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KTek Resourcing · 10 hours ago

Senior Internet Protocol Engineer

Bothell, WA

Contract

Onsite

Senior Level

7+ years exp

KTek Resourcing is seeking a Senior Internet Protocol Engineer to work with HCL America. The role involves conducting tests on SIP and MSRP protocols, ensuring adherence to guidelines, and performing extensive debugging and analysis of network and application logs.

Health CareHuman ResourcesMedicalStaffing Agency

No H1B

Hiring Manager

Ahmad Raza

Responsibilities

Conduct tests to ensure device and service configurations adhere to GSMA TS.43 guidelines, particularly for secure service enablement

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, including chain of trust, expiration, revocation status (OCSP/CRL), and cipher suite compatibility

Should have good knowledge of SIP, MSRP protocol

Should have good knowledge of IMS/RCS Architecture

Should have good debugging skills on protocol level like SIP, MSRP, TCP

Experience in Android application debugging and should know how to capture Bug reports, logcat & adb commands

Experience in bug reporting on any bug tracking tools & should have a good understanding of the bug life cycle and its stages

JWT Security Analysis: Analyze and test JWT-based authentication and authorization mechanisms, including token generation, validation, signature verification, expiry, and common vulnerabilities (e.g., insecure algorithms, information disclosure)

Collect, review, and analyze network traces (e.g., Wireshark), server logs, and application logs to diagnose issues and identify root causes

Track the bugs with priority for premium partners, triage them, minimize duplicates and secure all the information necessary for Eng to address them. Communicate across functions and teams to facilitate the debugging process and meet the service level objectives. Host regular meetings with partner QA teams to share the status update as needed

Enable partners to run QA testing pre-launch with instructions from internal stakeholders such as Product and Eng. Provide live or online support during the test. Verify issues locally on test devices to align with the partner QA team on the findings

Qualification

SIP protocolMSRP protocolHTTP/HTTPS testingSSL/TLS validationIMS/RCS ArchitectureAndroid debuggingBug reportingLog analysisGeneric partner supportCommunication skills

Required

Min 7–8 years of experience in SIP, MSRP protocol

Carrier certification

Conduct tests to ensure device and service configurations adhere to GSMA TS.43 guidelines, particularly for secure service enablement

HTTP/HTTPS Protocol Testing: Perform in-depth testing of HTTP/HTTPS traffic, including header validation, status code verification, API endpoint testing, and performance analysis

SSL/TLS Certificate Validation: Test and verify SSL/TLS certificate implementations, including chain of trust, expiration, revocation status (OCSP/CRL), and cipher suite compatibility

Should have good knowledge of SIP, MSRP protocol

Should have good knowledge of IMS/RCS Architecture

Should have good debugging skills on protocol level like SIP, MSRP, TCP

Experience in Android application debugging and should know how to capture Bug reports, logcat & adb commands

Experience in bug reporting on any bug tracking tools & should have a good understanding of the bug life cycle and its stages

Excellent verbal & written communication skills

Log Analysis & Troubleshooting: Collect, review, and analyze network traces (e.g., Wireshark), server logs, and application logs to diagnose issues and identify root causes

Generic partner support

Issue Handling: Track the bugs with priority for premium partners, triage them, minimize duplicates and secure all the information necessary for Eng to address them. Communicate across functions and teams to facilitate the debugging process and meet the service level objectives. Host regular meetings with partner QA teams to share the status update as needed

Pre-launch QA by partners: Enable partners to run QA testing pre-launch with instructions from internal stakeholders such as Product and Eng. Provide live or online support during the test. Verify issues locally on test devices to align with the partner QA team on the findings