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Solutions Engineer – SS7 Signalling, IP Routing
SkyloSolutions Engineer enabling Skylo’s direct-to-device satellite connectivity through SS7 signaling, Diameter, and IP routing. Translating MNO profiles into production-ready interconnects and validating live traffic.
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates extensive expertise in mobile-core signaling and telecom solutions engineering, with a strong focus on Diameter configuration, IP interconnect fundamentals, and protocol analysis. Proven ability to manage complex interconnect designs and operational configurations while ensuring documentation and change management integrity.
Highest-signal resume keywords
Mobile-Core SignalingDiameter ConfigurationIP Interconnect FundamentalsProtocol Analysis with WiresharkChange Management
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
DRA/DEA ConfigurationRealm RoutingS6a ProtocolS6d ProtocolSGd ProtocolIR.21/RAEX Data TranslationIREG ValidationFirewall/ACL CoordinationAutomation with PythonInfrastructure as Code
Soft Skills
CollaborationProblem-SolvingDocumentation PracticesAttention to DetailDisciplined Approach
Tools & Technologies
WiresharkDNSENUMIPXGRXNetwork Testing Frameworks
Industry Keywords
Telecom Solutions EngineeringRoaming InterconnectNetwork OperationsNB-IoTNIDDMME Registration TroubleshootingSS7MAPSTPIoT Roaming
Tech Stack
Tools & technologiesDNSIoTPythonRealm
About the role
Key responsibilities & impact- 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/SGd authentication, SGd SMS, and NIDD where applicable
- Analyze signaling traces using Wireshark and resolve failures across Skylo, the IPX provider, and partner MNO
- Collaborate with Skylo IPX partners and MNO IPX teams to isolate routing and configuration issues at component level
- Establish change-control, peer-review, rollback, and documentation practices
- Create Low-Level Design documents for every interconnection
- Partner with Network Engineering, NOC, Security, Product, and external MNO technical teams through go-live and stabilization
- Turn MNO IR.21/RAEX profiles into production-ready Diameter connectivity and validated live traffic
- Own the operational technical path from interconnect design through DRA/DEA configuration, IP/DNS/ENUM readiness, IREG execution, troubleshooting, and operational handoff
Requirements
What you’ll need- 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
- Disciplined approach to change management, documentation, configuration integrity, and live production risk
- Preferred: NB-IoT NTN, NIDD, MME registration troubleshooting, SS7/MAP, STP, or IoT roaming experience
- Preferred: Hands-on experience with Signalling & IP configuration in Core network
- Preferred: Automation experience using Python, APIs, infrastructure as code, or network testing frameworks
Benefits
Comp & perks- Competitive compensation packages including a stock option based equity program
- Comprehensive benefits including medical, dental, vision, retirement plan
- Monthly allowances for wellness and education reimbursement
- A generous time off policy
- Holidays
- Opportunity to temporarily work abroad
- Flexible approach to work
- Equal opportunity and inclusive workplace