- Own OCS vendor engagement: technical lead on all vendor integration discussions.
- Configure OCS data model: Plan ID, Account ID, Quota, Balance, Credit, Expiry lifecycle.
- Integrate OCS with Entitlement Server (profile update API — Diameter Ro/Gy).
- Build account provisioning flow: create OCS account on SIM activation event.
- Configure product catalogue: plans, bundles, add-ons, data passes.
- Implement quota management APIs: top-up, deduction, balance query.
- Implement credit balance and start/end (expiry) lifecycle management.
- Collaborate with other team members to integrate OCS as workflow activities.
- OCS ↔ PCRF integration: quota threshold → policy trigger via Diameter Gx.
- Billing reconciliation and reporting APIs.
- OCS production deploy, failover configuration, and load testing.
- Post go-live: OCS operations, new plan launches, quota adjustments, billing investigations.
Must Have
- 4–6 years of telecom charging / billing engineering experience — a must.
- Required: OCS platform hands-on experience — a must.
- – Configuration, administration, and troubleshooting of an OCS — any vendor: Ericsson, Huawei, Nokia, Netcracker, Alepo, PortaOne, Aradial, opensource, etc.
- – Understanding of online charging architecture: CTF, OCF, Rating, Account Balance Management.
- Required: Diameter protocol — must be able to read and debug Diameter messages independently — a must.
- Ro interface (online charging) — credit control, used for OCS ↔ network element.
- – Gy interface — for OCS ↔ PGW/GGSN data charging.
- – Gx interface — for OCS/PCRF policy and charging rules.
- Product catalogue management: plans, bundles, quota pools, validity rules — a must.
- Balance management: top-up, consumption, threshold triggers, expiry — a must.
- REST API integration — consuming and building APIs for billing and account management — a must.
- SQL — querying and understanding OCS data models, billing databases — a must.
- Fluent English — a must.
Strong Advantage
- Experience with 3GPP charging standards (TS 32.240, 32.251, 32.299).
- MVNO or telecom operator experience — understanding of MVNO billing models.
- Entitlement Server / PCRF integration experience.
- Webbing server / OCS middleware configuration.
- Experience connecting OCS to a workflow engine or orchestration platform.
Nice to Have
- eSIM provisioning and charging — GSMA SGP.22, SM-DP+.
- Roaming charging: TAP/RAP, NRTRDE, inter-operator settlement.
- Python or Go — for scripting, test tooling, Temporal activity development.
- Kubernetes — understanding how OCS components are deployed.
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- Fully remote
- An exciting and challenging greenfield platform with great skill and knowledge development opportunities.
- The opportunity to join a team of highly professional specialists in an international environment.
- The opportunity for professional development within a reputable international innovative and growing company.
Skills Required
- 4-6 years of telecom charging / billing engineering experience
- OCS platform hands-on experience
- Configuration, administration, and troubleshooting of an OCS from any vendor
- Understanding of online charging architecture
- Ability to read and debug Diameter messages independently
- Product catalogue management experience
- Balance management experience
- REST API integration experience
- SQL querying experience
- Fluent English
What We Do
Webbing is a global data MVNO that delivers innovative enterprise grade, global connectivity and IoT services. Our secured network of 600+ mobile carriers across more than 200 countries, ensures superior data connectivity between business, people and things wherever the device is located. Since our foundation in 2010, we have been developing revolutionary SIM technology, powerful management platforms and a robust global network. Our leading-edge solutions deliver a streamlined, centralized, and scalable means of deploying and managing organizations' global fleet of devices. Our experts assist in every step of the device on boarding process to ensure you are set up to meet your organization’s connectivity needs. Enterprise customers can manage, monitor, and optimize data usage in real-time with Webbing’s dynamic software platform. Gain visibility by application type and have the power to safe list applications and limit non-business applications with the click of a button, saving money and improving compliance. Our superior technology combined with our solid strategic partnerships provide our customers with the perfect balance of the benefits of a local and roaming carrier. We deliver the reach of a global carrier with the quality of a local one with a single carrier that has flexible offerings, low latency, and sustainability at competitive rates.
