OXIO is the world’s first telecom-as-a-service (TaaS) platform. We are democratizing telecom and making it easily accessible for brands and enterprises to fully own and operate proprietary mobile networks designed to support their own customers needs. Our TaaS solution combines multiple existing networks into one single platform that can be seamlessly managed in the cloud as a modern SaaS offering. And it gets better - with full network access comes unparalleled business intelligence and insights to help enterprises better understand customer and machine (M2M) behavior. With a continuous focus on innovation, any company can build a powerful telecom presence with OXIO, and in addition help them glean unique customer insights like never before.

The IMS/VoLTE Integration Engineer will analyze, prepare, implement and verify the configuration and integration of a node, network and/or system. Your scope of work could include the scenarios of introduction, upgrade expansion, functionality and capacity. Your work will in part form our customer legacy.

Key Responsibilities:

Manage networks and nodes within the IMS domain for our 2.5G, 3G & 4G networks (SIP, H323, IMS/IMT, VoLTE, VoWiFi)
Using dashboards (and building new ones) to clearly and quickly discover issues and patterns
Accountable and responsible to follow the communications procedures in place when handling an incident. Communication is both internal within our company and external to our third-party providers.
Maintenance, troubleshooting, security audits, and emergency response
Undertake fault handling and corrective actions on node, service and infrastructure level
Handle project activities, implementing / adapting (new) IMS E2E service functionalities, nodes, services
When needed, cover the 7x24 monitoring shift responsibilities (On call support, etc.)
Wireshark tracing of critical infrastructure to debug issues
Provide input, implement and verify improvements in processes and work instructions ·
Verify and implement configuration changes
Work to identify and drive improvement

Key Qualifications:

Holding a Bachelor's Degree in Telecommunication or Computer Science (post-graduate studies are a bonus) and 10+ years core telecommunications network experience
Working knowledge of telecom networks like 2G, 2.5G, 3G and LTE (MME, SGW, PGW, and MME)
Great Conceptual understanding of IMS evolution and trends - IMS Subsystems, functionalities and IMS services call flows.
Great knowledge of IMS network topology (their various interfaces), Core IMS Parameters and Features
Worked on different type of Core Nodes, CSFB, IMS (P-CSCF, I-CSCF, S-CSCF, MTAS, HSS, CUDB, MGCF, etc.)
Experience with SS7, ISUP, BICC, SIP, H248, Diameter signaling & protocols configuration change IMS based services is necessary
Operation and maintenance of IMS platforms for Alarms, faults/abnormal conditions handling, Analysis of traces, High troubleshooting skills, system backup/restore from backup files, Fault Diagnostics, Preventive Maintenance & upgrades of IMS nodes
Configuration preparation & implementation for configuration changes requests for IMS nodes and Integration for all nodes (S-CSCF, I-CSCF, MTAS, HSS, CUDB, etc.) as well
Hands on with sniffers, Wireshark and testing tools in advanced mode
Hands on with Linux/Unix based systems (you can find your way around a linux shell)
Understanding of 3GPP, ITU-T and ANSI standards
Understanding of roaming agreements and IR.21, including IREG testing
VoLTE Troubleshooting and call trace analysis
Strong writing and documentation skills are needed to develop reports
Adaptability and responding to change
Be able to work under pressure
You are fluent in English (written and spoken)
Ready to work on morning/afternoon shifts
Good interaction with external customers and internal teams

What We Offer:

Competitive salary and stock option incentive program
Company contribution towards comprehensive benefit packages
Flexible work arrangements
Company sponsored team-lunches and company retreats
International organization that enables you to work across boundaries, travel to different locations and enjoy the dynamics of a rapidly growing startup
The opportunity to work with a talented and supportive team
A diverse and inclusive team

OXIO is committed to fostering a diverse, equitable, and inclusive workplace where all employees feel valued and empowered. We believe that diversity in all its forms drives innovation and creativity, and we strive to create an environment that reflects and celebrates the unique backgrounds, perspectives, and talents of our employees. We do not discriminate against any employee or applicant for employment based on race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age, disability, genetic information, veteran status, or any other characteristic protected by applicable federal, state, or local law. We are dedicated to providing a work environment free from discrimination and harassment. We committed to ensuring that all qualified applicants have an equal opportunity to apply for job openings. If you need assistance or an accommodation due to a disability, please contact us at hr@oxio.io for more information.

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