Software Systems Validation Engineer

About ZiplineZipline is the global leader in drone delivery services, committed to providing equitable access to essentials like food, medicine, and critical goods anytime, anywhere. We are pioneers in designing, building, and operating the largest autonomous logistics system, facilitating rapid and reliable delivery of essential supplies. With operations on…

About You and the Role Zipline is pioneering the world’s largest autonomous logistics network, responsible for delivering critical medical and commercial supplies worldwide. As we expand our operations into increasingly complex and safety-sensitive environments, validating and demonstrating our autonomy performance at scale becomes paramount. We are in search of a highly skilled software engineer to join our Autonomy Validation team—a vital group dedicated to developing the infrastructure, tools, and frameworks necessary for software validation across the entire Autonomy division. This encompasses planning, perception, control, and the decision-making logic that drives our self-flying aircraft. Our autonomy stack is uniquely custom-built. While this provides us with unparalleled control and performance, it also necessitates the creation of tailored validation tools, as standard testing solutions are insufficient. In this position, you will be responsible for developing robust internal platforms for validation, enabling extensive simulations and rigorous scenario testing, thus ensuring that autonomy engineers can operate with confidence. This role is not focused on quality assurance; instead, it represents a foundational software engineering position that will significantly influence our approach to testing, verifying, and safely deploying autonomy on a global scale. What You'll Do Develop and maintain the infrastructure for validating autonomous features and system performance across planning, perception, and control. Design and create simulation tools and scenario generation for extensive, high-fidelity testing of autonomy in both real-world and edge-case scenarios. Build custom tools for the validation and testing of autonomy components that integrate seamlessly into our internal development stack. Create scalable, dependable, and automated solutions for executing, tracking, and analyzing thousands of validation tasks within the autonomy organization. Engage collaboratively with: Autonomy engineers, to assess how system behaviors should be evaluated. Systems and data engineers, to ensure metrics, safety thresholds, and requirements are codified in our testing infrastructure. Flight test and QA teams, to connect real-world results back into testing tools and continuous integration loops. Establish best practices for software release validation, ensuring our autonomy stack is safe, measurable, and production-ready. Contribute to internal documentation, standards, and validation workflows that can scale across the autonomy organization.

Zipline is hiring an Autonomy Software Engineer to focus on validation tools at its South San Francisco office. This position plays a key role in building and validating software that underpins the autonomous functions of Zipline's delivery drones. The work has a direct impact on the reliability and performance of drone operations in real-world settings. Responsibilities Create and enhance validation tools for autonomous drone systems Work closely with multidisciplinary teams to raise software quality Tackle complex technical issues that affect drone autonomy Contribute to the dependability and efficiency of field operations Location This role is based in South San Francisco, California, USA.

About ZiplineAre you ready to make a global impact? Zipline is on a transformative mission to revolutionize logistics and delivery systems. We aim to address some of the world's most pressing access issues by designing, manufacturing, and operating an instant delivery network that serves everyone, everywhere. From enhancing Rwanda's national blood delivery network and facilitating Ghana's COVID-19 vaccine distribution to providing on-demand home delivery for Walmart, we are changing the landscape of logistics for businesses, governments, and consumers alike. Our technology may be complex, but our vision is straightforward: a teleportation service that ensures you receive what you need, precisely when you need it. By leveraging robotics and autonomy, we're committed to decarbonizing delivery, alleviating road congestion, and minimizing fossil fuel usage and air pollution, while promoting equitable access for billions and constructing a more resilient global supply chain. Join Zipline and be part of our commitment to establishing a fair and resilient global supply chain for billions.

About ZiplineZipline stands as the world's leading drone delivery service, committed to providing equitable access to food, medicine, and essential goods globally, at any time. We design, develop, and operate the largest autonomous logistics system, ensuring swift and reliable delivery of critical supplies. Currently, Zipline operates across four continents, achieving a delivery approximately every 30 seconds and has successfully completed millions of deliveries of vital items such as blood, vaccines, medical supplies, food, and retail products.Our clientele includes some of the largest and most renowned healthcare systems, government entities, retailers, restaurants, and global businesses that depend on us to save lives, minimize emissions, amplify economic opportunities, and facilitate rapid point-to-point delivery. The drone is merely 15% of what we have constructed to support seamless and dependable global operations.Our innovative system reinforces supply chains, alleviates congestion, and restores valuable time to individuals. With over 140 million commercial autonomous miles flown safely, Zipline is transforming access to healthcare, consumer products, and food worldwide.Operating at an international scale, we are in search of practical problem solvers who excel in facing real-world challenges and adapting to rapid growth. Our team is driven by the desire to create systems that directly and significantly impact lives while scaling the future of logistics. We seek individuals who work from fundamental principles, thrive in adversity, and can achieve remarkable feats at unprecedented speeds.

