Senior Mobile Core Architect

OXIO

Senior Mobile Core Architect managing cloud mobile platform designed for proprietary mobile networks at OXIO. Responsible for configuration, troubleshooting, and telecom interconnection with third-party providers.

Posted 6/23/2026full-timeRemote • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

LinuxUnix

About the role

Key responsibilities & impact

Configuration of STPs, DRAs, HLR/HSS, SMSC, SGSN, GGSN/PGW, SBC, etc.
Along with the team, you will be responsible for being able to manage all equipment on our network.
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.
Drive the implementation of telecom interconnection in relationship with our providers
Maintenance, troubleshooting, security audits, and emergency response
Wireshark tracing of critical infrastructure to debug issues
Occasional on-call requirements

Requirements

What you’ll need

At least 10 years’ experience in the core network domain with a mobile networks
Holding a BSc degree in Telecommunication or Computer Science (post-graduate studies are a bonus)
10+ years core telecommunications network experience
10+ years of experience with SS7, Sigtran, Diameter, Packet Switched (GGSN/PGw, GTP, GRX, IPX, etc.)
Circuit switched communications protocols such as SS7 (including SCCP, TCAP, MAP and CAMEL phases 1 to 4), SCTP (SIGTRAN), Diameter, including ability to design and configure voice and messaging flows
Voice SIP / RTP, ISUP and voice convergence technologies, including IMS (including VoLTE and VoWiFi)Knowledge (general) in Voice Mail, IVR and PBX systems / softphones (secondary)
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
Online Charging System (OCS) and CAMEL in billing and call control
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

