Cell and Gene Therapy Technician

Join Mithrl as a Lead Bioinformatics EngineerAt Mithrl, we envision a future where groundbreaking medicines are swiftly delivered to patients, transforming the landscape of health care.Mithrl is pioneering the world's first commercially available AI Co-Scientist, a revolutionary discovery engine that converts complex biological data into actionable insights …

Join Us in Revolutionizing Life Science ResearchAt Medra, our goal is to leverage artificial intelligence, robotics, and biological science to expedite research in life sciences, ultimately aiming to eliminate diseases. We are developing our Physical AI Scientist platform, which encompasses: Physical AI capable of manipulating scientific instruments with the dexterity akin to human hands. Scientific AI that autonomously analyzes results, evaluates subsequent steps, and completes the research loop.We are embarking on an ambitious journey, and we believe that a team of passionate individuals taking ownership can achieve remarkable milestones.Your Role in Our VisionAs a Scientist at Medra, you will spearhead the development and execution of antibody screening and characterization using our Physical AI platform. Your responsibilities will include supporting tissue culture operations, designing and conducting in vitro and cell-based assays for antibody candidates, and enhancing our lab capabilities through new assay formats and automated workflows.This position is ideal for someone who combines scientific acumen with practical skills—who has experience designing and implementing antibody characterization and functional assays in high-pressure environments and is excited by the prospect of transitioning hands-on expertise to an autonomous laboratory setting. You will collaborate closely with fellow scientists and roboticists to develop, validate, and operationalize assays on our platform.Key ResponsibilitiesDesign, execute, and analyze antibody screening and characterization campaigns from high-throughput primary hit triage to orthogonal confirmation.Develop and implement cell-based binding and functional assays using flow cytometry for characterizing antibodies, VHHs, and additional binder formats.Conduct biophysical characterization of antibody candidates, including SPR and BLI for assessing affinity and kinetics, and epitope binning—interpreting results to guide decision-making.Perform developability assays to evaluate manufacturability and risk factors—assessing thermal stability (DSF/DSC), aggregation and monomericity (HPLC-SEC), hydrophobicity (HPLC-HIC), polyspecificity/non-specific binding, and expression titer—assisting in candidate triage based on comprehensive characterization data.Maintain and engineer mammalian cell lines (e.g., Expi293, ExpiCHO, HEK293, CHO) and establish robust cell-based characterization and functional assays.

Our MissionAt Altos Labs, we are dedicated to restoring cell health and resilience through cutting-edge cell rejuvenation techniques aimed at reversing diseases, injuries, and age-related disabilities.For more information, please visit our website at altoslabs.com.Our ValueOur core value emphasizes that Everyone Owns Achieving Our Inspiring Mission.Diversity at AltosWe recognize that diverse perspectives are crucial for fostering scientific innovation. At Altos, brilliant scientists and industry leaders collaborate to advance a common goal. We prioritize belonging, ensuring that every employee feels valued for their unique viewpoints, and we are committed to maintaining a diverse and inclusive workplace.Your Role at AltosIn this position, you will play a pivotal role in enhancing our development of agentic AI methods for the curation and analysis of biological and clinical data. As a key member of our multidisciplinary teams, you'll help build computational platforms that empower Altos in fulfilling its mission. You will work alongside biomedical research experts, machine learning scientists, and engineers to design and implement advanced agentic AI systems and workflows that address vital biological inquiries, expedite clinical data analysis, and support the discovery of innovative interventions for aging and disease.The ideal candidate will possess extensive knowledge in agentic AI methodologies, complemented by a solid background in bioinformatics and/or clinical R&D. Collaborating closely with domain specialists, you will convert complex biological and clinical data challenges into intelligent, automated solutions. You should excel in a dynamic environment that values teamwork, transparency, scientific excellence, creativity, and integrity.

