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. The assignment covers verification of the TCAM (Telematics & Connectivity Antenna Module) — the cellular modem embedded in modern connected vehicles — across simulated mobile network conditions representing 2G, 3G, LTE, and 5G technologies. The engagement starts with onboarding in October 2026 and runs through 31 December 2028.

What You'll Do

• TCAM Verification: Verify TCAM cellular modem behavior (TCAM 1.1, 2, 3, 4) in simulated network conditions; Test voice, SMS, and data services across GSM, 3G, LTE, and 5G technologies; Verify eCall, legal eCall, and next-generation eCall functionality; Test DualAPN logic for multiple markets (HU, RO, SK, IS, GR); Validate VoLTE/VoNR, IMS Registration, and circuit-switched voice behavior; Test network reject code handling and modem recovery logic; Verify eCall-only mode for country-specific regulatory requirements.
• Test Automation & CI: Develop and maintain automated test cases using Robot Framework and Python; Migrate existing test suite to TCAM2; extend coverage to TCAM3 and TCAM4; Maintain and improve the CI/CD pipeline (Git, Gerrit, Jenkins) — keep the pipeline green; Integrate test results into CarWeaver verification verdict system; Manage defects and work items in Jira.
• Simulator & Lab Operations: 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 and reliability for the test team.
• SME Contributions: Act as subject matter expert during TCAM and mobile network troubleshooting; Review planned TCAM implementations for Network Friendliness Mode; Investigate voice-centric to data-centric mode migration requirements; Contribute to pre-certification testing for new TCAM variants with mobile network operators.

What We're Looking For

• Must have: Hands-on experience with Robot Framework for test automation; Python scripting — test frameworks, simulator services, data processing; Solid understanding of cellular technologies: GSM, 3G, LTE, 5G; Knowledge of mobile network protocols: 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 work management in Jira; Comfortable with Linux-based toolchains and command-line environments; Direct experience with Keysight Anite 9000, Keysight UXM E7515A, or R&S CMW/CMX500.
• 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.
• Languages: English — C1 Advanced.