PHY Algorithms Technical Lead

Cloudinary is at the forefront of empowering businesses to create remarkable digital experiences through effective media lifecycle management at scale. Within our R&D division, the Research Group spearheads the innovation of advanced algorithms aimed at media comprehension, creation, and enhancement.We are on the lookout for a seasoned Staff Backend Engineer who will be instrumental in driving the engineering initiatives for our proprietary platform dedicated to executing and managing production-grade AI models and AI-driven algorithms.This is a mission-critical position for individuals who are enthusiastic about designing robust, GPU-optimized, cloud-native systems that seamlessly integrate algorithmic research with product development. You will have a central role in redeveloping and advancing the platform while providing support to both research and application teams throughout the organization, as well as contributing to MLOps projects.

Senior Engineer – AI Platform LeadAbout HypercoreHypercore is revolutionizing the $3 trillion global Private Credit market—one of the fastest-growing and most underserved asset classes in finance. With the backing of Insight Partners and Y Combinator, we are trusted by leading private credit funds, BDCs, and alternative asset managers to manage their most critical operations.The RoleWe are looking for a dynamic Senior Engineer to spearhead the development of Hypercore’s AI capabilities, shaping the future of intelligent financial infrastructure. This hands-on leadership role will involve architecting, building, and scaling AI-driven features across our enterprise-grade SaaS platform. You will work closely with product, design, and engineering teams to transform complex business challenges into efficient, smart solutions that empower our clients’ decision-making processes.What You’ll DoOversee the complete lifecycle of designing and implementing AI features at Hypercore, from initial concept to architecture, deployment, and ongoing monitoring.Collaborate with product and design teams to identify user needs and AI-driven opportunities.Develop and scale MCP servers and clients for robust enterprise-grade AI services.Construct and maintain core backend services utilizing Node.js, GraphQL, and MySQL.What We’re Looking ForA minimum of 7 years of hands-on software engineering experience.Extensive experience with Node.js, GraphQL, React, and MySQL in production environments.Proficiency in AWS deployment, monitoring, and automation practices.Experience with integrating third-party APIs and handling structured and unstructured data.Familiarity with large language model APIs is highly advantageous.Strong communication, documentation, and collaboration skills.Highly organized, results-oriented, and capable of thriving in a fast-paced startup environment.Bonus PointsHands-on experience with LLMs (e.g., OpenAI, Anthropic).Experience in workflow automation, analytics, or financial technology.Prior experience in a startup or high-growth software company.Exposure to data engineering and ETL processes.

Gong is at the forefront of leveraging AI to redefine the way revenue teams achieve success. Our Gong Revenue AI Operating System consolidates data, insights, and workflows into a single, reliable platform that observes, guides, and collaborates with the top-performing revenue teams globally. Utilizing the innovative Gong Revenue Graph, AI-driven intelligence, specialized agents, and trusted applications, Gong empowers over 5,000 organizations worldwide to gain profound insights into their teams and customers, automate essential sales processes, and close more deals effortlessly. To learn more, visit www.gong.io.Joining Gong means becoming part of a team that thrives on innovation, ambitious aspirations, and a shared passion for excellence. We are pioneering the future of revenue intelligence, and we seek individuals excited to contribute to what's next. You’ll collaborate with a team that dreams big, moves quickly, and deeply values craft and camaraderie. Transparency and trust are at the heart of our operations, providing everyone the opportunity to make a tangible impact. If you’re eager to develop, challenge yourself, and engage in work that truly matters, Gong is where you’ll achieve the pinnacle of your career.As a Senior Backend Engineer at Gong, you will be a key player in transforming the way organizations interpret customer interactions. Your expertise will be vital in architecting and guiding the development of scalable systems, employing cutting-edge technologies, and partnering with cross-functional teams to address high-impact challenges.

