Go to home
w3solutionsw3solutions

03

Our work

Our latest projects

( Selected work )

Products we architected, built and shipped — real-time platforms, trading systems and marketplaces running in production today.

Hermatic home page — automated crypto trading with controls you can monitor
  • Hermatic live performance chart with today's profit and risk controls
  • Hermatic mobile app showing balance, open trades and PnL in real time
  • Hermatic onboarding — connecting an exchange with read-and-trade API keys

01

Hermatic

Automated crypto trading with controls you can monitor.

Hermatic connects to a trader's exchange with read-and-trade API permissions, runs configured strategies around the clock, and keeps withdrawal access out of scope entirely. We built the engine behind it: Go services executing across 11 chains, a Socket.IO and Server-Sent Events layer that pushes balances, open positions and PnL to the apps the moment they change, and BullMQ pipelines that keep every order, retry and digest in order.

Technologies

  • Go
  • Socket.IO
  • Real-time data
  • Server-Sent Events
  • Microservices
  • BullMQ
  • PostgreSQL
Our role
Architecture · Backend engineering · Real-time systems · Web
Year
2021 — present

Highlights

  • Funds never leave the user's exchange — read-and-trade API access only, withdrawal permissions never requested
  • Live balances, positions and PnL streamed over Socket.IO and Server-Sent Events, never polled
  • Automated execution across 11 supported chains, with pause and stop in a single tap
  • BullMQ pipelines behind every order, retry and daily digest, with replay after an exchange outage
Visit website
Vorbina home page — voice agents for your website, with a live call preview
  • Vorbina — creating an agent and sharing its call link in three steps
  • Vorbina pricing — per-minute voice tiers billed from a prepaid wallet

02

Vorbina

Your website's phone line, without the phone.

Vorbina gives any site a voice agent that answers in the browser, holds a real conversation and takes action through the customer's own APIs — booking, looking things up, updating records mid-call. We built the platform: the Node.js services behind agent configuration and connectors, and the PostgreSQL model that meters every call by the minute against a prepaid wallet, with duration, wait time, tool calls and exact cost on every conversation.

Technologies

  • Node.js
  • PostgreSQL
  • Real-time audio
  • Connector APIs
Our role
Architecture · Backend engineering · Billing · Web
Year
2025 — present

Highlights

  • Browser-native calls — no phone number, no call centre, nothing to install
  • Connectors let an agent call a customer endpoint mid-conversation and speak the result back
  • Per-minute metering against a prepaid wallet, with three voice tiers priced separately
  • Every call logged with duration, wait time, tool calls and exact cost, exportable per agent and per day
Visit website
Alpha Plug home page — automated BTC, Gold and stock day-trade reports
  • Alpha Plug report anatomy — annotated chart, sentiment, plan and trade levels
  • Alpha Plug pipeline — live data pulled and analysed every 15 minutes

03

Alpha Plug

Day-trade reports for BTC, Gold and stocks, on autopilot.

Every fifteen minutes Alpha Plug pulls fresh market candles, runs a deterministic analysis engine over them and publishes a complete day-trading report: an annotated chart, the sentiment behind the call, a short plain-English plan and the exact entry, stop and target. We built the Go engine that computes EMA, RSI, MACD, Bollinger, ATR and swing levels on schedule, and the Next.js dashboard that serves the reports free and without a sign-up.

Technologies

  • Go
  • Next.js
  • TypeScript
  • Scheduled pipelines
Our role
Architecture · Backend engineering · Frontend engineering
Year
2025 — present

Highlights

  • A full report for BTC, Gold and AAPL regenerated every 15 minutes, around the clock
  • Deterministic indicator engine in Go — EMA, RSI, MACD, Bollinger, ATR and swing levels
  • Entry, stop and target sized off live volatility, with the risk-to-reward stated up front
  • Free and sign-up free: the dashboard is public, and the analysis is labelled educational, not advice
Visit website
Sportya home page with the player, club, city and country counters
  • Sportya featured tournament calendar with events by level and location
  • Sportya club-side tools for managing events, courts and player engagement

04

Sportya

The amateur sport platform of 37,000 players.

Sportya runs amateur tennis, padel and multi-sport competition across four countries: a calendar of hundreds of events organised by playing level, online court booking in partner clubs, friendly-match matchmaking and a club-side operations product. We rebuilt it as a microservice platform — Node.js services over MongoDB, Kafka carrying registrations, draws and rankings between them, and a React and Next.js front end that keeps event draws and court availability live as they change.

Technologies

  • JavaScript
  • Node.js
  • MongoDB
  • Microservices
  • Kafka
  • Real-time data
  • Next.js
  • React
  • Tailwind CSS
Our role
Architecture · Backend engineering · Real-time systems · Frontend engineering
Year
2019 — 2024

Highlights

  • 37,000 players, 150 partner clubs and 650 planned events across Romania, Moldova, Bulgaria and Bahrain
  • Kafka event streams carrying registrations, draws, results and ranking recomputation between services
  • Live draws and court availability — the bracket on screen matches the bracket in the system
  • A separate club-side product for court inventory, event operations and player engagement
Visit website
Point Pickup home page — retail-branded same-day fulfilment and delivery
  • Point Pickup enterprise platform — end-to-end order management and tracking
  • Point Pickup flex-worker app used for pick, pack and delivery instructions

05

Point Pickup

Same-day fulfilment and delivery in all 50 states.

Point Pickup lets America's largest retailers keep their own brand on the last mile: customers order on the retailer's site, and a flex workforce picks, packs and delivers the same day. We worked on the platform behind it — PHP services over MySQL, split into microservices for order management, dispatch and driver payouts, with real-time tracking pushing driver position and order state from the flex-worker app to the retailer's dashboard.

Technologies

  • PHP
  • MySQL
  • Microservices
  • Real-time data
Our role
Backend engineering · Microservices · Real-time tracking
Year
2016 — 2021

Highlights

  • Same-day fulfilment and delivery coverage across all 50 US states
  • End-to-end order management from online purchase, through in-store pick and pack, to the doorstep
  • Live driver position and order state streamed from the flex-worker app to the enterprise dashboard
  • A flex-worker platform that grew past 450,000 registered drivers
Visit website

( Work with us )

Tell us what you are building.

Fixed quotes, replies within one business day, and a team that has shipped this before. Bring us the part of the system that worries you.

Let's discuss

( More about w3solutions )