Principal Engineer in Advanced Package Technology

Join Lumilens as a Principal Engineer in Advanced Package Technology and take the lead in shaping innovative solutions in the field of advanced packaging. In this pivotal role, you will leverage your extensive expertise to drive the development and implementation of cutting-edge package technologies. Collaborate with cross-functional teams to enhance product performance and reliability, while ensuring compliance with industry standards.

Job Title: Advanced Package Design EngineerOffice Location: San Jose, CAWork Model: Onsite About SK hynix AmericaAt SK hynix America, we are leading the charge in semiconductor innovation, delivering cutting-edge memory solutions that drive the functionality of everything from smartphones to expansive data centers. As a global frontrunner in DRAM and NAND flash technologies, we are at the forefront of mobile technology evolution, enhancing cloud computing capabilities, and spearheading the development of future technologies. Our advanced memory technologies are pivotal in powering today’s most sophisticated electronic devices and IT infrastructures, ensuring superior performance and user experiences across the digital realm.We seek visionary thinkers to join our mission of redefining the technology landscape. At SK hynix America, you will collaborate with a team that is innovating groundbreaking memory solutions while upholding a strong commitment to sustainability. We are not merely adapting to technological advancements; we are the driving force behind them, with substantial investments in artificial intelligence, machine learning, and eco-conscious solutions and practices. As we continue to grow our market presence and push the limits of semiconductor technology, we invite you to be part of our journey in creating the next generation of memory solutions that will shape the future of computing.Job Summary:We are looking for a talented Advanced Package Design Engineer to become a part of our Packaging Engineering team at SK hynix America. In this role, you will be tasked with designing and optimizing high-performance, high-density interposers for chiplet-based architectures and heterogeneous integration solutions. You will work closely with PCB, SI/PI, thermal, and manufacturing teams to deliver robust, manufacturable, and cost-effective packaging solutions.Responsibilities:Design silicon and organic interposers for advanced packaging solutions.Utilize EDA tools such as Virtuoso/APD, Synopsys Custom Compiler, and Siemens Xpedition to create and verify advanced package layouts.Conduct design studies and 'what-if' scenario analyses for advanced packaging schemes to optimize overall package design.Create and maintain layout design rules, stack-ups, and layout guidelines.Collaborate with internal and external stakeholders to ensure seamless development of advanced packaging technologies.

Join Lumilens as an IC Package FEA Engineer, where you will play a pivotal role in the design and analysis of advanced semiconductor packaging solutions. We are looking for innovative minds who are passionate about pushing the boundaries of technology and contributing to cutting-edge projects.

About EtchedEtched is pioneering the development of the world's first AI inference system specifically designed for transformer models, achieving over 10x the performance and significantly lower costs and latency compared to traditional methods like B200. With our proprietary ASICs, you can create revolutionary products, such as real-time video generation models and highly sophisticated reasoning agents. Supported by substantial investments from top-tier investors and driven by a team of leading engineers, Etched is transforming the infrastructure for the fastest-growing industry of our time.Job OverviewWe are looking for a talented Substrate IC Package Layout Design Engineer to join our dynamic team. In this role, you will oversee the complete design process of intricate IC substrate packages, catering to high-power consumption and high-speed signaling requirements. The ideal candidate will bring substantial experience in large substrate designs (>50mm), complex power delivery networks, and high-speed signaling solutions (up to and exceeding 50GHz). You will collaborate closely with silicon, signal integrity, power integrity, and system engineering teams to co-design state-of-the-art substrates with OSAT providers, with a strong emphasis on optimizing power delivery through substrate technology.Key ResponsibilitiesLead the design and development of sophisticated IC substrate layouts for high-performance AI processors and accelerators.Design complex multi-layer substrate packages (>50mm) with high pin counts and intricate routing requirements.Ensure robust power delivery designs capable of supporting custom silicon solutions exceeding 700W.Develop high-speed signal routing solutions that facilitate >50GHz signaling while minimizing issues such as loss and crosstalk.Work alongside SI/PI engineers to determine signal integrity and power integrity requirements, implementing effective solutions within the substrate layout.Optimize CoWoS (Chip-on-Wafer-on-Substrate) designs for enhanced thermal and electrical performance.Collaborate with chip design, packaging, and manufacturing teams to ensure design feasibility and manufacturability.Conduct design validation and verification processes to ensure compliance with specifications.

