application Developer

CACI is currently looking for a motivated, career and customer-oriented Sr. Software Engineer/Developer with Agile methodology experience to join our Customs and Border Protection (CBP) Land Border Integration (LBI) Integrated Traveler Initiative ITI2.1 team in Northern Virginia. Join this passionate team of industry-leading individuals supporting the best practices in Agile Software Development and hardware integration for the Department of Homeland Security (DHS).

As a member of the ITI2.1 Team, you will support the men and women charged with safeguarding the American people and enhancing the Nation's safety, security, and prosperity. CBP Officers and Border Patrol agents are on the front lines, every day, protecting our national security by combining customs, immigration, border security, and agricultural protection into one coordinated and supportive activity.

CACI agile programs thrive in a culture of innovation and are constantly seeking individuals who can bring creative ideas to solve complex problems, both technical and procedural at the team and portfolio levels. The ability to be adaptable and to work constructively with a technically diverse and geographically separated team is crucial.

What you'll get to do:

As a Sr. Software Engineer/Developer working for the CBP ITI2.1 program, you will have a fast moving, challenging, and highly rewarding position keeping the infrastructure running that helps CBP keep our borders safe on all travel entry and exit modalities. These modalities include air, land, and sea for entry and exit at various ports of entry.

  • Provide hands-on leadership for web-based application development support in .NET core for a range of custom-built applications, across multiple browsers, as well as providing technical guidance to a small team of developers.

  • Responsible for research, design, and implementation of creative development solutions, and maintenance and support of legacy solutions.

  • Create deliverables for design and deployment, and have experience working with customers, identifying, and implementing development standards and best practices,

  • Mentor a small team of developers

  • Responsible for several applications and for all phases of the build process from planning to design, development, and release. The position will be supporting the various border security efforts of CBP and may include biometric technologies such as facial recognition, RFID enabled documents, license plate reading technologies, data analytics, IoT, and other border security technologies.

  • Design and develop .Net applications including middleware applications, user interface applications (java script framework), and web services applications.

  • Responsible for developing and integrating with Microsoft SQL server databases.

  • Responsible for developing software design documentation which may include design diagrams, data flow diagrams, software module descriptions, etc. Use Integrated Development Environment (IDE) tools to include Microsoft Visual Studio and GIT Manage software testing activities to include data setup, defect troubleshooting and resolution.

  • Provide Tier 3 / 4 engineering support, as needed, for solutions deployed to production.

You have:

  • Must be a U.S. Citizen with the ability to pass CBP background investigation, criteria includes, but not limited to:

  • 3-year check for felony convictions

  • 1-year check for illegal drug use

  • 1-year check for misconduct such as theft or fraud

  • Bachelor's Degree in Computer Science, Software Engineering, System Engineering, or a directly related field is required and 7 years of experience of software development in .NET and a comprehensive understanding of design patterns, or distributed system design and development with Microsoft C# .NET environment

  • Agile development Soft Skills/Other Requirements, such as proactive approach to problem solving, excellent troubleshooting and resolution skills, and delivery mindset

  • Excellent verbal and written communication skills

  • Experience working within formal lifecycle frameworks where formal customer approval of project deliverables was required

  • 5 or more years of experience leading development teams, preferably supporting federal government programs

  • Familiarity with Agile SecDevOps methods

  • Middleware and User Interface driven applications

  • Multi-threaded applications; Exception handling

  • Integration with hardware devices and vendor SDKs

  • Web Services development

Must be available to work a hybrid schedule with an on-site requirement in Sterling, VA

Bonus would be having:

  • Linux experience

  • LDAP experience

  • vue.js

  • bootstrap-vue

  • node.js / NPM / Yarn

  • HTML and Javascript

  • SASS, LESS and CSS Skills

  • HTTP(S) stack

  • Webpack, Babel, Polyfill, etc.

  • .NET Core 2.x

  • ASP.NET Web API, RESTFul HTTP Programming

  • EF Core

  • Code First with Entity Framework

  • SQL Server

  • Git, Git Tools and SVN

  • Jenkins, Jira, Confluence

  • PowerShell, Python and/or Bash

  • Docker and Linux experience

  • AWS experience

  • Mobile platform development

  • Experience in using web frameworks such as AJAX, Struts, Hibernate, Bootstrap and Spring, etc.

  • Experience in creating and using EJBs

  • Experience working with PL/SQL in packages and code blocks

What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground in your career and in our legacy.

Your potential is limitless. So is ours.

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