Senior Full Stack Web Developer

You will write and maintain the front end of our websites, design and implement the animations that carry the look and feel of each title, and control website content across releases and regional versions. You will also extend into measurement by setting up and maintaining Google Tag Manager (GTM) and Google Analytics (GA) so that every page, event, and campaign link reports clean, usable data.
Beyond public websites, you will help build the front end of internal game tools and functions used by our regional teams, and support the wider development team by sharing reusable components, reviewing code, and picking up cross-project work when workload requires. You will coordinate with marketing, creative, regional operations, and technical teams, and you are expected to deliver to a production standard with clear documentation and a hand-over that others can maintain.
Responsibilities
Develop, deploy, and maintain game websites and landing pages, covering front-end implementation, responsive behavior across devices, performance, and cross-browser stability.
Own back-end and integration work needed to run the websites, including APIs, forms, content management, and connections to internal systems, as the full stack scope of the role.
Design and implement web animations and interactions that match the art direction of each game, balancing visual quality with load speed and device compatibility.
Control and publish website content, including copy, images, video, and regional language versions, with proper version control, review steps, and rollback readiness.
Set up and maintain GTM containers and GA properties, including event and conversion tracking, UTM conventions, and data layer design, in line with the agreed tracking plan.
Validate tracking after every release and flag data quality issues early, working with marketing and BI on how the data is read and used.
Develop the front end of internal game tools and functions, such as dashboards, request interfaces, and operational utilities, working from requirements set with the teams that use them.
Support the development team on delivery, including code review, reusable front-end components, troubleshooting, and picking up cross-project work when workload requires.
Document code, tracking setups, and deployment steps so that the work can be handed over and maintained by others.
Support launch periods, including CBT and OBT website readiness, and respond to urgent fixes during live windows.
Qualifications
4 to 6 years of professional experience in full stack web development, with a portfolio of live production websites or web applications.
Strong skills in HTML, CSS, and JavaScript or TypeScript, and hands-on experience with a modern front-end framework such as React or Vue.
Experience building web animations and interactions, using CSS animation, GSAP, Lottie, or equivalent tools, with attention to performance.
Working knowledge of back-end development (for example [protected info] or Python), REST APIs, databases, and deployment on cloud or CDN-based hosting.
Hands-on experience configuring Google Tag Manager and Google Analytics (GA4), including event design, conversion setup, and debugging.
Experience working inside a development team, including code review, Git-based workflows, and sharing reusable components.
Experience with a CMS or content control workflows for multilingual websites, and working knowledge of design tools such as Figma and the Adobe suite, are an advantage.
Familiarity with ACGN-style and gacha games is required, including an understanding of what ACGN audiences expect from a game's web presence and visual language.
Based in Vietnam. Professional working proficiency in English, both written and spoken, is an advantage.