Smart Contract Backend Engineer (External) at Serotonin New York, NY

Smart Contract Backend Engineer (External) job at Serotonin. New York, NY.

Join to apply for the Smart Contract Backend Engineer (External) role at Serotonin

Join to apply for the Smart Contract Backend Engineer (External) role at Serotonin

Our client is a cutting-edge company focused on revolutionizing global payments by building a scalable, zero-fee payment platform secured by Bitcoin. Their innovative technology enables fast, secure, and cost-effective digital transactions, with the potential to reshape how the world interacts with money. We are looking for a talented Smart Contract Engineer to join their growing team.

This role offers the opportunity to work on innovative blockchain technologies and contribute to the development of secure, efficient, and reliable smart contracts that power our payment ecosystem.

If you’re excited about joining a dynamic and purpose-driven environment where your ideas can shape the future, we’d love to meet you. Together, we can redefine what’s possible in the world of digital connectivity and data management.

Key Responsibilities:

Design, develop, and deploy smart contracts for the platform using Solidity or other relevant programming languages

Implement secure and efficient code while adhering to best practices for smart contract development

Collaborate with backend and frontend engineers to integrate smart contracts into the platform

Perform rigorous testing, debugging, and auditing of smart contracts to ensure security and reliability

Stay informed about the latest developments in blockchain and smart contract technologies

Contribute to the documentation of smart contract architecture and processes

Participate in code reviews to maintain high-quality standards across the codebase

Key Requirements:

2–4 years of experience in blockchain development, with a strong focus on smart contracts

Proficiency in Solidity and familiarity with Ethereum Virtual Machine (EVM)

Understanding of security considerations and best practices for smart contract development

Experience with tools such as Hardhat, Truffle, or Foundry for development and testing

Familiarity with Web3.js, Ethers.js, or similar libraries for interacting with blockchain networks

Strong problem-solving skills and attention to detail

Excellent communication and collaboration skills

Preferred Qualifications

Experience with Bitcoin Layer 2 solutions or similar blockchain ecosystems

Contributions to open-source blockchain or smart contract projects

Understanding of financial systems, payment protocols, or decentralized finance (DeFi)

What We Offer

Competitive salary and equity options

Flexible working hours and remote-friendly environment

The chance to work on cutting-edge technology with a talented, passionate team

Opportunities for professional growth and learning

Seniority level Seniority level Not Applicable

Employment type Employment type Contract

Job function Job function Engineering and Information Technology

Industries Advertising Services

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