Technology Operation Engineer

Responsibilities

• Operations & Maintenance
• Operate, monitor, and maintain IN/VAS, OCS, PCRF, STP, SBC, SMSC, IVR, SIM/eSIM, and VMS platforms.
• Perform health checks, preventive maintenance, backups, and incident resolution within SLA.
• Manage alarms, traces, and logs to proactively detect service-impacting issues.
• Plan and execute system upgrades, patches, and security fixes in close coordination with vendor system support teams , ensuring proper testing, rollback plans, and minimal service impact during maintenance windows.
• OCS - Rating, Tariffs, Offers & Promotions
• Operate and configure the Online Charging System for real-time prepaid/converged charging.
• Define rating logic, tariff plans, rate tables, and zone/time-based charges for voice, SMS, data, and roaming.
• Design and manage offers, bundles, add-ons, promotions, loyalty rewards, and recharge bonuses .
• Configure service classes, accumulators, counters, and Diameter Gy/Gx/Rx interfaces.
• Ensure charging accuracy and zero revenue leakage ; support CDR/EDR analysis and dispute resolution.
• PCRF / Policy Control
• Configure and maintain PCRF/PCF policies for QoS, FUP, throttling, and service-based control.
• Manage Gx, Gy, Rx, Sy, Sd interfaces with PGW, OCS, and IMS.
• Implement use cases such as zero-rated services, sponsored data, and dynamic QoS.
• SMSC & A2P Partner Management
• Operate and maintain the SMSC for P2P, A2P, and MO/MT messaging.
• Onboard and manage A2P partners and aggregators via SMPP (binds, throttling, routing, whitelisting).
• Implement SMS firewall policies to block grey routes, spam, and smishing.
• Ensure A2P revenue protection, partner SLA compliance, and SMS KPI monitoring.
• Signaling (STP) & SBC
• Operate the STP system for SS7/SIGTRAN routing; manage point codes, linksets, and GTT.
• Operate SBC platforms for SIP/VoLTE/IMS security, codec handling, fraud prevention, and call quality.
• Coordinate signaling and SIP interconnection with the host MNO and external partners.
• SIM/eSIM & Voucher Management
• Manage SIM/eSIM/OTA platforms for profile creation, provisioning, and lifecycle operations.
• Operate the Voucher Management System for voucher generation, distribution, redemption, and reconciliation, including e-Top-Up integration.
• IT Applications Integration
• Integrate IN/VAS/OCS/PCRF/SMSC/SIM/VMS platforms with BCRM, Billing, Mediation, ERP, Self-Care .
• Maintain real time triggers and file export to external systems like Notifiation application and and mediation systems ensuring data consistency and transaction integrity.
• Host MNO Coordination
• Act as the technical focal point with the Host MNO for all IN/VAS, signaling, charging, SMS, and IMS matters.
• Coordinate integration, testing, change management, and joint troubleshooting.
• Manage technical SLAs, interface agreements, and operational reviews with the host operator.
• Project & Change Management
• Participate in upgrades, migrations, capacity expansions, and new node integrations.
• Prepare MOPs, perform impact analysis, and execute changes during maintenance windows.
• Conduct end-to-end testing and acceptance of new services.
• Customer Complaint Resolution
• Investig

Benefits

Additional Information

We don't think about job roles in a traditional way. We are anti-silo. Anti-career stagnation. Anti-conventional. Beyond ONE is a digital services provider radically reshaping the personalised digital ecosystems of consumers in high growth markets around the world. We're building a digital services aggregator platform, with a strong telco foundation, and a profitable growth strategy that empowers users to drive their own experience-subscribe once, source from many, and only pay for what you actually use. Since being founded in 2021, we've acquired Virgin Mobile MEA, Friendi Mobile MEA and Virgin Mobile LATAM (with 6.5 million subscribers) and 1600 dedicated colleagues across Chile, Colombia, KSA, Kuwait, Mexico, Oman, Pakistan and UAE. To disrupt for good takes a rebellious spirit, a questioning mind and a warm heart. We really care about how to get things done and not who manages who. We benefit from our diversity, and together, we disrupt the way we and others thinking about our lives for good. Do you want to exchange ideas, learn from each other and leave your mark on our journey? This is the place for you. Technology Operation Engineer IN&VAS Engineering Department: Technology Operation / IN&VAS Engineering Reports To: Senior Technology Operations Manager Job Summary The Technology Operation Engineer is responsible for the design, deployment, operation, and maintenance of Intelligent Network (IN) and Value-Added Services (VAS) platforms, including OCS, PCRF, STP, SBC, SMSC, SIM/eSIM management, and Voucher Management Systems (VMS). The role ensures high availability, charging accuracy, and seamless integration with the Host MNO , A2P SMS partners , and IT applications (BCRM, Billing, Mediation, Self-Care) , while ensuring full regulatory compliance and timely customer complaint resolution.

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