San Jose or LA, CA (Hybrid)At FloQast, we are on a mission to transform the way accounting teams function by leveraging AI-native workflows. Our platform is a trusted operating system for thousands of global organizations, streamlining complex financial processes into swift, reliable, and scalable systems.We are seeking a Principal Software Engineer who not only develops software but also influences platform architecture, enhances team productivity, and drives significant innovation.This pivotal role involves making architectural decisions that will impact the entire FloQast application ecosystem and propel innovation across our product offerings.

Axiado Corporation is on the lookout for a talented Senior IC Packaging Engineer to spearhead technical leadership and architectural ownership of cutting-edge IC and System-in-Package (SiP) solutions in a dynamic startup atmosphere. This position is tailored for an experienced technologist who merges extensive hands-on expertise with a comprehensive system-level perspective, thriving in ambiguous and impactful environments.In this role, you will define and implement high-performance, low-power packaging architectures that encompass 2D and RDL-based fan-out (2.5D) and chiplet-based designs, driving efforts from initial technology exploration through to production ramp-up. Collaborating closely with foundries, OSATs, substrate suppliers, and internal cross-functional teams, you will influence product execution and long-term packaging strategies.Key ResponsibilitiesAct as the technical authority for IC and SiP packaging across various products and programs.Own the package architecture and technology roadmap, ensuring alignment with product, cost, and scalability objectives.Lead the development of chiplet-based packaging strategies, including UCIe, silicon interposers, and advanced RDL.Guide hands-on package design and physical layout, focusing on critical structures for High-speed SerDes/PHY (PCIe, CXL), LPDDR5, UCIe, and other multi-gigabit interfaces.Define substrate stack-ups, materials, bump/RDL architectures, and Design-for-Manufacturing (DFM) guidelines for advanced nodes.Drive signal integrity (SI), power integrity (PI), thermal, mechanical, and reliability trade-offs at the system and package levels.Engage externally with OSATs, foundries, and key suppliers to facilitate technology development and manufacturing readiness.Influence product roadmaps, risk management, and investment decisions through technical insights.Establish scalable design methodologies, best practices, and reusable packaging flows.

Join KIOXIA as a Principal Standards Engineer specializing in SSD Industry Standards, where you will be at the forefront of defining globally recognized specifications for innovative storage solutions. This pivotal role will allow you to advance KIOXIA's strategic interests while shaping the future of the storage industry. You'll engage in monitoring, analyzing, reporting, and crafting technical proposals that influence product interoperability and cutting-edge features.In this role, you will collaborate with international teams within KIOXIA and engage with customers and competitors alike to align product development with industry standards. Your contributions will drive the standardization of KIOXIA’s groundbreaking features, enhancing speed, capacity, and security across various applications.Key Responsibilities:Lead the establishment and implementation of KIOXIA’s standardization strategy across the Enterprise, Client, and Datacenter storage segments.Act as a principal technical contributor representing KIOXIA in standards committees and technical forums.Drive the creation and advancement of technical proposals within relevant standards organizations.Facilitate internal technical alignment among Engineering, Marketing, and Product teams to ensure that standards efforts support product roadmaps and customer needs.Evaluate external technical proposals and guide internal positioning and response strategies.Engage with customers, suppliers, and industry partners to influence standards development and achieve consensus.Oversee standards documentation, proposal tracking, and internal knowledge sharing.Enhance KIOXIA’s visibility and technical leadership through active participation in standards initiatives.Identify emerging standards bodies and technologies where KIOXIA can take a leadership role.Organize and lead regular internal standards review meetings, including setting agendas, tracking decisions, and following up on action items.

