Offer summary

Qualifications:

Proficient in Node.js or Python for backend development., Experience with smart contract integration using Web3.js or Ethers.js., Solid understanding of blockchain fundamentals, particularly Ethereum., Skilled in managing relational and non-relational databases like PostgreSQL and MongoDB..

Key responsibilities:

Design and maintain scalable backend services for a crypto exchange platform.

Develop and integrate APIs for blockchain interactions and smart contracts.

Manage wallet integrations for user authentication and transaction flows.

Monitor blockchain infrastructure and ensure application security and performance.

Job description

The Role

We're looking a Back End Developer to join the international team behind the development of a crypto exchange platform. You'll be responsible for building and maintaining scalable, secure APIs and services that power the core of the platform. You'll integrate smart contracts, manage wallet interactions, and ensure seamless backend performance across blockchain and database systems.

What You'll Do

Design, build, and maintain scalable backend services using Node.js or Python
Develop and integrate APIs that interact with blockchain networks and smart contracts using tools like Web3.js or Ethers.js
Connect and manage wallet integrations to enable seamless user authentication and transaction flows
Collaborate with the front-end team to define and support end-to-end Web3 user experiences
Manage and optimize relational and non-relational databases
Ensure application security, reliability, and performance by applying backend best practices and blockchain-specific safeguards
Monitor and support blockchain infrastructure (nodes, RPC endpoints) where applicable
Stay up-to-date with emerging Web3 trends, especially DeFi protocols, NFT standards, and Ethereum ecosystem updates

What You Bring to the Table

Proficient in Node.js or Python
Experience integrating with smart contracts (Web3.js, Ethers.js)
Familiarity with wallet APIs (e.g., MetaMask, WalletConnect)
Solid understanding of blockchain fundamentals (Ethereum or similar)
Skilled in PostgreSQL, MongoDB, or similar databases
Strong grasp of backend architecture, API development, and security best practices
Experience with DeFi, NFTs, or running blockchain nodes
Based in EMEA

What You'll Get

A salary of $3000-$4500 / month depending on your experience
Fully remote work

Hiring Process

Quick call with the recruiter
Interview with the CEO
Interview with the team

We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We encourage applicants of all backgrounds to apply and look forward to welcoming those who will contribute to our diverse and inclusive culture.

Required profile