Software Engineer

Nex; San Jose (CA); Hybrid; USD 120,000 - 180,000; Full time

Job summary

Nex in San Jose, CA is seeking a Software Engineer to join a fast-moving game cell focused on gamifying fitness and developing healthy habits for the whole family. You’ll prototype, iterate, and refine concepts from idea to production, collaborating with designers and engineers.

You will work on mobile-focused gameplay, performance optimization, and live-ops features, with a product-minded approach to deliver engaging user experiences in a hybrid work setup (2–3 days in office).

Qualifications

• 3+ years of game development or interactive software engineering experience.
• Experience building user-facing products from scratch and shipping high-quality experiences.
• Strong programming skills with Unity (C#) or similar game engines.
• Experience optimising performance and artifact size for mobile (Android) platforms.
• A product-minded approach focusing on user experience, not just code.

Responsibilities

• Work closely with designers to scope out new experiences and features and implement end-to-end.
• Develop infrastructure, motion detection gameplay, UI, and live-ops features.
• Optimize and polish user experiences for smooth, production-quality gameplay.
• Evaluate and adopt new technologies to improve development speed and product quality.
• Work cross-functionally with designers, product teams, and engineers to deliver a seamless experience.

Skills

Game development

Unity (C#)

Performance optimisation

Mobile development

Product-minded

Tools

Unity

Job description

Overview

Location: San Jose, CA (Hybrid in office 2-3x a week)

Reports to: Head of Party Cell

Employment Type: Full-time

The Role

We\'re looking for a Software Engineer to help bring our product ideas to life within a fast-moving game cell focused on gamifying fitness and developing healthy habits for the whole family. You\'ll work closely with designers and engineers to prototype, iterate, and refine our products from concept to production.

What You’ll Do

• Work closely with designers to scope out new experiences and features and implement it end-to-end.
• Develop infrastructure, motion detection gameplay, UI, and support live-ops features
• Optimize and polish user experiences to ensure smooth, production-quality gameplay.
• Evaluate and adopt new technologies to improve development speed and product quality.
• Work cross-functionally with designers, product teams, and other engineers to deliver a seamless experience.

Qualifications

• 3+ years of game development or interactive software engineering experience.
• Experience building user-facing products from scratch and shipping high-quality experiences.
• Strong programming skills, preferably with Unity (C#) or similar game engines.
• Experience optimising performance and artifact size for mobile (Android) platforms.
• A product-minded approach—you think about the user experience, not just the code.
• Strong problem-solving skills and ability to work independently in a fast-paced environment.
• Bonus: Experience with fitness apps, or at-home fitness solutions.

If you\'re passionate about blending gaming and fitness to build experiences that make healthy habits fun, we’d love to hear from you!