Senior Software Engineer - Map Viewer

ABOUT onX We’re a team of builders, adventurers, and risk takers using technology to help people confidently explore the outdoors. Driven by our mission to awaken the adventurer inside everyone, we build products that optimize every outdoor experience and inspire confidence to get out and go further. We’re a high-growth tech company. The pace is fast, the work takes grit, and ambiguity is part of the job. As the world changes around us, we adapt - continuously evolving how we build, prioritize, and deliver. Our business moves quickly, and there’s real opportunity to shape what we build next. Each of our verticals - Hunt, Offroad, Backcountry, and Fish - is at a different stage of maturity, which means the challenges you encounter and the impact you have will vary depending on where you sit and what the business needs most. We operate with an experimentation mindset, continually iterating and improving how we solve problems. We expect our people to use the latest tooling, including AI, thoughtfully and responsibly, pairing human judgment with technology to increase quality, speed, and impact. Our impact comes to life through the products we build, in the stories of our customers, and in our growing commitment to land stewardship and recreational access. ABOUT THIS OPPORTUNITY onX is seeking a Senior Software Engineer who will contribute to meaningful, real-world outcomes that have a lasting impact for customers and the business. In this role, you’ll focus on onX’s Core Viewer cross-platform map rendering engine as part of the Map Viewer team, supporting map rendering for all onX verticals. You’ll take ownership of your work, collaborate closely with partners across the organization, and help move initiatives forward in an environment where priorities evolve, learning is celebrated, and you’re encouraged to keep stretching your skills. This role will report to the team's Engineering Manager. WHAT YOU'LL DO Essential Job Duties Functions You will write C++, Swift and Kotlin, leveraging OpenGL and Metal You help develop a 3D map viewing SDK for mobile and web. Build reliability and performance tracking tools to monitor the map engine in production Serve as a map API subject matter expert for vertical application developers Optimize the rendering, culling, and spatial positioning algorithms that drive the map’s visual presentation Set up dependency/artifact / build pipeline to create consumable dependencies for iOS, Android and web (CocoaPods, Android Libraries). Integrate automated testing and performance measurement into the Core Viewer CI pipeline for all platforms Look for opportunities to embed AI as a repeatable co-pilot in daily workflows by integrating experimentation into real work, and continuously refining its use with sound judgment and validation. WHAT YOU’LL BRING Minimum of five (5) years of experience shipping and maintaining production code At least one (1) year of experience was focused on 3D map rendering (WebGL, OpenGL, Vulcan, Metal and/or DirectX) and at least (3) years of experience with mobile development. Fundamentals of graphics programming, including the Graphics Pipeline Experience with culling, clipping, and spatial partitioning algorithms. Quad- or oct-trees is a plus Concurrency and multithreading for network requests and computation Experience with protocol buffers Experience with working with analytics data, BigQuery or a similar big data query language Knowledge of scene graphs A strong computer science foundation Brings a humble approach and communicates with clarity across written and verbal formats A strong curiosity for exploring new technologies, including AI A shared passion for and ability to demonstrate onX’s Company Values. Permanent US work authorization is a condition of employment with onX. ADDED BONUSES Though not required, we would be thrilled to consider candidates with any of the following: Deep understanding of data structures to support spatial qu ... (truncated, view full listing at source)