Connectivity Test Engineer
Kraków, PolskaKey offer highlights
Backend: Java / .NET / Node / Python
Looking for experts - senior/expert
QA: manual / automated testing
DevOps / Cloud: AWS, Azure, Docker, Kubernetes
Full-time
Description
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 work is structured as an increment commitment: the team owns a defined area of responsibility and delivers features quarterly, aligned to the client's Quarterly Sync planning cadence. The engagement starts with onboarding in October 2026 and runs through 31 December 2028.
What we offer
Global Relocation - (Relocation options; Experience in an international environment; Cross-cultural experience)
Recognition and Evaluation - (Feedback culture; Regular appraisals)
Time Off - (Annual holiday - 20 or 26 days. The duration of the leave depends on the overall seniority; Occasional leave - 1 or 2 days/ depending on the circumstances; Child care leave - 2 days or 16 hours per year; Absence due to force majeure - 2 days or 16 hours per year; Maternity Leave - 20 weeks; Parental Leave - 41 weeks; Paternity Leave - 14 days)
Luxoft Training Center - (Expert-led tech courses covering basic to advanced topics; Internal instructor-led soft skills courses; Comprehensive in-house self-learning resources for both soft and hard skills; Access to external self-learning libraries like ProQuest eBook and Udemy for Business; Cloud Programs: MS Cloud Academy, AWS Partner Academy, Google Cloud Academy; Custom Learning Programs: upskilling, reskilling, technical mentorship; Leadership Programs for Managers)
Well-being and Work-life Balance - (Multisport card; Possibility to order Multisport card at the corporate rate for family members; LuxGood Program: wellbeing seminars, contests, relaxation sessions, yoga sessions, etc.; One Team Program: Buddy for each New Joiner; seminars, meeting and workplace space to support integration with local community and culture; “Hire me” workshops for partners; Preferential banking offer; Preferential car leasing offer; Cafeteria program discounts for shops, cinema tickets, holiday offers; Luxoft Social Benefit Fund: sport and recreation benefits, the possibility to receive financial support)
Health Care - (Private Healthcare Insurance with unlimited access to specialists; Full dental support; Travel Insurance; Possibility to add private healthcare coverage for family members at the corporate rate; Life insurance at the corporate rate for employees and family members, including payment of the basic package for the employee by the employer; Reimbursement for corrective glasses)
Company Events and Friendly Environment - (Many fun social activities organized by the Luxoft team offline in your city; Online entertainment events for whole company and local team events; A workplace where you’re treated with respect within a multicultural team)
Internal Mobility - (Rotation between projects and accounts; New career opportunities)
Self-Learning Library
CSR Projects
Other
Languages: English: C1 Advanced
Seniority: Regular
Requirements
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
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
Responsibilities
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
Keywords / Skills