Join Veracyte, a leader in cancer diagnostics, as we empower healthcare professionals and transform patient care worldwide. At Veracyte, our innovative team is dedicated to making a profound impact on the lives of cancer patients while fostering an environment of growth and learning. We embody the Veracyte way, a collaborative approach that values insights and promotes life-changing decisions for patients.Our Core Values:Innovate for a Better Future: We pursue groundbreaking innovations and learn from challenges to advance cancer care.Deliver with Purpose: We act swiftly, uphold high-quality standards, and find joy in our hard work.Collaborate for Success: We engage in open communication, strive for understanding, and celebrate our achievements together.Cultivate a Caring Culture: We embrace diversity, uphold ethical practices, and support one another.Position Overview:We are looking for a passionate Software Development Engineer who excels in front-end development, interaction design, and software craftsmanship. In this role, you will create intuitive, high-performance, and scalable user experiences. You will be responsible for developing high-quality interfaces and supporting services, ensuring that our products are both technically sound and user-friendly.

Software Engineer for Delivery Network Platform At Zipline, we are revolutionizing logistics by developing the operating system for an autonomous delivery network. The Delivery Network Platform team is responsible for constructing the essential systems that ensure our aircraft, sites, and infrastructure are primed for live delivery operations. Our mission is to develop the software that operators utilize to monitor and manage the network in real-time, the orchestration systems that maneuver the fleet, and the validation platforms that guarantee the network functions correctly as it scales and becomes more complex. Your Responsibilities In this role, you will manage software that is pivotal to our fleet operations, including: Development of Network Operating Center software for real-time operational insight and intervention across our aircraft, sites, missions, weather, and demand. Creation of fleet orchestration systems for assignment, routing, scheduling, and rebalancing. Maintenance and asset health systems linking issue detection to return-to-service protocols. Simulation and validation platforms to assess topology, load, and policy changes prior to production deployment. Development of platform interfaces and configurable control planes that enable other teams to safely extend the network. Challenges and Ownership Unlike typical software roles that focus on digital optimization, this position is integral to the operation of a live autonomous logistics network. You will tackle substantial challenges such as: Ensuring a dependable real-time view of aircraft and critical site assets throughout the network. Maintaining network flow amidst demand fluctuations, weather changes, infrastructure issues, or capacity constraints. Designing operator control interfaces that facilitate swift and accurate decision-making under pressure. Simulating potential network behaviors to mitigate risks before production implementation. This role involves ownership of critical platform components, allowing you to make influential technical and product decisions that affect network performance. Our Work Culture Our team values high ownership, trust, and technical excellence. Engineers are encouraged to identify significant challenges, articulate a vision for system functionality, and lead solutions from inception to deployment. We also expect our engineers to leverage AI tools effectively to enhance productivity during exploration, implementation, and debugging, while upholding strong engineering standards, judgment, and accountability.

About ZiplineAre you ready to make a significant impact? Zipline is on a transformative mission to revolutionize logistics and delivery systems across the globe. We are dedicated to addressing the most pressing access challenges by developing the first instant delivery and logistics network that serves everyone equally, no matter where they are. From supporting Rwanda's national blood delivery system and Ghana's COVID-19 vaccine distribution to facilitating on-demand home deliveries for Walmart, we are changing how goods are transported for businesses, governments, and consumers alike.The technology we utilize is intricate, yet our goal is straightforward: to create a teleportation service that delivers essentials precisely when needed. Our robotics and autonomous systems are designed to reduce carbon emissions, alleviate road congestion, and minimize fossil fuel dependency while ensuring equitable access for billions of people and strengthening the global supply chain. Join Zipline and contribute to our vision of establishing a fair and robust global supply chain for billions worldwide.About You and The RoleAs a key member of Zipline’s Flight Controls team, you will play a pivotal role in modeling, developing, and testing critical flight software systems that empower our vehicles to deliver autonomously. Our team excels at innovating solutions that allow our delivery platforms to operate seamlessly in diverse and increasingly challenging environments, ensuring equitable service to all. You will leverage a variety of analytical techniques to assess system performance and understand how design decisions impact capabilities and requirements. Collaboration across teams will be essential as you drive enhancements to our products using data derived from flight testing and our extensive fleet of customer aircraft. By engaging closely with our customers, you will gather insights to identify improvements and prioritize our next growth phases. Your success directly influences the operational effectiveness of our logistics network.

