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Ruby On Rails Developer Contract Jobs in Washington, DC

MANTECH

Telephony Engineer

Mclean, VA · On-site

Develop and troubleshoot applications using PowerBuilder, Korn shell, and Ruby on Rails ... Proficiency in Ruby programming and the Ruby on Rails framework, along with strong experience in ...

MANTECH

Telephony Engineer

Mclean, VA

Develop and troubleshoot applications using PowerBuilder, Korn shell, and Ruby on Rails ... Proficiency in Ruby programming and the Ruby on Rails framework, along with strong experience in ...

MANTECH

Telephony Engineer

Mclean, VA · On-site

Develop and troubleshoot applications using PowerBuilder, Korn shell, and Ruby on Rails ... Proficiency in Ruby programming and the Ruby on Rails framework, along with strong experience in ...

ManTech International

Telephony Engineer

Mclean, VA · On-site

Develop and troubleshoot applications using PowerBuilder, Korn shell, and Ruby on Rails ... Proficiency in Ruby programming and the Ruby on Rails framework, along with strong experience in ...

ManTech

Telephony Engineer

Mclean, VA

Develop and troubleshoot applications using PowerBuilder, Korn shell, and Ruby on Rails ... Proficiency in Ruby programming and the Ruby on Rails framework, along with strong experience in ...

Vanda Pharmaceuticals

Back End Developer

Washington, DC · On-site

... Developer to design, develop, and maintain scalable web applications. The role involves building ... Ruby on Rails and modern frontend technologies • Build responsive and high-performance user ...

New

AppFolio

Sr Software Engineer - Accounting

Washington, DC · On-site +1

$138.70K - $182.90K/yr

Engineers work in small, focused, cross-functional teams comprised of a product manager, user ... Knowledge of Ruby on Rails and experience working with a language like Ruby, Java, or Python.

Collabera

Jr. Web Developer

Columbia, MD · On-site

Columbia, MD Job Duration: 6+ Months Contract Job Responsibilities: Design and Development of ... Strong understanding on Ruby on RaIls. Experience working in a fast paced, work-on-your-own ...

Signal Vine, LLC

Platform Engineer

Alexandria, VA · On-site

Your main focus will be building our custom DSL, you will also be expected to work on all aspects of the Signal Vine tech platform, including tasks such as maintaining our Ruby on Rails application ...

Signal Vine, Llc

Platform Engineer

Alexandria, VA · On-site

Your main focus will be building our custom DSL, you will also be expected to work on all aspects of the Signal Vine tech platform, including tasks such as maintaining our Ruby on Rails application ...

Full Scope

Systems Engineer (VHDL)

Glen Burnie, MD

Systems Engineer (VHDL) Location: Linthicum, MD Required Clearance : TS/SCI w/ Full-Scope Poly ... Experience with software languages (Java, C, C++, Ruby on Rails). * Hands-on experience with Xilinx ...

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$28.9K

$138.3K

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How much do ruby on rails developer contract jobs pay per year?

As of May 30, 2026, the average yearly pay for ruby on rails developer contract in Washington, DC is $138,305.00, according to ZipRecruiter salary data. Most workers in this role earn between $116,100.00 and $159,100.00 per year, depending on experience, location, and employer.

What is a Ruby On Rails Developer Contract job?

A Ruby on Rails Developer Contract job is a temporary role where a developer is hired to build, maintain, or improve applications using the Ruby on Rails framework. These contracts can range from a few months to a year or more, depending on the project's scope. Contractors typically work on web applications, backend systems, or API development. They may be hired by startups, agencies, or larger companies looking for specialized expertise without committing to a full-time role.

What are the key skills and qualifications needed to thrive in the Ruby On Rails Developer Contract position, and why are they important?

To thrive as a Ruby On Rails Developer Contract, you need strong proficiency in Ruby, Rails framework, RESTful APIs, and SQL databases, typically demonstrated through professional experience or relevant computer science education. Familiarity with version control systems like Git, testing frameworks (such as RSpec), and deployment tools is essential, while certifications or open-source contributions can be advantageous. Excellent problem-solving skills, adaptability, and effective communication are crucial soft skills for collaborating with distributed teams and delivering client-focused solutions. These abilities are vital to ensure robust, maintainable code and successful project outcomes within contract-based, time-sensitive work environments.

What are the typical day-to-day responsibilities for a contract Ruby On Rails Developer?