Join Veracyte, a leader in transforming cancer care through innovative diagnostics that empower patients and clinicians alike. At Veracyte, we provide an inspiring work environment where you can make a significant impact on patients' lives while advancing your career. Our culture, known as the Veracyte way, emphasizes collaboration, resilience, and a commitment to excellence.Our Core Values:We Seek A Better Way: We boldly innovate and learn from challenges to improve cancer care.We Make It Happen: We prioritize urgency, quality, and enjoyment in our work.We Are Stronger Together: We foster open collaboration and celebrate our collective successes.We Care Deeply: We honor our diverse backgrounds and support each other in doing what is right.The Role:We are on the lookout for an enthusiastic Bioinformatics Research Scientist to join our Translational Bioinformatics group within the Bioinformatics and Data Science Team. This pivotal role involves leveraging computational and statistical techniques on extensive transcriptomic and genomic datasets, particularly focusing on prostate cancer biology and its clinical implications. The ideal candidate will play a key role in identifying clinically relevant molecular signatures that enhance disease stratification, prognosis, and the development of diagnostics, while effectively communicating findings to both scientific and clinical audiences. This position offers a unique opportunity to bridge the realms of data science, biology, and clinical research through close collaboration with scientists, clinicians, and cross-functional teams to convert complex data into actionable insights.

Join Our Innovative Team at ArcadeAt Arcade, we are revolutionizing the way physical products are created with our cutting-edge AI platform. We empower individuals to turn their creative ideas into tangible products seamlessly, utilizing natural language and generative AI. Our mission is to democratize product design, making it as effortless as sharing a post online.Backed by a remarkable $42M in funding from industry-leading investors including Reid Hoffman and Ashton Kutcher, our company is a rising star in the tech landscape. Guided by our founder Mariam Naficy and a team steeped in AI and design expertise, we are at the forefront of a new frontier that merges AI, personal expression, and on-demand manufacturing.Your Role as an Applied AI EngineerWe are on the lookout for an Applied AI Engineer to enhance our generative AI capabilities. This position combines hands-on model development with the integration of advanced AI techniques into our production systems. You will collaborate with diverse teams to conduct research, experiment with models, and implement AI-driven products.

Join our dynamic team as a Cell and Molecular Biologist in the heart of San Francisco! We are looking for a passionate individual eager to contribute to groundbreaking research. In this role, you will have the opportunity to work with cutting-edge technologies and collaborate with top scientists in the field.

About Retell AIAt Retell AI, we are pioneering the future of call centers through innovative voice AI technology. Our cutting-edge solutions are transforming how companies engage with customers.In just 18 months since our inception, we've empowered thousands of businesses with our AI voice agents that efficiently manage sales, support, and logistics calls, significantly reducing the need for large teams of human agents. Supported by industry-leading investors including Y Combinator and Alt Capital, we've grown our annual recurring revenue from $5M to an impressive $36M while expanding our team from 5 to 20 talented individuals since 2025.Our ambitious vision for 2026 is to develop a state-of-the-art customer experience platform where entire contact centers are driven by AI. Unlike basic automation requiring constant human oversight, we’re engineering intelligent AI “workers” capable of serving as frontline agents, quality assurance analysts, and managerial roles, all while optimizing customer interactions continuously.We are rapidly expanding and seeking driven builders who thrive on solving complex technical challenges, act decisively, and wish to make a tangible impact in one of the fastest-growing voice AI startups.Join us in shaping the future!Recognized as a top 50 AI application in the a16z list: https://tinyurl.com/5853dt2xRanked #4 in Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025Featured among the top startups on: https://leanaileaderboard.com/

Join our innovative team at Integrated Resources, Inc. as a Cell & Gene Therapy Technician. In this pivotal role, you will contribute to groundbreaking advancements in therapeutic technologies that aim to improve patient outcomes. As part of a dynamic and collaborative environment, you will engage in hands-on tasks that support the development and production of cell and gene therapies.

