NewPrincipal Product Engineer Celero CommunicationsPrincipal Product EngineerSan Jose, California$150,000–$250,000 / yearYou will define and execute the productization strategy across New Product Introduction (NPI), reliability, test, quality, and manufacturing ramp for advanced coherent DSP ICs delivered as Known Good Die (KGD) and packaged products. We are seeking a hands‑on, technically deep Principal Product Engineer to drive the transition of Celero’s products from development into qualified, high‑yield, high‑volume manufacturing.
Principal Software Engineer, Engine Systems RobloxPrincipal Software Engineer, Engine SystemsSan Mateo, CA$295,250–$345,040 / yearEvery day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.
Principal Software Engineer - Compute (Kubernetes) RobloxPrincipal Software Engineer - Compute (Kubernetes)San Mateo, CA$345,040–$399,420 / yearDeep-Dive Engineering: Leverage deep expertise in Kubernetes internals, including custom controllers, operators, API server architecture, and etcd, to solve complex scaling bottlenecks and optimize our control plane. Architectural Leadership: Serve as a technical lead for our Kubernetes ecosystem, setting the long-term architectural strategy for a platform that manages thousands of nodes and supports millions of concurrent requests.
Principal Engineering Technician, Tech Operations Form EnergyPrincipal Engineering Technician, Tech OperationsBerkeley, CAArchitect and build complex, high-reliability harnesses for test assets and prototype product builds; perform precision PCBA rework and micro-soldering for prototype hardware. In recent years, Form Energy has earned a number of accolades, including being named by TIME as a "Best Invention", MIT Technology Review as a "Top Climate Tech Company To Watch", and Fast Company as "One of the Next Big Things In Tech".
Principal, Electrical Engineer 42 DotPrincipal, Electrical EngineerSunnyvale, CA$233,700–$336,300 / yearEnd-to-End Execution: Demonstrated success in "greenfield" product development-taking an idea from a blank sheet to a fully operational, high-volume hardware platform. Validation Strategy: Partner with the Lab and Test teams to define ATE and HIL testing requirements that validate hardware stability across the full product lifecycle.
Principal Engineer, Mapping And Localization PlusAI Inc.Principal Engineer, Mapping And LocalizationSanta Clara, CA$200,000–$260,000 / yearDesign and implement robust, real-time algorithms for sensor fusion, visual/LiDAR odometry, and global localization using techniques like Factor Graphs, EKF/UKF, and particle filters. You will tackle the hardest edge cases-from GPS-denied tunnels to dynamic construction zones-ensuring our vehicles operate safely in complex L4 ODDs (Operational Design Domains).