Solutions Engineer (SS7 Signalling and IP Routing)

The world still has coverage blind spots. You could help eliminate them at Skylo.

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. Were not building toward this future. Were already in it.

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. And were just getting started.

At the heart of it all is Skylos commercial NTN vRAN: a 3GPP standards-based cloud-native platform that seamlessly bridges terrestrial and satellite networks. Its the infrastructure that makes true anywhere anytime connectivity possible.

When you join Skylo youll 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 worlds most remote places.

This is a rare chance to work on technology that matters at a company thats already proving it works

This role is fully remote in the United States.

Skylo is seeking a highly technical hands-on Signaling and Routing Specialist to turn each Mobile Network Operators (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.

• Routing Configuration: Design and configure Signaling DRA/DEA routing peers connections realms Diameter identities and relevant GT and point-code mappings.

• Profile Translation: Translate IR.21/RAEX inputs into accurate version-controlled operational configurations.

• IP & DNS Coordination: Plan interconnect IP addressing and coordinate DNS/ENUM APN realm resolution firewall/ACL and IPX peering changes.

• IREG Execution: Own end-to-end IREG-side testing for network registration attach sequences S6a/S6d authentication SGd SMS and NIDD where applicable.

• Trace Analysis: Analyze signaling traces (Wireshark) and resolve failures spanning Skylo the IPX provider and the partner MNO.

• Component-Level Isolation: Navigate and collaborate with Skylo IPX partners and MNO IPX teams to isolate routing and configuration issues at the component level.

• Standardization: Establish clean change-control peer-review rollback and documentation practices creating LLD (Low-Level Design) documents for every interconnection.

• Cross-Functional Partnering: Partner with internal Network Engineering NOC Security Product and external MNO technical teams through go-live and stabilization.

• 10 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.

• NB-IoT NTN NIDD MME registration troubleshooting SS7/MAP STP or IoT roaming experience.

• Hands-on experience with Signalling & IP configuration in Core network.

• Automation experience using Python APIs infrastructure as code or network testing frameworks.

With employees working across three continents Skylo is proud to be an equal opportunity employer dedicated to building an inclusive and diverse workforce. Our worldwide culture encourages a flexible approach to work and we offer an attractive range of 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

• A once-in-a-career opportunity to operate the worlds first commercial live direct-to-device satellite network

• Access to a world-class team across software hardware chipsets telecom satellite and network virtualization

• Open transparent inclusive culture that blends Silicon Valley Nordic and South Asia characteristics

The estimated base salary range for this role is:

• San Francisco CA: $155000 $165000

• Other US Locations: $135000 $145000

Within the range individual pay is determined by work location and additional factors including job-related skills experience and relevant training.

In addition to base salary Skylo offers a competitive benefits package including health insurance retirement plans paid time off and equity options.

Skylo is an equal-opportunity employer and we celebrate diversity. We do not discriminate based on race religion color ancestry national origin caste sex sexual orientation parent or caregiver status political affiliation gender gender identity or expression age disability medical condition pregnancy genetic makeup marital status or military service consistent with applicable federal state and local laws.

We are also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. Please let us know if you need assistance or accommodation due to a disability.

Required Experience:

IC