Join a pioneering team of former Google engineers who have developed ground-breaking defensive technologies, such as Safe Browsing and reCAPTCHA. We are on a mission to confront an urgent challenge: combating the rising tide of adversarial AI attacks that threaten organizations globally.Operating in stealth mode, we are targeting a lucrative $5B+ market that is primed for innovation. Conventional detection methodologies are proving inadequate against the speed and sophistication of AI-driven assaults. Current adversaries are leveraging AI to engineer tailored, high-evasion attacks, leaving traditional systems vulnerable.Your Role:You will design a network of AI agents that are rapid, cost-effective, and precise, collaborating to identify and neutralize emerging threats. Your work will dive deep into real-time threat data, continuously evolving your agents in a fast-paced environment. These agents will function under an orchestration layer that fosters quick adaptation and learning.The Excitement of the ChallengeRapidly Evolving Models: The landscape changes daily; solutions that worked yesterday may be outdated today.Intelligent Adversaries: We are engaged in a real-time arms race against cunning, AI-enhanced attackers crafting sophisticated payloads.No Existing Playbook: We are forging new detection paradigms as swiftly as threats evolve. This high-stakes work places you in the heart of the action from day one.If you thrive on solving challenging problems with rapid feedback, this is your opportunity.Why We Are Positioned to SucceedExpansive Market: The market is vast at $5B and expanding quickly, while established players struggle to adapt.Proven Track Record: Our team has previously developed the foundational technology for Safe Browsing (serving over 5B users) and reCAPTCHA (protecting more than 5M websites) during our time at Google.Experienced Team: This is our third endeavor in creating a category-defining security enterprise, and we know how to scale our technology and our organization effectively.Deeply Integrated AI and Security: We embed AI from the outset rather than layering it on top.Top Talent: We hire only the highest achievers; many on our team were in the top 1% of engineers at Google. If you excelled in your previous role, you will fit right in.Agility: We prioritize speed and efficiency in everything we do.

Standard Cell Design LeadJoin Substrate, a pioneering force in addressing critical technological challenges in the U.S. We are at the forefront of advanced manufacturing and innovative physics, dedicated to reshaping the semiconductor landscape and enhancing America's technological prowess. Our team comprises world-renowned scientists, engineers, and technical experts committed to creating transformative technology.As the Standard Cell Design Lead, you will spearhead the development and optimization of standard cell libraries while overseeing cell characterization and library validation initiatives. This role demands a profound knowledge of digital cell design, layout, and timing characterization, along with a robust understanding of library requirements for digital design workflows. You'll collaborate with various teams across multiple locations, including external fabrication facilities, in this full-time, onsite position.

About the RoleWe are on the lookout for a skilled Forward Deployed AI Engineer to join our dynamic team at Stack AI. This position is crucial for implementing enterprise-level AI solutions with an emphasis on Retrieval-Augmented Generation (RAG) pipelines and large language model (LLM) workflows. Your contributions will significantly enhance our offerings to Fortune 500 companies and enterprises across diverse sectors.Role Overview:In this role, you will seamlessly integrate large language models into enterprise systems, collaborating with strategic accounts to tailor solutions that meet their technical needs. Utilizing the Stack AI platform, you’ll engage with clients to co-create innovative solutions that address their evolving challenges.Key Responsibilities:Enhance and maintain solutions for strategic accounts using the Stack AI platform.Analyze and document requirements and relationships within target enterprise offices.Identify opportunities and provide insights to shape our go-to-market strategy.Directly contribute to the Stack AI codebase, transforming customer feedback into enhancements for the Python backend and React/Next.js TypeScript frontend.Project future opportunities and secure high-value contracts.Draft proposals, present to stakeholders, and lead engaging product demonstrations.Promote Stack AI at enterprise conferences and events.