Join OKX as a Principal Product Manager to shape the future of our retail trading platform. In this strategic role, you will lead the vision and execution of innovative cryptocurrency and traditional financial trading products, ensuring a seamless and compliant user experience. Your expertise will position our platform as a leader in the industry, driving performance and user satisfaction.

Archer Aviation, based in San Jose, California, is pioneering the development of an all-electric vertical takeoff and landing aircraft aimed at enhancing sustainable air mobility. Our innovative aircraft is designed to carry four passengers while minimizing noise pollution.We are committed to addressing ambitious challenges, and we believe that a diverse workplace fosters intelligence, drives insightful perspectives, and ultimately leads to collective success. Our focus is on creating an equitable and inclusive environment that respects and celebrates our unique differences among team members.As a member of this team, you will:Develop Archer’s multi-disciplinary optimization (MDO) engine, workflows, and high-performance computing resources for aircraft concept development.Translate business objectives and use cases into optimization targets and constraints.Utilize the MDO engine to generate optimal vehicle designs tailored to specific use cases.Effectively communicate findings to stakeholders, supporting executive decision-making processes.Assist systems engineers in converting their designs into high-level requirements and collaborate with the broader Archer engineering team to bring designs to fruition.

Join Couchbase Inc. as a Principal Software Engineer and play a pivotal role in designing and implementing innovative software solutions. You will collaborate with cross-functional teams to drive the technical direction of our products, ensuring high performance and scalability. Your expertise will guide the development of robust systems that meet customer needs and industry standards.

Join our innovative team at Renesas Electronics as a Principal Product Engineer. In this pivotal role, you will be responsible for leading the design and development of cutting-edge semiconductor products. You will collaborate closely with cross-functional teams to ensure product excellence and alignment with our strategic vision.

Archer Aviation is a pioneering aerospace firm headquartered in San Jose, California. We are at the forefront of developing an all-electric vertical takeoff and landing (eVTOL) aircraft, revolutionizing sustainable air mobility. Our mission is to create a quieter, more efficient urban air transportation solution capable of carrying four passengers with minimal environmental impact.At Archer, we are driven by ambitious goals and complex challenges. Our commitment to workplace diversity enhances our innovative capabilities and fosters a culture of inclusivity and teamwork that we believe is vital for success. We strive to create an equitable environment that celebrates the unique contributions of every team member.The OpportunityAs the technical leader in our quality team, you will play a pivotal role in defining the quality standards and process controls for our inaugural certified aircraft, Midnight. Your expertise will be crucial in helping us achieve the highest safety levels akin to commercial airlines while making urban air transport accessible to everyone, thus setting a benchmark for the emerging advanced air mobility sector. This is a contract position with an expected duration of approximately six months.What You’ll DoAs the lead Metrologist at Archer, you will report to the Head of Quality and be responsible for the development and management of the metrology program.Drive the development and implementation of metrology tools to ensure that Midnight adheres to its design specifications.Lead the creation of an aircraft inspection plan during the testing phase at both our San Jose and Covington facilities.Oversee the verification processes for the Midnight program, utilizing a risk-based approach to inspection, including design reviews and tolerance stack-up analyses.Champion the development and deployment of advanced metrology equipment such as laser trackers and Faro arms.Specific tasks include establishing critical wing dimensions with laser trackers, implementing GearPro on CMMs at Archer, and creating training programs for inspectors to measure vital propeller features.Collaborate effectively with cross-functional teams to embed quality principles into all business processes.