As a contract Ruby On Rails Developer, your daily tasks usually include developing and maintaining web applications, writing clean backend code, integrating third-party services, and troubleshooting technical issues as they arise. You'll often participate in virtual standups or meetings with cross-functional teams, collaborate on feature planning, and provide input on best practices for code quality and application architecture. Additionally, you may be responsible for writing tests, updating documentation, and assisting with direct deployments depending on the team's workflow. This dynamic environment provides opportunities to work with various technologies and businesses, making each contract both challenging and rewarding.
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Ruby On Rails Developer Contract jobs near you
Full Stack Software Engineer - Ruby-on-Rails/Java experience

Full Stack Software Engineer - Ruby-on-Rails/Java experience

General Dynamics Mission Systems, Inc

Manassas, VA • On-site

$112.92K - $125.28K/yr

Full-time

Medical, Retirement

Posted 9 days ago

General Dynamics Mission Systems rating

8.2

Company rating: 8.2 out of 10

Based on 28 frontline employees who took The Breakroom Quiz

74th of 183 rated software companies

Job description

Basic Qualifications
Requires a Bachelor's degree in Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred.
CLEARANCE REQUIREMENTS:: Department of Defense Secret security clearance is obtainable within a reasonable amount of time after hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.
Responsibilities for this Position
ROLE AND POSITION OBJECTIVES:
As a Senior Software Developer, you will be part of a team of engineers working to deliver a comprehensive SecDevOps software solution for the US Navy that provides automated functional testing and cybersecurity analysis of software payloads. This is a relatively small team that moves fast, you will be supported and enabled to begin contributing as soon as you are ready.
What you'll experience:
  • Develop software in Ruby on Rails and Vue.js within a Linux/Kubernetes environment to deliver an efficient capability for performing cybersecurity assessments
  • Building and supporting container environments (Azure, Docker, Kubernetes)
  • Write code, test, integrate and document software solutions
  • Analyze system, functional, and performance requirements and how they impact new or existing code
  • Conduct software peer reviews for others on your team
  • Perform software unit test, and supporting integration and test
  • Shape future products by contributing to the architecture framework used across multiple products or systems

We encourage you to apply if you have any of these preferred skills or experiences:
  • 5+ years experience as Full Stack Developer
  • Experience working with frameworks like Vue and Ruby on Rails
    • If not, experience with similar frameworks like React and Java Spring may be applicable
  • Hands-on experience building Single Page Applications and Model View Controller (MVC) Applications
  • Experience using Linux (basic OS comprehension and basic shell scripting), preferably Red Hat or derivatives
  • Collaboration in Agile teams (Scrum, Kanban) to deliver high-quality software

What you'll experience:
  • Develop software in Ruby on Rails and Vue.js within a Linux/Kubernetes environment to deliver an efficient capability for performing cybersecurity assessments
  • Building and supporting container environments (Azure, Docker, Kubernetes)
  • Write code, test, integrate and document software solutions
  • Analyze system, functional, and performance requirements and how they impact new or existing code
  • Conduct software peer reviews for others on your team
  • Perform software unit test, and supporting integration and test
  • Shape future products by contributing to the architecture framework used across multiple products or systems

What You Bring to the Table:
  • Strong understanding of software engineering principles and lifecycle
  • Experience with testing methods like TDD, BDD, and various types of software testing (unit, integration, end-to-end) (Vitest, RSpec, Playwright)
  • Expertise in object-oriented design and development
  • Familiarity with Linux, REST APIs, and database management (SQL, PostgreSQL)
  • Knowledge of automation tools (GitOps, CI/CD) and security practices (PKI, certificates)
  • Ability to write clean, production-ready code following good coding practices

What sets you apart:
  • Technical leadership experience
  • 2+ years experience working with Azure or similar cloud platforms
  • 2+ years experience working with Kubernetes or similar container orchestration platforms
  • Strong understanding of software development process, as well as software engineering concepts, principles, and theories
  • Hands-on experience with RobotFramework and Software Analysis Tools (SAST/DAST)
  • Experience with Argo Workflows, OpenShift, Kubevirt
  • Creative thinker capable of applying new information quickly to solve challenging problems
  • Team player who thrives in collaborative environments and revels in team success
  • Commitment to ongoing professional development for yourself and others
  • Identifies opportunities to apply AI for continuous improvement and innovation

Our Commitment to You:
  • An exciting career path with opportunities for continuous learning and development.
  • Research oriented work, alongside award winning teams developing practical solutions for our nation's security
  • Flexible schedules with every other Friday off work, if desired (9/80 schedule)
  • Competitive benefits, including 401k matching, flex time off, paid parental leave, healthcare benefits, health & wellness programs, employee resource and social groups, and more
  • See more at gdmissionsystems.com/careers/why-work-for-us/benefits

Workplace Options:
Candidate must be able to work onsite, with the flexibility to work from home at least 2 days a week. While on-site, you will be a part of the Manassas VA facility.
Salary Note
This estimate represents the typical salary range for this position based on experience and other factors (geographic location, etc.). Actual pay may vary. This job posting will remain open until the position is filled.
Combined Salary Range
USD $112,924.00 - USD $125,275.00 /Yr.
Company Overview
General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. With a global team of 12,000+ top professionals, we partner with the best in industry to expand the bounds of innovation in the defense and scientific arenas. Given the nature of our work and who we are, we value trust, honesty, alignment and transparency. We offer highly competitive benefits and pride ourselves in being a great place to work with a shared sense of purpose. You will also enjoy a flexible work environment where contributions are recognized and rewarded. If who we are and what we do resonates with you, we invite you to join our high-performance team!
Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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