About NudgeNudge is on a transformative mission to harness advanced technology that interfaces with the brain to enhance human life. Our pioneering focus is on creating a cutting-edge, non-invasive ultrasound device capable of stimulating and imaging the brain with unparalleled resolution. This initiative integrates innovative hardware, software, and research methodologies to develop life-changing products that can eventually benefit millions, if not billions, of individuals.About the RoleAs a Research Scientist specializing in Cell Biology at Nudge, you will:Innovate techniques to characterize the mechanisms by which ultrasound affects neural tissue.Design and conduct in vitro experiments to assess the influence of ultrasound on cellular characteristics, activity, and plasticity.Optimize ultrasound parameters to enhance cellular activity and promote plasticity.Translate findings from in vitro studies to guide human neuromodulation research.About YouWe are looking for research scientists at various stages of their careers. Regardless of your level, you should possess:A PhD or postdoctoral experience in neuroscience, molecular/cellular biology, biomedical engineering, or a related field.Expertise in neural cell culture or slice methodologies, with a preference for human neural iPSC techniques.Experience in calcium imaging, functional imaging analysis, two-photon microscopy, or other advanced imaging techniques.Proficiency in electrophysiology, voltammetry, or other neural recording methodologies.A proven track record of significant technical contributions.A commitment to high integrity and ethical research practices.

Role OverviewLocation: San Francisco, CA Work Model: In-officeAbout Effective AIAt Effective AI, we are pioneering the future of work, focusing on sophisticated AI solutions for complex knowledge tasks rather than simple, repetitive functions. Our goal is to develop advanced AI Teammates that excel in intricate workflows and collaborate seamlessly with human professionals. Our initial challenge is to revolutionize the trillion-dollar U.S. Property & Casualty insurance sector, an area rich in data and complexity, ideal for our innovative approach.We have successfully secured $10 million in seed funding from prominent investors including Lightspeed Ventures and Valor Equity Partners.Our passionate team operates out of San Francisco, where we value in-person collaboration to address these pressing challenges.Your ResponsibilitiesAs a Founding Software Engineer, you will be an integral member of our founding team, significantly influencing the design and development of our core product from inception. You will confront critical challenges in agentic AI, crafting Teammates capable of managing essential insurance functions such as underwriting and claims processing.Specifically, you will:Facilitate long-term task completion by creating the foundational architecture for AI agents to plan and execute multi-step processes reliably over prolonged interactions.Develop advanced reasoning functionalities, enabling agents to make informed decisions based on ambiguous or incomplete information, akin to human experts.Create intelligent, tool-utilizing agents capable of selecting and employing a variety of external tools—APIs, databases, web searches, and Excel-based pricing algorithms—to gather information and take decisive actions.Design adaptive and learning systems, equipping our AI Teammates to learn from feedback and adjust to evolving conditions such as regulatory changes or market dynamics.Your ProfileWe seek an innovative and driven builder excited to tackle substantial challenges.You possess a solid foundation in computer science and remarkable problem-solving capabilities, evidenced by impactful projects or previous experience.Your genuine enthusiasm for AI fuels your passion for tackling complex issues.

About Fractional AIAt Fractional AI, we specialize in creating tailored generative AI software that revolutionizes businesses.In today’s landscape, C-suite executives across the nation are striving to bridge the divide between theoretical AI and practical application. We facilitate this transition with our outstanding engineering talent and bespoke end-to-end AI solutions. Explore some of our case studies to discover more about our impact.Joining Fractional AI means becoming part of a dynamic team located in San Francisco and NYC, working on innovative generative AI projects for leading companies, all within the atmosphere of an engineering-centric startup.About Bringing Your Own Engineering TeamWe understand that the right team can significantly amplify our capabilities, fostering collaboration and driving collective achievement. If you are part of an existing group of 2-5 engineers—perhaps you co-founded your own venture or have been affected by layoffs—we invite you to apply to join Fractional AI as a team.We will coordinate your interviews for the same day, and should we extend an offer, it will be to all team members simultaneously. Each of you will have the freedom to accept or decline individually, but we hope you will all join us, after which we will collaborate to identify initial projects at Fractional AI where you can work together.As a member of Fractional AI, you will take a pivotal role in developing and launching AI applications for our first clients—from comprehending customer requirements to deploying solutions in their environments—all while contributing to the evolution of our Engineering team and the broader culture at Fractional AI as we grow to over 100 engineers.

