I like making complicated things simpler. Sometimes that means untangling software that keeps a business running. Other times it means building a word game because the idea wouldn’t leave me alone.
$whoami Denis Martins Senior software engineer. Arsenal supporter. Usually planning the next trip.
$ls work/ projects/ notes/ life/
Try a command:
01 / Things I’ve made
Selected work
Things I’ve built, things I’m figuring out, and the occasional idea that got out of hand.
01The day jobAPIs, integrations and the platforms behind them, on Azure and AWS.+
BEHIND THE SCENES
RUNS ON THE CLOUD
Containers
Serverless functions
Message queues
Infrastructure as code
CI/CD pipelines
Monitoring & tracing
A simplified picture, not a production diagram
01 / ENGINEERING
Make the pieces work together.
Platform modernisation, third-party integrations, APIs and event-driven workflows, built and run in the cloud on Azure and AWS. The kind of engineering you notice most when it stops working. Next, I’m taking it to financial services at Transact.
Word Duel looks simple on the surface. Underneath, it’s a real-time multiplayer system where every move must be fair, even when two players act at once or a connection drops.
01
One source of truth
Each game room is a Cloudflare Durable Object that applies moves one at a time and pushes the new state to both players over WebSockets. Clients can display the game, but they cannot rewrite the room.
02
Rules that survive concurrency
Dictionary checks, exact letter changes, turn ownership, deadlines and previously used words are enforced together. A shared used-word set persists across rematches.
03
Computer opponents without shortcuts
The bot plays through the same server-side rules as a human. Easy, medium and hard modes vary think time and move strategy rather than bypassing validation.
04
The details matter
Server-defined turn deadlines driven by alarms, cleanup of idle rooms, dictionary-based word meanings, and idempotent match-result recording keep the experience consistent.
03Last One StandingA party game for 2–8 players: hold the button, let go on time, don’t be the worst.+
TIMER SHOWDOWN / THE REAL GAME
LobbyYour turnLast one standing
Try it here
00:00.00
Try to stop at exactly 5.00 seconds.
03 / GAME
Timing is everything.
Everyone holds a button and lets go on time. The worst attempt each round is knocked out until one player is left. Four game modes, a hidden-timer option, and Pass & Play for one shared phone. Try the five-second challenge in the preview.
I’m curious by nature. Sometimes that ends in a side project; other times it ends in a conversation, an unexpected destination or another idea I probably didn’t need.
01 / Match dayArsenal. Always.
02 / Somewhere elseMore stamps, fewer spreadsheets.
03 / The good stuffFood is part of the trip.
04 / The gymOne more rep.