Join Lumilens as a Principal Engineer in Manufacturing Test PlatformAt Lumilens, we are at the forefront of developing transformative photonics infrastructure that underpins the next generation of AI supercomputing. Our innovations span from cutting-edge chip-to-chip optical interconnects to scalable photonic engines, all aimed at ushering in a new era of computing that is faster, cooler, and significantly more efficient. As a well-funded startup supported by Mayfield and led by industry veterans who have pioneered transformative technologies, we offer a ground-floor opportunity to revolutionize the optical layer from the silicon level up. Join a team of world-class engineers tackling some of the toughest challenges in optics, systems, and scalability. Every line of code you write, every design decision you make, and every breakthrough you achieve will play a crucial role in shaping the infrastructure of the future. If you are seeking a mission-driven role, an energetic environment, and a chance to make a substantial impact, embark on this exciting journey with us. We’re just getting started.Position OverviewIn this pivotal role, you will develop diagnostics and manufacturing software for the design, testing, and productization of cutting-edge photonics solutions for data centers. Collaborating closely with various optical transceiver engineering teams, you will guide projects from initial concept through to final production, ensuring our optical transceiver solutions effectively reach the market.This position requires a solid and diverse software background coupled with a good understanding of hardware design and manufacturing practices. We also encourage applications from candidates with deep expertise in related areas who are eager to learn and grow.Key ResponsibilitiesDesign, implement, and validate manufacturing tests for mass production of photonic products aimed at data centers.Create high-level software abstractions to interface with low-level hardware components.Develop reusable test scripts and modules to validate firmware behavior, execute regression tests, and support new product introduction (NPI) testing and hardware bring-up.Conduct root-cause analysis of reported failures and isolate issues.Monitor, collect, and analyze data to identify issues and propose solutions that enhance system reliability and efficiency.Integrate with databases or dashboards for visualizing and analyzing test results.

Join KIOXIA as a Principal Standards Engineer in San Jose, where you'll spearhead the development of industry standards for cutting-edge SSD and storage technologies. This pivotal role involves defining how next-generation products will function and interact, ensuring alignment with both KIOXIA's vision and broader industry needs. Your expertise will be essential in monitoring, analyzing, and crafting technical proposals that shape the future of storage solutions.As part of our dynamic team, you will collaborate with international colleagues and industry stakeholders, including customers and competitors, to align product development with established standards. Your efforts will help drive the standardization of KIOXIA’s innovative features, enabling unprecedented speeds, capacities, and security initiatives across various applications.Key Responsibilities:Lead the design and implementation of KIOXIA’s standardization strategy across Enterprise, Client, and Datacenter storage sectors.Serve as a principal technical contributor in standards committees and technical forums, representing KIOXIA with authority.Facilitate the creation, submission, and advancement of technical proposals within relevant standards organizations.Coordinate internal technical alignment across Engineering, Marketing, and Product teams to ensure standards activities align with product strategies and customer expectations.Evaluate external proposals to guide internal responses and strategic positioning.Engage with customers, suppliers, ecosystem partners, and competitors to influence the direction of industry standards and foster consensus.Oversee standards documentation, proposal tracking, and knowledge sharing within the organization.Enhance KIOXIA’s profile and technical leadership through active contributions to standards initiatives.Identify emerging standards bodies and technologies, positioning KIOXIA as a leader in innovation.Organize recurring internal standards review meetings, setting agendas and tracking decisions and follow-up actions.

Join OKX as a Principal Engineer specializing in Agent Infrastructure and Memory Architecture. In this pivotal role, you will lead cutting-edge projects aimed at enhancing our infrastructure and optimizing memory architecture, ensuring the best performance for our operations. Collaborate with cross-functional teams to innovate and implement solutions that drive efficiency and scalability.

About InnoPhase IoTIf you are eager to collaborate with a talented team from diverse backgrounds and share our commitment to working intelligently while celebrating achievements, InnoPhase IoT is the ideal place for you. We embrace innovation in a small company setting and provide opportunities to learn and explore various aspects of technology rather than performing the same tasks daily. Join us if you seek excellence!We are currently seeking a dynamic and analytical Principal Software Engineer to enhance our Wi-Fi firmware team. The ideal candidate will possess substantial embedded software development experience and a proven track record of designing scalable, modular, and reliable firmware for wireless IoT solutions.

