Senior Solutions Engineer – Signaling & Routing

This is a fully remote position, open to applicants in United States.

📋 Description

• Design and set up signaling, DRA/DEA routing, peers, connections, realms, Diameter identities, GT mappings, and point-code mappings.

• Convert MNO IR.21/RAEX profiles into precise, version-controlled operational configurations.

• Strategize interconnect IP addressing and manage DNS/ENUM, APN, realm resolution, firewall/ACL, and IPX peering modifications.

• Take responsibility for comprehensive IREG testing for network registration, attach sequences, S6a/S6d authentication, SGd SMS, and NIDD when applicable.

• Evaluate Wireshark signaling traces and troubleshoot failures across Skylo, IPX providers, and partner MNOs.

• Work in partnership with Skylo IPX partners and MNO IPX teams to identify routing and configuration problems.

• Develop change-control, peer-review, rollback, and documentation procedures.

• Produce Low-Level Design documents for each interconnection.

• Collaborate with Network Engineering, NOC, Security, Product, and external MNO technical teams during go-live and stabilization.

⛳️ Requirements

• 8+ years of practical experience in mobile-core signaling, roaming interconnect, telecom solutions engineering, or network operations.

• Extensive technical expertise in Diameter, including DRA/DEA configuration, realm routing, peer management, and S6a/S6d/SGd protocols.

• Strong fundamentals in IP interconnect, encompassing DNS/ENUM, routing, security controls, and firewall/ACL coordination over IPX/GRX networks.

• Advanced skills in protocol analysis, including the ability to independently diagnose signaling failures from Wireshark traces.

• Experience in converting IR.21/RAEX data into operational configurations and executing structured IREG validation.

• Methodical approach to change management, documentation, configuration integrity, and minimizing risks in live production environments.

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

• Hands-on experience with Oracle DSR, Mavenir, Nokia, or similar carrier-grade signaling platforms.

• Experience in automation using Python, APIs, infrastructure as code, or network testing frameworks.

• Eligibility to work legally in the U.S.; candidates will be asked if they require employment visa sponsorship.

🏝️ Benefits

• Competitive compensation packages, including a stock option-based equity program.

• Comprehensive benefits covering medical, dental, vision, and retirement plans.

• Monthly allowances for wellness and education reimbursement.

• Generous time-off policy and holidays.

• Opportunity to work temporarily abroad.

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

• Open, transparent, and inclusive culture.

• Health insurance.

• Retirement plans.

• Paid time off.

• Equity options.