Senior Engineer - Stablecoin

Senior Engineer - Stablecoin Senior Engineer - Stablecoin Role We are looking for a passionate Senior Engineer to join our growing Tech team, helping us to transform and scale our payments platform through the power of crypto. This role will involve ownership of the entire engineering lifecycle from concept to production and release, being involved primarily in backend development with contribution to the frontend as well - it will be a high-impact position building our new stablecoin product from scratch. As a Senior team member you will have influence with technical direction, work collaboratively with stakeholders and drive high standards for code quality and performance. To help us drive success and achieve business goals you will be responsible for designing, building, deploying and maintaining new long-term features and services that are both scalable and reliable. About Us Sokin is a next-generation B2B financial services provider, enabling businesses to make and receive global payments with greater speed, lower cost, and total transparency. Our mission is simple: we’re simplifying global business - so businesses thrive wherever they choose to grow. We deliver services across: • Global payments and receivables • Foreign Exchange (FX) • Treasury management • Finance reconciliations We are rapidly expanding, with established presence in EMEA, APAC, and North America, Backed by a strong global infrastructure and industry-leading partners, we are redefining how businesses move money worldwide. Our clients span industries from sports and entertainment to logistics and travel, and our community is growing rapidly. As we continue to expand, we’re building a team of exceptional people who share our ambition to transform the future of global payments. Key Responsibilities Technical Leadership & Architecture Implement robust, scalable stablecoin infrastructure supporting multiple blockchains Design and implement cross-chain bridge solutions and settlement mechanisms across Ethereum, Polygon, Stellar, Solana, and other Layer 1/Layer 2 networks Stablecoin Development Build and maintain integrations with leading stablecoin protocols and their APIs using infrastructure providers like Infura, Alchemy, Quicknode, etc. Develop and support integrations with EVM, Solana, Tron blockchains, smartcontracts, DeFi protocols. Implement multi-signature wallet solutions and secure key management systems. Design and build integrations for real-time price feeds and reserves verification Create automated monitoring and alerting systems for on-chain and off-chain stablecoin operations Payments & Settlement Infrastructure Develop integrations with providers, traditional payment protocols and card systems. Build robust reconciliation and settlement connecting blockchain and banking rails Implement transaction routing and fee optimization strategies Design failover and disaster recovery mechanisms for payment continuity Develop real-time treasury management and liquidity rebalancing systems Compliance & Risk Management Implement transaction monitoring, screening, and compliance controls for AML/CFT requirements Design audit trails and immutable logging for regulatory reporting Collaborate with legal and compliance teams to implement VASP and MiCA requirements and travel rule protocols Develop circuit breakers and risk management controls for anomaly detection System Integration & Operations Build robust APIs and webhook systems for stablecoin functionality and data analytics, monitoriing. Integrate with banking partners, liquidity providers, and DeFi protocols Implement comprehensive observability, monitoring, and alerting infrastructure Optimize database design for high-volume transaction processing and blockchain data Lead incident response and post-mortem analysis for production issues Team Leadership & Collaboration Mentor engineers across the organization on stablecoin technology and blockchain development Conduct thorough code reviews with focus on security, performance, and maintainability Collaborate with Product, Operations, and Compliance teams on feature development Contribute to engineering hiring, including technical interviews and role definitions Document architectural decisions, runbooks, and technical specifications Requirements Stablecoin & Blockchain Expertise 7+ years of software engineering experience, with 3+ years working directly with blockchain technology, infrastructure, exchanges, wallets. Deep understanding of major stablecoin mechanisms: fiat-collateralized (USDC, USDT), crypto-collateralized (DAI), and algorithmic models. Deep understanding of blockchain transactions, wallet, addresses, smart contract integrations and yield mechanics. Hands-on experience integrating with stablecoin APIs from 3rd party providers. Strong knowledge of EVM-compatible blockchains, TRON, Solana. A track record building and deploying production smart contracts Technical Skills Senior-level proficiency in backend development (Nest.js/Node.js - must, Go, Rust – would be a plus). Experience in creating basic smart contracts, integrating of smatcontracts, testing frameworks (Hardhat, Foundry, Truffle), and security auditing. Deep understanding of cryptographic primitives, key management (HSMs, MPC), and wallet infrastructure Proficiency with event-driven architectures and distributed systems Strong database skills with both SQL and NoSQL systems Familiarity with containerization (Docker, Kubernetes) and CI/CD pipelines Please note, candidates will need to have the right to work in the jurisdiction that they are looking to work in. We are an equal opportunities employer committed to creating an inclusive work environment. As a growing global startup, we value agility and flexibility in our working culture. If you require any accommodations during the recruitment process, please let us know. Department Technology Locations Belgrade Remote status Hybrid Belgrade Workplace, Culture & Diversity Sokin’s company culture is a vibrant blend of diversity and inclusivity. We're a dynamic team on a mission to revolutionise international payments. At Sokin, we believe in fostering a warm, welcoming, and inclusive environment where everyone feels valued and empowered to contribute their unique perspectives. We are committed to creating a workplace where everyone can thrive and reach their full potential. Our culture is built on our employees’ collaboration, innovation, and a shared passion for making a positive impact on the world of international payments. Join us and become part of a dynamic team that's shaping the future of payments. If you're passionate about payments and our driven cause, and enjoy working in a collaborative environment, we'd love to have you join us on this exciting journey.