Selected work
Privorum has contributed to products, platforms, and open-source protocols across AI, analytics, trading infrastructure, backend systems, and blockchain-native software. Engagements below are grouped by type — direct clients, blockchain protocols, agency placements, advisory, and community or open-source work — so each one is read in the right context.
The work we can show publicly is a partial view of what Privorum delivers. Client names, case studies, and technical detail are available under NDA once a conversation is underway.
Selected companies and platforms.
Organised by engagement type — direct clients first, then protocols, agencies that placed us, advisory, and community work.
Direct clients
Product and platform engagements — founder, fractional-CTO, and senior-engineering work delivered directly.
Founder engagement. Led end-to-end delivery of the first digital marketplace for physical agricultural commodities — wheat, corn, soy, palm oil and other bulk cargoes — building the real-time matching engine, low-latency APIs, and streaming data pipelines from architecture through MVP and closed beta with 35 major agri-trading companies. Vosbor raised a $7M seed round led by Lux Capital with Market One Capital, FJ Labs, 7percent Ventures, Athos Capital and Nucleus Capital, plus strategic co-investment from Chris Mahoney (former CEO, Glencore Agriculture) and Soren Schroder (former CEO, Bunge).
Led core engineering across backend and frontend for a high-throughput digital-asset matching and market-data platform, owning architecture, scale, reliability and real-time SLAs.
Architected an AI-native data platform that automates the data-scientist role — RAG pipelines, sub-agent orchestration, guarded LLM integration and automated model training, validation and deployment. Genie AI is an NVIDIA Inception Program company backed by Alpha Sigma Capital.
AI-native signal-filtering and trade-management platform for swing and position traders. Every TradingView or TrendSpider alert is evaluated against funding rates, sentiment, technicals, open positions and the economic calendar before execution, with active trailing-stop, breakeven and exit logic across IG, Alpaca, Phemex, Kraken, Binance and Hydra.
AI-powered career coaching platform that prepares professionals for high-stakes moments — interviews, performance reviews, negotiations — with personalised guidance and scenario practice.
Built a real-time crypto and NFT analytics platform combining on-chain data, market signals and social sentiment from more than one million data sources, with SLA-backed endpoints, data-quality checks and alerting. Backed by BIP Ventures, Ghaf Capital and Panoramic Ventures.
Dutch circular-economy platform that rewards consumers for using reusable cups at participating cafés — QR-registered cups, automated impact tracking, and a loyalty layer that turns packaging reuse into a consumer product.
One of Europe's largest holiday-review portals, aggregating millions of traveller reviews and booking paths across hotels, resorts and campsites. Part of the Vakanties.nl group.
Owned full-stack development of high-performance web services and UIs for the collectibles price-research platform, with CI/CD, IaC and automated testing for predictable releases.
Delivered an NFT marketplace with secure payment flows, content-rights management and a React SPA. Owned service hardening, access control and production support.
Owned backend architecture for content and data products — Elasticsearch, relational stores, REST APIs, caching, staging and blue-green deploys with strong SLA adherence.
Delivered SOA integrations enabling reliable communication between enterprise systems, with schema governance and contract testing across JBoss, Apache Camel and CXF.
Created reusable React component libraries and optimised high-throughput endpoints for the leading Dutch consumer weather service, with caching and queueing for low-latency experiences.
Built an OpenRTB-based bid switch for real-time video advertising — low latency, fault tolerance, profiling and canary releases with operational transparency.
Developed microservices for payments and booking with resilience, observability, scalability and AWS deployment automation. Owned service SLOs and on-call playbooks.
Backend engineering and data work for the DACH region's leading hotel-review and package-holiday platform, serving millions of travellers.
Developed the Product Data Service for high availability and real-time betting data. Led test architecture and CI, partnering with platform teams on reliability and scale.
Led development of the Customer Centre application managing worldwide computer leases. Drove performance tuning, release readiness and incident reduction against DB2 and MQ.
Blockchain protocols
Protocol-level engineering and operations. Polkadot and Cosmos ecosystem work was delivered through an engagement with ChainSafe Systems.
Contributed to go-ethereum, the official Go implementation of the Ethereum protocol — reviewed upstream contributions to blockchain functionality and performance.
Heterogeneous multi-chain protocol where parachains share the security of a central Relay Chain. Privorum contributed to ecosystem components during the ChainSafe engagement.
The "Internet of Blockchains" — sovereign chains built with the Cosmos SDK and CometBFT consensus, interoperating via IBC. Privorum worked across Cosmos during ChainSafe and later built Polkadot ↔ Cosmos IBC bridge components at Composable Finance.
Contributed to privacy-preserving distributed protocols and secure transaction flows — performance tuning, code quality, test coverage and formalised benchmarks across core services.
Infrastructure architecture and operations for the HydraDX omnipool (Polkadot parachain) — multi-cluster high availability, monitoring, on-call runbooks and automated rollouts across test, pre-prod and production.
Extended the HydraDX infrastructure platform to Basilisk (Kusama sister chain), with shared observability and release pipelines across both networks.
Built cross-ecosystem messaging and data movement for the Picasso parachain, including Cosmos ↔ Polkadot IBC bridge components. The project has since wound down.
Led development of a distributed platform with consensus, API services and operational tooling. Integrated frontend applications and CI/CD for production readiness.
Designed and built core platform components including wallets and mobile clients. Owned release pipelines, cross-platform build quality and cross-protocol interoperability.
Agency engagements
Delivery and staffing partners who placed Privorum on specific client engagements. The end clients are listed in their own sections above.
Business intelligence, data and analytics delivery partner in the Netherlands. Placed Privorum on the Smilo blockchain engagement.
Specialist staffing and delivery partner for technology engagements in the UK and continental Europe. Placed Privorum on the DTG engagement.
Dutch IT delivery partner specialising in development and testing engagements across enterprise clients. Placed Privorum on the Bookerzzz and HolidayCheck engagements.
Advisory
Board-level and technical advisory engagements.
Community & open source
Non-profit community work and open-source projects.
Dutch non-profit stewarding the Smilo hybrid blockchain — a public/private smart-contract network giving individuals control of their personal data through a mobile light-node data wallet. The Foundation coordinates the open-source contributor community behind Smilo's permissionless and permissioned PoS/PoA consensus options, which adapt battle-tested algorithms (Clique, Tendermint DAO, Istanbul DAO, Sport, Sport DAO) and build on prior work from Ethereum, Clearmatics, Etherzero and JPMorgan Chase.
Non-profit Brazilian Java User Group — one of the world's largest — holding an elected seat on the Java Community Process Executive Committee. Thomas Modeneis serves as a board member and JCP representative, contributing to Java core specifications and advocating for community-driven standards.
Open-source, self-hostable commenting engine and content API — a privacy-friendly alternative to Disqus for blogs and static sites.
Additional engagements are under NDA and available on request.