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Ruby Rails Developer Jobs in Washington, DC (NOW HIRING)

ManTech International

Telephony Engineer

Mclean, VA · On-site

$165K - $295K/yr

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

VoIP Systems Engineer

Mclean, VA

$165K - $295K/yr

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 ...

Collabera

Jr. Web Developer

Columbia, MD

Position Details Job Title: Jr. Web Developer Job Location: Columbia, MD Job Duration: 6+ Months ... Strong understanding on Ruby on RaIls. Experience working in a fast paced, work-on-your-own ...

Veredus - DC

Jr. DataBase Developer

Washington, DC

$75K - $98K/yr

Experience with Ruby on Rails JRUBY, Java JBOSS, Tourquebox Business Intelligence and Data ... Candidates with Engineering, Computer Science or related field preferred or related field plus 3+ ...

NewGen Technologies

Software Developer

Herndon, VA

Our Partner is seeking a Full Performance Developer to support a dynamic program. The current ... Examples include JavaScript, Java; ASP.NET * Scripting languages (Perl, PHP, Ruby on Rails); and ...

Choice Consulting Associates

Web Developer

Reston, VA · On-site

Java, PHP, ASP.NET, Javascript or Ruby on Rails * Deep experience with relational database systems, Object Oriented Programming and web application development * Excellent knowledge of how web ...

NewGen

Software Developer

Herndon, VA · On-site

Our Partner is seeking a Full Performance Developer to support a dynamic program. The current ... Examples include JavaScript, Java; ASP.NET * Scripting languages (Perl, PHP, Ruby on Rails); and ...

Choice Consulting Associates

Web Developer

Reston, VA · On-site

Java, PHP, ASP.NET, Javascript or Ruby on Rails * Deep experience with relational database systems, Object Oriented Programming and web application development * Excellent knowledge of how web ...

WILLCOR, Inc.

Systems Engineer (VHDL)

Glen Burnie, MD · On-site

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 ...

WILLCOR Inc

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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All JobsRuby Rails Developer JobsRuby Rails Developer Jobs in Washington, DC

Ruby Rails Developer information

See Washington, DC salary details

$28.9K

$138.3K

$194.2K

How much do ruby rails developer jobs pay per year?

As of Jul 14, 2026, the average yearly pay for ruby rails developer in Washington, DC is $138,254.00, according to ZipRecruiter salary data. Most workers in this role earn between $116,000.00 and $159,100.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Ruby Rails Developer, and why are they important?

To thrive as a Ruby Rails Developer, you need expertise in Ruby programming, a solid understanding of the Rails framework, and experience with web development fundamentals such as HTML, CSS, and JavaScript. Familiarity with tools like Git, databases (e.g., PostgreSQL, MySQL), and cloud platforms, along with knowledge of testing frameworks and continuous integration systems, is typically expected. Problem-solving abilities, attention to detail, and strong communication skills help developers effectively collaborate and deliver robust solutions. These skills ensure high-quality, maintainable code and enable efficient teamwork in fast-paced development environments.

What Does a Ruby Rails Developer Do?

Ruby on Rails is a server-side framework for developing websites, databases, and web services. "Rails" is the name of the overall development framework. As a Ruby Rails developer, you write code for server-side applications in a language called Ruby. After programming your solutions, your responsibilities focus on testing your work and performing debugging duties if necessary. You may also check and improve existing applications. You usually work as part of a development team, and you help integrate other elements, such as database functions, into the framework. Employers may expect you to work with front-end development languages such as HTML and JavaScript.

How do Ruby on Rails developers typically collaborate with front-end teams during a project?

Ruby on Rails developers often work closely with front-end developers to ensure seamless integration between the application's back-end logic and user interface. Collaboration usually involves regular code reviews, shared documentation, and effective use of version control systems like Git. Communication tools such as Slack and project management platforms like Jira help keep both teams aligned on project goals, feature requirements, and timelines. This teamwork ensures that back-end APIs and front-end components are well-coordinated, leading to a smooth development process and high-quality end product.

What does a Ruby on Rails Developer do?

