PixiJS Game Developer

Description
Applications and CVs/resumes MUST be submitted in English to be considered*
This is a 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

Work arrangement
Yes