PixiJS Game Developer

Side; São Paulo; On-site; BRL 83,000 - 138,000; Part time

Benefits offered by this job

Competitive hourly rate

Job summary

Side seeks an experienced PixiJS Game Developer to own the technical quality, architecture and performance of our browser-based games. You will ship features for desktop and mobile, extending titles built with PixiJS, within a fully remote Brazil-based engagement.

You’ll work on AI-assisted prototypes and live titles, improving code quality, reducing debt, and enforcing scalable, production-ready patterns in a collaborative environment.

Qualifications

• Strong experience using PixiJS
• Good working knowledge of Git and collaborative development workflows
• GSAP for animation and tweening
• Howler.js for audio integration
• Vitest and/or Playwright for testing and QA
• Analytics and monitoring tools such as PostHog and Sentry

Responsibilities

• Own the technical quality, architecture, and performance of our browser-based games
• Implement gameplay features, UI systems, animations, audio, and game mechanics
• Identify technical debt and establish best practices for long-term development and maintenance

Skills

PixiJS

Git

GSAP

Howler.js

Vitest

Playwright

PostHog

Sentry

Tools

PixiJS

Git workflows

GSAP

Howler.js

Vitest

Playwright

PostHog

Sentry

Job description

3-month freelance engagement, working 40 hours per week, and is fully remote within Brazil, looking to start within 2 weeks.

We are not looking for a vibe coder.

We are seeking an experienced PixiJS Game Developer to take ownership of the technical quality, architecture, and performance of our browser-based games. This role is ideal for an engineer who has spent several years building and shipping game products with PixiJS and understands the realities of delivering maintainable, scalable, production-ready code.

You will work on existing titles, improving and extending games that have been rapidly developed through modern AI-assisted workflows and prototyping processes. You will implement gameplay features, UI systems, animations, audio, and game mechanics while ensuring a consistent player experience across desktop and mobile devices. You will also be responsible for identifying technical debt, improving code quality, and establishing best practices that support long-term development and maintenance.

This is not a role for a vibe coder - we need a developer with a proven track record of building, optimising, and shipping commercial games using PixiJS in a professional environment prior to the use of AI in coding.

Requirements

What we are looking for:

• Strong experience using PixiJS
• Good working knowledge of Git and collaborative development workflows
• GSAP for animation and tweening
• Howler.js for audio integration
• Vitest and/or Playwright for testing and quality assurance
• Analytics and monitoring tools such as PostHog and Sentry

Nice to Haves:

• Previous experience developing casual, puzzle, arcade, or mobile-style games
• Experience shipping and supporting live HTML5/browser-based games
• Familiarity with scalable game architecture and reusable gameplay systems
• Experience optimising games for lower-spec or mobile devices
• Understanding of asset delivery and CDN pipelines

Benefits

• Competitive Hourly Rate
• Dynamic, multicultural and fun environment.
• You will be working for the world's leading provider of game services.
• We empower our people and offer regular progression opportunities to ensure our employees flourish.

About Side

Side (formerly PTW) is a global video game development and services provider, offering technical and creative solutions to many of the largest developers and studios around the world. Founded in 2009 and drawing on 30+ years' experience from our parent company in Japan, Side has since grown to become a global force with 20 studios in 14 countries across North America, Europe, South America, and Asia.

Our industry-leading services include game development, art production, audio production, quality assurance, localization, localization QA, player support, community management, and datasets.

Experience our side of life. For more information, visit www.side.inc