Staff Principal Product Engineer Jobs

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as Twilio’s next Software Architect, (L6). About the job This position is needed to define and drive architectural vision, strategy, and alignment across multiple products and domains at company scale. As a senior-most technical leader, you’ll set long-term technical vision, establish architectural guardrails, and ensure coherence across distributed systems and platforms. You will drive cross-organizational initiatives, solve complex and ambiguous technical challenges, and elevate the technical standard for Twilio company-wide. Responsibilities In this role, you'll: Set and communicate long-term architectural vision, aligning teams and leadership across Twilio. Lead cross-product architecture reviews, standardize engineering practices, and drive foundational technical investments. Solve the most complex, ambiguous technical challenges at platform and company-wide scale. Mentor and guide principal and staff engineers, fostering a culture

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. Our team develops the innovations that power AI, mobile, and computing platforms around the world. Our DRAM Engineering team brings together experts across design, verification, manufacturing, and product development to solve complex technical challenges and deliver advanced memory solutions. We are passionate about innovation, collaboration, and building technology that enables the next generation of computing. As a Semiconductor Design Engineer, you will help develop advanced DRAM and emerging memory products from concept through silicon validation. This role offers opportunities to contribute across circuit design, simulation, verification, and optimization while working closely with global engineering teams. Depending on experience, you may also lead technical projects, mentor engineers, and influence future memory design strategies. Responsibilities: Design, simulate, and optimize digital, analog, and mixed-signal circuits for DRAM and emerging memory products. Translate product requirements into circuit solutions and validate performance across operating conditions. Perform circuit verification, silicon correlation, debug, and tape-out support activities. Collaborate with design, verification, layout, CAD, product, and process teams to improve product quality and manufacturability. Contribute to design automation, AI-assisted workflows, technical reviews, and engineering protocols. Minimum Qualifications: <

Replit is the agentic software creation platform that enables anyone to build applications using natural language. With millions of users worldwide, Replit is democratizing software development by removing traditional barriers to application creation. About the Team Product Platform builds and owns the shared foundations the rest of Replit is built on, spanning the full stack so every other team can ship features safely and quickly. Identity & Authorization defines how people, agents, sandboxes, and services prove who they are and what they can do. These systems protect critical product and service interactions across Replit's web product, Agent, enterprise controls, and internal services. Our work is high-leverage and horizontal: when identity and policy are clear, reliable, and easy to adopt, every other team can move faster without rebuilding security controls. We are a small, collaborative team that values curiosity and clear thinking over pedigree, and we work in the open by bringing each other the problem rather than just the request. We care more about how you reason and build than the route you took to get here. About the Role As a Software Engineer , you will design, build, and operate the identity and authorization systems that protect critical interactions on Replit, including Agent acting on behalf of a user or holding their own identity. The work is guided by a few simple questions: Can every protected request prove which workload made it, which principal it represents, and who is acting on that principal's behalf? Can product teams express policy once and trust the same decision across web, mobile, Agent, and internal services? Can enterprise administrators control who can access each workspace, app, connector, and Agent capability without navigating a permission maze as well as having a legible ledger of decisions? Can Agent act for a user across long-running and durable work without receiving broad or long-lived credentials? Are identity and auth

Our vision is to transform how the world uses information to enrich life for all. Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. NAND Device Engineer / Senior / Staff / Principal At Micron Technology, we are transforming how the world uses information to enrich life. As a NAND Device Engineer in the Device Technology Development team, you will play a critical role in shaping next-generation NAND technologies by bridging device physics, array operation, and product requirements . This role offers a unique opportunity to work at the intersection of fundamental device behavior and real-system impact , contributing directly to cutting-edge memory products deployed globally. What You Will Do: Device Understanding & Innovation Develop deep insight into NAND cell physics, variability, and reliability mechanisms across technology nodes and architectures. Analyze electrical characterization data from cell arrays and test structures to identify key limitations and improvement opportunities. Translate device-level understanding into actionable directions for cell design, process optimization, and array operation . Array-Level Optimization & Co-Design Drive device–array co-optimization , including threshold voltage (Vt) placement, distribution control,