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account OXIO Website LinkedIn All Job Openings 51 - 200 employees 📡 Telecommunications ☁️ SaaS 💳 Fintech Telecommunications
SaaS
Fintech OXIO is a telecom company offering a cloud-native, programmable Telecom-as-a-Service platform that empowers businesses to launch and manage their own mobile networks. The company's platform, BrandVNO, enables the creation of custom mobile connectivity services without telecom expertise, allowing organizations to integrate these services seamlessly into their existing operations. OXIO provides tools for business intelligence, subscriber management, and personalized customer experiences, targeting retail, fintech, and various enterprise sectors. The company's API-first approach facilitates rapid innovation, cost reduction, and enhanced customer engagement across multiple markets. Senior Mobile Core Architect Job not on LinkedIn 🔥 0 minutes ago 🇺🇸 United States – Remote ⏰ Full Time 🟠 Senior 🏛️ Architect Apply Now Find Hiring Managers Customize resume + cover letter Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Configuration of STPs, DRAs, HLR/HSS, SMSC, SGSN, GGSN/PGW, SBC, etc.
Along with the team, you will be responsible for being able to manage all equipment on our network.
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.
Drive the implementation of telecom interconnection in relationship with our providers
Maintenance, troubleshooting, security audits, and emergency response
Wireshark tracing of critical infrastructure to debug issues
Occasional on-call requirements 🎯 Requirements
At least 10 years’ experience in the core network domain with a mobile networks
Holding a BSc degree in Telecommunication or Computer Science (post-graduate studies are a bonus)
10+ years core telecommunications network experience
10+ years of experience with SS7, Sigtran, Diameter, Packet Switched (GGSN/PGw, GTP, GRX, IPX, etc.)
Circuit switched communications protocols such as SS7 (including SCCP, TCAP, MAP and CAMEL phases 1 to 4), SCTP (SIGTRAN), Diameter, including ability to design and configure voice and messaging flows
Voice SIP / RTP, ISUP and voice convergence technologies, including IMS (including VoLTE and VoWiFi)Knowledge (general) in Voice Mail, IVR and PBX systems / softphones (secondary)
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
Online Charging System (OCS) and CAMEL in billing and call control
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 Apply Now 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score Similar Jobs Ontology Architect 🔥 8 hours ago Tiger Analytics 1001 - 5000 🤖 Artificial Intelligence 🤝 B2B Website LinkedIn All Job Openings Ontology Architect leading high-impact applied Engineering and analytics initiatives at Tiger Analytics. Designing ontologies and knowledge graphs to enhance business performance. 🇺🇸 United States – Remote ⏰ Full Time 🟡 Mid-level 🟠 Senior 🏛️ Architect 🦅 H1B Visa Sponsor Architect, Builder Enablement 🔥 9 hours ago NBCUniversal 10,000+ employees 📱 Media Website LinkedIn All Job Openings Enterprise Architect for Builder Enablement at NBCUniversal, developing a cohesive technology ecosystem. Leading architectural principles, mentoring, and harmonizing systems within the organization. 🇺🇸 United States – Remote 💵 $195k - $230k / year ⏰ Full Time 🟠 Senior 🔴 Lead 🏛️ Architect 🦅 H1B Visa Sponsor Industrial Vision Architect – IoT Edge Solutions 🔥 11 hours ago Hitachi 10,000+ employees 🤖 Artificial Intelligence ⚡ Energy 🚗 Transport Website LinkedIn All Job Openings Architect and design edge-based computer vision solutions for automotive manufacturing. Lead technical architecture decisions and collaborate with engineering teams in IoT and Smart Manufacturing. 🇺🇸 United States – Remote ⏰ Full Time 🟠 Senior 🔴 Lead 🏛️ Architect 🦅 H1B Visa Sponsor Data Visualization Architect 🔥 11 hours ago GE HealthCare 10,000+ employees 💊 Pharmaceuticals Website LinkedIn All Job Openings Data Visualization Architect designing innovative Power BI solutions for GE HealthCare's US & Canada operations. Collaborating with diverse teams to improve patient outcomes through data insights. 🇺🇸 United States – Remote 💵 $123.2k - $184.8k / year ⏰ Full Time 🟡 Mid-level 🟠 Senior 🏛️ Architect 🦅 H1B Visa Sponsor Domain Architect 🔥 13 hours ago Stanley Black & Decker, Inc. 10,000+ employees 🔧 Hardware Website LinkedIn All Job Openings Domain Architect providing technical and functional expertise to engage stakeholders and develop solutions. Working remotely as part of the Corporate Information Technology team. 🇺🇸 United States – Remote 💵 $110.6k - $178k / year 💰 Post-IPO Debt on 2023-03 ⏰ Full Time 🟠 Senior 🔴 Lead 🏛️ Architect View More Architect Jobs 🌐 Worldwide Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com Search Search Jobs by country Search jobs by city Search jobs by job title Search entry-level jobs Search junior-level jobs Search senior-level jobs Search jobs by tech stack Search jobs by contract type Search remote internships Search remote part-time jobs Remote jobs Anywhere in the World Companies Hiring Anywhere in the World Companies Hiring Sales People Anywhere in the World Companies Hiring Software Engineers Anywhere in the World Resources Advice Tips for finding remote jobs Interview questions and answers Resume examples Cover letter examples Post a job Affiliates Privacy policy Terms of service Job board SEO course AI Apply Copilot OpenClaw job finder Jobs by Country Remote jobs anywhere in the world (Worldwide remote jobs) Remote jobs United States Remote jobs Australia Remote jobs Brazil Remote jobs Canada Remote jobs France Remote jobs Ireland Remote jobs Germany Remote jobs Netherlands Remote jobs Spain Remote jobs UK Popular Jobs Remote data analyst jobs Remote customer support jobs Remote executive assistant jobs Remote marketing jobs Remote product designer jobs Remote product manager jobs Remote project manager jobs Remote recruiter jobs Remote sales jobs Remote software engineer jobs Jobs by Type Remote full-time jobs Remote part-time jobs Remote contract jobs Remote internship jobs Remote entry-level jobs Remote jobs with no experience required Remote junior jobs (1-3 years of experience) Digital nomad jobs Remote jobs with no degree required Freelance remote jobs Temporary remote jobs Remote jobs hiring now Stay at home mom jobs

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Hard Skills & Tools

SS7SigtranDiameterPacket SwitchedSCTPVoice SIPRTPISUPLinuxWireshark

Soft Skills

communicationadaptabilitypressure managementwritingdocumentation

Certifications

BSc in TelecommunicationBSc in Computer Science