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Temp Ruby Rails Jobs (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 ... Provide local travel support between customer buildings or temporary assignment to alternate ...

ManTech

Telephony Engineer

Mclean, VA

$165K - $295K/yr

Develop and troubleshoot applications using PowerBuilder, Korn shell, and Ruby on Rails ... Provide local travel support between customer buildings or temporary assignment to alternate ...

Luminoustec LLC

Software Developer

New York, NY · On-site

Company Description Luminous Tec, LLC is a leading staffing firm and provider of temporary and ... .Net, Ruby on Rails, Big Data, Hadoop, Data Warehousing, Business Analysis, Testing, Database ...

Luminoustec LLC

Software Developer

New York, NY

Company Description Luminous Tec, LLC is a leading staffing firm and provider of temporary and ... .Net, Ruby on Rails, Big Data, Hadoop, Data Warehousing, Business Analysis, Testing, Database ...

Tamus

Research Assistant

College Station, TX · On-site

$16 - $22/hr

... Type Temporary/Casual Staff (Fixed Term) Our Commitment Texas A&M University is committed to ... Proficiency in programming languages such as Python and frameworks like Ruby on Rails. * Hands-on ...

Ametek

Manager, Manufacturing Operations FP&A

Pierceton, IN · On-site

$97K - $128K/yr

Ability to function as a temporary Controller within the Division if and when a need may arise ... Advanced PowerPoint skills to assist in the compilation of presentations for budget, ROR's, ...

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Telephony Engineer

Telephony Engineer

ManTech International

Mclean, VA • On-site

$165K - $295K/yr

Full-time

Medical, Life, Retirement, PTO

Re-posted 10 days ago

ManTech rating

9.0

Company rating: 9.0 out of 10

Based on 14 frontline employees who took The Breakroom Quiz

27th of 205 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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