Who is Nexxen? Nexxen is at the forefront of transforming advertising through innovative and flexible solutions powered by data. Our technology seamlessly integrates a demand-side platform (DSP) and a supply-side platform (SSP), anchored by the Nexxen Data Platform, enabling advertisers, agencies, publishers, and broadcasters globally to harness data and advanced TV capabilities in meaningful ways.Why Nexxen? Join a diverse team dedicated to revolutionizing the advertising landscape with creativity and collaboration at its core. Our employees embody the Nexxen Way, driven by the principles of Customer Centricity, a Curious Mindset, and Collaboration without Ego.Safety NoticeWe prioritize the safety and well-being of our employees. Be cautious of online scams and fraudulent job postings. Nexxen will never ask for payment for employment or promote questionable financial schemes. If you encounter dubious communications or job postings claiming to be from Nexxen, please reach out to us at infosec@nexxen.com to verify their authenticity.Nexxen Fraud Alert and Notice: Protect Yourself from Impersonation and Fraudulent ActivityWe are seeking a Platform AI Engineer to join our AI Engineering Group in Tel Aviv. This pivotal role involves the development of foundational AI infrastructure and agentic frameworks that will enhance next-generation AI capabilities across Nexxen’s suite of products.Key ResponsibilitiesDesign and develop LLM-based capabilities for use across various productsArchitect and implement agentic systems, including multi-agent workflows and orchestration layersCreate and deploy cutting-edge AI-driven solutions to enhance platform functionalitiesTackle complex business challenges using AI systems beyond mere APIsEstablish and uphold best practices, standards, and methodologies for AI implementation

Join Our Innovative Team at GuiddeAs a leading AI digital adoption platform, Guidde is revolutionizing how modern organizations create and consume knowledge. Established in 2020 by a team of experienced entrepreneurs, we harness the power of generative AI to convert workflows into rich, multi-format documentation within minutes. Our platform empowers teams to disseminate knowledge seamlessly across employees, customers, and AI systems, transforming ordinary processes into engaging, in-app video guides that exist where work truly happens.

At Semperis, we are committed to being a Force for Good, starting with fostering an exceptional workplace environment. We believe that when employees feel valued, supported, and empowered, they achieve their best work. Our focus is on cultivating an employee experience that emphasizes purpose, growth, and balance. Semperis has earned accolades such as being recognized among America’s Fastest-Growing Cybersecurity Companies by the Inc. 5000, named a DUNS 100 Top Startup to Work For, and receiving multiple Inc. Best Workplace awards.What We Are Seeking: We are on the lookout for a Platform Engineering Team Lead to spearhead the development of our platform infrastructure and shared services.Your Responsibilities: As the Platform Engineering Team Lead at Semperis, you will guide a talented team in creating and optimizing the foundational platforms that drive our products. Collaboration with product teams, infrastructure architects, and engineering leaders will be essential in defining and executing our platform strategy.Deliver technical leadership and guidance in platform architecture, design patterns, and code reviews.Monitor team development processes, ensuring accountability for platform service delivery, reliability, quality, and timelines.Establish high-quality standards for platform services while exploring technical solutions to meet current and future demands.Lead the design and implementation of shared platform components, APIs, and infrastructure services.Promote platform adoption across engineering teams and establish best practices for platform usage.Take responsibility for the growth and development of your team members through mentorship and career guidance.Your Qualifications:Over 3 years of experience in leading engineering teams, particularly in platform or infrastructure domains.More than 5 years of experience as a backend developer.In-depth knowledge of at least one of C#, .Net, or .Net Core.Extensive experience with distributed systems, microservices architecture, and API design patterns.Proficient in multithreading, object-oriented programming, and asynchronous patterns.Comprehensive experience in designing, executing, and delivering platform services and shared infrastructure.

Join a Leader in Life Sciences TechnologyUltima Genomics is at the forefront of developing revolutionary genomics technologies, striving to enhance biological understanding and human health through scalable genomic information. With approximately $600 million raised from globally recognized investors, our team comprises experts across various fields, including healthcare, engineering, biotechnology, and software development. We invite you to collaborate with us in harnessing the full potential of genomics to redefine the future of health.We are in search of a passionate Senior Software and Algorithm Engineer to enhance our capabilities!In this role, you will play a vital part in implementing pioneering bioinformatics algorithms and deriving deeper insights from the data generated by our products.

About the Role We are seeking a dynamic Senior Backend Software Engineer to play a pivotal role in shaping our GenAI Platform. In this influential position, you will lead the design and implementation of scalable GenAI systems, ensuring seamless connectivity with various platforms and tools. You will define and establish best practices in AI development, mentor fellow engineers, and shape the company's AI strategy, all while remaining deeply engaged in hands-on development.This role is all about ownership and creating a meaningful impact: from building and leading to shaping transformative outcomes end-to-end.

