Founder & CEO
Inventor • AI Architect
• Technology Pioneer
David has spent his career turning early-stage technology into scalable enterprise platforms. Founding member to grow VC-backed startup from zero revenue to the #1 global mobile productivity app acquired by Google, later leading a $1B+ digital P&L at T-Mobile/MetroPCS. His work spans 0→1 GTM strategy, AI decision infrastructure, enterprise operations, and early agentic AI automation. Recipient of the 2026 AI NEXT Award for Excellence in AI & Technology Leadership. Pioneered the Telco's first global agentic AI customer support. Launched Texas’s first energy comparison platform and a top-10 global travel marketplace. Multiple patents for first P&C Insurance realtime property valuations and Artificial Intelligence (AI) systems.
EVP, Strategic Partnerships & Global Channels
Global Operations • Supply Chain
• Enterprise Scale
Chris is a global operations executive with 26 years of experience leading complex business, supply chain, procurement, and operational transformation initiatives across international markets. His career spans humanitarian operations, international development, strategic sourcing, complex contracts, enterprise partnerships, financial stewardship, and large-scale operational optimization. Chris brings the discipline of a global operator and the commercial judgment of an enterprise growth leader. His background includes an MBA in Supply Chain Management and advanced executive education through Harvard Business School and MIT.
Director, Strategic Partners &
Enterprise Growth
Fintech SaaS • Enterprise Accounts
• Strategic Growth
Nate brings 15+ years of experience across finance, accounting, sales, fintech SaaS, and enterprise customer relationships. His career includes national account leadership at Global Payments, with expanded responsibility across B2B direct, integrated, and ERP-embedded payment solutions. He specializes in helping organizations evaluate technology that reduces operating cost, improves business processes, and strengthens competitive execution. As an early H9AI team member, Nate has supported strategic partnerships, customer engagement, and enterprise market development from the ground up.
CTO
Backend Architecture • Python
• Secure Systems
Dmytro is a performance-oriented software engineer specializing in Python backend systems, scalable web services, and secure microservice architecture. His experience includes leading development teams, building multi-region AI-powered advertising infrastructure, and developing backend systems for 5G network management and geolocation platforms. He brings deep technical strength across FastAPI, Django REST, Celery, RabbitMQ, Redis, Docker, authentication systems, cloud infrastructure, and test-driven backend development. Recognized for reliability, code quality, and engineering discipline, Dmytro helps turn complex technical requirements into durable, production-ready systems.
David Brennan
Chris Mericle
Anton Synieokyi
Software Developer
Frontend Engineering
• Web Applications • Automation
Anton is a frontend engineer focused on building modern, user-friendly web applications that simplify complex workflows and improve operational efficiency. His experience spans interface development, system integration, business process automation, and translating technical requirements into clean, usable digital experiences. He brings practical engineering discipline, strong product awareness, and a focus on creating intuitive software that helps teams work faster, smarter, and with greater confidence.
Kate supports partnership development, client communication, delivery coordination, and project execution across customer and technical teams. She helps ensure engagements stay organized, properly resourced, on schedule, and aligned to budget expectations from kickoff through delivery. Her role brings structure, accountability, and relationship continuity to complex technology initiatives where successful outcomes depend on clear communication, coordinated execution, and reliable follow-through.
Kate Prysiazhna
Anton Siarheyenkau
Dmytro Tymkiv
Nathanael “Nate” Ramsdell
Partnership Manager
Software Developer
Partnerships • Resourcing
• Project Execution
Frontend Engineering • JavaScript
• Scalable Web Apps
Anton brings 8+ years of experience building modern web applications with a focus on performance, maintainability, and clean user experiences. His technical background includes JavaScript, Ember.js, React.js, Nest.js, and TypeScript, with hands-on experience creating scalable interfaces and integrated application workflows. He specializes in turning complex product requirements into reliable, user-friendly software that supports automation, operational efficiency, and long-term platform growth.
Oleksandr Valovoi
Software Developer
Full-Stack Delivery • Product Quality
• Team Mentorship
Oleksandr brings 8 years of software development experience delivering end-to-end product features from planning and architecture through release and post-launch support. His background includes customer incident resolution, technical interviews, mentoring junior and mid-level developers, and maintaining ownership across product quality and team collaboration. He combines hands-on engineering execution with strong delivery discipline, helping teams build reliable, maintainable software that performs well in real customer environments.
Nazarii leads delivery coordination across project workflows, technical teams, resource planning, and client-facing execution. He helps translate priorities into clear delivery plans, keeping teams aligned from discovery through implementation. His role brings operational discipline, communication structure, and execution reliability to complex technology engagements where timing, coordination, and follow-through matter.
Nazarii Vyshnytskyi
Delivery Manager
Project Delivery • Team Coordination
• Execution
Elnur Mammadov
Software Engineer
Distributed Systems • Backend Engineering • Platform Quality
Elnur brings 10 years of commercial software engineering experience with a strong focus on building reliable, maintainable, and high-quality systems. His background includes designing applications from the ground up, refactoring legacy platforms, improving existing software architecture, and solving the practical challenges of distributed systems. He combines deep technical execution with the ability to communicate clearly across technical and non-technical teams, helping turn complex requirements into stable, production-ready software.
© 2026 H9AI, LLC. All rights reserved.
All trademarks, service marks, trade names, and logos referenced herein are the property of their respective owners. References to such marks are for identification purposes only and do not imply any affiliation with or endorsement by the respective owners. Illustrative case study. Company profiles and quotes are fictional; scenarios and outcomes reflect representative enterprise implementations and NEXUS ADI™ capabilities.
NEXUS ADI™ an H9AI, LLC Company
