Full-Stack Engineer (AI - 09142026 - FTFSE)

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.