Senior Solutions Engineer (Signaling & Routing)

Skylo Technologies • ,

9h • $135,000 - $165,000 • Remote

About The Position

Skylo is seeking a highly technical, hands-on Principal Signaling and Routing Specialist to turn each Mobile Network Operator’s (MNO) IR.21/RAEX profile into production-ready Diameter connectivity and validated live traffic. You will own the operational technical path from interconnect design through DRA/DEA configuration, IP/DNS/ENUM readiness, IREG execution, troubleshooting, and operational handoff.

Skylo has pioneered a standards-based approach to satellite connectivity. We connect smartphones and IoT devices directly to satellites. No special hardware, no entirely new networks. Just billions of existing devices, suddenly reachable anywhere on Earth. Our direct-to-device service is live on millions of activated devices across five continents, covering more than 72 million square kilometers, in partnership with leading satellite operators, mobile network operators, Tier-1 chipset makers, and OEMs worldwide. At the heart of it all is Skylo's commercial NTN vRAN: a 3GPP standards-based, cloud-native platform that seamlessly bridges terrestrial and satellite networks. When you join Skylo, you'll work at the intersection of three markets reshaping how the world stays connected: mass-market consumer devices, automotive, and industrial IoT. Enabling people outdoors and critical workflows in the world's most remote places. This is a rare chance to work on technology that matters, at a company that's already proving it works.

Requirements

• 8+ years of hands-on experience in mobile-core signaling, roaming interconnect, telecom solutions engineering, or network operations.
• Deep technical Diameter experience, including DRA/DEA configuration, realm routing, peer management, and S6a/S6d/SGd protocols.
• Strong IP interconnect fundamentals, including DNS/ENUM, routing, security controls, and firewall/ACL coordination over IPX/GRX networks.
• Advanced protocol analysis skills with the ability to read Wireshark traces to independently diagnose signaling failures.
• Proven experience translating complex IR.21/RAEX data into operational configurations and executing structured IREG validation.
• A disciplined approach to change management, documentation, configuration integrity, and live production risk.

Nice To Haves

• NB-IoT NTN, NIDD, MME registration troubleshooting, SS7/MAP, STP, or IoT roaming experience.
• Hands-on experience with Oracle DSR, Mavenir, Nokia, or comparable carrier-grade signaling platforms.
• Automation experience using Python, APIs, infrastructure as code, or network testing frameworks.

Responsibilities

• Design and configure Signaling, DRA/DEA routing, peers, connections, realms, Diameter identities, and relevant GT and point-code mappings.
• Translate IR.21/RAEX inputs into accurate, version-controlled operational configurations.
• Plan interconnect IP addressing and coordinate DNS/ENUM, APN, realm resolution, firewall/ACL, and IPX peering changes.
• Own end-to-end IREG-side testing for network registration, attach sequences, S6a/S6d authentication, SGd SMS, and NIDD where applicable.
• Analyze signaling traces (Wireshark) and resolve failures spanning Skylo, the IPX provider, and the partner MNO.
• Navigate and collaborate with Skylo IPX partners and MNO IPX teams to isolate routing and configuration issues at the component level.
• Establish clean change-control, peer-review, rollback, and documentation practices, creating LLD (Low-Level Design) documents for every interconnection.
• Partner with internal Network Engineering, NOC, Security, Product, and external MNO technical teams through go-live and stabilization.

Benefits

• Competitive compensation packages including a stock option-based equity program
• Comprehensive benefits including medical, dental, vision, and retirement plan
• Monthly allowances for wellness and education reimbursement
• A generous time-off policy, holidays, and the opportunity to temporarily work abroad

What This Job Offers

• Job Type: Full-time
• Career Level: Principal
• Education Level: No Education Listed