About Me

Stephen Fisher - Professional Headshot

Stephen Fisher is Co-Founder, Chief Technology Officer, and Head of Engineering at Vigilis AI, an AI platform designed to empower every security professional to operate with real-time precision, confidence, and intelligence. His focus spans Product strategy, operations, R&D and delivery - from architecture, product design, AI-accelerated engineering, UI/UX design and data infrastructure, ensuring services and technology revolutionize customer experiences in the field while scaling securely in the cloud.

By merging AI innovation with human insight, Stephen is shaping a platform that transforms security operations into intelligent, adaptive systems that evolve with every shift, site, and decision. As founding engineer, he architected VigilisAI's complete multi-tenant platform leveraging voice-first conversational AI, speech recognition, natural language processing, Agentic workflows, computer vision, and generative AI—with privacy-focused architecture ensuring customer data isolation and security. Building human-centric AI that enhances judgment, accelerates decision-making, and strengthens protection across every layer of security operations.

His leadership at VigilisAI includes leading AI and technical strategy, product architecture and AI integration to enable real-time operational intelligence; designing scalable, secure systems that deliver performance and reliability under high-stakes conditions; collaborating with field teams and clients to align product development with real-world workflows; and building an agile engineering culture focused on precision, accountability, and innovation.

Stephen's broader work focuses on crafting AI experiences that amplify human creativity rather than replace it, and bridge the divides between different cultures, teams and companies. His expertise spans production AI/ML systems, LLMs, RAG architectures, distributed computing, and creating intuitive interfaces that make sophisticated technology accessible to everyone.

With 30 years of experience building groundbreaking AI products from inception to billions in annual revenue, Stephen has pioneered and delivered technologies that fundamentally reshape how humans interact with technology. His innovations include developing text-to-speech systems that gave voice to Parkinson's patients, creating machine learning algorithms for early breast cancer detection, and architecting handwriting recognition that defined touch computing. At Microsoft Research, Windows and Office, he launched speech, voice recognition, digital ink and handwriting recognition platforms that revolutionized the way millions of users work with their personal computers.

Stephen has founded multiple startups and built entire organizations from scratch across Microsoft, F5 Networks, Cray, HPE, and his own ventures, transforming bold visions into market-defining products. At HPE/Cray, he led architectural design and product delivery for seven of the world's top ten supercomputers, including exascale systems with Slingshot interconnect technology, powering breakthrough research in nuclear physics, climate modeling, genetic sequencing, and weather prediction. At F5 Networks, he created the cloud networking division that redefined how enterprises deploy applications across hybrid infrastructures through Software-Defined Networking innovations. At Polyverse, he built AI systems for cybersecurity and code intelligence that protect critical infrastructure and commercial IP.

His leadership philosophy centers on building high-performance organizations that balance relentless innovation with sustainable talent growth. Stephen has repeatedly assembled and inspired diverse teams across Engineering, Operations, Product Management, and Solution Architecture to deliver mission-critical systems for government, healthcare, education, and enterprise clients. His B2B platforms have enabled thousands of developers and solution partners to build transformative applications on emerging technologies.

An inventor on multiple patents and alumnus of Central Washington University's Computer Science and Artificial Intelligence program, Stephen brings the same intensity to urban gardening, sustainable farming and wilderness exploration as he does to technology innovation. When not architecting the future of human-AI collaboration, you'll find him in the garden, the forest, endurance biking through mountain passes, or backpacking with his family through hidden corners of the world.

Stephen Fisher in nature

Stephen's passion for exploration extends beyond technology into the world's diverse cultures and landscapes. Whether it's discovering the architectural marvels of European cities, connecting with international teams, or finding inspiration in the intersection of technology and human creativity across different cultures, he brings this global perspective to every project and collaboration.

Stephen Fisher in Europe

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