About Us:At novita-ai, we are a rapidly growing global provider of AI cloud infrastructure, leading the charge in the artificial intelligence revolution. Our innovative platform equips developers and enterprises with powerful, scalable, and user-friendly solutions such as Model APIs, GPU Instances, and Serverless Computing. As organizations around the globe strive to integrate AI into their offerings, we serve as the essential engine that fuels their innovative efforts.Join our world-class team and contribute to our expanding customer base. This unique opportunity allows you to be part of a dynamic company in a hyper-growth market, where your technical skills will directly impact customer success and drive our business forward.The Role:As a Solutions Engineer, you will act as the primary technical leader and trusted advisor for our clients throughout their journey. You will collaborate closely with the sales team to bridge the gap between complex customer challenges and our sophisticated technical solutions. Your mission is to build technical credibility, demonstrate the capabilities of our platform, and design tailored solutions that empower our clients to achieve their AI-related business objectives.What You'll Do:Technical Discovery & Solution Design: Collaborate with Account Executives to gain a deep understanding of customer needs, technical requirements, and business goals. Develop elegant and effective solutions utilizing our AI infrastructure stack (Model APIs, GPU Instances, Serverless).Product Demonstration & Proof of Concept (POC): Conduct engaging, customized product demonstrations and interactive workshops. Plan, manage, and execute successful POCs, showcasing the value and performance of our platform within the client’s environment.Technical Evangelism & Trusted Advisory: Communicate the value proposition of our platform to diverse audiences, including both technical and non-technical stakeholders, from engineers to C-level executives. Establish yourself as the go-to expert for customers on best practices in AI infrastructure.Sales Enablement & Market Feedback Loop: Create and maintain technical sales materials, including whitepapers, best practice guides, and demo scripts. Serve as the voice of the customer, relaying valuable feedback from the field to our Product and Engineering teams to influence our product roadmap.Onboarding & Implementation Guidance: Facilitate a seamless post-sales transition by providing initial onboarding support and architectural guidance, setting customers up for sustained success.

About ArcadeArcade is pioneering the world’s first AI-driven platform for creating physical products, where creativity meets reality. Our innovative platform empowers users to design, purchase, and sell custom, manufacturable products using natural language and generative AI. We believe in democratizing creation, allowing anyone to produce physical goods as effortlessly as sharing online content, and we are developing the infrastructure to realize this vision for both consumers and businesses.With a substantial investment of $42M from an exceptional group of investors, including notable figures like Reid Hoffman and Ashton Kutcher, Arcade is set to revolutionize the industry. Our founders and investors are backed by a talented team from leading companies such as Google, Apple, and NVIDIA, driven by the mission to innovate at the intersection of AI, personal expression, and on-demand manufacturing.Role SummaryAs a Product Engineer specializing in AI, you will be a crucial player in shaping the future of design and commerce. Reporting directly to our Co-Founder & CEO, Mariam Naficy, you'll collaborate with engineers, designers, and AI researchers to deliver groundbreaking experiences. You will take ownership of key products from inception through execution, determining development directions and implementing them effectively.The ideal candidate is an innovative engineer capable of designing agent behaviors, writing production-quality code, prototyping workflows, crafting system prompts, debugging issues, and iterating based on user feedback. This role requires a proactive mindset and the ability to manage cross-functional initiatives in a dynamic startup environment.

