Systems we've built, and how.

• Payments · US

  18 payment processors behind one API

  An event-driven orchestration platform covering charges, 3-D Secure, disputes, payouts, identity checks and ledgering — which stayed online through a DDoS attack.

  Event-driven backend · Relational database · Message queue · Containerized deployment · Cloud-native infrastructure

• Fintech + AI

  A compliant wallet platform, live in six months

  USD and crypto wallets with transfers, swaps and cash-out. Identity checks gate every money movement, and AML triage runs on a self-hosted LLM with a human making every decision.

  Event-driven backend · Relational database · Message queue · Frontend application layer · Cloud-native infrastructure

• Crypto · Consumer

  A creator platform paid in stablecoins

  Subscriptions and pay-per-view content where fans pay in USDT across two chains, creators mint their work as NFTs on an L2, and payouts run on both fiat and crypto rails.

  Event-driven backend · Relational and document databases · Search infrastructure · Frontend application layer · ERC-721 and ERC-20 smart contracts

• Marketplace · Consumer

  A trust-first marketplace in one codebase

  Mobile app, API, admin panel and cloud infrastructure in a single repository, with real-time chat, verified identities and search by distance.

  Mobile application layer · Event-driven backend · Relational database · Infrastructure as code · Cloud-native deployment

• E-commerce · Multi-marketplace

  One catalogue, twelve Amazon marketplaces

  A platform that lets vendors publish one catalogue across twelve Amazon marketplaces and keeps price, stock and orders in sync, rebuilt from cron scripts into an event-driven service while migrating APIs under it.

  Event-driven backend · Command bus · Relational database · Background worker · Domain-driven architecture

• Payments · Events

  Registration payments reconciled across two rails

  A white-label registration and payment platform used for events at the top of their disciplines — including a World Rally Championship round and Tour de France events — that collects money by card online and by cash at physical payment-network counters, then reconciles both rails automatically against registrations.

  Event-driven backend · Scheduled batch jobs · Relational database · FTP file ingestion · Frontend application layer

• Marketplace · Consumer

  A two-sided local marketplace, redeemed by QR

  Merchants publish geo-targeted offers from a back office; consumers browse them in a mobile app and redeem them in store by QR code, validated at the counter.

  Mobile application layer · Relational database · Background worker · Image pipeline · Push notification service

• Marketplace · Live events

  A ticket marketplace where the crowd sets the price

  A ticket marketplace where general-admission blocks sell by timed auction instead of a fixed price, with bids, price and outcome pushed to every watcher in real time and opened and closed on a schedule with no one at the controls.

  Real-time event push · Scheduled job orchestration · Relational database · Payment gateway integration · Data-driven SVG rendering

• Financial services · Consumer web

  Citi Private Pass — a responsive benefits site in 2012

  The complete website for Citi Private Pass, Citi's cardholder benefits programme — presale concert and event offers plus dining and lifestyle benefits, a custom CMS for the marketing team to curate them, and a live event feed to keep the catalogue current.

  Content publishing pipeline · XML feed integration · Automated data ingestion · Relational database · Frontend application layer

• Payments · Consumer

  Reconciling a school's money to the cent

  A crowdfunding platform for US school parent-teacher associations — schools raise money for projects with tiered rewards, donors pay by card as guests or signed in, and every donation reconciles to gross, fees, platform cut and net settlement.

  Payment gateway integration · Relational database · Fraud signal ingestion · Financial reconciliation reporting · Frontend application layer

• Civic tech · Government

  When a phone report becomes a court citation

  A US civic-technology programme where trained volunteers report disabled-parking violations from a phone, and those reports move through a government review process into real, enforceable citations — with the resulting fines directed to accessibility charities.

  Event-driven backend · Relational database · Secure file transfer integration · Cryptographic evidence pipeline · Multi-tenant administration layer

// client relationships

Long-standing engagements

These are real, named clients we've worked with since 2000 — the relationships that built this company. Most of our recent platform work sits above as anonymized case studies, under NDA, which is why you won't see a client name next to most of it.

• Citi Private Pass

  Built the complete Private Pass website.

• Pepsi

  Developed video games.

• Raindrip

  Built the full website and its backend.

• Amtrak

  Managed electronic communications.

• Palmers

  Built all of their websites.

• Ortega

  Built all of their websites.

• Sea Cuisine

  Built all of their websites.

• NDS

• Mediamax

• Railex

• Connex Intl.

• Indusparquet

• SMP