Full-Stack Engineer at Hark | San Jose

Join our team as a Validation Engineer specializing in Media Stack Validation. In this role, you will be responsible for ensuring the integrity and performance of our media validation processes. You will work closely with cross-functional teams to identify issues and enhance system efficiencies.

About EtchedEtched is pioneering the development of the world's first AI inference system specifically designed for transformer architectures, achieving over 10x greater performance and significantly reduced costs and latency compared to conventional solutions like the B200. With Etched's custom ASICs, you can create innovative products that were previously unattainable with GPU technology, such as real-time video generation models and advanced deep reasoning agents. Supported by substantial investments from top-tier venture capitalists and a team of elite engineers, Etched is transforming the foundational technology layer for the most rapidly evolving sector in history.Job SummaryWe are on the lookout for a talented and driven Post-Silicon Validation Engineer to become part of our vibrant team. The successful candidate will play a pivotal role in bringing up, validating, and characterizing ASICs from the initial silicon phase through to the production ramp-up. This critical position ensures the functional accuracy, performance integrity, and reliability of our advanced AI and machine learning accelerator hardware, facilitating the successful launch of our innovative products.

etched seeks a Systems Validation Engineer (Level 10) based in San Jose. This position centers on ensuring that systems operate reliably and consistently meet performance targets. Key responsibilities Develop and execute validation protocols for both new and existing systems Review and interpret system performance data to identify issues and suggest improvements Collaborate with engineering, product, and quality teams to enhance product reliability Role impact The work in this role directly influences the quality and dependability of etched’s products. Effective validation helps ensure solutions perform as intended and align with customer expectations.

Role overview Etched seeks a PCIe Validation Engineer based in San Jose. This position centers on hands-on validation and testing of PCIe products, ensuring their integrity and reliable performance. The work directly influences the quality of PCIe solutions delivered to customers. What you will do Validate and test multiple PCIe protocols through hands-on methods Review and analyze test results to spot issues or performance limitations Collaborate with engineers from other teams to enhance product quality

Join Etched as a Power Validation Engineer and become an integral part of a dynamic team dedicated to advancing cutting-edge technology. In this role, you will be responsible for ensuring the reliability and performance of power systems through rigorous validation processes. Your expertise will contribute to the development of innovative solutions that drive our mission forward.

Join Renesas Electronics as a Validation Engineer Intern and embark on an exciting journey in the field of semiconductor technology. This internship offers you a unique opportunity to collaborate with a dynamic team, contributing your skills to validate cutting-edge products and solutions that drive innovation in various industries.

About EtchedEtched is pioneering the development of the world's first AI inference system specifically designed for transformers, achieving over 10x higher performance along with significantly reduced costs and latency compared to traditional solutions like B200. Our cutting-edge ASIC technology empowers the creation of products that were previously unfeasible with GPUs, enabling real-time video generation models and highly advanced deep reasoning agents. Supported by substantial investments from top-tier investors and staffed by leading engineers in the industry, Etched is at the forefront of revolutionizing the infrastructure layer for the fastest-growing sector in history.Job OverviewWe are on the lookout for a skilled and enthusiastic Platform Validation Engineer to join our team. In this role, you will focus on validating the functionality of system hardware and printed circuit boards (PCBs), ensuring optimal power and signal integrity across all interfaces. Your responsibilities will include collecting and analyzing lab data to verify hardware performance, supporting post-silicon characterization, and guaranteeing reliable operation across multiple subsystems, such as PCIe and I2C.Key ResponsibilitiesConduct thorough system hardware and PCB functional verifications to ensure all features align with design specifications, including validation of power and signal integrity margins.Gather and analyze lab data to confirm power delivery, signal integrity, and the overall robustness of the system.Assist in post-silicon validation by identifying critical performance metrics and performing PVT, power, and thermal characterizations.Assess PCIe performance, focusing on signal integrity, eye opening measurements (EOM), and bit error rate (BER) to ensure sufficient operating margins.Detect hardware issues, execute root cause analyses, and facilitate resolutions in collaboration with cross-functional teams.Design and implement DOE experiments to troubleshoot hardware problems and enhance system performance.Validate power sequencing, microcontroller functionality, and perform analyses on power efficiency, noise, and transients.Conduct detailed characterizations of I2C bus systems to ensure compliance with design requirements.Document and track PCB issues and validation results, ensuring effective communication with relevant stakeholders.Work closely with design, firmware, and system engineering teams to guarantee comprehensive hardware quality.