Systems Technology Inc. (STI) is a private, employee-owned company (ESOP) that provides engineering consulting and product development with a focus on safety. We are a small company that enjoys many of the perks of start-ups, but we have been in business for over sixty years and have an aggressive growth plan. Being part of STI means being a key contributor in the company while working with a team that spans the range of experience from recent graduates to 20+ year tenure. At STI, we look for business partners who want to be part of something special and contribute to a culture built on transparency, friendliness, innovation, ownership and accountability. If you are of a like mind and enthusiastic about solving challenging, real world, relevant problems, we would love to hear from you. As a 100% employee-owned company, STI understands that employees' individual and collective hard work and dedication will lead directly to the success of the company in the long term. An Employee Stock Ownership Plan (ESOP) gives employees an ownership interest in the company that employs them. What You’ll Do: The Principal Research Engineer executes a variety of highly specialized/technical, business development and leadership activities. This individual provides advanced expertise in the areas of modeling, simulation and/or flight control. This person submits government proposals and is involved in commercial client outreach via networking at conferences and meetings. In addition, this person is responsible for leading commercial consulting contracts. The Principal Research Engineer also manages multiple contracts that involve tracking budgets, ensuring successful deliverables, and managing junior engineers. This person actively engages in company process development and participates in BD related activities. This individual may supervise, and mentor select staff engineers. Will report to the Director of Engineering Services. Supports determining top level technical direction

Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. Your mission is to lead the architectural design, technical execution, and implementation of AI agents and infrastructure for Toast's Team area within our FinTech line of business. The Team area is a mission-critical space on which our restaurants rely to manage their staff and optimize their labor. As a Principal Engineer, you will serve as a key technical leader in the group, driving modern architectural patterns—including spec-driven development and agentic workflows—to deliver high-impact software. A Day in the Life (Responsibilities) Define and execute the technical architecture for AI agents within the Team domain, ensuring systems are scalable, reliable, and secure. Partner closely with Engineering Managers and Product Managers to translate product roadmaps into robust technical designs and deliverables. Maintain a strong hands-on presence, writing code, prototyping new patterns, and resolving complex technical bottlenecks under load. Collaborate with Principal and Senior Principal Engineers across Toast to align on best practices, agent patterns, and spec-driven development paradigms. Guide, mentor, and elevate engineers within the Team area, fostering a culture of technical excellence and continuous learning. What You'll Need to Thrive (Requirements) 10+ years of experience designing, building, and operating highly scalable, mission-critical distributed systems and SaaS products (ideally AWS-hosted). Proven track record of leading complex technical initiatives and delivering robust software architecture from design to production. Strong enthusiasm for agentic development practices, LLM integration, and modern software paradigms. Balanced expertise: Ability to design high-level technical solutions on a whiteboard while remaining deeply connected to code-level execution and s

At ClickUp, we're building the future of work: the first truly converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI. We are an AI-native company. Every team member is expected to leverage AI daily, and we evaluate AI fluency as part of our hiring process. Join us and help redefine what's possible. 🚀 Role Overview We’re seeking a Principal Frontend Engineer to drive the long-term technical vision for frontend engineering at ClickUp. In this role, you will lead architectural strategy across major product surfaces, solve company-wide frontend challenges, and influence how teams build and ship at scale. You will partner deeply with engineering, product, design, backend, and integrations leadership to ensure ClickUp’s frontend systems remain fast, reliable, and adaptable as the business grows. This is a hands-on technical leadership role for someone who can operate at both strategic and implementation levels, especially in a high-growth, fast-paced environment. What You’ll Do Define and drive frontend architecture strategy across product areas and platform investments Lead the design of scalable, performant systems in Angular and React that support rapid product development Solve complex cross-team technical challenges related to performance, state management, scalability, and developer productivity Partner with backend and integrations teams to shape end-to-end architecture for major features and systems Raise the bar for quality, testing, maintainability, and engineering rigor across the frontend organization Provide technical leadership on the highest-impact initiatives and unblock teams working through ambiguous or difficult problems Guide teams toward pragmatic decisions that support both speed and long-term product quality Mentor senior and staff engineers, and help shape frontend engineering culture and standards Influence roadmap and organizational decisions through strong technical judgment an

Location(s): US (remote), Boston (hybrid), or New York (hybrid) - EST preferred Bready* to make a change? Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. The Retail organization at Toast is focused on building foundational technology to support a rapidly expanding vertical. We emphasize early learnings and remain closely aligned with our customers, engaging in frequent conversations with our initial retail partners to understand their needs, pain points, and feature requests. This direct feedback loop allows us to rapidly iterate and ensures we are building the right product for the market. As one of the fastest-growing verticals at Toast, we offer an opportunity to have a significant impact on the company's future growth. We’re looking for engineers to help make our product work for our largest customers. Think large grocery stores and your favorite local convenience store chain. With their larger scale bring additional needs for integrations and back-office tools, beyond what the platform offers today. This team works closely with customers — expect to visit stores and talk directly with operators to deeply understand their workflows. About this roll* (Responsibilities) Design, build, deploy, and maintain highly resilient and scalable systems that are critical to our customers’ success Define and drive long-term technical architecture and strategy across the entire organization, aligning executive business goals with platform capabilities. Design solutions that anticipate and accommodate future needs while considering tradeoffs Effectively communicate technical direction Sponsor and mentor senior engineering talent (Staff and Senior Staff engineers) to grow the next generation of technical leaders across Toast. Act as a force multiplier in improving engineering productivity Diagnose performance bottlene

