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Scion Staffing · 2 weeks ago

Test Engineer, Android, iOS, Web

Del Mar, CA

Full-time

Onsite

Entry, Mid Level

$150/hr - $200/hr

2+ years exp

Scion Technology is engaged in a search for a Test Engineer for a client focused on secure real-time communication solutions. The role involves designing, automating, and executing large-scale test strategies across mobile and web applications, ensuring the reliability and security of their software platforms.

RecruitingStaffing AgencyVisual Search

Growth Opportunities

Responsibilities

Create, maintain, and execute test plans for Android, iOS, and Web applications using custom WebRTC E2EE

Build, configure, and operate an in-house device lab (tens to hundreds of devices), including automated provisioning and labeling

Implement remote orchestration and control systems for device management

Develop and integrate automated test suites for functional, regression, performance, network, and security testing

Simulate adverse and real-world network conditions using tc/netem and commercial network impairment tools (PacketStorm, Spirent, Keysight)

Define and track KPIs for real-time media quality, latency, and encryption reliability

Execute large-scale multi-party call tests and design fault-injection and failure-recovery scenarios

Collaborate closely with development teams to isolate issues, report bugs, and ensure fast resolution

Maintain device coverage across multiple platforms and produce detailed test reports and release readiness recommendations

Qualification

WebRTC E2EEMobile automation toolsDevice lab managementPython/JavaScript scriptingCI/CD systemsPacket analysisTest planningBug reportingHardware-level tasksDocumentation skills

Required

Bachelor's degree in Computer Science, Electrical/Computer Engineering, or equivalent practical experience

2+ years of hands-on testing experience with Android, iOS, and Web applications

Mobile automation experience with tools such as Appium, Espresso, XCTest/XCUITest, Detox, or Playwright

Strong proficiency in Android Studio, Xcode, and browser devtools

Python/JavaScript scripting experience with solid Bash and Linux command-line proficiency

Excellent documentation, test planning, and bug reporting skills

Familiarity with packet analysis (Wireshark) and network simulation tools

Experience with CI/CD systems (Jenkins, GitHub Actions, GitLab CI) and maintaining test artifacts such as logs, pcaps, screenshots, and videos

Experience building or maintaining device labs, automating provisioning and control

Understanding of audio/video quality metrics and E2EE concepts, including key lifecycle, security boundaries, and resilience to downgrade or replay attacks

Ability to handle hardware-level tasks such as cabling, bench setup, power cycling, and camera/microphone peripheral management