Connectivity Test Engineer

Job title: Connectivity Test Engineer

About the Role You will join a dedicated DXC Luxoft team embedded within the client's connectivity testing department to verify the TCAM cellular modem across simulated network conditions representing 2G, 3G, LTE, and 5G. The engagement is structured as an increment-based delivery with onboarding in October 2026 and a project duration through 31 December 2028.

What You'll Do

• Verify TCAM cellular modem behavior (TCAM 1.1, 2, 3, 4) in simulated network conditions; test voice, SMS, and data across GSM, 3G, LTE, and 5G.
• Validate eCall, legal eCall, and next-generation eCall functionality; test DualAPN logic for multiple markets (HU, RO, SK, IS, GR).
• Confirm VoLTE/VoNR, IMS Registration, and circuit-switched voice behavior; verify network reject code handling and modem recovery logic; validate eCall-only mode for country-specific regulatory requirements.
• Develop and maintain automated test cases using Robot Framework and Python; migrate existing test suite to TCAM2 and extend coverage to TCAM3/TCAM4; maintain CI/CD pipeline (Git, Gerrit, Jenkins) and keep it green; integrate test results into CarWeaver verification verdict system; manage defects and work items in Jira.
• Operate and maintain mobile network simulators (Keysight Anite 9000 SAS, Keysight UXM E7515A, and R&S CMW/CMX500); develop and maintain simulator services in Python; ensure simulator availability for the test team.
• Act as SME during TCAM and mobile network troubleshooting; review planned TCAM implementations for Network Friendliness Mode; investigate voice-centric to data-centric mode migration; contribute to pre-certification testing for new TCAM variants with mobile network operators.

What We're Looking For

• Hands-on experience with Robot Framework for test automation; Python scripting for test frameworks, simulator services, and data processing.
• Solid understanding of cellular technologies: GSM, 3G, LTE, 5G; knowledge of NAS signaling, EMM, IMS, VoLTE.
• Experience working with CI/CD pipelines (Git, Gerrit or similar, Jenkins); ability to read and interpret 3GPP specifications; experience with defect tracking and Jira; comfortable with Linux-based toolchains.
• Direct experience with Keysight Anite 9000, Keysight UXM E7515A, or R&S CMW/CMX500 is a plus.

Nice to Have

• Experience in automotive telematics or connected car platforms.
• Familiarity with eCall standards (EN 16072, 3GPP TS 26.267).
• Experience with MQTT-based service communication.
• Knowledge of CarWeaver or similar verification verdict management tools.
• Previous work in an OEM or Tier-1 automotive supplier environment.
• Experience with modem configuration and market adaptation testing.
• Prior involvement with CarWeaver or related verification verdict systems; exposure to simulator services in Python.

Compensation & Benefits

• Not specified in the posting.