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Freelance Ruby On Rails Jobs in Chevy Chase, MD (NOW HIRING)

MANTECH

VoIP Systems Engineer

Mclean, VA · On-site

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.

MANTECH

VoIP Systems Engineer

Mclean, VA · On-site

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.

ManTech

VoIP Systems Engineer

Mclean, VA · On-site

$165K - $295K/yr

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 ...

ManTech International

VoIP Systems Engineer

Mclean, VA · On-site

$165K - $295K/yr

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 ...

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 ...

VTG

Senior Network Engineer

Chantilly, VA · Hybrid

$107K - $147K/yr

... Ruby on Rails, or similar development languages • Experience with Ansible, Puppet, Chef, or other infrastructure automation tools • Experience with Cisco NSO or similar network automation ...

Fantom Corporation

Sr Software Developer

Chantilly, VA · On-site

$55.75 - $73.75/hr

NET MVC and Ruby on Rails technologies * Develop and maintain ServiceNow applications, workflows, and platform enhancements * Build and enhance web interfaces using the ServiceNow Service Portal ...

Probity Inc.

VG Cloud Solutions Architect

Chantilly, VA · On-site

$67.25 - $85.50/hr

... Ruby on Rails, Bash, and Python. • Demonstrated experience with creating and updating procedures, and providing briefings/demos to users and management. Qualifications : Required : • This ...

VTG

Network Architect

Chantilly, VA

$67 - $89.75/hr

... Ruby on Rails • Experience with Infrastructure as Code (IaC) methodologies • Familiarity with Agile development methodologies • Strong experience supporting enterprise-scale architecture ...

Ra

Full Stack Developer

Washington, DC · On-site

You have experience working on the server-side using Node, Elixir, Ruby on Rails, Python / Django or similar. Additional Information All your information will be kept confidential according to EEO ...

inTALENTgent

Expert Software Developer

Herndon, VA

Experience with developing systems in Ruby on Rails \n * Proficient in CSS, HTML, JQuery, Ajax, JSON \n * Experience with database management (i.e. MySQL) \n * Experience with open\-source libraries ...

Ra

Full Stack Developer

Washington, DC · On-site

You have experience working on the server-side using Node, Elixir, Ruby on Rails, Python / Django or similar. Additional Information All your information will be kept confidential according to EEO ...

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How much do freelance ruby on rails jobs pay per year?

As of Aug 13, 2026, the average yearly pay for freelance ruby on rails in Chevy Chase, MD is $128,899.00, according to ZipRecruiter salary data. Most workers in this role earn between $108,200.00 and $148,300.00 per year, depending on experience, location, and employer.

What is a freelance Ruby on Rails?

A Freelance Ruby on Rails job involves working independently on projects that require expertise in the Ruby on Rails framework. Freelancers develop, maintain, and improve web applications for clients on a contract basis. They often handle backend development, database management, and API integrations. This role offers flexibility in workload, schedule, and client selection, making it ideal for remote work.

What are the key skills and qualifications needed to thrive as a freelance Ruby on Rails developer?

To thrive as a Freelance Ruby On Rails developer, you need solid expertise in Ruby, Rails framework, web development, and relevant front-end technologies, often supported by a degree in computer science or equivalent experience. Familiarity with tools like Git, PostgreSQL, Heroku, and continuous integration platforms, as well as knowledge of testing frameworks such as RSpec, is highly valued. Strong communication, time management, and client collaboration skills set top freelancers apart. These abilities are vital for delivering high-quality software solutions on schedule while effectively managing client relationships and independent workloads.

What are some typical challenges freelance Ruby on Rails developers face, and how can they be addressed?

Freelance Ruby On Rails developers often navigate challenges such as managing multiple client projects simultaneously, staying updated with evolving technology, and ensuring clear communication across remote teams. Setting up efficient workflows, using project management tools, and maintaining regular check-ins with clients can help manage workload and expectations. Additionally, dedicating time for continuous learning and networking with other developers can help you stay competitive in the field. By proactively addressing these challenges, freelance developers can build stronger client relationships and deliver consistent, high-quality results.

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VoIP Systems Engineer

MANTECH

Mclean, VA • On-site

Other

Re-posted yesterday

ManTech rating

9.0

Company rating: 9.0 out of 10

Based on 14 frontline employees who took The Breakroom Quiz

33rd of 244 rated software companies

Job description

MANTECH seeks a motivated, career and customer-oriented VoIP Systems 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.

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.

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