Senior · Staff · Principal Fullstack Engineer Lead AlliesSenior · Staff · Principal Fullstack EngineerSan Francisco, CaliforniaDeveloping and maintaining both front-end and back-end components:This includes writing code in various programming languages, designing user interfaces, and creating server-side logic. Collaborating with cross-functional teams:Working with product managers, designers, and other engineers to define requirements, design features, and ship new products.
Senior · Staff · Principal Machine Learning Engineer Lead AlliesSenior · Staff · Principal Machine Learning EngineerSan Francisco, CaliforniaA bachelor's or master's degree in computer science, engineering, mathematics, statistics, or a related field is typically required. Instead of a perfect job description, we present talented individuals to companies and allow them to share how that talent fits in the organization.
Principal Engineer, Studio Builder Tools RobloxPrincipal Engineer, Studio Builder ToolsSan Mateo, CA$345,040–$399,420 / 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. The Builder Tools team is in charge of Roblox Studio’s content making features, from 3D draggers to world-class character animation tools, tooling for making terrain for huge worlds, in-game UI authoring tools, and many more.
Principal Engineer, Agentic AI Teradata CorpPrincipal Engineer, Agentic AISan Jose, CAThis is a Senior Individual Contributor role focused on building and deploying intelligent agents-not just integrating automation tools, but architecting AI-driven systems that reason, analyze, and act across telemetry, applications, and workflows. Experience building agentic systems for observability, automated remediation, or intelligent diagnostics (ideal background from AI-native or data observability companies such as Acceldata).
Staff - Principal, Software Engineer, SDK EriduStaff - Principal, Software Engineer, SDKSaratoga, CaliforniaDesign and implement key software interfaces to support dataplane operations like L2/L3 forwarding, ACLs, QOS, buffer management and telemetry. Own the SDK architecture for Eridu's custom switch ASICs, including HAL, abstraction layers, API models, and feature programming workflows.
Principal Software Engineer - Roblox Database RobloxPrincipal Software Engineer - Roblox DatabaseSan Mateo, CA$293,800–$343,340 / yearRoblox’s database team develops the next-generation, multi-tenant database platform that elastically scales and underpins every online data workload at Roblox. Every 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.
Principal Software Engineer - Creator Collaboration RobloxPrincipal Software Engineer - Creator CollaborationSan Mateo, CA$295,250–$345,040 / yearAs a Principal Engineer focused on Collaboration, you will be leading the architecture and design of workflows on Roblox Studio and our platform enabling creators and AI agents to collaborate at scale by creating, sharing, and managing content. Every 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.
Principal Software Engineer - Content Lifecycle RobloxPrincipal Software Engineer - Content LifecycleSan Mateo, CA$295,250–$345,040 / yearAs a Principal Engineer on Content Lifecycle, you will be leading the architecture and design of workflows on Roblox Studio and our platform enabling Creators and AI agents to collaborate at scale by creating, sharing, and managing reusable content. Every 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.
Principal Security Software Engineer, Application Security RobloxPrincipal Security Software Engineer, Application SecuritySan Mateo, CA$326,060–$385,050 / 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.
NewSenior Principal Application Engineer Celero CommunicationsSenior Principal Application EngineerSan Jose, California$175,000–$225,000 / yearAs a key member of the team, you will work closely with DSP, ASIC, hardware, firmware, and product engineering teams, while partnering directly with hyperscale customers and strategic partners to integrate, validate, debug, and optimize coherent DSP-based optical solutions. This position offers a unique opportunity to influence product direction, contribute to customer success, and help shape the future of high-speed optical connectivity for AI infrastructure and cloud networking.
Senior Principal Applications Engineer YO AI LabsSenior Principal Applications EngineerMilpitas, CAAcquire and analyze samples from prospective customers and provide sample analysis data reports to actively close sales opportunities. Sound understanding of the new product introduction process, including the definition of new product requirements, prototypes evaluation, and ability to diagnose and debug systems level issues.
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.
NewPrincipal Physical Verification Engineer Celero CommunicationsPrincipal Physical Verification EngineerSan Jose, California$150,000–$250,000 / yearAnnual Base Salary Range: $150,000 - $250,000 (The final offer will be determined based on job-related skills, experience, qualifications, and location) • Responsible for running and analyzing DRC/ERC/LUP/PERC results.
Senior / Principal Demo Engineer IntercomSenior / Principal Demo EngineerSan Francisco, CA$23,700–$27,800 / yearAs a founding Fin Demo Engineer, you'll own the platform and tooling that powers every Fin demo at Intercom - the environments, seeded data, integrations, reset infrastructure, and reusable building blocks our Solutions Engineers rely on every day. Founded in 2011, Fin became one of the fastest growing companies and remains one of the largest private software companies in the world with nearly 30,000 global businesses using our products to transform their customer support.
NewPrincipal PLL Design Engineer Celero CommunicationsPrincipal PLL Design EngineerSan Jose, CaliforniaWe are looking for a High-Speed CMOS PLL Analog Design Engineer –who is excited to join a fast-growing Start-Up Company with a key role for expert in clocking circuits for next generation optical transceivers, high-speed SerDes, and ADC/DAC systems. • Architect, design and simulate analog/mixed-signal PLL building blocks (VCOs, charge pumps, dividers, PFDs, Loop Filters) at transistor level using tools like Cadence Virtuoso and Spectre.
NewPrincipal High-Speed Analog Circuit Design Engineer Celero CommunicationsPrincipal High-Speed Analog Circuit Design EngineerSan Jose, California$200,000–$300,000 / yearWe are looking for an Analog Design Engineer – someone who is excited to join a fast-growing Start-Up Company growing a group of diverse individuals responsible for handling high-speed mixed-signal circuit designs! Annual Base Salary Range : $200,000 - $300,000 (The final offer will be determined based on job-related skills, experience, qualifications, and location.).
NewPrincipal SerDes Design Engineer Celero CommunicationsPrincipal SerDes Design EngineerSan Jose, California$200,000–$300,000 / yearOverview development of system-level modelling, with behavioral models (e.g., MATLAB, SystemVerilog, Verilog-A) to analyze link budgets, equalization strategies and jitter budgeting. We are looking for a SerDes Lead Designer, who is seeking an amazing opportunity delivering disruptive High Speed Interconnect Technology to power next generation AI.
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 RFIC Design Engineer Oso Semiconductor Inc.Principal RFIC Design EngineerMountain View, CAYou'll design, simulate, and validate mmWave front-end circuit blocks for our next-generation beamformer chips—including LNAs, PAs, phase shifters, VGAs, and complete transceiver signal chains. Design mmWave front-end circuit blocks (PAs, LNAs, phase shifters, VGAs, mixers) in advanced CMOS or RFSOI (SiGe and III-V processes are a plus).
Principal Systems Software Engineer CrusoePrincipal Systems Software EngineerSan Francisco, CaliforniaWe're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved — people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services. Mastering the I/O Path: Lead the architectural design of our internal cloud fabric, drawing on experience from top-tier hyperscalers to drive the technical roadmap for SR-IOV, RDMA, and virtualized GPU scheduling.