About Simple AIAt Simple AI, we are pioneering cutting-edge voice AI solutions tailored for enterprises. Our lifelike voice agents empower renowned companies such as DoorDash, xAI, and Omaha Steaks in managing diverse phone operations ranging from customer support to order intake and lead qualification. As we experience rapid revenue growth, we seek a couple of founding software engineers to help us meet current customer demands while developing innovative systems for the future. Our team is passionate about harnessing AI to transform the world, and we operate from our San Francisco office five days a week.Simple AI is proudly supported by top-tier investors and industry leaders, including Y Combinator, Massive Tech Ventures, and prominent figures like Michael Seibel (co-founder of Twitch), Jared Friedman (Scribd), Alexandr Wang (Scale AI), Matt Van Horn (June Oven and Lyft), Suhail Doshi (Mixpanel), JJ Fliegelman (WayUp), and Scott Wu (Cognition).Meet the FoundersThe founders, Catheryn Li and Zach Kamran, previously led software teams at Y Combinator, where they launched numerous products for YC founders, including the co-founder matching site. Cat brings experience from Instagram and Facebook and holds degrees in mathematics and computer science from MIT. Zach studied computer science and statistics at the University of Chicago and led software initiatives at PEAK6.What We ProvideCompetitive salary with significant equity opportunitiesEmployee-friendly equity termsOffice located in San FranciscoComprehensive health, dental, and vision insuranceComplimentary lunch and dinner at the officeFree Uber rides home after 8:30 PMRegular team events and offsite activitiesYour Qualifications4+ years of relevant software engineering experience.Exceptional problem-solving skills and a passion for tackling technical challenges.A customer-centric mindset coupled with strong communication skills and a keen interest in product design and prioritization.Self-motivated with the ability to work independently.A genuine enthusiasm for continual learning and keeping abreast of the latest advancements in AI.

ABOUT MITHRLAt Mithrl, we envision a future where innovative medicines are delivered to patients in mere months instead of years, and where scientific advancements occur at the speed of thought.We are pioneering the world's first commercially available AI Co-Scientist, a transformative discovery engine that rapidly converts complex biological data into actionable insights. Scientists can pose inquiries in natural language, and Mithrl provides comprehensive analyses, novel target suggestions, hypotheses, and patent-ready documentation.Our impressive growth reflects our success:Achieved 12X year-over-year revenue growthTrusted by leading biotech companies and major pharmaceutical firms across three continentsFacilitating significant breakthroughs from target discovery to patient outcomes.ROLE OVERVIEWWe are searching for a QA Engineer specializing in Scientific Software to develop the testing, validation, and monitoring infrastructure that ensures the accuracy and reliability of the Mithrl AI Co-Scientist. This position necessitates a PhD-level scientist or computational biologist who comprehends the intricacies of the drug development lifecycle and possesses practical experience with omics data. A solid scientific foundation is crucial for assessing the biological relevance of Mithrl's outputs.In this role, you will implement automated testing for analysis workflows, data ingestion pipelines, and discovery applications. You will establish CI systems for early regression detection, set up monitoring and alerting for system performance, and ensure every module in Mithrl generates scientifically valid and reproducible outputs. This position is a vital link between scientific knowledge and software quality engineering, essential for maintaining trust in Mithrl's analytical capabilities.If you are a scientist passionate about product reliability, reproducibility, and the validation of machine learning-powered scientific tools, this role offers a uniquely impactful opportunity.KEY RESPONSIBILITIESDevelop automated testing frameworks for data ingestion, analysis modules, discovery applications, and new product features.Create scientific validation frameworks to ensure correctness and reproducibility of machine learning-driven biological analyses.Implement continuous integration workflows that conduct end-to-end tests with every commit, identifying scientific and computational regressions.Establish monitoring and alerting systems to track health, performance, and reliability metrics.

Saris AI develops advanced AI automation for the banking sector, with teams in San Francisco, Montreal, and Toronto. The company addresses large-scale automation challenges, focusing on long-context reasoning, integrating with legacy systems, and meeting strict compliance needs. Saris AI’s AI agents are already active in production, supporting real customer workflows as the business expands. Role overview The San Francisco engineering team is seeking an Engineering Manager. This leader will guide engineers through shifting priorities and frequent ambiguity. The position involves building and leading teams, managing projects from concept to launch, and ensuring the delivery of reliable software that powers AI-driven products. What you will do Build and lead engineering teams focused on automation and AI Oversee software projects from initial idea through production launch Adapt to changing requirements and priorities as the company grows Address the technical challenges unique to deploying software in AI systems Requirements Proven experience building and leading engineering teams History of delivering software projects from start to finish Comfort working in environments where priorities and requirements shift quickly Understanding of the complexities involved in AI-driven software deployment Location This role is based in San Francisco.