Role & seniority

Telecom Device Testing Engineer — Mid to Senior level

Stack / tools

Platforms: CPEs, routers, switches, modems, handsets, IoT devices

Protocols: SIP, Diameter, TCP/IP, UDP, HTTP, SNMP, FTP

Networks: 2G/3G/4G/LTE, 5G, IMS, VoIP

Testing: functional, regression, interoperability, performance, certification testing

Tools: Wireshark, QXDM, Tems (and similar), defect management tools

Automation: (nice-to-have) test automation, scripting in Python/Shell

Certifications: (nice-to-have) PTCRB, GCF, FCC, CE

Top 3 responsibilities

Conduct functional, regression, interoperability, and performance testing of telecom devices across multiple network generations
Validate device behavior on 2G/3G/4G/LTE/5G networks; perform SIM, call flow, data session, SMS, VoLTE, and network handover testing
Analyze logs/traces, log and track defects, report metrics, and coordinate with development, network, and vendor teams to resolve issues; ensure compliance with telecom standards and regulatory requirements

Must-have skills

Strong telecom fundamentals and network architecture understanding
Hands-on telecom device testing experience; knowledge of wireless and wireline tech (LTE, 5G, IMS, VoIP)
Device configuration and troubleshooting skills
Familiarity with SDLC/STLC and defect life cycle
Strong analytical, debugging, and communication skills; experience in Agile environments
Java proficiency is a deal breaker (not required/desired)

Nice-to-haves

Full Description

Job Title: Telecom Device Testing Engineer

Location: Ipswich, UK (Hybrid)

Duration: 12+ Months

Job Summary: We are seeking a skilled Telecom Device Testing Engineer to validate and ensure the quality, performance, and compliance of telecom devices across various network technologies. The ideal candidate will have hands-on experience in device testing, network protocols, and telecom standards, with strong analytical and troubleshooting skills.

Responsibilities

Perform functional, regression, interoperability, and performance testing of telecom devices.
Validate device behavior across 2G / 3G / 4G / LTE / 5G network environments.
Execute testing on CPEs, routers, switches, modems, handsets, IoT devices, and other telecom equipment.
Conduct protocol testing for interfaces such as SIP, Diameter, TCP/IP, UDP, HTTP, SNMP, and FTP.
Perform SIM, call flow, data session, SMS, VoLTE, and network handover testing.
Analyze logs and traces using tools like Wireshark, QXDM, Tems, or similar.
Identify, log, track, and validate defects using defect management tools.
Coordinate with development, network, and vendor teams to resolve issues.
Ensure devices comply with telecom standards and regulatory requirements.
Prepare test plans, test cases, execution reports, and defect metrics.
Support certification and acceptance testing activities.

Mandatory Skills

Strong knowledge of telecom fundamentals and network architecture.
Hands-on experience in telecom device testing.
Understanding of wireless and wireline technologies (LTE, 5G, IMS, VoIP).
Experience with device configuration and troubleshooting.
Good understanding of SDLC/STLC and defect life cycle.
Strong analytical, debugging, and communication skills.
Experience working in Agile environments.
Deal Breaker: Java

Preferred Skills

Experience with automation testing for telecom devices.
Knowledge of OSS/BSS systems.