Astera Labs (NASDAQ: ALAB) builds rack-scale AI infrastructure by developing advanced connectivity solutions. The company works with hyperscalers and partners across the ecosystem to help organizations make the most of modern AI. Astera Labs' Intelligent Connectivity Platform integrates semiconductor technologies such as CXL®, Ethernet, NVLink, PCIe®, and UALink™ with the COSMOS software suite to support flexible, scalable connectivity systems. Role overview This Electrical Validation Engineer Internship for 2026 is located in San Jose, CA. The internship centers on post-silicon validation for connectivity products. Interns will take on lab-based challenges that require both hardware and software skills, contributing to real engineering projects. What you will do Support post-silicon validation activities for Astera Labs' connectivity solutions Troubleshoot and solve lab challenges involving hardware and software Work closely with cross-functional teams throughout the validation process Collaboration Interns will interact with engineers and other teams to address technical challenges and ensure product quality during validation.

Astera Labs, based in San Jose, CA, develops connectivity solutions for AI and cloud infrastructure. The company works closely with hyperscalers and technology partners to deliver products that help organizations scale and optimize AI workloads. Astera Labs' Intelligent Connectivity Platform integrates technologies like CXL, Ethernet, NVLink, PCIe, and UALink with the COSMOS software suite to support end-to-end connectivity in advanced systems. Both standards-based and custom solutions are available, allowing customers to tailor architectures for their infrastructure needs. Role overview The System Validation Engineer (NCG 2026) will focus on validating high-speed interconnects and AI fabrics in custom silicon. This role involves working with advanced technologies such as PCIe Gen5/Gen6, CXL, and memory-semantic fabrics. What you will do Participate in chip bring-up for new silicon products Debug and validate system-level functionality across multiple connectivity standards Work with technologies including PCIe Gen5/Gen6, CXL, and memory-semantic fabrics Requirements Interest in system validation for high-speed interconnects and AI infrastructure Familiarity with custom silicon or semiconductor technologies is helpful Located in or able to work from San Jose, CA To learn more about Astera Labs, visit www.asteralabs.com.

Astera Labs, based in San Jose, CA, creates connectivity solutions tailored for rack-scale AI infrastructure. The team works with technologies including CXL®, Ethernet, NVLink, PCIe®, and UALink™ as part of its COSMOS software suite. These products support both standard and custom architectures for organizations building scalable systems for AI workloads. More information can be found at www.asteralabs.com. Role overview The Electrical Validation Engineer - NCG 2026 will contribute to the development and execution of electrical validation tests, measuring device performance across various system conditions. This role plays a key part in ensuring Astera Labs’ connectivity products for AI and Machine Learning meet strict parametric standards and customer requirements. What you will do Create validation strategies for new products after silicon fabrication Automate testing for integrated circuits and board-level products Design experiments to investigate and address unexpected device behaviors Collaborate with internal teams to assess performance margins and confirm compliance with specifications

Axiado is seeking a Senior FPGA/Emulation Validation Engineer based in San Jose. This position centers on validating and emulating FPGA designs to ensure they meet demanding standards for performance and reliability. Role overview The Senior FPGA/Emulation Validation Engineer plays a key part in the engineering team. The focus is on verifying that FPGA designs function as intended and support the development of advanced solutions. What you will do Validate FPGA designs for accuracy, performance, and reliability Emulate complex hardware systems to support ongoing development Contribute technical expertise to engineering projects that aim for high standards Location This role is based in San Jose.