RDQ327R177 While candidates in the listed location(s) are encouraged for this role, candidates in other US locations will be considered. The Security Field Engineering team helps data teams solve the world's toughest problems by empowering customers to understand the security of the Databricks platform and by helping account teams address questions that come up during security reviews. Reporting to the Head of Security Field Engineering, you will meet with customers to answer questions, train other Databricks team members, build customer-facing content such as slide decks, white papers, and maybe write code that customers can use. Our team prioritizes scale -- we'd rather spend an hour building a doc than be in ten hours of meetings, rather deliver agent skills and knowledge base articles than be the rock star answering all the questions. If you want high growth, autonomy, and to touch all elements of security, look no further. The impact you will have: You will be viewed as a security expert as you work with field teams and customers to understand architectures, address concerns and handle compliance questions Your contributions may come in multiple ways, including customer interactions, scalable slides or white paper creation, internal enablement, process improvement, automation, or technical leadership—no one excels in every area, but all are valuable When you’re on the call, you will be directly appreciated. When you’re not, your impact will be felt across the company through the enablement, collateral, knowledge management, and systems you build You might not come from an assurance team, but you’ll come up to speed with common security and compliance regimes to save customers hours of effort and months of uncertainty You will identify customer pain points and work with product management and product marketing will improve our product and our messaging You will contribute to internal-facing services and automation that make life easier for our field staff

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. As a Principal Engineer/Member of the Technical Staff in the Procurement and Operations Central Teams (PROCT) and Advanced Development Team (ADT), you will primarily focus in the early maturity phase of new products as they transition from technology development centers to our high-volume manufacturing sites. Your contributions to our team will support innovation and enable improvements in product yield, quality and cost reduction that are vital to enable our manufacturing strategy. We are looking for outstanding candidates experienced with semiconductor process development/optimization, hardware and supplier management, and an understanding of NAND & DRAM integration to contribute and grow with our organization. Good organization skills and the ability to work independently or in teams is a must and because this role is essential to the success of Micron's products it will require international travel to Micron manufacturing and technology development sites. Your responsibilities include, but are not limited to: Collaborate with Technology Development (TD) on future technology requirements and model of record requirements to ensure manufacturing roadmap is aligned with the forward technology path Partner with TD and Manufacturing on supplier engagement to ensure resources meet Micron's strategic objectives. Collaborate with Manufacturing as new products are introduced to improve performance and enable customer qualification. Connec

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. As a Principal Engineer/Member of the Technical Staff in the Procurement and Operations Central Teams (PROCT) and Advanced Development Team (ADT), you will primarily focus in the early maturity phase of new products as they transition from technology development centers to our high-volume manufacturing sites. Your contributions to our team will support innovation and enable improvements in product yield, quality and cost reduction that are vital to enable our manufacturing strategy. We are looking for outstanding candidates experienced with semiconductor process development/optimization, hardware and supplier management, and an understanding of NAND & DRAM integration to contribute and grow with our organization. Good organization skills and the ability to work independently or in teams is a must and because this role is essential to the success of Micron's products it will require international travel to Micron manufacturing and technology development sites. Your responsibilities include, but are not limited to: Collaborate with Technology Development (TD) on future technology requirements and model of record requirements to ensure manufacturing roadmap is aligned with the forward technology path Partner with TD and Manufacturing on supplier engagement to ensure resources meet Micron's strategic objectives. Collaborate with Manufacturing as new products are introduced to improve performance and enable customer qualification. Connec

