Software Engineer in Test, Core Technology (12-month contract)

Nex is on a mission to help families rediscover the joy of movement. Created by parents for parents Nex combines technology and play to deliver fun social and interactive experiences powered by natural body motion encouraging kids and adults to move more play more and have fun together. Nex Playground the companys award-winning active play system is purpose-built to get families moving year-round with safety and privacy as core considerations in its intentional design. It is certified kidSAFE COPPA compliant and built to support healthy active play for all ages and abilities.

Nex Playground features a growing library of 50 experiences including motion and dance games fitness and educational experiences and Nex Originals. Content includes collaborations with partners like Hasbro Sesame Workshop and NBCUniversal. Nex has been recognized by Fast Companys Most Innovative Companies TIMEs Best Inventions and Parents Best Entertainment System for Families and has earned Red Dot IDEA and Core77 international design awards. We encourage you to explore Have FunandIs Motion Gaming Back as they offer a deeper look into our culture values and explain how our approach to motion gaming differs from previous generations.

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Location: Hong Kong
Type: 12-month contract (with possibility of conversion to full-time permanent role)

As a Software Engineer in Test at Nex you will own stability and reliability testing for the Motion Development Kit (MDK) firmware and hardware modules that power Nex Playgrounds AOSP-based motion-sensing device. You will build automated test frameworks stress/soak testing infrastructure and validation tools that catch instability regressions and hardware-integration failures before they reach production. You will work closely with the Framework Engineering and firmware/hardware teams to embed testability across the full Android stack from low-level sensor drivers and HAL layers up through the MDK APIs that game developers build on .

This role sits within a small highly technical team that values both specialization and collaboration with clear ownership of quality across core technology areas .

You are drawn to solving hard reliability problems in systems where hardware firmware and Android software all have to work together flawlessly day after day. You care deeply about long-run stability not just passing a test once but proving a system holds up under sustained load edge cases and real-world conditions. You thrive in environments where deep systems debugging Android/AOSP internals knowledge and rigorous testing discipline directly shape what the platform can confidently ship .

• Design and build automated stability and reliability test frameworks for the Motion Development Kit (MDK) firmware and hardware modules on an AOSP-based platform
• Develop soak testing stress testing and endurance testing pipelines to surface memory leaks crashes thermal issues ANRs and long-running failures
• Build test harnesses and hardware-in-the-loop (HIL) rigs to validate sensor camera and motion-tracking hardware under real and simulated conditions
• Create regression suites for firmware HAL and MDK releases integrated into CI/CD to catch stability issues pre-release
• Investigate reproduce and drive root-cause analysis of field failures crashes kernel panics and intermittent hardware/firmware defects using Android bug reports logcat and kernel logs
• Define and track reliability metrics such as MTBF crash rates ANR rates and failure recurrence across hardware revisions and firmware/AOSP builds
• Partner with firmware hardware and platform engineers to define quality gates and exit criteria for new hardware/firmware/AOSP releases
• Write clean well-tested test code and tooling that raises the engineering bar across the team
• Build dashboards and reporting for test coverage defect trends and release stability
• Participate in code reviews and contribute to shared tools infrastructure and cross-role projects (20% Time)
• Work with the dual-leadership model (Engineering Manager and Tech Lead) to align on quality priorities and technical direction
• Document test strategies systems and findings to support team knowledge sharing

• 3 years of professional experience in software test engineering reliability engineering or QA for embedded/firmware Android or hardware-integrated systems
• Proficiency in Python with experience in at least one systems language (C C# Java Rust or Go)
• Hands-on experience with stability stress soak or endurance testing methodologies
• Experience testing Android/AOSP platforms HAL embedded firmware device drivers or hardware modules (sensors motion tracking cameras or similar)
• Strong debugging skills across hardware firmware and software layers including logcat kernel logs bug reports logic analyzers or serial/hardware diagnostics
• Experience building or maintaining CI/CD pipelines and automated regression suites

• Experience with AOSP build systems (Soong/Make) Android Test Harness or Vendor Test Suite (VTS)/Compatibility Test Suite (CTS)
• Experience with hardware-in-the-loop (HIL) test rig design and automation
• Familiarity with embedded Linux Android kernel internals and Treble/HAL architecture
• Knowledge of communication protocols (I2C SPI UART BLE) used in sensor and firmware integration
• Experience with reliability metrics and frameworks (MTBF FMEA fault injection testing)
• Familiarity with motion sensing IMUs computer vision or signal processing validation
• Experience working in small high-performance technical teams
• Background in consumer electronics robotics or Android-based hardware products
• Passion for pushing reliability standards and deep root-cause problem-solving

• Competitive compensation package.
• Flexible working hours and vacation policy.
• Product-driven culture that treasures talents and individual growth.
• Front-row seat and hands-on experience with cutting edge technologies in the evolving gaming field

Nex is located inSan Jose California USAandHongKong. Learn more about us at encourage applications even if you dont meet more than 50% of the requirements we believe that experience comes in many forms!

Nex is an equal opportunity employer and does not discriminate on the basis of race color religion sex (including pregnancy childbirth gender identity and sexual orientation) national origin ancestry age physical or mental disability medical condition genetic information marital status military or veteran status or any other characteristic protected by applicable law. This policy applies to all individuals at every stage of the employment relationship including all current and prospective employees and covers all employment decisions including recruitment hiring job assignment promotion compensation benefits training discipline and termination.

We are committed to providing a workplace free from discrimination and harassment and to fostering an inclusive environment for all employees.