Mid/Senior Frontend Engineer (Remote)

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?