Job Title: Principal Engineer, Signal Integrity and Power IntegrityOffice Location: San Jose, CAWork Model: OnsiteAbout SK hynix AmericaAt SK hynix America, we are pioneers in semiconductor innovation, leading the development of advanced memory solutions that power a wide array of devices, from smartphones to data centers. As a global frontrunner in DRAM and NAND flash technologies, we are driving the evolution of mobile technology, enhancing cloud computing capabilities, and exploring future technologies. Our state-of-the-art memory technologies are crucial for the most advanced electronic devices and IT infrastructures, providing improved performance and superior user experiences across the digital realm.We invite visionary minds to join our mission of shaping the future of technology. Here at SK hynix America, you will collaborate with a team dedicated to pioneering advanced memory solutions while upholding a strong commitment to sustainability. We are not merely responding to technological advancements; we are leading them through significant investments in artificial intelligence, machine learning, and environmentally friendly practices. As we expand our market influence and redefine the boundaries of semiconductor technology, we welcome you to be a part of our journey in creating the next generation of memory solutions that will shape the future of computing.Job Summary:SK hynix America is on the lookout for a Principal Engineer to spearhead the Signal Integrity and Power Integrity (SIPI) strategy for cutting-edge advanced packaging technologies. In this role, you will be responsible for the design, analysis, and validation of next-generation advanced packaging solutions for HBM and beyond, including logic-memory integration. This position requires extensive technical expertise in high-speed interface design, collaboration with global R&D teams, and contributions to industry standards for advanced packaging.Responsibilities:Strategic Leadership: Define and manage the SIPI roadmap for advanced packaging families, ensuring alignment of technical direction with product and business objectives.Architecture & Design: Lead the development of high-performance SiP architectures (HBM, interposer, 3D stacks) and validate power delivery and signal integrity throughout the entire stack—from silicon to substrate.Methodology Development: Innovate and disseminate best-practice SIPI methodologies, including electromagnetic extraction, multi-port S-parameter modeling, and power-network analysis for complex packaging environments.Technical Ownership: Supervise the complete design flow (package definition, simulation, and validation).

About Zscaler Zscaler drives digital transformation for organizations worldwide, helping customers operate with agility, efficiency, resilience, and security. The company’s cloud-native Zero Trust Exchange platform uses one of the world’s largest security data lakes to protect clients from cyber threats and data breaches. Zscaler securely connects users, devices, and applications, no matter where they are. Here, results matter more than titles. Teams value transparency, encourage honest and constructive discussion, and move quickly to deliver quality outcomes. Zscaler’s culture centers on customer focus, collaboration, ownership, and accountability. The company looks for innovators who use AI to make a real impact and who thrive in an environment that uses intelligent systems to stay ahead of emerging threats. Role Overview The Staff AI Engineer, People & Culture Technology, joins Zscaler’s IT/Corporate Apps department in a hybrid role based in San Jose, California. This position reports to the Director of Enterprise Systems Programming and requires in-office presence three days per week. What You Will Do Advance the HR technology stack by combining deep Workday knowledge with AI-driven development. Use AI-assisted coding and agentic workflows to build automated solutions for People & Culture (HR) challenges. Enhance intelligent employee experiences across the HR ecosystem. Who Thrives Here Engineers who enjoy high-impact, high-accountability work and move with urgency. Those motivated by purpose and skilled at solving complex problems. People who want to help secure the future of AI-driven cybersecurity. If this describes your approach, Zscaler welcomes your expertise to help shape the next era of cybersecurity.

Join OKX as our Principal Product Manager and lead the strategic vision and execution of our cutting-edge retail trading platform. Leverage your extensive knowledge in both cryptocurrency and traditional finance (TradFi) to ensure we deliver an exceptional, compliant, and high-performance user experience that positions us as a frontrunner in the industry. You will collaborate with cross-functional teams to innovate and enhance our offerings, driving user engagement and satisfaction.

Join Zscaler as a Principal Product Manager specializing in Cybersecurity, where you will lead the development and execution of innovative security solutions. In this pivotal role, you'll collaborate with cross-functional teams to define product strategy, prioritizing features that enhance our offerings and meet market demands. Your expertise will guide product roadmaps, ensuring that our cybersecurity solutions are at the forefront of industry standards.