Join Zipline in Revolutionizing DeliveryAre you ready to make a difference? At Zipline, we are on a mission to redefine logistics and access to goods globally. Our innovative approach tackles some of the world’s most pressing challenges by developing an instant delivery and logistics system that is accessible to everyone, regardless of their location. From facilitating blood deliveries in Rwanda to distributing COVID-19 vaccines in Ghana, and providing essential products to U.S. homes, we're transforming the logistics landscape for businesses, governments, and individuals alike.Our technology may be complex, but the concept is straightforward: a teleportation service that ensures timely delivery of essential items. By leveraging robotics and autonomous systems, we are not only decarbonizing delivery but also mitigating road traffic, cutting down on fossil fuel usage, and enhancing air quality. Join us in our quest to create a more equitable and robust global supply chain for billions around the world.

About Us:At Culture Biosciences, we are dedicated to revolutionizing bioprocess development, facilitating our customers in accelerating their biopharmaceutical products to market efficiently.Focusing on upstream cell culture processes, we have created an innovative platform that integrates products, services, and data management, applicable to mammalian, microbial, and viral vector production. This platform empowers clients to swiftly execute high-throughput process development projects in their facilities or ours, all through our cloud-connected web application that allows for seamless experiment design, management, and analysis.Our team thrives on a shared passion for biomanufacturing, engineering, and operations, continuously striving to enhance bioprocess development speed and efficiency. Curiosity, communication, collaboration, customer focus, and a results-driven mindset are the values we uphold.About the Role:We invite you to join our enthusiastic development team as a Software Engineer Intern. In this role, you will significantly contribute to developing and executing comprehensive end-to-end integration tests to ensure the reliability and resilience of our systems.Your primary responsibilities will center around automated testing of our published API endpoints, backend APIs, and frontend components. Most tests will be scripted in Python, while frontend tests will utilize Cypress. You will also assist in manual testing efforts to guarantee high-quality releases for our customers.Additional opportunities include building emulators, enhancing our embedded systems (STM, Raspberry PI), and crafting and integrating drivers for third-party devices.This internship offers a remarkable chance to work on cloud-based software that interacts with hardware systems, providing hands-on experience in testing scalable and reliable SaaS platforms within the biotech industry.What You’ll Do:Design, develop, and execute automated end-to-end integration tests for Stratyx.Conduct testing on backend APIs, published API endpoints, and frontend components.Contribute to manual testing efforts to ensure quality assurance.

About Zipline Are you ready to make a significant impact? Zipline is committed to revolutionizing the logistics landscape. Our mission is to tackle the world's most pressing access challenges by creating, manufacturing, and operating the first instant delivery and logistics system that caters to all individuals, regardless of their location. From powering Rwanda's national blood delivery network and facilitating Ghana's COVID-19 vaccine distribution to enabling Walmart's on-demand home delivery, we are reshaping the movement of goods for businesses, governments, and consumers alike. Our technology may be intricate, but our vision is straightforward: a teleportation service that delivers essential items promptly. Through our innovative use of robotics and autonomous systems, we are not only decarbonizing deliveries but also alleviating road congestion, reducing fossil fuel usage, and combating air pollution, all while ensuring equitable access for billions and strengthening the global supply chain. About You and The Role Are you excited by the challenge of developing large, integrated electro-mechanical systems—from initial engineering builds to full-scale production and worldwide deployment? Do you thrive on tackling tasks that others deem too difficult or impossible? Are you the engineer everyone turns to for insights on building and scaling unprecedented projects? At Zipline, our work has real-world implications. Families and patients depend on us daily, and there is no margin for error. If you are passionate about leveraging your engineering skills to devise efficient and innovative manufacturing solutions, we encourage you to continue reading. We are in search of a highly skilled and proactive Senior Manufacturing Engineer to join our team. In this pivotal role, you will be tasked with designing and scaling multiple in-house final assembly lines for our aircraft, zips, docks, and various essential feeder sub-assemblies. You will ensure these lines meet escalating demand—from tens of units weekly to hundreds over the next three years—while continuously reducing costs and enhancing product quality. If you excel in fast-paced environments, enjoy managing multiple new developments simultaneously, and can swiftly align teams towards solutions, we would love to connect with you.

