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Freelance Ip Multimedia Subsystem Jobs (NOW HIRING)

Stellent IT LLC

EPC Developer

Dallas, TX · On-site

IMS (IP Multimedia Subsystem) VoLTE / VoNR (Voice over LTE / Voice over New Radio) Soft Skills: Excellent documentation and reporting skills Strong problem-solving and analytical thinking Effective ...

Implify Inc

Wifi Cable Tester

Moorestown, NJ

At least 4 years of experience with Information technology Preferred At least 4 years of experience in SIP / VoIP and IMS ( IP - Multimedia Subsystems ) At least 2 years of experience in software ...

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Freelance Ip Multimedia Subsystem information

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$55.5K

$104.1K

$151.5K

How much do freelance ip multimedia subsystem jobs pay per year?

As of Aug 5, 2026, the average yearly pay for freelance ip multimedia subsystem in the United States is $104,124.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,000.00 and $131,500.00 per year, depending on experience, location, and employer.

What is the difference between Freelance Ip Multimedia Subsystem vs Freelance VoIP Engineer?

AspectFreelance Ip Multimedia SubsystemFreelance VoIP Engineer
CredentialsKnowledge of IMS architecture, certifications in networking or telecomCertifications in VoIP, networking, SIP protocols
Work EnvironmentTelecom companies, network providers, consulting firmsTelecom providers, VoIP service companies, IT consultancies
Industry UsageDesign and implement IMS solutions for telecom networksDeploy and troubleshoot VoIP systems and services
Search & Comparison IntentUnderstanding IMS architecture and implementationVoIP system setup, troubleshooting, and optimization

Freelance Ip Multimedia Subsystem specialists focus on designing and implementing IMS networks, requiring telecom-specific knowledge. Freelance VoIP Engineers primarily work on deploying and maintaining VoIP systems. While both roles involve telecom and networking skills, IMS is broader and more complex, whereas VoIP is more specialized in voice communication services.

More about Freelance Ip Multimedia Subsystem jobs
What cities are hiring for Freelance Ip Multimedia Subsystem jobs? Cities with the most Freelance Ip Multimedia Subsystem job openings:
What are the most commonly searched types of Ip Multimedia Subsystem jobs? The most popular types of Ip Multimedia Subsystem jobs are:
What states have the most Freelance Ip Multimedia Subsystem jobs? States with the most job openings for Freelance Ip Multimedia Subsystem jobs include:
What job categories do people searching Freelance Ip Multimedia Subsystem jobs look for? The top searched job categories for Freelance Ip Multimedia Subsystem jobs are:
Freelance Ip Multimedia Subsystem jobs near you
Infographic showing various Freelance Ip Multimedia Subsystem job openings in the United States as of July 2026, with employment types broken down into 1% Locum Tenens, 59% Full Time, 13% Part Time, 2% Temporary, 24% Contract, and 1% Nights. Highlights an 60% Physical, 2% Hybrid, and 38% Remote job distribution, with an average salary of $104,124 per year, or $50.1 per hour.

EPC Developer

Stellent IT LLC

Dallas, TX • On-site

Other

Re-posted 12 days ago

Job description

EPC Developer
Remote(100%)
Phone + Skype
Job Description:
Key Responsibilities:
Design, implement, and troubleshoot 4G/5G EPC components.
Analyze and optimize call flows across EPC and 5G Core.
Work with network protocols including GTP, Diameter, SCTP, TCP/IP, and HTTP/2.
Develop and integrate solutions aligned with 3GPP standards.
Use tools such as Wireshark and tcpdump for network trace analysis and troubleshooting.
Support containerized deployments using Docker and Kubernetes.
Collaborate in cloud-based environments, including OpenStack.
Maintain clear and comprehensive technical documentation.
Coordinate with cross-functional teams to resolve complex issues.

Technical Expertise:
4G EPC Components:
MME (Mobility Management Entity)
SGW (Serving Gateway)
PGW (Packet Gateway)
HSS (Home Subscriber Server)
PCRF (Policy and Charging Rules Function)
5G Core Components:
AMF (Access and Mobility Management Function)
SMF (Session Management Function)
UPF (User Plane Function)
NRF (Network Repository Function)
PCF (Policy Control Function)
AUSF (Authentication Server Function)
Standards & Interfaces:
Familiarity with 3GPP standards for EPC and 5GC
Key interfaces:
4G: S1, S5/S8, S11, Gx, Gy
5G: N1, N2, N3, N4, N6, N10
Network Protocols:
GTP, Diameter, SCTP, HTTP/2, TCP/IP
Call Flows:
Strong understanding of end-to-end call flows for both 4G and 5G networks
Virtualization & Cloud-Native Technologies:
OpenStack
Docker
Kubernetes
Additional Knowledge:
IMS (IP Multimedia Subsystem)
VoLTE / VoNR (Voice over LTE / Voice over New Radio)
Soft Skills:
Excellent documentation and reporting skills
Strong problem-solving and analytical thinking
Effective communication and teamwork
Ability to thrive under pressure in a dynamic environment
Detail-oriented with a proactive approach
Preferred Qualifications:
Bachelor's degree in Computer Science, Telecommunications, or a related field
3+ years of experience in telecom core network development
Experience with CI/CD pipelines and automation tools is a plus
BADAL KANOJIA
IT TECHNICAL RECRUITER
Contact No: 2015814818
Email: Badal@stellentit.com
Gtalk; Badal@stellentit.com
    Stellent IT logo

    About Stellent IT

    Sourced by ZipRecruiter

    Stellent IT, based in St Augustine, Florida, USA, is a renowned company in the IT sector whose primary focus is providing top-tier IT consulting and staffing services. Stellent IT's expertise lies not just in fulfilling IT staffing needs but in offering comprehensive technological solutions that enhance and drive business performance. Despite the limited information about their founding history, the company has earned a name for itself in the IT industry due to its commitment to quality and consistent delivery. With a mission centered around helping businesses efficiently navigate the IT landscape by providing strategic technology-inspired solutions, Stellent IT prides itself as a leader in its field.

    Industry

    Recruiting and staffing services

    Company size

    11 - 50 Employees

    Headquarters location

    St Augustine, FL, US

    Social media

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