Senior IREG & Network Test Engineer - NTN Automation

Skylo; Mountain View (CA); On-site; USD 135,000 - 165,000; Full time

Benefits offered by this job

Stock options

Health insurance

Retirement plan

Paid time off

Education reimbursement

Job summary

Skylo is seeking a Senior IREG & Network Test Engineer to own the onboarding gate for mobile network operators, replacing manual execution with automated regression and a scalable testing environment.

You will define test strategies, run roaming validation across network registration, attach sequences, S6a/S6d authentication, SGd SMS-over-NAS, and IP/NIDD data paths, and collaborate with cross‑functional teams to ensure reliable onboarding.

Qualifications

• 5+ years of hands‑on experience in roaming validation, mobile core operations, interconnect routing, IREG testing, or telecommunications network testing.

Responsibilities

• Develop Test Strategy: Define the comprehensive IREG test strategy, pass/fail metrics, network tracing protocols, and official sign‑off processes for each partner MNO.

Skills

Roaming validation

Mobile core operations

Interconnect routing

IREG testing

Telecommunications testing

Python automation

IR.21/RAEX data profiles

Diameter/SS7 knowledge

Wireshark analysis

CI/CD integration

Tools

Jira

Confluence

Job description

Skylo is seeking a Senior IREG & Network Test Engineer to own the onboarding gate for mobile network operators, replacing manual execution with automated regression and a scalable testing environment.

You will define test strategies, run roaming validation across network registration, attach sequences, S6a/S6d authentication, SGd SMS-over-NAS, and IP/NIDD data paths, and collaborate with cross‑functional teams to ensure reliable onboarding.