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Ruby on Rails Developer

CACI International

Chantilly, VAFull-time$121–266K/yrSeen 2 days agoSeen in employer's feed 2 days ago

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At a glance

Compensation
$121–266K/yr
Location
Chantilly, VA
Schedule
Full-time
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

CompTIA Security+ Certification, requiredTS/SCI clearance, required

Job overview

CACI seeks a Ruby on Rails Developer to build, enhance, and modernize web applications supporting a government customer. The developer will work on an Agile team across a portfolio of more than 40 applications, collaborating with analysts, testers, project leads, and customers. The role includes application development and modernization, testing and deployment support, and opportunities to work with AWS, C#/.NET, and AI-assisted development tools.

Skills & qualifications

RequiredNice to have

Skills

Ruby on Rails, requiredWeb Application Development, requiredHTML, requiredJavaScript, requiredCSS, requiredSQL, requiredRelational Databases, requiredWeb Development Principles, requiredSoftware Engineering Practices, requiredCoding Standards, requiredApplication Security, requiredTechnical Analysis, requiredProblem Solving, requiredCommunication, requiredCollaboration, requiredTechnical Judgment, requiredAWS, nice to haveCloud Architectures, nice to haveCI/CD Pipelines, nice to haveAutomated Testing, nice to haveSoftware Deployment, nice to haveWeb APIs, nice to haveApplication Integrations, nice to haveData Conversion, nice to haveApplication Modernization, nice to haveAgile, nice to haveAI-Assisted Development, nice to haveDoD/IC Environments, nice to have

Qualifications

2+ Years Relevant Development Experience, requiredActive TS/SCI Clearance With CI Polygraph, requiredCompTIA Security+ Certification, requiredBachelor's in Related Field or Equivalent Experience, nice to have

Benefits

Paid Time Off
Tuition Assistance
Medical Insurance
401(k) Match

Full job description

Job Title: Ruby on Rails Developer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI with Polygraph

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local


The Opportunity:

CACI is seeking a Ruby on Rails Developer to build, enhance, and modernize web-based applications supporting a government customer. As part of an Agile development team, you'll help deliver reliable, user-focused solutions across a portfolio of 40+ applications.

You'll work with Ruby on Rails, HTML5, JavaScript, CSS, SQL, and Amazon Web Services (AWS), collaborating with analysts, testers, project leads, and customers throughout the Agile software development lifecycle. You'll contribute to delivering quality software through established development and deployment practices, with opportunities to support application migrations, work with C#/.NET, and explore AI-assisted development tools that enhance coding, testing, and other development workflows.

Responsibilities:

  • Design, develop, enhance, and maintain complex Ruby on Rails applications, emphasizing performance, security, reliability, and maintainability.

  • Analyze requirements and application dependencies, recommend implementation approaches, estimate development efforts, and assess technical feasibility, risks, and impacts across interconnected systems.

  • Collaborate with business analysts, project leads, testers, subject matter experts, and customers to translate requirements into effective application solutions.

  • Develop and review technical specifications, write maintainable code, build and integrate APIs and data conversion routines, and perform unit testing.

  • Support application testing and CI/CD deployments by diagnosing complex defects, identifying root causes, and coordinating resolutions.

  • Contribute to application migrations and modernization initiatives, identifying opportunities to improve functionality and leverage AWS and related technologies.

  • Maintain technical documentation, follow configuration management and release standards, and identify opportunities to improve development workflows, including through AI-assisted tools.

Qualifications:

Required:

  • Minimum of two (2) years of relevant web development or software development experience.

  • Active TS/SCI clearance with CI Polygraph.

  • Demonstrated experience developing, testing, and supporting web applications using Ruby on Rails.

  • Hands-on experience with HTML, JavaScript, CSS, SQL, and relational databases.

  • Strong understanding of web development principles, software engineering practices, coding standards, and application security.

  • Ability to analyze complex technical issues, assess application dependencies and potential impacts, and recommend effective solutions with minimal supervision.

  • Strong analytical, problem-solving, communication, and collaboration skills, with the ability to take ownership of development tasks and exercise sound technical judgment.

  • Ability to obtain CompTIA Security+ certification within the first six (6) months.

Desired:

  • Bachelor's degree in Computer Science, Information Systems, Software Engineering, or a related field, or equivalent work experience.

  • Experience developing, deploying, or supporting applications using AWS services and cloud-based architectures.

  • Familiarity with CI/CD pipelines, automated testing, and software deployment processes.

  • Experience developing or maintaining web APIs, application integrations, or data conversion routines.

  • Experience supporting application migrations, modernization initiatives, or enhancements to existing systems.

  • Familiarity with Agile software development methodologies and practices.

  • Experience using AI-assisted development tools or interest in applying AI to software development workflows.

  • Knowledge of or experience supporting Department of Defense (DoD) or Intelligence Community (IC) environments.

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.

Pay Range :

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is:

$120,800 - $265,800

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

How this job compares

Set against the 41,554 open Software Engineer jobs on Olive Jobs, counted November 10, 2026.

Pay
  • This posting$121–266K/yr
  • Virginia median$129–205K/yr1,548 salary ranges
  • US median$135–219K/yr33,110 salary ranges

This range's midpoint, $193K, is 14% above the Virginia median midpoint ($169K) — in the middle half of Software Engineer salary ranges in Virginia.

Openings
Olive Jobs lists 1,834 open Software Engineer jobs in Virginia and 41,554 across the US. 8% of them nationwide are listed as remote or flexible.
Hiring the most in Virginia
Experience
This posting asks for at least 2 years of experience — less than three in four Software Engineer postings that state a minimum ask for (median 5 years, across 34,072 postings).
Education
13,032 of the 41,554 open Software Engineer jobs (31%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 10, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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