Angelina Builes

Gameplay & live-ops engineer · Roblox (Luau) · UEFN/Verse · Unity/C# · QA lead

Medellín, Colombia · Remote (UTC-5, full overlap with US Eastern Time) · Spanish (native) & English (professional)

I build the live systems a game runs on once it’s public — economy, gacha, purchases, progression and save data — and I take them from spec to release. Publishing my own titles since 2019 and building client work on Roblox, UEFN and Unity since 2022, usually as part of a small team. Co-founder of Dragonark Studios, where I lead development and QA.

Contact me LinkedIn GitHub itch.io Fiverr Studio portfolio

Systems I have shipped

Engines Roblox / Luau · UEFN / Verse · Unity / C# · Unreal Engine
Practice Live-ops systems · F2P economy design · Analytics & FTUE · VR / AR · Game QA
Process Git / GitHub · Jira · Agile / Scrum

Selected Work

Seven projects, and exactly what I built in each one.

World Cup TGC

Live on Roblox · Sunset Games Studio · 2026

Role: Roblox developer (Luau) — server-side systems
Built: A full live-ops layer for a football card-collecting game: coin economy with sources/sinks analytics, pack gacha with pity counters, in-game purchases with receipt idempotency, album pass, daily rewards, idle and offline income with AFK caps, cosmetics, badges and referrals — plus a multi-phase onboarding tutorial with funnel metrics.

RobloxLuauDataStoreLive-ops

Play it on Roblox →

Trident X Jungle

UEFN · worldwide brand event for Trident (Mondelez)

Role: Lead developer & level designer — also led QA
Built: A custom Fortnite island with four interconnected minigames — a time-trial race, an escape room, parkour challenges and a final boss battle against a mad scientist and his minions — tying mechanics and progression to the narrative goal of recovering the Formula X. I ran the full development and level design, then led the testing that kept the island stable through a worldwide event.

UEFNVerseLevel designQA

Watch the video →

Ecovilla 4D

Multi-platform XR ecosystem · sustainable housing · with Ecopetrol & UPB

Role: Developer — the entire codebase
Built: Several interconnected experiences around one sustainable house of the future: five web augmented reality apps opened from a QR code with no app download, two VR applications (a 1:1 replica of the house and a guided meditation), an interactive mobile web journey whose minigames explained how the ecovilla works, a promotional film built in Unreal Engine, and a tablet app with 3D visualization and real-time effects. I also built its AI assistant, running both on the device and on the OpenAI API, to answer visitors’ questions.

UnityUnreal EngineWebARVROpenAI API

Play the web version → Watch the video →

More work

Fortnite Creative brand islands — QA lead

UEFN · Domino’s, The General, Twitch, Hasbro, Mattel, Bandai Namco, TurboTax

QA lead & consultant

Test plans and quality gates for live branded islands: Domino’s Red vs Blue (team deathmatch with restaurant capture, power-ups, progression and achievements), Road Test Royale for The General (timing and penalty systems, three locations, vehicle unlocks), and The Glitch Zone Wars for Twitch (16-player squads, objective rounds, random weapon balance, XP and server stability). Functional, balance and stability testing, plus two-stage fix verification before every client delivery.

UEFNTest plansLive sessionsBrand compliance

See an island →

Rooftop Visa

VRChat · virtual venue for Visa events and product launches

Developer & QA lead

An immersive virtual space for Visa to host live events: I optimized the 3D assets and scene performance, refined the interactive systems, and ran the testing that kept the venue stable and smooth with an audience inside it.

VRChatUnityOptimizationQA

Watch the video →

Baby Fresh — Sueños de Colores

Physical-digital installation · live exhibition

Developer — physical-to-digital systems

Children coloured a paper bear, placed it into a playful “oven” installation, and watched their own drawing come alive in a shared virtual world on a big screen. I built the systems connecting the physical interaction to the real-time digital result, making sure the translation was faithful and the whole thing stayed stable in front of a live audience of small children.

UnityReal-timeInstallation

Watch the video →

Own games — Bubble Hero & earlier titles

Own IP · Android, Steam & itch.io · Top 6 at Global Game Jam UPB Medellín

Co-creator — gameplay & QA

Gameplay systems, progression and difficulty balance for Bubble Hero, a wave-survival game taken from a 48-hour jam build to a public release. Before that I self-published two commercial Android titles, SodaRocket Challenge (2019) and Myth Pets (2020), handling design, development, testing and store release on my own — and I keep working on original IP such as the roguelite Chrono Leaf.

Unity / C#AndroidSteam

Steam → Google Play → itch.io →

Engineering beyond gameplay

AI & automation

An agentic bot on a local large language model that classifies natural-language bug reports and files them by priority, plus retrieval-augmented generation flows running in production on the OpenAI API — document retrieval and prompt design.

CI/CD & backend

CI/CD pipelines on GitHub Actions and Google Cloud Build that run automated tests before every deploy. Serverless backends on Firebase Cloud Functions and AWS Lambda: REST endpoints, server-side validation and idempotent writes. Web hardening with CSP, HSTS and COOP.

Experience

Apr 2026 – Aug 2026

Roblox developer (Luau)

Frecuencia Gamer

Architected Exploradores del Sabor, a Roblox brand experience for Colanta, with 80+ modules in strict typed Luau.

Jun 2026 – Jul 2026

Unity developer (contract)

La Fila

REST endpoints and an anti-cheat service on AWS Lambda, moving score validation to the server.

May 2026 – Jul 2026

Co-founder & Roblox developer

Sunset Games Studio

Shipped World Cup TGC on Roblox with eight server-validated live-ops systems.

Jan 2022 – Feb 2026

CTO & co-founder

Dragonark Studios

Technical roadmap, and development, QA and design teams across enterprise and VR/AR work for Visa, Mondelez, Ecopetrol and Minciencias.

Aug 2024 – Sep 2025

QA consultant

Dead Monkey, Inc

Test cycles for high-traffic UEFN experiences across six global brands, delivered under Epic Games certification standards.

Aug 2023 – Mar 2024

Game developer

PolygonUs

Gameplay mechanics and interactive experiences for client projects in Unity and C#.

2019 – 2022

Independent game developer

Self-published on Google Play

Two commercial Android titles, handling design, development, testing and store release alone.

Recognition

Capital Semilla 2025 — one of six ventures selected from nineteen, City of Medellín.
Recognized by Latinx in Games for Bubble Hero.
Top 6 at Global Game Jam, UPB Medellín, and featured in a Global Game Jam Community Spotlight.
Six global brands shipped under Epic Games certification standards.

Education Digital Entertainment Design Engineering · Universidad Pontificia Bolivariana, Medellín · 2025

Open to work

I am available for full-time roles and contract work, remote or on-site in Medellín. Game development, QA, live-ops systems or technical roles bridging art and code.

Or hire me for a specific piece of work on Fiverr, where payment is protected and the scope is fixed up front.

AngelinaBuilesC@gmail.com Connect on LinkedIn Hire me on Fiverr