HTML Developer

BettingJobs; Greater London; On-site; GBP 35,000 - 55,000; Full time

Job summary

Ideal candidates will have strong experience building interactive UI components, with a passion for animation, state management and mobile‑first development. This role offers the chance to work in a multidisciplinary team on exciting gaming projects.

Qualifications

• Experience building interactive UI components.
• Solid understanding of CSS animations, transitions, and transforms.
• Familiarity with managing UI state and dynamic updates.
• Experience with responsive design and mobile‑first development.
• Ability to work accurately from design mockups and interaction specs.
• Comfortable collaborating in a multidisciplinary team environment.

Responsibilities

• Implement gamification UI elements such as progress indicators and meters, persistent states, animations, transitions and rewards/unlock sequences.
• Translate UI and interaction designs into high‑quality, responsive layouts.
• Work with designers to refine timing, motion, and visual clarity of interactive elements.
• Understand and work with CMS systems to build gamification features.
• Ensure interfaces perform smoothly across devices and platforms.
• Maintain clean, modular and reusable front‑end code.
• Debug and optimise interactive elements for performance and stability.

Skills

UI components

CSS animations

UI state management

Responsive design

Design from mocks

Team collaboration

Tools

React

Vue

Job description

Betting Jobs is working with a successful iGaming group, with offices in South Africa & London, looking to hire an experienced HTML Developer to join their B2B game studio.

Key Responsibilities

• Implement gamification elements such as: Progress indicators and meters, Persistent states (e.g. collected items, activated features), Animations, transitions & visual feedback and Reward and unlock sequences.
• Translate UI and interaction designs into high‑quality, responsive layouts
• Work with designers to refine timing, motion, and visual clarity of interactive elements
• Understand and comprehend CMS systems to facilitate the building of the gamification
• Ensure interfaces perform smoothly across all platforms and devices
• Maintain clean, modular, and reusable front‑end code
• Debug and optimise interactive elements for performance and stability

Required Skills & Experience

• Experience building interactive UI components, not just static pages
• Solid understanding of CSS animations, transitions, and transforms
• Familiarity with managing UI state and dynamic updates
• Experience with responsive design and mobile‑first development
• Ability to work accurately from design mockups and interaction specs
• Comfortable collaborating in a multidisciplinary team environment

Nice to Have

• Experience working on games, gamified products, or interactive media
• Familiarity with canvas, SVG animations, or lightweight animation libraries
• Experience with frameworks or tooling (e.g. React, Vue, or similar)
• Understanding of game UX principles (player feedback, anticipation, reward timing)
• Interest in game mechanics, player psychology, or interactive storytelling