Technical Lead (Charging & Mediation)
Telia Company13 days ago
Vilnius, LithuaniaStaff+
Responsibilities
- Own and evolve the technical architecture of charging, mediation, and payment gateway platforms.
- Lead integration between IT and network domains, including charging interfaces, CDR/EDR flows, and network element integrations.
- Drive the 5G Standalone and service-based architecture roadmap while maintaining legacy 2G/3G/4G services until decommissioning.
- Lead architectural decisions, vendor platform upgrades, and cloud-native modernization.
- Act as the senior technical escalation point for complex production, performance, and revenue-impacting incidents.
- Improve reliability, observability, security, and revenue assurance for real-time business-critical systems.
- Evaluate vendor and partner solutions, review designs, and maintain high technical standards.
- Partner with engineers, Product Owners, and the Engineering Manager to reduce technical debt, simplify systems, and develop team capability.
Requirements
- At least 5 years of experience building, integrating, or operating telco BSS/OSS systems, ideally in charging, mediation, rating, or billing.
- Strong understanding of mobile network architecture from 2G through 5G Standalone, including CS core, GPRS/EPC, IMS, and 5GC.
- Hands-on knowledge of 3GPP charging principles and protocols, including Diameter Gy/Ro/Rf, CAMEL, CDR formats, and 5G Nchf interfaces.
- Strong understanding of distributed systems, high availability, concurrency, performance, and observability in real-time, high-throughput environments.
- Experience incrementally modernizing large systems, including vendor-delivered platforms.
- Ability to evaluate technical solutions, make pragmatic trade-offs, and influence direction across teams, vendors, and stakeholders.
- Experience using AI-assisted development and operations tools while maintaining high engineering standards.
- Fluent English; Lithuanian is an advantage.
- Preferred experience with payment gateway or carrier billing solutions, VoLTE/VoNR, IMS service charging, Kubernetes, OpenShift, Linux, SQL, Python, Bash, and Kafka.
Benefits
- Additional health insurance and pension plans.
- Work from anywhere in the EU for up to 30 days per year.
- Up to five additional vacation days based on tenure.
- Discounts on Telia services, including free home internet, plus partner discounts.
- Telia Kids Club summer camps for employees’ children.
- Company-supported sports activities including yoga, basketball, and running.
- Internal training, leadership programs, and job-shadowing opportunities.
- Applications are requested by November 30, 2026, though the position may close earlier; background and reference checks are part of the process.
Tech Stack
Categories
About Telia Company
Telia Company builds and operates mobile and fixed networks, broadband, TV, and related IT/IoT services for consumers, businesses, and wholesale partners across the Nordics and Baltics. It earns revenue from subscriptions, connectivity, and enterprise solutions, including managed network and cloud services. The company is publicly listed (Nasdaq Stockholm) and headquartered in the Stockholm area, with national operations in Sweden, Finland, Norway, Denmark, Estonia, Latvia, and Lithuania.