A Ruby on Rails Developer specializes in building web applications using the Ruby programming language and the Rails framework. Their responsibilities include designing, developing, and maintaining scalable and efficient web applications, writing clean and testable code, and collaborating with other developers and stakeholders. They often work with databases, APIs, and front-end technologies to deliver complete solutions. Ruby on Rails Developers also troubleshoot issues, optimize performance, and ensure the security of the applications they create.
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What are popular job titles related to Ruby Rails Developer jobs in Washington, DC? For Ruby Rails Developer jobs in Washington, DC, the most frequently searched job titles are:
What job categories do people searching Ruby Rails Developer jobs in Washington, DC look for? The top searched job categories for Ruby Rails Developer jobs in Washington, DC are:
Ruby Rails Developer jobs near you
Infographic showing various Ruby Rails Developer job openings in Washington, DC as of July 2026, with employment types broken down into 81% Full Time, 9% Part Time, 1% Temporary, and 9% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $138,254 per year, or $66.5 per hour.
Telephony Engineer

Telephony Engineer

ManTech International

Mclean, VA • On-site

$165K - $295K/yr

Full-time

Medical, Life, Retirement, PTO

This job post has expired today. Applications are no longer accepted.

ManTech rating

9.0

Company rating: 9.0 out of 10

Based on 14 frontline employees who took The Breakroom Quiz

30th of 209 rated software companies

Job description

General information
Requisition #
R67420
Locations
USA-VA-McLean
Posting Date
04/29/2026
Security Clearance Required
TS/SCI w/ Poly
Remote Type
Onsite
Time Type
Full time
Description & Requirements
Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now-unleash your potential with MANTECH!
MANTECH seeks a motivated, career and customer-oriented Telephony Engineer to join our team in McLean, VA. In this role, you'll combine expertise in telephony systems, Linux server management, and software development, focusing on VoIP, analog, ISDN systems, and Ruby on Rails for telephony applications.
Responsibilities include, but are not limited to:
  • Design, develop, and maintain voice media gateways for VoIP, analog, and ISDN systems. Install, configure, and troubleshoot telephony hardware and media gateways across secure networks.
  • Leverage BESS Billing and Provisioning Tools to optimize telephony systems and ensure seamless service delivery.
  • Configure and maintain Linux servers (Ubuntu, CentOS) for hosting telephony and web applications, ensuring performance, security, and scalability. Develop and troubleshoot applications using PowerBuilder, Korn shell, and Ruby on Rails.
  • Integrate telephony systems (e.g., IVR, call routing) into web applications using Ruby on Rails. Modernize legacy code and ensure reliable operation of telephony solutions.
  • Maintain clear technical documentation and provide ongoing support for telephony system integration, performance optimization, and troubleshooting.
  • Provide training and guidance to team members and stakeholders on telephony system integration, BESS tools, and server management best practices. Ensure comprehensive understanding of application workflows and troubleshooting processes.
  • Provide local travel support between customer buildings or temporary assignment to alternate locations for special projects.
  • Work an 8 hour shift as part of a coverage team operating between 6:00 AM and 6:00 PM. May need to flex shift as required.

Minimum Qualifications:
  • High School Diploma with 13+ years of experience or an Associate's Degree with 11+ years of experience, or a Bachelor's Degree with 9+ years of experience.
  • Familiarity with BESS Billing and Telephony Provisioning Tools.
  • Experience integrating telephony systems with web applications (e.g., handling inbound/outbound calls, IVR, call routing).
  • Advanced knowledge of Linux server management (Ubuntu, CentOS), including installation, configuration, troubleshooting, and performance optimization.
  • Strong verbal and written communication skills to interact effectively with cross-functional teams.

Preferred Qualifications:
  • Proficiency in Ruby programming and the Ruby on Rails framework, along with strong experience in telephony system integration.
  • Experience with scripting languages, including PowerBuilder and Korn shell, for system administration tasks.
  • Oracle Database Administrator certification is a plus.
  • Experience in provisioning telephony services.

Clearance Requirements:
  • Must have a current/active TS/SCI with Polygraph

Physical Requirements:
  • Must be able to remain in a stationary position at least 50% of the time. Constantly operate a computer, phone, and other office equipment for extended periods of time.

The projected compensation range for this position is $165,900.00-$295,300.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.
MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.

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