Chantilly, Virginia


Job Description:

We are looking for a Senior VoIP engineer to join our team in Chantilly, VA. The team is made-up of highly technical and motivated individuals. The engineer for this role will assist in troubleshooting complex problems and implementing cutting-edge solutions. As such, this individual must be an excellent problem solver and work well in a collaborative team environment. Candidate must have proven hands-on experience working as a VoIP engineer. OCONUS experience is desired.

The program is made up of CONUS and OCONUS teams who regularly interact across varying time zones. As a result, the engineer must have excellent communication skills and be flexible with regards to teamwork and multitasking. A demonstrated ability to perform in cross-functional teams in order to achieve results in a timely manner is desired.

Job Duties & Responsibilities

+ Install, configure, and troubleshoot Asterisk-based PBX/SBC systems, peripherals, and IP phones

+ Monitor entire VoIP infrastructure and provide regular reporting

+ Collaborate with Chief Network Engineer on VoIP optimization

+ Ensure VoIP system uptime, performance, and security

+ Document and enforce VoIP standards

+ Travel OCONUS as needed

+ Maintain VoIP system/network in Chantilly, VA lab

+ Perform other tasks as directed by Chief Network Engineer


+ University degree in Telecommunications, Network Engineering, Computer Science, or related subject

+ 12+ years relevant work experience --additional experience in lieu of degree considered

+ Extensive hands-on experience with Asterisk-based VoIP systems, Session Border Controllers, and VoIP Peripherals

+ Extensive hands-on experience with dial plans, IVRs, SIP, IAX, RTP, DIDs, codecs and other protocols

+ Solid understanding of traditional telephony, PRIs, BRIs, FXO/FXS, circuit-switching, POTS, PSTN, MTSO

+ Solid understanding of OSI model, firewalls, IP routing, IP switching, VLANS, and QOS/COS

+ Hands-on experience with network monitoring, network diagnostics, and network analytics tools

+ Hands-on experience installing/configuring/troubleshooting servers

+ Hands-on experience with Linux operating systems, i.e., Ubuntu, CentOS

+ Ability to work well individually, as well as within a team environment, and maintain professional behavior with all stakeholders at all times.

Additional Desired Qualifications

+ Subject Matter Expert (SME) in Asterisk, VoIP telecommunications, and VoIP protocols

+ Digium Certified Asterisk Administrator (dCAA) and/or Digium Certified Asterisk Professional (dCAP)

+ CCNA/CCNP Voice certification

Pay Range:Pay Range - -

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

REQNUMBER: R-00092356

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.

Chantilly, Virginia

At Leidos, quality performance means two things:

  1. Satisfying our customers by delivering the products and services they need on time and in budget.
  2. Continuously improving our processes so that our work meets requirements and is done right the first time.

Our proprietary EngineeringEdge® solution gives us a consistent, company-wide approach to planning, designing, developing, and delivering solutions that achieve our customers’ goals. Comprehensive and customizable, EngineeringEdge is based on industry standards and best practices from:

  • CMMI®, the CMMI Institute.
  • Project Management, the Project Management Institute.
  • the International Organization for Standardization (ISO®).
  • the International Council on Systems Engineering/INCOSE Corporation.
  • Electronic Industries Alliance.
  • Our four decades experience on a wide range of programs.

Many Leidos organizations have been able to earn coveted CMMI maturity level 3 and higher, as well as ISO 9001 organizational designations.

In addition, we have our own high standards for ethics and performance. Investors : Employee Code of Conduct

What does this mean to our clients? High quality products and services, developed in an environment committed to continuously improving processes and uncompromising ethics.