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. As a Principal Engineer and Member of the Technical Staff in the Procurement and Operations Central Teams (PROCT) and Advanced Development Team (ADT), you will primarily focus in the early maturity phase of new products as they transition from technology development centers to our high-volume manufacturing sites. Your contributions to our team will support innovation and enable improvements in product yield, quality and cost reduction that are vital to enable our manufacturing strategy. We are looking for outstanding candidates experienced with semiconductor process development/optimization, hardware and supplier management, and an understanding of NAND & DRAM integration to contribute and grow with our organization. Good organization skills and the ability to work independently or in teams is a must and because this role is essential to the success of Micron's products it will require international travel to Micron manufacturing and technology development sites. Your responsibilities include, but are not limited to: Collaborate with Technology Development (TD) on future technology requirements and model of record requirements to ensure manufacturing roadmap is aligned with the forward technology path Partner with TD and Manufacturing on supplier engagement to ensure resources meet Micron's strategic objectives. Collaborate with Manufacturing as new products are introduced to improve performance and enable customer qualification. Connect with co

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. As a Principal Engineer and Member of the Technical Staff in the Procurement and Operations Central Teams (PROCT) and Advanced Development Team (ADT), you will primarily focus in the early maturity phase of new products as they transition from technology development centers to our high-volume manufacturing sites. Your contributions to our team will support innovation and enable improvements in product yield, quality and cost reduction that are vital to enable our manufacturing strategy. We are looking for outstanding candidates experienced with semiconductor process development/optimization, hardware and supplier management, and an understanding of NAND & DRAM integration to contribute and grow with our organization. Good organization skills and the ability to work independently or in teams is a must and because this role is essential to the success of Micron's products it will require international travel to Micron manufacturing and technology development sites. Your responsibilities include, but are not limited to: Collaborate with Technology Development (TD) on future technology requirements and model of record requirements to ensure manufacturing roadmap is aligned with the forward technology path Partner with TD and Manufacturing on supplier engagement to ensure resources meet Micron's strategic objectives. Collaborate with Manufacturing as new products are introduced to improve performance and enable customer qualification. Connect with co

At ClickUp, we're building the future of work: the first truly converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI. We are an AI-native company. Every team member is expected to leverage AI daily, and we evaluate AI fluency as part of our hiring process. Join us and help redefine what's possible. 🚀 Role Overview We’re seeking a Principal Frontend Engineer to drive the long-term technical vision for frontend engineering at ClickUp. In this role, you will lead architectural strategy across major product surfaces, solve company-wide frontend challenges, and influence how teams build and ship at scale. You will partner deeply with engineering, product, design, backend, and integrations leadership to ensure ClickUp’s frontend systems remain fast, reliable, and adaptable as the business grows. This is a hands-on technical leadership role for someone who can operate at both strategic and implementation levels, especially in a high-growth, fast-paced environment. What You’ll Do Define and drive frontend architecture strategy across product areas and platform investments Lead the design of scalable, performant systems in Angular 2+ and React that support rapid product development Solve complex cross-team technical challenges related to performance, state management, scalability, and developer productivity Partner with backend and integrations teams to shape end-to-end architecture for major features and systems Raise the bar for quality, testing, maintainability, and engineering rigor across the frontend organization Provide technical leadership on the highest-impact initiatives and unblock teams working through ambiguous or difficult problems Guide teams toward pragmatic decisions that support both speed and long-term product quality Mentor senior and staff engineers, and help shape frontend engineering culture and standards Influence roadmap and organizational decisions through strong technical judgment

At ClickUp, we're building the future of work: the first truly converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI. We are an AI-native company. Every team member is expected to leverage AI daily, and we evaluate AI fluency as part of our hiring process. Join us and help redefine what's possible. 🚀 Role Overview We’re seeking a Principal Frontend Engineer to drive the long-term technical vision for frontend engineering at ClickUp. In this role, you will lead architectural strategy across major product surfaces, solve company-wide frontend challenges, and influence how teams build and ship at scale. You will partner deeply with engineering, product, design, backend, and integrations leadership to ensure ClickUp’s frontend systems remain fast, reliable, and adaptable as the business grows. This is a hands-on technical leadership role for someone who can operate at both strategic and implementation levels, especially in a high-growth, fast-paced environment. What You’ll Do Define and drive frontend architecture strategy across product areas and platform investments Lead the design of scalable, performant systems in Angular 2+ and React that support rapid product development Solve complex cross-team technical challenges related to performance, state management, scalability, and developer productivity Partner with backend and integrations teams to shape end-to-end architecture for major features and systems Raise the bar for quality, testing, maintainability, and engineering rigor across the frontend organization Provide technical leadership on the highest-impact initiatives and unblock teams working through ambiguous or difficult problems Guide teams toward pragmatic decisions that support both speed and long-term product quality Mentor senior and staff engineers, and help shape frontend engineering culture and standards Influence roadmap and organizational decisions through strong technical judgment