Software Engineer, Core Technology

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.

Location: Hong Kong or Remote
Type: Full Time

The Role

As a Software Engineer at Nex you will contribute to building the technical foundations that power our platforms most demanding capabilities. You will focus on either ML Engineering or Framework Engineering two complementary specializations that drive research velocity and product performance.

In the ML Engineering track you will build the infrastructure that accelerates machine learning research: training pipelines data workflows model integration systems and the tools that enable rapid experimentation. Your work ensures researchers can iterate reliably and move experiments toward production readiness.

In the Framework Engineering track you will own the design and development of our cross-platform software framework for detection sensing haptics and ML inference. You will build the real-time systems hardware abstraction layers and developer APIs that enable multimodal interaction on Nex Playground.

Either path offers the opportunity to work on deeply technical problems in machine learning systems data infrastructure sensing technologies and real-time inference. You will be part of a small highly technical team that values both specialization and collaboration with clear ownership of core technology areas.

The Mindset

You are drawn to solving complex technical challenges at the intersection of research and production engineering. You care deeply about building systems that are reliable performant and maintainable. You thrive in environments where technical depth matters where your expertise in ML systems distributed computing or real-time software directly shapes what the platform can do.

What Youll Do

ML Engineering Track

• Design and build training pipelines data workflows and model integration systems
• Develop infrastructure that accelerates research iteration and reduces turnaround time
• Build systems for data collection curation and preprocessing at scale
• Create tools and automation that move experiments toward production readiness
• Optimize data pipelines for reliability performance and observability
• Collaborate with ML researchers to understand their needs and remove technical blockers
• Work on model serving infrastructure and integration with the production framework

Framework Engineering Track

• Design and develop a robust performant cross-platform framework for sensing detection haptics and ML inference
• Build efficient runtime execution systems and hardware abstraction layers
• Develop developer APIs that make complex sensing and inference accessible
• Optimize for real-time performance on multimodal data streams
• Work on camera microphone and haptics integration
• Implement code that runs reliably across different platforms and hardware configurations
• Improve framework stability performance and developer experience

Both Tracks

• Write clean well-tested code that maintains high engineering standards
• Participate in code reviews and help raise the engineering bar across the team
• Contribute to shared tools infrastructure and cross-role projects (20% Time)
• Work with the dual-leadership model (Engineering Manager and Tech Lead) to understand priorities and technical direction
• Document systems and decisions to support team knowledge sharing

Must Have

ML Engineering Track

• 3 years of professional software engineering experience in building production ML systems training infrastructure or research platforms
• Proficiency inPython additional experience with at least one other systems language (C C# Java Rust or Go)
• Hands-on experience withPyTorch or TensorFlowin production or research environments
• Experience building or maintainingML training pipelinesor data workflows
• Familiarity withmodel deployment inference optimization or MLOps practices

Framework Engineering Track

• 3 years of professional software engineering experience in building real-time software frameworks cross-platform systems or performance-critical applications
• Proficiency inC/C# additional experience with at least one other systems language (C C# Java Rust or Go)
• Experience withcross-platform development
• Proven track record withperformance optimization real-time systems or hardware abstraction layers
• Experience buildingdeveloper APIsor software frameworks used by other engineers

Nice To Have

For ML Engineering Track

• Experience with distributed training systems or GPU-accelerated computing
• Knowledge of data versioning experiment tracking or ML metadata management
• Familiarity with containerization (Docker) and orchestration tools
• Contributions to open-source ML projects or research publications

For Framework Engineering Track

• Experience building real-time systems or low-latency software
• Familiarity with computer vision signal processing or embedded systems
• Experience with cross-platform development or hardware abstraction
• Knowledge of performance optimization and profiling
• Experience with sensing technologies (cameras microphones or similar)
• Familiarity with CI/CD pipelines and automated testing

For Either Track

• Experience working in small high-performance technical teams
• Background in startups high-growth environments or consumer product companies
• Passion for pushing technical boundaries and deep problem-solving

We Offer

• 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.