Senior Engineer - Frontend (Platform Team)

Hong Kong
Full time
Office
Compensation is not specified
Role
Frontend Engineer
Description

Who We Are At OKX, we are dedicated to leveraging technology to shape the future. Since its establishment in 2017, OKX has emerged as a prominent player in the global market for cryptocurrency spot and derivatives exchanges. Through the innovative use of blockchain technology, OKX has transformed the financial landscape by offering a wide array of advanced products, solutions, and trading tools. Trusted by a user base exceeding 20 million across 180 regions worldwide, OKX is committed to providing a dynamic platform that enables individuals to delve into the realm of cryptocurrencies. Alongside its esteemed DeFi exchange, OKX also equips users with OKX Insights, a research department at the forefront of the latest developments in the cryptocurrency sector. Possessing an extensive range of crypto services and a staunch commitment to innovation, OKX envisions a realm of financial inclusivity supported by blockchain technology and decentralized finance.

We deeply value our personnel and strive to cultivate a culture that fosters teamwork, adaptability to change, and ethical conduct. At OKX, we are dedicated to creating a welcoming, gratifying, and diverse environment for our team members. Regardless of background, every individual is prized, respected, and provided with equal opportunities for growth and success – our aim is to bring out the best in you.

About the Team The OKX Frontend Platform Team is tasked with managing the frontend operations of the company's B-side website. Comprising members from reputable internet firms locally and globally, the team cultivates a robust technical environment. Demonstrating proactivity, a keen aptitude for learning, and a collaborative spirit, team members uphold mutual support, fostering collective advancement.

What You’ll Be Doing:

  • Engage in internal platform system development, capable of autonomously executing subsystem design, development, and upkeep.

  • Enhance system performance, fortify stability, and bolster security.

  • Prioritize user experience by perpetually refining system usability.

  • Collaborate with fellow engineers in development to ensure code robustness and reliability through team-led design and code reviews

What We Look For In You:

  • Proficient in JavaScript, HTML, CSS, and adept in utilizing Node.js. Capable of meeting team standards for efficiency, quality, and timely product delivery.

  • Approach problems from a user-centric perspective and maintain a constant dedication to enhancing user experience. Continuously acquire, analyze, and implement user feedback to drive improvements.

  • Skilled in React, possessing a foundational comprehension of components, lifecycles, and DOM updating mechanisms. Stay abreast of recent developments in the frontend domain to optimize and elevate the efficiency and quality of the frontend team's work.

  • Familiarity with state management frameworks like Redux, MobX, Vuex, with a strong emphasis on comprehending the foundational aspects and procedures of state management.

  • Exhibit a robust attention to code quality, acknowledging the significance of high-quality code for the system's maintainability. Collaborate with frontend peers to uphold code quality standards through rigorous code reviews and design assessments.

  • Have a basic grasp of software engineering principles, understand feature development lifecycles, possess fundamental requirements management knowledge, and exhibit exposure to continuous integration concepts and tools.

  • Demonstrate a fervor for frontend development, a willingness to stay abreast of its rapid evolution, and a passion for exploring cutting-edge technologies.

Nice to Haves:

  • Some knowledge of frontend performance optimization, with a preference for practical experience in this area.

  • Understanding of browser principles is an advantage.

  • Experience in a large-scale enterprise, familiarity with DevOps, is beneficial.

  • Previous involvement in the development of large-scale projects is desirable.

Skills Required
Avatar
OKX
Company size
Not specified
Location
United States
Description
Not specified

More Full-time Jobs

Show more

Remote Data Entry & Internet Research Assistant (Beginner Friendly)

Remote, USA
Remote, USA
Part time
Remote
We are an international IT and digital support company looking for new remote assistants.
 
The job is very simple and beginner friendly. No special experience is required. Training and instructions will be provided.
 
Your tasks may include:
 
• Checking basic online information
• Testing simple crypto or digital tools
• Completing small verification tasks
• Following step-by-step instructions
• Helping our team with easy online activities
 
Most tasks take 5–20 minutes to complete.
 
Payment starts from $8–$15 per task. More tasks and higher payments are available for active workers.
 
