Location: Fully Remote Team: Core | Level: Senior At over99.com, we’re redefining what’s possible in crypto gaming. Our mission is simple: deliver a lightning-fast, seamless, and visually stunning gaming experience powered by cutting-edge blockchain technologies. We're building the most advanced crypto casino platform in the world—and we’re just getting started. We’re looking for a Senior Frontend Engineer who excels at building high-performance, interactive web applications. You’ll own the front-end architecture for our gaming experiences, optimize complex rendering pipelines, craft rich real-time interfaces, and push the limits of what’s possible in browser-based gaming. This is a fully remote role. We value autonomy, trust, and flexibility—and expect you to bring energy, ownership, and leadership wherever you work. What You’ll Be Doing Build and improve high-quality frontend features across the Over99 webapp and games surfaces. Work with React, Vue 3, TypeScript, Vite, and modern frontend tooling to deliver fast, reliable user experiences. Own frontend implementation for interactive product flows across wallets, balances, gameplay, account features, promotions, and real-time updates. Collaborate with engineers on frontend architecture, reusable components, state management, and performance optimization. Build and refine real-time client-server features using technologies like Socket.IO, WebSockets, and event-driven updates. Contribute to game-facing frontend experiences involving animations, sound, timing, physics, and responsive interaction patterns. Partner closely with product managers, designers, backend engineers, and QA to deliver polished end-to-end features. Use Cursor IDE, LLMs, and AI-assisted coding workflows heavily as part of day-to-day engineering, including MCP-powered integrations and custom tooling on top of Cursor. Use observability practices and tools like Datadog to understand frontend health, debug production issues, and improve user impact. Write maintainable, tested code and contribute to code reviews, CI/CD workflows, and team engineering standards. Mentor less experienced engineers through thoughtful reviews, pairing, technical guidance, and strong examples of ownership. Technologies You’ll Work With Core Infrastructure: React TypeScript Vite Vue 3 Tailwind CSS / Sass React Query / Vue Query Pinia / Vuex Socket.IO / WebSockets Node.js PostgreSQL Redis RabbitMQ Cursor IDE / LLM-assisted development MCP integrations Game / Interactive Frontend: Matter.js GSAP Howler Animation and rendering performance Real-time gameplay UX Bonus Skills (Nice to Have Experience With): Datadog AWS CI/CD Pipelines Docker iGaming, crypto, or gaming products What We’re Looking For Must-Haves: 4+ years of professional software engineering experience, with strong frontend engineering depth. Proficiency with JavaScript, TypeScript, HTML, CSS, and modern frontend development. Strong experience building production web applications with React, Vue, or similar modern frontend frameworks. Solid understanding of component architecture, state management, API integration, and responsive UI development. Experience building or optimizing high-performance interactive experiences, including animations, real-time updates, and client-server communication. Comfort using AI-assisted engineering workflows with Cursor IDE, LLMs, and related developer tools. Strong Git, code review, testing, CI/CD, and modern development workflow experience. Ability to work independently in a remote-first team while staying communicative, reliable, and ownership-driven. Strong product sense, debugging ability, and practical judgment when balancing quality, speed, and maintainability. Nice-to-Have: Experience with React Query, Vue Query, Pinia, Vuex, or similar state/data management tools. Experience with Socket.IO, WebSockets, or real-time product features. Experience with animations, canvas-style interactions, physics engines, sound, or game UI. Exposure to Node.js APIs or backend-adjacent development. Hands-on experience with Cursor, MCP servers, AI coding agents, custom IDE integrations, or other LLM-assisted development workflows. Background in crypto, gaming, gambling, or iGaming platforms. Familiarity with observability tools like Datadog. Experience with cloud deployment, Docker, or AWS. Experience mentoring engineers or leading frontend feature delivery. Why Join over99.com? Be part of a fast-growing and well-funded start-up at the intersection of gaming and blockchain Work with a world-class engineering team—collaborative, autonomous, and impact-driven Own critical parts of the front-end architecture powering next-generation gaming experiences Remote-first culture with flexible hours, asynchronous communication, and no micromanagement Build products you’ll be genuinely excited about What You’ll Get: Competitive Salary – We pay top-of-market for top-tier talent Remote-First Work Environment – Work from anywhere Generous Holiday Allowance Flexible Time Off & Hours – We focus on output Performance-Related Bonus – We reward meaningful impact Ready to Build with Us?