Web3.0 Backend Developer

We are building CryptoRank.io — a leading analytics platform and data aggregator for the Web3.0 market. Our mission is to empower users with the tools and insights they need to navigate the crypto space and make smarter, data-driven decisions.

At CryptoRank, we provide a wide range of analytical tools — all in one place.

From comprehensive market data on coins, IDOs, ICOs, and IEOs to project Vesting schedules, Fund analytics, ****VC investments, Ecosystem insights, potential Airdrops dashboard, and deeply Research center. Our platform also features a DeFi Portfolio Tracker, customizable watchlists and filters, a Mobile app, market data API, and much more.

Over the past few years, we’ve experienced tremendous growth, increasing our traffic and user base by tens of times.

Due to active growth, we are looking for a strong Web3.0 Backend Developer with suitable experience in Web3.0 / Crypto field.

What You Will Be Doing:

Participating in the development of backend components: designing, implementing, supporting, and optimizing the architecture
Task estimation, participation in sprint planning, and coordination with other team.
Conducting code reviews, supporting the deployment process, and assisting colleagues in solving complex tasks
Implementing and using best development practices, ensuring code quality
Collaborating with the Product Team to clarify requirements and prioritize implementation.

Requirements:

Strong proficiency in Node.js and TypeScript
Experience with Nest.js
Experience with PostgreSQL: schema design, query optimization
Experience with Web3 technologies:Integration with various RPC providers (Infura, Alchemy);
Working with libraries for interacting with ****Smart contracts (ethers.js, web3.js)
Understanding the architecture of EVM-compatible blockchains
Experience building scalable REST APIs
Skills in monitoring and logging systems (Grafana, Graylog)
Strong Git (GitHub) skills
Experience with Docker and Linux
Skills in writing automated tests (unit, integration, e2e)

As a plus:

Experience with other blockchain platforms (e.g., Solana)
Knowledge of building high-load systems
Hands-on experience with message brokers (RabbitMQ, Kafka, BullMQ)
Knowledge of CI/CD practices and tools and GitLab
Experience with GitLab
Skills in optimizing the performance of Node.js applications
Understanding of information security principles
Experience with WebSocket for real-time applications
Experience and understanding smart contracts

What we offer:

Full-Time remote work
Paid vacation, salary indexing based on performance
Highly-loaded products, lots of challenging tasks, strong team.