Lorenzo Marfori

Tech Lead @ Closer

I write code, play video games and love tech

View my workRésumé

About

I'm a software engineer who loves building products end-to-end — from the database schema all the way to the pixels. Right now I'm building and maintaining the website and mobile app for Closer

Outside of work you'll find me tinkering with side projects, reading about systems design, and chasing the perfect developer setup. I care about clean code, fast feedback loops, and tools that get out of the way.

TypeScriptReactReact NativeNext.jsNode.jsBunReact NativePostgreSQLTailwind CSSPythonDockerAWSGit

Experience

  1. 2025 — Present

    Closer logo

    Head of Technology · Closer

    Lead engineer for the company. Building Closer from the ground up — a cross-platform app and the systems behind it. I own features across the mobile app, backend services, and the transactional email infrastructure.

    ReactReact NativeTypeScriptBunNext.jsExpoPostgreSQLDrizzle ORMtRPCBetter AuthStripeTailwind CSSshadcn/uiRadix UIFramer MotionTanStack QueryZodSupabaseTwilioResendReact EmailVercelEASMeta PixelGoogle Ads

  2. 2023 — 2026

    Day-One Enterprises logo

    Chief Technical Officer · Day-One Enterprises

    Created and maintained organization's website and systems. Engineered a remotely controlled web-based overlay system for esports broadcast. I've also produced and operated livestreams for big local tournaments.

    LuaShopifyReactNext.JsAWS RDSDiscordJSTailwindCSSTypeScriptAWS LambdaRiot API

  3. 2021 — 2023

    Blindspot Productions logo

    Technical Director · Blindspot Productions

    Started my career in esports production. I built and maintained custom web applications that focused on higher production value for live events.

    NodeJSSocket.IOReactFirebaseRiotAPI

  4. 2019-2020

    Uber logo

    Junior Developer · Uber

    Junior developer in charge of testing and maintaining backend admin systems.

    JavaPythonGoNode.jsCassandraMySQLRedis

  5. 2018 — 2019

    Spotify logo

    Junior Developer · Spotify

    Junior developer in charge of testing and maintaining Spotify's desktop application.

    C++JavaScriptHTMLCSS

Projects

Closer

Closer

The flagship app I'm building today — bringing people closer, built end to end.

React NativeBunPostgreSQL
Oasis Gaming

Oasis Gaming

The web presence for Oasis Gaming, a competitive esports organization.

Next.jsReactTailwind CSS

Remote Overlay Tool

A web-based production tool for data-driven overlays and graphics, controlled live by multiple people and casters.

ReactNode.jsSocket.IOTypeScript

Realtime API Driven Live Stream Overlay

A dynamic HUD and stream elements driven by realtime data from players and games via API.

ReactWebSocketsRiot APINode.js

Esports & Broadcast

Broadcast graphics, live overlays, and production systems I've built for esports tournaments. More on Behance.

SteelSeries Go For Glory

SteelSeries Go For Glory

Broadcast graphics package and live overlays for SteelSeries' Go For Glory Valorant Cup.

ValorantBroadcastLive Overlays
SteelSeries Prime Tournament PH

SteelSeries Prime Tournament PH

Broadcast design and on-stream graphics for the SteelSeries Prime tournament in the Philippines.

EsportsBroadcastMotion Graphics
Rift Stars Origins

Rift Stars Origins

League of Legends tournament broadcast package — overlays, transitions, and on-stream graphics.

League of LegendsBroadcastOverlays
KDR Valorant

KDR Valorant

Live broadcast overlay and graphics package for a Valorant competitive event.

ValorantBroadcastLive Overlays
Oasis Arena

Oasis Arena

Tournament broadcast identity and overlays for Oasis Gaming's Oasis Arena.

EsportsBroadcastBrand
GGEZ All-Star Invitational

GGEZ All-Star Invitational

Broadcast graphics and live overlays for the GGEZ All-Star Invitational.

EsportsBroadcastOverlays