Join our dynamic Accounts team at Cloudinary, where we are entrusted with the critical infrastructure that lies at the heart of our platform. Our mission is to efficiently manage the primary product Entities that span across all Cloudinary offerings.We take pride in ensuring secure and scalable access control while supporting complex enterprise use cases and powering internal systems that are essential for every team within the organization. By collaborating closely with cross-functional teams, including Product, Platform, and Security, we deliver dependable and impactful solutions.If you are passionate about architecting robust backend systems that can scale globally and tackle significant challenges, we invite you to be part of our innovative team!

Join Our Visionary Team at Orca Security!At Orca Security, we believe that with the right environment and a supportive team, there are no limits to talent. Our collaborative spirit and relentless ambition have propelled us to unicorn status, establishing us as a global leader in cloud security innovation. If you're ready to be part of a remarkable team that inspires each other daily, this is your opportunity to join us!We are on the lookout for passionate and skilled individuals who are eager to join our Sales team and contribute to transforming the future of cloud security. Are you ready to dive in and swim with us?Why Choose Us?Rapid Growth: Over the last seven years, we have consistently surpassed milestones that often take a decade for other companies to achieve. Our employee base has expanded significantly, our customer reach has grown, and our product capabilities have advanced at an impressive pace.Innovative Disruption: Our founders recognized the shortcomings of traditional security solutions for the cloud and embarked on a journey to create a new paradigm. We are pioneering agents of change, having developed agentless technology and continuously enhancing our status as the most comprehensive and innovative cloud security provider.Strong Financial Backing: With a valuation of $1.8 billion, Orca Security stands as a cybersecurity unicorn leading the cloud security landscape. We are supported by a stellar group of investors, including Capital G, ICONIQ, GGV, and SVCI, a consortium of CISOs who invest their own resources after thorough evaluations.Culture of Respect and Transparency: Our executives are committed to accessibility and knowledge sharing. Every employee has a voice in shaping the future of our industry.Your Role:As the Team Lead for the Data Platform, you will steer one of Orca's most critical engineering teams responsible for developing and refining the core data ingestion and processing infrastructure that supports our entire platform. Your team will manage billions of cloud signals daily, ensuring scalability, reliability, and efficiency across Orca's architecture.Your leadership will guide a talented group of senior engineers, providing both technical and managerial direction while remaining actively involved in design and implementation. Together, you will make pivotal architectural decisions and advance our ingestion and processing frameworks to facilitate real-time data pipelines, enhance observability, and enable greater horizontal scalability.We seek an experienced Team Leader who is excited to make a foundational impact on Orca's next generation of cloud security solutions.

Speechify builds text-to-speech tools that help over 50 million people turn written content, PDFs, books, Google Docs, news articles, and websites, into audio. Our products span iOS, Android, Mac, Chrome, and web, and have earned recognition from Google (Chrome Extension of the Year) and Apple (2025 Design Award for Inclusivity). Our fully remote team brings together nearly 200 people from top companies like Amazon, Microsoft, and Google, as well as alumni from Stanford, Stripe, and Vercel. Speechify’s culture values technical excellence, clear communication, and strong results. We keep our structure flat: anyone can lead by showing impact. Role overview The Platform Software Engineer will join the team responsible for building and maintaining backend services that power Speechify’s products. This includes areas such as payments, analytics, subscriptions, and integrations with external APIs. The role involves shaping product decisions, improving user experience, and working closely with other teams to support our growth. What you will do Design, build, and maintain APIs, including the public TTS API and internal APIs for payments, subscriptions, authentication, and consumption tracking, balancing business needs and scalability. Own and improve the backend API ecosystem, focusing on performance and long-term maintainability. Contribute to B2B solutions, especially around customization and integration for enterprise clients. Work with cross-functional teams to ensure backend architecture supports product goals and delivers a strong user experience. Interview process The interview process includes several technical interviews, usually completed within one week. Location This is a remote position based in Jerusalem, Israel.

Join our team at CyberArk as we develop essential infrastructure to safeguard AI agents, focusing on their identities, access behaviors, and interactions with sensitive systems and data.This role involves creating smart, adaptive solutions for ephemeral access control, secrets management, and agent-user identity tailored to the evolving agent ecosystem.As a Staff Software Engineer, you will take charge of these pivotal systems, architecting and executing methods for agents to establish their identity, receive dynamic access, interact securely with sensitive systems, and maintain verifiable audit trails. You will influence long-term architectural decisions, foresee technical challenges, and enhance systems that bridge both machine- and human-oriented workflows.This unique opportunity allows you to blend hands-on engineering with technical leadership—crafting essential code, mentoring fellow engineers, sharing insights, and promoting best practices—all while building a robust platform at the forefront of AI, identity, and security.