Requirements:
 
• Basic English understanding
• Smartphone or computer
• Internet connection
• Responsibility and ability to follow instructions
 
This is a flexible remote opportunity. You can work from anywhere and choose your working hours.
 
Long-term cooperation is available for reliable workers.
Payment in Crypto
208-833
Monthly
See details

Web3 + Supabase Developer Needed to Complete BSC Testnet Waitlist & Staking Platform

Washington, USA
Washington, USA
Part time
Remote
📌 Job Description
 
We are building a production-ready Web3 waitlist and dashboard platform using Next.js 15 (App Router), BSC Testnet, Supabase, and Wagmi v2.
The core architecture, database schema, and feature roadmap are already defined. We are looking for an experienced developer to complete, polish, and harden the project.
 
This is not a prototype — the goal is a fully working, deployable system with clean code, security best practices, and proper Web3 UX.
 
🧩 Project Overview
 
The platform includes:
Wallet-based user registration (BSC Testnet only)
Automatic network detection & switching
Supabase-backed user management
Automatic virtual card generation (Bronze / Silver / Gold)
Token staking system with transaction logging
Referral system with rewards tracking
Dashboard with analytics & history
X (Twitter) OAuth integration
Discord bot with XP & invite tracking
A detailed README and database schema are already prepared.
 
✅ Responsibilities
 
You will be responsible for:
 
Completing and stabilizing the Next.js App Router implementation
Finalizing wallet connection & network enforcement (Chain ID 97)
Ensuring Supabase RLS policies are correct and secure
Implementing or completing:
Staking flows (stake, unstake, claim, emergency withdraw)
Referral tracking & reward logic
Dashboard analytics & transaction history
Finalizing X (Twitter) OAuth integration
Reviewing and improving overall code quality & structure
Fixing bugs, edge cases, and UX issues
Preparing the app for Railway deployment
(Bonus) Improving performance and Web3 UX
 
🛠 Tech Stack (Must-Have Experience)
 
Required:
 
Next.js 14/15 (App Router)
TypeScript
Wagmi v2 + WalletConnect
EVM chains (BSC preferred)
Supabase (Postgres, RLS, triggers, SQL functions)
Tailwind CSS
Web3 transaction handling & logging
 
Nice to Have:
 
Discord bot development (Node.js)
OAuth 2.0 (X / Twitter)
Smart contract interaction (staking contracts)
Framer Motion
shadcn/ui / Radix UI
 
🔒 Security Expectations
 
You must be comfortable with:
Wallet validation & chain enforcement
Preventing self-referrals & abuse
Transaction hash uniqueness checks
Secure handling of OAuth tokens
Supabase RLS & role-based access
 
📦 Deliverables
 
Fully working, deployable application
Clean, documented codebase
Verified Supabase schema & policies
Functional staking & referral systems
Deployment-ready build (Railway)
Basic handover documentation
 
⏳ Timeline
 
Estimated duration: 2–4 months
Start: Immediately
Potential for long-term collaboration
 
💰 Budget
 
Open to fixed-price or hourly
Please include:
 
Your estimated timeline
Relevant Web3 / Next.js projects
Any questions or suggestions to improve the system
 
🧠 How to Apply
 
When applying, please answer:
 
Have you built production Web3 apps with Next.js + Wagmi before?
Have you worked with Supabase RLS & SQL triggers?
Share 1–3 relevant projects (GitHub or live links)
What risks or improvements do you see in this architecture?
Generic proposals will be ignored.
Payment in Crypto
4,500
Monthly
See details

Senior Web3 / Crypto Trading Platform Developer

Full time
Remote
PumaPulse is launching a new standalone domain focused on building professional-grade crypto trading platforms and on-chain trading tools. We are seeking an experienced freelance Web3 developer to help design, build, and evolve a scalable trading product with commercialization potential.ResponsibilitiesDevelop crypto trading tools, bots, or SaaS platformsIntegrate with DEXs and on-chain protocols (e.g., Solana, Ethereum)Implement real-time blockchain data monitoring and trade executionEnsure security, performance, and MEV-aware designCollaborate on product roadmap, strategy, and future featuresRequirementsStrong experience in Web3 and DeFi developmentProven work with crypto trading bots or on-chain trading systemsExperience with at least one major blockchain ecosystemSolid understanding of smart contract interaction and security best practicesAbility to deliver production-ready code and communicate clearlyNice to HaveExperience productizing tools into SaaS platformsBackground in advanced trading strategies or MEVPrior work with VC-backed or early-stage Web3 projectsEngagementFreelance / contract roleCompetitive compensation based on experiencePotential for long-term collaborationApply with relevant Web3 projects, GitHub links, and availability.
Payment in Crypto
50-80
Monthly
See details