Join our innovative team at System Canada Technologies as an Automation Engineer specializing in media stack technologies including audio, video, and HDMI interfaces. In this role, you will leverage cutting-edge technology to optimize automation processes and enhance performance in our media solutions.Your expertise will contribute to developing robust automation frameworks that ensure seamless integration and functionality across various media applications. If you are passionate about media technology and automation, we want to hear from you!

Etched develops AI inference systems designed specifically for transformer models. The company’s ASIC technology aims to deliver over 10x the performance of conventional systems, while reducing both cost and latency. This approach supports products that standard GPUs cannot handle, such as real-time video generation and advanced reasoning agents. Etched is backed by leading venture capital firms and staffed by experienced engineers focused on advancing AI infrastructure. Role overview The Director of Lab Operations leads the Platforms Validation lab at Etched’s San Jose location. This position oversees all operational aspects, from hardware intake and serialization to equipment setup and ongoing lab maintenance. The role manages workflow, coordinates board and component rework, supervises a skilled lab team, and is responsible for the physical infrastructure of the facility. Regular collaboration with the Head of Platform Validation Engineering ensures that lab operations stay aligned with engineering objectives and project timelines. What you will do Oversee hardware intake, serialization, and inventory management Coordinate and track rework for boards and components Maintain and enhance the physical lab environment and infrastructure Commission and set up lab equipment as required Supervise and support the lab staff Manage workflow to support efficient testing and validation Work closely with engineering leadership to align lab operations with project schedules Requirements Experience managing laboratory or technical infrastructure operations Background in team supervision or junior management Technical understanding of hardware validation workflows Ability to interpret schematics and follow bring-up sequences Experience overseeing PCB rework activities

Drive Innovation with PurposeAt BILL, we empower businesses that fuel our economy by modernizing outdated financial processes with cutting-edge tools. We aid companies—ranging from startups to established enterprises—in making informed decisions and gaining operational control. Our mission extends beyond mere solutions; we are pioneering the future of financial automation, allowing businesses to focus on what truly matters.Joining us means being part of a visionary team eager to confront challenges and develop innovative solutions. We cherish purpose, drive, and curiosity, thriving in a dynamic and fast-paced environment. Whether you're based in our San Jose, CA office, our Draper, UT location, or working remotely, BILLers collaborate to create substantial impact for businesses seeking additional time in their busy schedules.At BILL, we build high-performing teams and actively seek the best talent for every position. We are committed to fostering a workplace that embraces inclusion and diverse perspectives, appreciating each individual’s unique skills and experiences. We would love to hear from you—your skills may be just what we need, whether for this role or another. Let’s give businesses more time for what matters.Make an Impact at a Rapidly Growing Fintech CompanyJoin BILL’s Account Payables - Multi-Entity team, where we are revolutionizing the management of complex financial operations across multiple entities, subsidiaries, and locations. As a Senior Software Engineer, you will design and scale innovative back-office solutions, handling enterprise-level data volumes and intricate workflows that empower Lower Mid-Market Customers and Accountants to optimize operations through our flagship Multi-Entity (ME) offering.This team operates with a “startup” mentality within the broader AP operations, having developed a core platform from the ground up in the last year that efficiently manages data across hundreds of entities with a focus on reliability, performance, and availability. This is your chance to thrive in a collaborative, high-growth environment where your technical expertise will directly shape BILL’s vision to empower businesses through financial automation. Please note that this position operates in a hybrid work model from our San Jose office.

