The posting
Position: Full-Stack Engineer
Number of hours: 40 hours per week Schedule: 8:00 AM – 5:00 PM UK Time
Key Responsibilities
- Design, develop, and maintain a scalable multi-chain crypto analytics platform using modern full-stack technologies.
- Build and enhance responsive frontend applications using Next.js, React, and Tailwind CSS, including dashboards, token analytics pages, watchlists, and user-facing interfaces.
- Develop robust backend services using Node.js (Express/Fastify) to support API integrations, data processing, authentication, caching, and business logic.
- Integrate and normalize data from multiple blockchain and third-party providers, including token price feeds, liquidity data, volume tracking, trending tokens, and security analysis APIs.
- Build secure API gateway layers that protect third-party API credentials while managing rate limits, caching strategies, and provider reliability.
- Develop database structures and optimize queries using PostgreSQL for users, token metadata, watchlists, chat history, and cached analytics data.
- Implement background processing systems using tools such as Redis and BullMQ for scheduled jobs, token discovery, risk analysis updates, and data refresh workflows.
- Develop real-time functionality using WebSockets / Socket.io, including live price updates and future token-based chat features.
- Contribute to the implementation of blockchain safety features, including:Honeypot detection integrations Contract risk analysis Token safety scoring workflows Rug-risk data processing
- Create reliable systems with proper handling of API failures, rate limits, incomplete data, and service outages.
- Implement automated testing strategies using tools such as Jest/Vitest and Playwright to ensure application reliability and accuracy.
- Collaborate closely with the founder and existing engineering team to translate product requirements, technical decisions, and architecture plans into production-ready features.
- Participate in code reviews, technical discussions, system design improvements, and deployment processes.
- Support continuous improvements in scalability, security, performance, and user experience as the platform grows.
Qualifications
Required Qualifications
- Proven experience as a Full-Stack Engineer, Full-Stack Developer, Software Engineer, or similar role building production-level web applications.
- Strong proficiency in:JavaScript / TypeScript React.js Next.js Node.js Tailwind CSS
- Strong backend development experience including:REST API development API integrations Authentication and authorization Backend architecture and service design
- Hands-on experience with relational databases, particularly PostgreSQL, including database design, optimization, and data modeling.
- Experience building applications that consume and process external APIs, including handling:Rate limits Data normalization API failures Caching strategies
- Experience developing real-time applications using:WebSockets Socket.io Event-driven architectures
- Familiarity with cloud deployment environments such as:AWS Render Fly.io Vercel Container-based hosting environments
- Experience with caching and queue systems such as:Redis BullMQ
- Strong understanding of software engineering best practices, including:Clean code principles Version control (Git) Testing methodologies Code reviews Secure development practices
Preferred Qualifications
- Previous experience working on Web3, blockchain, cryptocurrency, DeFi, or financial analytics platforms.
- Experience integrating blockchain-related APIs or data providers such as:DEX analytics APIs Token security APIs Blockchain explorers Wallet analytics providers
- Familiarity with:Ethereum Virtual Machine (EVM) ecosystems Solana ecosystem Smart contract concepts Token mechanics Liquidity pools and decentralized exchanges (DEXs)
- Experience building data-heavy dashboards, analytics platforms, trading tools, or monitoring systems.
- Experience implementing risk scoring, fraud detection, security analysis, or financial data models.
- Understanding of high-availability systems where data accuracy and reliability are critical.
- Ability to work independently, make technical decisions, and collaborate directly with founders and senior engineers.



