{"id":4022926,"url":"https://alion.io/job/globallogic-network-qa-engineer-lte5g-modem-project","title":"Network QA Engineer – LTE/5G Modem Project","company":{"id":46391,"name":"GlobalLogic","domain":"globallogic.com","url":"https://alion.io/company/globallogic","size_band":null,"is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","truth_index":null},"role":"QA","role_family":"QA","seniority":null,"employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Ukraine"],"countries":["UA"],"hiring_countries":["UA"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CoAP","optional":false},{"name":"Linux","optional":false},{"name":"MQTT","optional":false},{"name":"Nmap","optional":false},{"name":"Tcpdump","optional":false},{"name":"Wireshark","optional":false},{"name":"DHCP","optional":true},{"name":"DNS","optional":true},{"name":"Jira","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-11-10T15:09:49Z","employer_posted_date":null,"last_verified_at":"2026-11-10T15:09:49Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"We are looking for a Network QA Engineer to test the performance and reliability of our LTE/5G modems. You will join a dynamic team dedicated to developing and testing multi-layer networking solutions. In this hands-on role, you will configure Linux-based testbeds, perform deep-packet protocol analysis, and optimise data path throughput, latency, and stability. Beyond core connectivity, you will also lead the validation of critical IoT and higher-layer protocols, including MQTT, CoAP, and LwM2M.\n\nRequired Skills:\n\nCore Network Fundamentals: In-depth understanding of the OSI model, including addressing, interfaces, protocols, and Protocol Data Units (PDUs) across layers.\n\nRouting, Switching & Addressing: Proficiency in IP subnetting, hands-on static routing configuration, and solid theoretical knowledge of Layer 2/3/4 concepts (VLANs, MAC / ICMP, ARP / NAT, Firewall).\n\nTraffic & Debugging Tools: Hands-on experience debugging network traffic and measuring bandwidth using Wireshark, tcpdump, iperf, netcat, nmap, and netstat.\n\nLinux Command Line Proficiency: Strong proficiency in working within a Linux command line interface (CLI) environment without a graphical UI.\n\nIntermediate spoken and written English skills\n\nDesired skills:\n\nMobile Operator & Telecom Background: Experience working with mobile network operators, cellular infrastructure, or telecommunications protocols is a strong plus\n\nEnvironment Configuration: Practical experience configuring essential network services and protocols (DHCP, DNS, NAT, HTTP/HTTPS) and Linux network security via iptables to build testbeds\n\nPython Scripting: Ability to write Python scripts for test automation, data collection or log parsing.\n\nQA Best Practices: Experience with test case management, bug-tracking tools (e.g., Jira), and software/hardware testing lifecycles.\n\nJob Responsibilities\n\nTestbed & Environment Setup: Configure and maintain Linux-based test environments, including static routing, subnetting, core network services (DHCP, NAT), and firewall rules (iptables) to simulate realistic operational and edge-case network conditions for the modem.\n\nModem Testing & Validation: Design and execute functional, performance, and stability test scenarios for new features on the LTE/5G modem.\n\nData Path & Traffic Analysis: Generate traffic across IP interfaces, measure throughput, latency, and jitter, and conduct deep packet capture and protocol analysis across multi-layer data paths.\n\nIssue Triage & Debugging: Isolate and debug connectivity failures, packet drops, and performance regressions using packet analysis tools and modem log outputs.\n\nReporting: Document detailed test results, track defects, and collaborate with engineering teams to isolate root causes.","description_format":"text","description_chars":2744,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Ukraine","iso":"UA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Outsourcing & Dedicated Teams","Custom Software 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