Lightship is hiring a Senior Engineering Technician at its South San Francisco facility. This position plays a key part in supporting the design, development, and testing of engineering projects, working closely with engineers to guide ideas from concept to completion. A hands-on approach and technical know-how are essential for keeping projects on schedule and meeting goals. Key responsibilities Support engineering design, development, and testing tasks Collaborate with engineers to address technical challenges as they arise Contribute to maintaining quality and performance standards throughout project phases What we look for Proactive approach and strong problem-solving abilities Genuine enthusiasm for engineering and technology Background in supporting engineering projects from initial stages through completion

About AeroVectAeroVect is at the forefront of revolutionizing ground handling through innovative autonomous solutions, fundamentally changing the operational landscape for airlines and ground service providers globally. As a Series A startup, we are supported by prominent venture capitalists in aviation and autonomous technology, catering to some of the largest airlines and ground service providers worldwide. To learn more, visit www.aerovect.com.We are seeking a passionate Perception Intern to contribute to the development and enhancement of our perception systems for the AeroVect Driver — our leading autonomous vehicle platform designed for airport operations. In this role, you will engage with various aspects of the Perception stack, including Computer Vision, Sensor Processing, Sensor Fusion, and Machine Learning, tackling critical challenges where precision and reliability are essential.This internship offers a unique opportunity to collaborate closely with our Perception and Autonomy engineering teams, gaining invaluable experience as you develop Perception modules utilized in actual vehicles at airports worldwide. This is a high-impact position for individuals eager to make their mark in the field of autonomous systems.

Role Overview Cellares is seeking a Senior Operational Technology Engineer in South San Francisco, CA. This role focuses on strengthening and improving operational technology systems across the company. What You Will Do Work closely with teams from different departments to improve operational systems. Apply technical knowledge to boost the efficiency and reliability of technology supporting operations. Help identify and implement solutions that improve overall performance and support operational goals.

ABOUT ZIPLINEAre you ready to make a difference? At Zipline, we are revolutionizing the logistics of goods transportation. Our mission is to address the world's most pressing access challenges by creating, manufacturing, and operating an instant delivery system that serves all people, regardless of their location. From supporting Rwanda’s national blood delivery network and distributing COVID-19 vaccines in Ghana to facilitating on-demand delivery for Walmart and enabling healthcare providers to reach patients' homes across the U.S., we are reshaping logistics for businesses, governments, and consumers alike. Our technology blends robotics and autonomy to decarbonize delivery systems, alleviate traffic congestion, reduce fossil fuel dependency, and ensure equitable access for billions while reinforcing a more resilient global supply chain.Join us at Zipline and contribute to our vision of building a fair and robust global supply chain that benefits everyone.ABOUT YOU AND THE ROLEThe Avionics team comprises skilled hardware, software, and testing experts dedicated to designing resilient systems that power our life-saving drone delivery operations in some of the most challenging environments worldwide. We are tasked with creating aircraft avionics capable of performing optimally in diverse and harsh climatic and electromagnetic interference (EMI) conditions. As a crucial component of the overall Zipline aircraft system architecture, we prioritize high performance and reliability while minimizing weight and costs.In this role, you will collaborate with our team to deliver high-performance flight computers and tightly integrated communication and navigation systems. These avionics systems are central to our new unmanned aerial system, which aims to scale Zipline’s deliveries from 100,000 to 100 million per year globally. The success of Zipline hinges on developing avionics systems that are lightweight, cost-effective, reliable, and capable of high-volume production. This position requires rigorous engineering design and validation efforts, alongside innovative approaches to packaging, integration, fault tolerance, and validation. We seek a test engineer with a solid background in electrical engineering principles and relevant experience in manufacturing testing, design validation, system performance characterization, and certification.

Join FlyZipline as a Senior Staff RF Test Engineer and play a pivotal role in revolutionizing the logistics industry through cutting-edge drone technology. In this position, you will be responsible for designing, implementing, and executing tests to validate RF components, ensuring our systems meet the highest standards of reliability and performance.This role requires a strategic thinker with a passion for innovation and a commitment to excellence in engineering practices. You will collaborate with cross-functional teams to enhance our product offerings and contribute to our mission of delivering essential medical supplies swiftly and efficiently.

About Lightship Lightship builds all-electric recreational vehicles in South San Francisco, CA. As the first American company focused on battery-powered RVs, Lightship aims to improve travel for over 11 million families who enjoy RV life. The team designs innovative, aerodynamic trailers built for the electric era, combining performance with convenience. Diversity and Inclusion Lightship values a workforce with a wide range of backgrounds and perspectives. The company maintains a flat organizational structure and encourages integrity, creativity, and autonomy. Collaboration is central to the way Lightship works. Role Overview: Software Engineer - UI/UX This Software Engineer position focuses on Android UI/UX and systems interfacing. The primary responsibility is to design the user experience for vehicle controls and to present telemetry data from Lightship RVs within a mobile interface. The role also contributes to developing and implementing cloud infrastructure. Success in this position relies on a strong understanding of both the technical systems and how users interact with them.