Who is Nexxen? At Nexxen, we revolutionize advertising through a flexible, data-driven approach. Our innovative technology empowers advertisers, agencies, publishers, and broadcasters globally to leverage data and advanced TV in ways that resonate with their goals. Central to our offerings is a robust technology stack, featuring both a demand-side platform (DSP) and a supply-side platform (SSP), all anchored by the Nexxen Data Platform.Why become part of Nexxen? With a presence that spans the globe, you can join a dynamic team dedicated to reshaping the advertising landscape with creative, adaptable, and integrated solutions. Our employees embody the Nexxen Way, rooted in the 3Cs: Customer Centricity, a Curious Mindset, and Collaborative Spirit without Ego.Your Safety is Our PriorityWe prioritize the well-being of all current and future team members at Nexxen. Given the rise in online scams and fraudulent job postings, we urge candidates to exercise caution. Nexxen will never ask for payment as part of the hiring process or endorse dubious financial schemes. If you encounter suspicious job offers or communications claiming to be from Nexxen, please contact us at infosec@nexxen.com to confirm their authenticity. Your trust is paramount to us. Stay informed and safe.Nexxen Fraud Alert and Notice: Protect Yourself from Impersonation and Fraudulent ActivityWe are seeking a Senior Platform AI Engineer to join our AI Engineering Group in Tel Aviv. This role is pivotal in crafting the foundational AI infrastructure and agentic frameworks that will drive the next generation of AI functionalities across Nexxen’s product suite.ResponsibilitiesDesign and develop LLM-based platform capabilities utilized across various products.Architect and implement agentic systems (including multi-agent workflows, tool usage, and orchestration layers).Create and deploy innovative AI-driven solutions to enhance platform capabilities.Address complex business challenges using AI systems, beyond mere APIs.Establish and uphold best practices, standards, and patterns within the engineering team.

About the RoleJoin us at root as we revolutionize software security with our pioneering autonomous AI platform. Our technology automatically identifies, rectifies, and validates software vulnerabilities, performing these tasks end-to-end and at scale. Imagine AI agents that seamlessly update dependencies, modify Dockerfiles, rebuild Go binaries with patched versions, and validate everything autonomously. This is an intellectually challenging and highly technical role where you will design, implement, and scale AI agent systems for real-world codebases. You will be at the confluence of backend engineering, AI systems, and application security, crafting agents, context pipelines, and evaluation frameworks that enable autonomous reasoning in production environments.What You’ll DoDesign and develop AI agents from the ground up to autonomously detect, repair, and validate vulnerable components.Establish and maintain scalable infrastructure for agent operations [AIOps], focusing on context management, evaluations, and orchestration.Create collaborative workflows that empower multiple agents to work together and reason collectively.Build tools and utilities that enhance agent capabilities (e.g., image inspection, diff generation, static analysis).Implement evaluation and performance metrics to ensure agent reliability and accuracy.Develop hybrid and vector database applications for efficient retrieval and context management.Integrate AI applications such as MCP-based systems, chat interfaces, and standalone utilities.Ensure all experiments are instrumented with tracing, observability, and structured metrics for reproducibility.

HoneyBook builds an AI-powered platform for service-based entrepreneurs, helping independent professionals manage every stage of their business. From lead generation and client communication to project booking and payment processing, HoneyBook’s tools are designed to support growth and free up time for what matters most. Since 2013, the platform has handled more than 25 million client interactions and processed over $12 billion in transactions. The company’s culture centers on five values: collaboration, feedback, ownership, a growth mindset, and inclusivity. HoneyBook welcomes applicants from varied backgrounds who thrive in curious, evolving environments, even if every box isn’t checked. Team Focus: Financial Infrastructure This team develops and maintains the financial systems behind HoneyBook’s platform. Their work ensures every transaction, from checkout to payout, runs reliably, scales smoothly, and stays secure. The goal: safe, efficient financial interactions for every user. What You’ll Do Design and build backend systems that power HoneyBook’s financial transactions Create resilient, observable services to process funds securely and accurately at scale Work closely with engineering, product, member experience, and operations teams Contribute to the evolution of HoneyBook’s financial infrastructure and offerings Location This position is based in Tel Aviv.

