Telecom Services Validation Engineer

Role Overview Webbing’s telecom platform is composed of multiple deeply integrated systems, each owned by a specialized technical team. Because service quality depends on how these components interact in production, this role owns end-to-end service validation and service-level accountability across Data, Voice, and SMS. For every new service or feature, this engineer designs and executes end-to-end testing to ensure all system components integrate correctly and deliver the expected customer experience. When issues occur, they investigate the full-service flow to determine where responsibility lies and ensure the issue is escalated to the correct owning team with clear technical context. This role does not own or fix individual system components; it owns understanding how components interact and determining which team is responsible when something breaks. Key Responsibilities End-to-End Testing & Validation Design and execute end-to-end test plans for Data, Voice, and SMS services across: Core network components CMP integrations External vendors, carriers, and aggregators Perform functional, integration, regression, sanity, and production-readiness testing Validate new services, features, and cross-system changes before production rollout Build automated tests for end-to-end telecom flows using APIs and backend interfaces. Research, evaluate, and integrate telecom testing tools and platforms (e.g., Sigos or similar), including use of available APIs Troubleshooting complex issues Act as the end-to-end service triage owner for complex issues escalated from Support Investigate incidents across the full-service flow to determine which domain or team owns the issue (e.g., Core, IP, R&D, Vendor, Carrier) Analyze logs, CDRs, signaling flows, and system behavior to identify the responsible component, and escalate to the correct team. After every escalation, update procedures or service documentation so that future similar issues can be routed directly by Support. Documentation & Knowledge Enablement Own end-to-end service clarity, ensuring that documentation for flows, dependencies, and failure scenarios exists and is understandable by Support Validate that troubleshooting procedures are clear, accurate, and actionable for NOC and Customer Support teams Identify documentation gaps exposed during incidents and drive the relevant teams to create or update content Ensure lessons learned from escalations are reflected in procedures so Support can independently handle future cases Requirements 5+ years of experience in troubleshooting complex issues in the telecom world. Strong understanding of telecom services and flows (Data, Voice, SMS) Ability to analyze logs, backend systems, and service behavior across multiple components Strong analytical thinking and troubleshooting mindset Ability to work independently and cross-functionally Fluent English with clear technical communication skills Advantages Experience with mobile core networks, roaming, or telecom operations Familiarity with 2G / 3G / 4G / 5G architecture and signaling Experience using packet analysis tools (e.g., Wireshark) Knowledge of IP networking and protocols (TCP/IP, routing, firewalls, network security) Experience working closely with NOC or Customer Support teams. Exposure to telecom testing platforms (e.g., Sigos or similar tools) Experience testing APIs (REST/SOAP) using tools such as Postman, Swagger, or curl Experience with bug tracking and test management tools About Webbing Founded in early 2010, Webbing is a global data MVNO that delivers enterprise grade, global connectivity and IoT services across more than 200 countries and 600+ mobile carriers' networks. Webbing's secured network delivers network protection and web content intelligence. Enterprise customers can manage, monitor, and optimize data usage in real-time with Webbing's powerful software platform. Gain visibility by application type and have the power to white list applications and limit non-business applications with the click of a button, saving money and improving compliance. What we offer Hybrid work Work life balance Parking Food allowance Cellular plan Unlimited data plan for traveling Discount memberships Growth opportunities Professional development budget Global company- working and collaborating with amazing people around the world Fun working environment & company activities And of course, air hockey, pool table, and ping-pong tournaments!