We design for capability, resilience, and scrutiny under real-world constraints, pioneering quantum-resistant security that defends against today's AI-driven threats and tomorrow's quantum computing revolution.
QuantumViva is contrarian: we start endpoint first, local first, and audit first in a cloud SaaS world. Where the default is connectivity and convenience, we choose capability, local resilience, transparent forensics, and scrutiny under real-world constraints.
Hybrid classical and post-quantum cryptography ensures your data remains secure today and in the quantum era.
Our core engine (QVCORE) is designed for readiness to submit for regulatory compliance.
Standalone, single-user, no cloud dependency. Security lives in the application, a genuinely contrarian stance in a SaaS-soaked world, and a principled one.
"QVU is PGP for the post-quantum era — category-defining, designed for regulatory alignment, built for a market waking up to quantum risk. It reimagines email, chat, and file management for a secure future." — Brent Smith, CEO & Co-Founder
CEO & Co-Founder
MBA · MSc Computing
Raised €52m in foreign direct investment and scaled the company from 0 to 26,000 customers and 100 staff.
Designed and launched globally distributed audiophile products, bringing hardware from concept to market across multiple continents.
MSc in Computing (DCU), MBA (Kingston), and multiple certifications spanning quantum computing, cryptography, AI/ML, and blockchain.
Led technology programmes across telecoms, satellite, broadcast, and public sector — including ultra-secure government data ETL projects, complex EU PHARE projects, and roles requiring deep security clearances.
Co-Founder · Board Director
MSc Computing · Oxford Saïd Business School
Built and led a cloud technology solutions company, delivering enterprise-grade transformation programmes for clients across multiple sectors.
Formerly a Partner and Global CDO at Ernst & Young, responsible for delivery excellence across one of the world's largest professional services firms.
MSc in Computing (Open University, 2002) and executive education at the University of Oxford Saïd Business School.
Led technology programmes across more than 80 countries, spanning multiple technologies, commercial strategy, and business transformation disciplines.
Co-Founder · Commercial Director
UCD BComm · Banking & Finance
Built an AI-driven tax intelligence platform, applying data-driven product thinking to a highly regulated compliance domain.
Global Compliance & Reporting at TFO, Implementation & Delivery Manager at EY, and Head of Business Development at CyberSecurity Brain.
UCD BComm in Banking & Finance, with certificates in IoT, AI, Applied AI, and AI Product Management.
Professional depth spanning compliance obligations, product marketing, product ideation, go-to-market strategy, data-driven solutions, and commercial engagement.
Organizations face unprecedented security challenges from two converging forces that demand immediate action.
AI-enabled threat actors are automating vulnerability discovery, personalised phishing, and real-time attack adaptation.
Large-scale quantum computers capable of breaking current encryption schemes are expected to emerge by 2035.
NIST and ENISA recommend hybrid classical/PQC as the dominant transition pattern this decade. We use all available network security — we just don't rely on it.
X25519 (Hybrid KEM) + ML-KEM-768 (post-quantum) for secure key encapsulation
Ed25519 (Hybrid) + ML-DSA-65 (post-quantum) for authentication
AES-256-GCM for maximum data protection
ASiC-E (ETSI standard) for signed, timestamped file transfers
PGP for the post-quantum era
QVU is designed to be the first user-centric tool that puts quantum-resistant security in the hands of every Windows user. QVU is the first integrated Windows 11 desktop application combining vault, communications, and endpoint monitoring with hybrid classical/post-quantum cryptography.
We're building a quantum-resilient secure vault and communications platform from a rigorous four-layer architecture, working from a substantial SRS, protocol baseline, and engineering resource register. Deep technical ownership, specification-driven delivery, and clear documentation are non-negotiable.
Technical Lead
Lead the build of QVCore — the native security engine. Own Layer 1 architecture and implementation, SQLCipher-backed storage, cryptographic engineering, and the technical standards across the four-layer model. Manage and mentor engineers as the team grows.
Collaborative Contributor
Work alongside the Technical Lead to build QVCore features and storage integrations. A strong, collaborative role that rewards clear documentation, careful delivery against specification, and dependable engineering — without needing to own architecture decisions independently.
IPC/FFI Specialist
Own the boundary between QVCore and the desktop client. Design and implement the Layer 2 IPC/FFI gateway that makes the native core safely consumable by higher layers through a stable, memory-safe, testable contract — with hands-on cryptographic experience at the boundary.
Desktop UI Owner
Own the QVU desktop UI shell. Turn written requirements and designs into a secure, responsive PySide6 client that treats QVCore as a service — without owning secrets or protocol state. Help establish the UI patterns and documentation the desktop team will grow from.
Public Web & Integrations
Own QuantumViva's public website and the web-based integration surface connecting our self-hosted business systems to the outside world — including KYC/AML intake, ERPNext-to-QVB identity flows, Stripe billing, and customer support infrastructure.
Self-Hosted Infrastructure
Build, self-host, and run QuantumViva's collaboration and business platform on Blacknight-hosted infrastructure. Own the entire self-hosted operational stack — Forgejo, Nextcloud Hub, NextERP — from the server up. Our internal tooling choices are part of our security posture and threat model.
Not a perfect match? We'd still like to hear from you.
info@quantumviva.comJoin the quantum-resistant revolution and protect your organization against tomorrow's threats.
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