Carrier Certification Engineer

Carrier Certification Engineer

Location:

Bothell, WA (Onsite role)

Dice is the leading career destination for tech experts at every stage of their careers. Our client, Laiba Technologies LLC, is seeking the following.

• Conduct tests to ensure device and service configurations adhere to GSMA TS.43 guidelines.
• Perform in-depth testing of HTTP/HTTPS traffic, including header validation, status code verification, API endpoint testing, and performance analysis.
• Test and verify SSL/TLS certificate implementations, ensuring chain of trust, expiration, revocation status (OCSP/CRL), and cipher suite compatibility.
• Analyze and test JWT-based authentication mechanisms (token generation, validation, signature verification, expiry, and common vulnerabilities).
• Collect, review, and analyze network traces, server logs, and application logs to diagnose issues and identify root causes.
• Handle partner issues: track bugs, minimize duplicates, secure all necessary information, communicate across functions, and facilitate debugging to meet service level objectives.
• Manage pre‑launch QA by partners: provide instructions, live or online support during testing, and verify issues locally.

• 8–12 years minimum in computer/software technology.
• 4 years minimum working with enterprise customers in professional services, tech support, and/or product management.
• Experience with telecommunication industry and networking infrastructure is a plus.
• Experience with mobile technology solutions/applications is a plus.

• Good knowledge of SIP, MSRP protocol.
• Good knowledge of IMS/RCS Architecture.
• Strong debugging skills at protocol level (SIP, MSRP, TCP).
• Android application debugging, capturing bug reports, logcat & adb commands.
• Bug reporting on bug tracking tools and understanding of bug life cycle.
• Excellent verbal and written communication skills.