Company OverviewTENEX is a cutting-edge cybersecurity firm that integrates sophisticated artificial intelligence with human expertise to revolutionize enterprise security. Supported by renowned investors such as Andreessen Horowitz (a16z) and Shield Capital, TENEX offers an innovative Managed Detection and Response (MDR) service, fundamentally changing how organizations identify and address security threats. With extensive knowledge in Google and Microsoft security frameworks and advanced AI capabilities, TENEX empowers companies to strengthen their threat detection, enhance operational agility, and ensure resilience, all while optimizing their security investments. As an early team member, you will significantly contribute to shaping and cultivating our company culture.We are looking for a dynamic and adaptable Full Stack Engineer to join our core engineering team. You will be pivotal in constructing and expanding our platform, engaging with the entire technology stack, from designing robust backend services to developing intuitive user interfaces. As part of our team, you will have the chance to influence essential technical decisions and contribute to defining our engineering culture. We seek proactive individuals who thrive on problem-solving and possess a strong desire to learn and grow in a fast-paced environment.At TENEX.AI, we place a high value on culture—visit our culture deck at culture.tenex.ai to see how we emphasize the essential collaboration and community fostered through in-person work.Location: This role requires on-site presence Monday through Thursday at our San Jose, CA location, with the option to work from home on Fridays.

The Trade Desk is looking for a Senior Full Stack Software Engineer to join the Omnichannel division. This position centers on designing and building software that enhances user experiences across a range of platforms. Projects involve both web applications and integrated advertising technology. Key responsibilities Collaborate with engineering, product, and design teams to deliver applications for the omnichannel platform Develop and maintain software that integrates with The Trade Desk’s advertising technology stack Work on both front-end and back-end systems to support seamless user interactions Locations This role is open in Bellevue, Boston, Boulder, Chicago, Denver, Irvine, Los Angeles, New York, San Francisco, San Jose, Seattle, and Ventura.

Join our team as a Java Full Stack Engineer specializing in MongoDB and Kafka. This long-term contract role offers the opportunity to design and develop cutting-edge applications using Java/J2EE technologies, including Core Java, Spring, and RESTful web services.Design and develop robust applications utilizing Core Java, Spring framework, and RESTful web services.Leverage your expertise in MongoDB to build and optimize applications.Utilize Kafka to create queues and integrate efficiently with MongoDB and other custom applications.Bring your 9+ years of IT experience to collaborate with cross-functional teams to achieve project milestones.Communicate effectively with clients and manage stakeholder expectations.

Archer Aviation is developing all-electric vertical takeoff and landing (eVTOL) aircraft in San Jose, California. The company’s mission centers on creating sustainable air mobility solutions, with aircraft designed to carry four passengers while minimizing noise for quieter, cleaner transportation. Archer values diversity and inclusion, encouraging every team member’s perspective and fostering equity throughout the workplace. Role overview The Senior Staff Engineer - Battery Cell Stack will lead the design and development of high-voltage battery pack components for both commercial and defense eVTOL aircraft. This position plays a key role in shaping battery technology for multiple aircraft programs. What you will do Oversee the full design process for high-voltage battery pack components across several aircraft platforms. Collaborate with CAE engineers, quality assurance, testing, supply chain, and manufacturing teams to align on project goals. Engage in hands-on prototyping, assembly, and root cause analysis during the design cycle. Work with integration and certification teams to ensure battery systems meet FAA certification standards. Create and refine battery design solutions that fulfill strict aerospace requirements. Establish and promote design standards and best practices for Archer’s battery systems. Mentor junior engineers working on battery design. Develop and maintain the battery hardware technology roadmap for future products and applications.

Role overview Bluelight Consulting seeks a Full-Stack Digital Marketer to join the team remotely from Latin America. This role centers on designing and carrying out digital marketing strategies that help clients grow their brands and deepen customer engagement. What you will do Develop and execute digital marketing plans that align with client objectives Lead SEO projects to raise online visibility Manage and optimize social media campaigns on multiple platforms Plan and deliver email marketing campaigns Create and curate digital content to support marketing efforts Requirements Background in SEO, social media marketing, email campaigns, and content creation Ability to work independently in a remote environment Keen interest in digital trends and new marketing approaches Residence in Latin America Location This position is fully remote for candidates based in Latin America. Bluelight Consulting’s main office is in San Jose, Costa Rica.