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Smart Contract Backend Engineer (External)
Job Description
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.
Requirements
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.
About Serotonin
Serotonin is the leading Web3 marketing and product studio, building and growing some of the most impactful brands and protocols in the blockchain space. We are a full-service agency and venture studio dedicated to accelerating the adoption of decentralized technologies. Our expertise spans brand strategy, go-to-market execution, content creation, community building, and investor relations, all tailored for the unique nuances of cryptocurrency and blockchain innovation. We partner with visionary founders and organizations to bring revolutionary Web3 products and services to market, shaping the future of digital ownership, finance, and interaction. Our culture is defined by a relentless pursuit of excellence, creative problem-solving, and a deep-seated passion for Web3. We foster a dynamic, collaborative, and remote-first environment where innovation thrives, and every team member is empowered to contribute significantly to industry-defining projects. We believe in continuous learning, embracing new technologies, and advocating for a more decentralized world. Serotonin is home to a diverse team of strategists, marketers, designers, and developers united by a shared mission to drive blockchain forward. Join Serotonin and become a pivotal force in the Web3 revolution. This is an unparalleled opportunity to work at the cutting edge of blockchain technology, influence the narrative of groundbreaking crypto projects, and build a career with lasting impact. If you're a skilled professional eager to apply your talents to meaningful work in a fast-paced, high-growth sector, Serotonin offers a platform for unparalleled growth, significant autonomy, and the chance to shape the future of the decentralized web.