Zipline seeks a Senior Electrical Engineer to focus on Long Range Platforms at its South San Francisco location. This position centers on designing and developing electrical systems for Zipline’s delivery drones. Role overview The Senior Electrical Engineer leads efforts to create and refine the electronics that power Zipline’s long-range drone platforms. The work aims to improve both reliability and efficiency, supporting the delivery of essential goods around the world. Key responsibilities Design and develop electrical systems for drone platforms Drive improvements in reliability and operational efficiency Support technology that enables global delivery of vital supplies Location This role is based in South San Francisco, California.

Color Health is transforming the landscape of cancer care with the innovative Virtual Cancer Clinic, the first of its kind in the nation. We offer high-quality, physician-led multidisciplinary care across all 50 states, focusing on cancer screening, risk assessment, prevention, diagnosis, treatment support, and survivorship. Our services extend beyond direct medical care to include cancer genetics risk assessment, nutritional guidance, mental health support, and at-home cancer screening diagnostics.At Color, we leverage technology-driven, patient-centric solutions to reshape how employers, unions, health plans, and governments tackle the challenges of cancer care. Our mission is to bridge critical gaps in cancer care, enhance patient outcomes, and guide individuals empathetically through their healthcare experiences.We invite you to apply and engage in the most meaningful work of your career. If you feel you might not meet every qualification but are eager to take on a challenge, we encourage you to apply!About The Role Our New Grad Software Engineer position is tailored for recent graduates from May 2025 to May 2026. Candidates with prior full-time industry experience in software engineering are encouraged to explore our other engineering openings. We are seeking passionate software engineering graduates to join Color's teams, contributing to new programs and technologies that will shape the future of our organization. The projects you will work on range from enhancing customer experiences to developing our at-home testing programs and improving the cancer screening to survivorship pathway. As part of your onboarding, you will not only gain insights into Color's systems but also immerse yourself in the craft of software engineering. You will collaborate closely with senior engineers who will mentor you in essential skills such as engineering design, code review best practices, testing methodologies, observability techniques, and collaborative skills with product and engineering teams.

About Us: Calico Life Sciences LLC, a subsidiary of Alphabet, is at the forefront of research and development, focusing on understanding the biology of human aging through advanced technologies and innovative model systems. Our mission is to leverage this knowledge to create interventions that promote longer, healthier lives. With cutting-edge technology labs, a commitment to curiosity-driven scientific discovery, and a dynamic drug-development pipeline in collaboration with academic and industry partners, Calico is a vibrant environment for catalyzing medical breakthroughs. Role Overview: We are on the lookout for a Senior Data Engineer to become a key member of our collaborative Engineering team and lead the establishment of the Drug Discovery Data Engineering group. The ideal candidate will be an enthusiastic team player, meticulous, highly organized, and adept at navigating intricate data, software, and scientific challenges. In this role, you will serve as a crucial technical liaison among our Medicinal Chemistry, Automation, Machine Learning, Assay Technology, and Protein Sciences teams. You will oversee projects from initial requirements through to production deployment, engineering high-performance data systems that integrate with our molecular databases (CDD Vault), inventory systems (Mosaic), electronic lab notebooks (Benchling), our internal data warehouse (BigQuery), and our proprietary AI platform. As the inaugural hire for this team, your contributions will be instrumental in shaping data flows, developing web applications for stakeholder engagement, and establishing a progressive engineering culture in this vital growth sector. Key Responsibilities: Project Leadership: Collaborate with scientists across Assay Technology, Medicinal Chemistry, and Protein Sciences to gather requirements, design solutions, and implement production-grade software that enhances data movement and analysis. System Integration: Create and deploy effective integrations between internal pipelines and third-party platforms, particularly involving the CDD molecular database, Mosaic inventory systems, and Benchling ELN. Data Flow Optimization: Develop and refine data flows organization-wide (e.g., facilitating seamless data transitions from Machine Learning to Protein Sciences to Assay Technologies) to expedite the drug discovery feedback loop. Full-Stack Development: Build data systems and internal web applications (utilizing React and Python) to empower stakeholders to review, visualize, and communicate complex scientific data effectively. Mentorship & Leadership: Act as a senior technical advisor within the broader Engineering team.