Fullstack Developer Needed for Web3 Prediction Market Platform

Brooklyn, USA
Brooklyn, USA
Full time
Remote
Summary
We're looking for an experienced Blockchain / Full-Stack Developer to help build a production-ready MVP for a Web3 prediction marketplace.
We’ve already built a basic UI prototype using vibe coding. The goal now is to turn this prototype into a functional, scalable dApp with clean architecture and solid Web3 fundamentals.
This is not a tutorial or experimental project — We’re looking for someone who has real experience shipping blockchain/web3 products.
What You’ll Do
Review and improve an existing UI prototype
Build smart contract logic for a prediction marketplace MVP
Integrate blockchain functionality with the frontend
Develop backend / API logic as needed
Ensure clean, maintainable, production-ready code
Collaborate on product decisions and MVP scope
Tech Stack (Preferred)
Frontend: Next.js / React
Backend: Node.js
Blockchain: Solidity / Rust
Experience with non-EVM chains is a plus (open to discussion)
What We're Looking For
- Strong experience in Blockchain & Web3 development
- Proven ability to build production-ready dApps
- Proficiency in Next.js, React, and Node.js
- Experience designing and shipping MVPs
- Good communication and ability to work independently
Nice to Have
- Previous work on prediction markets, DeFi, or marketplaces
- Experience taking projects from prototype to launch
- Performance, security, and scalability mindset
How to Apply
Please include:
- A brief summary of your Web3 experience
- Links to previous dApps or blockchain projects
- Your preferred tech stack and availability
If you’re an expert in blockchain and Web3 and enjoy building real products from early prototypes, We’d love to hear from you.
Payment in Crypto
8,000-9,000
Monthly
See details

Looking for a blockchain developer

Whiteman Air Force Base, USA
Whiteman Air Force Base, USA
Full time
Remote
We are looking for a skilled Full-Stack Blockchain Developer to help maintain, improve, and extend the RaiseHive platform. This role involves working across the frontend, backend, and smart contract layers to ensure a stable, secure, and scalable Web3 application.
The ideal candidate has hands-on experience with React, Node.js, Ethereum smart contracts, and real-world Web3 integrations.
Framework: React 18.2 (Vite 3)
Styling: Tailwind CSS 3.4, NextUI
Animations: Framer Motion
Web3: Thirdweb SDK v4, Ethers.js v5
Routing: React Router DOM v6
State Management: React Context API
Libraries: React Markdown, React Image Gallery, Replyke (comments), React Toastify
Runtime: Node.js
Framework: Express.js
Database: MongoDB Atlas (Mongoose ODM)
Email: Nodemailer
Scheduling: Node-cron
Logging: Pino
Network: Ethereum
Smart Contracts: Solidity ^0.8.19
Development Tools: Hardhat
Libraries: OpenZeppelin, Thirdweb Contracts
Wallet Integration: MetaMask
Frontend
Strong proficiency in React (hooks, context, routing)
Experience with Vite or modern build tools
Solid knowledge of Tailwind CSS and responsive design
Experience using component libraries (NextUI, Material UI, etc.)
Backend
Strong experience with Node.js and Express
Proficiency with MongoDB and Mongoose
REST API design and implementation
Environment configuration and deployment awareness
Blockchain & Web3
Hands-on Ethereum development experience
Solidity smart contract development
Experience with Ethers.js / Thirdweb SDK
Understanding of smart contract security and gas optimization
MetaMask wallet integration and transaction handling
General
JavaScript (ES6+)
Git version control
Async programming and debugging skills
Strong problem-solving ability
Payment in Crypto
125
Monthly
See details