Join CyberArk as a Senior Software Engineer specializing in our cutting-edge Data & AI Platform. In this pivotal role, you will lead the design, development, and implementation of robust software solutions that leverage artificial intelligence and data analytics to enhance our security products. You will collaborate with cross-functional teams to drive innovation and deliver high-performance applications.

Join GitLab as a Staff Backend Engineer specializing in Composition Analysis. In this role, you will have the opportunity to contribute to our mission of delivering the best DevOps platform in the industry. You will work collaboratively with a talented team, focusing on backend engineering, to enhance our products and services.

At Loora, we are dedicated to transforming the educational landscape and eliminating language barriers through our innovative AI solutions. We have created the first-ever personal AI English tutor, designed to engage users in conversation, provide instant feedback on their English skills, and guide them towards fluency.We are seeking a Staff Backend Developer who will play a pivotal role in shaping the architecture and development of our AI-driven language learning platform. You will be responsible for designing and implementing backend systems that will touch the lives of millions of learners globally. Your work will involve architecting scalable services that enable real-time AI interactions, ensuring optimal performance and reliability while laying the groundwork for future language learning features.Key Responsibilities:Design, develop, and maintain high-performance backend services and APIs (REST and gRPC) to support AI-driven conversational experiences.Create and enhance asynchronous Python applications capable of processing real-time audio/text at scale.Ensure seamless, low-latency integration between mobile and web clients with our AI backend platform.Lead technical decisions regarding system architecture, emphasizing low latency and fault-tolerance.Collaborate with AI/ML, mobile, DevOps, and product teams to provide comprehensive solutions that enhance user experience.Engage in CI/CD workflows to facilitate smooth deployments and uphold high code quality standards.Promote engineering best practices and mentor team members to foster a world-class engineering culture.Optimize system performance and resource utilization, maintaining reliability SLAs for our expanding user base.Qualifications:At least 8 years of experience in designing and developing scalable, distributed backend systems in modern programming languages (expertise in Python is highly valued).Extensive knowledge of Python concurrency and execution models (WSGI, ASGI, asyncio, multiprocessing, threading, GIL).Demonstrated ability to build production-ready asynchronous Python applications that support high-volume traffic.Strong experience with Pydantic and FastAPI in live environments.Proficient in designing and implementing microservices architectures, ensuring scalability and reliability.Familiarity with cloud services (AWS, GCP, Azure) preferred.Strong problem-solving skills and a team-oriented mindset.

About BrandlightBrandlight is at the forefront of redefining enterprise AI visibility. Our platform empowers premier brands to effectively understand, manage, and enhance their presence in the evolving landscape of AI-driven search, commerce, and advertising.As the AI sector rapidly matures into a multi-trillion-dollar marketing avenue, Brandlight is pioneering the frameworks that determine how brands are discovered, trusted, and chosen by consumers.Become a part of our innovative team and contribute to developing next-generation tools that are set to transform brand management in an AI-centric world.About the RoleAs a Senior Backend Engineer at Brandlight, you will play a pivotal role in shaping our backend infrastructure. You will take charge of designing and implementing systems capable of managing billions of data points daily while ensuring high reliability and real-time visibility.This position is ideal for an individual who thrives in complex environments, can swiftly develop solutions from the ground up, and possesses a strong focus on automation to create scalable production-grade infrastructure.ResponsibilitiesDevelop and manage backend infrastructure handling billions of data points daily.Design services that are scalable, reliable, automated, and observable.Implement daily monitoring systems that uphold stringent SLAs.Create parallel execution systems to optimize processing and reporting times.Provide real-time monitoring and alerts for system and data health.Minimize manual efforts through automation and improved tooling.Oversee the delivery process end-to-end from architecture to production and performance.RequirementsMinimum of 7 years of experience in building scalable production systems.7+ years of proficiency in Python, with a focus on writing clean and maintainable backend code.Proven track record of building infrastructure from scratch and managing it end-to-end.Experience in independently launching backend products from design to production.Familiarity with high-throughput data collection and monitoring systems.An automation-first mindset that focuses on reducing manual work through effective tools and processes.Excellent communication skills and the ability to drive execution across teams.A curious, low-ego autodidact with demonstrated leadership capabilities.Why Join Us?At Brandlight, you will not just be part of a team; you will be a key player in shaping a new category in the industry. Your contributions will have a lasting impact on the future of brand management in an AI-driven marketplace.