ph3Overview /h3 p1inch is the DeFi ecosystem building financial freedom for everyone. 1inch products help users and builders trade, hold and track digital assets with self-custody, comprehensive security and an intuitive user experience. 1inch protocols and APIs provide core infrastructure across the DeFi industry and beyond. /p pIf you’re someone who thinks big, moves fast and wants to make an impact right from day one, join our industry-changing team. Location: We hire with a focus on Dubai and Europe. For this role, we prefer candidates who are either based in Dubai or working remotely within +/- 4 hours GST time. /p pWe’re looking for an enterprise-oriented Senior Software Engineer with a focus on structure and scalability. You’ll be responsible for developing high-performance, scalable backend systems for our core infrastructure, including services like History, Tokens, Prices, and BFF. This role requires expertise in the Node.js ecosystem (Nest.js), as well as experience with microservices architecture and various storage and monitoring tools. You’ll need a basic knowledge of blockchain technologies and be comfortable working in a Scrum-based, agile environment. The position is based on a hybrid schedule, with a minimum of three days per week on-site in our Dubai office. /p h3Responsibilities /h3 ul liDesigning and implementing scalable microservices and high-performance APIs using Nest.js /li liEnsuring low latency and high throughput in service architecture /li liWriting clean, maintainable, and well-documented code while following internal coding standards /li liMonitoring technical and business metrics and setting up alerting systems for early incident detection /li liPerforming regular profiling and system performance analysis to optimise backend components,



including database queries and response times /li liParticipating in code reviews and engaging in architecture discussions and sprint planning sessions /li liPromoting best engineering practices across the team /li liEnsuring backend systems are secure, scalable, and resilient /li liApplying industry best practices for data protection and system design /li liProactively identifying and mitigating system vulnerabilities /li liStaying updated with emerging backend technologies and introducing new tools and practices to enhance team efficiency /li liContinuously seeking ways to improve system architecture and performance /li /ul h3Requirements /h3 ul liPrevious experience working in fintech, DeFi, or crypto projects /li liExperience with microservices architecture in a high-load environment /li liExperience setting up and managing metrics pipelines and alerting systems /li /ul h3Skills /h3 ul liProficient in Node.js/TypeScript with strong SQL skills and PostgreSQL experience /li liFamiliar with Redis, message brokers (e.g. NATS, EMQX, Kafka), and monitoring tools (Prometheus, Grafana) /li liGood understanding of blockchain fundamentals, Web3, and Solidity /li liKnowledge of CI/CD pipelines, Docker, and basic Kubernetes concepts /li liStrong problem-solving abilities, proactive communication, and quality-driven mindset /li /ul h3Nice To Have /h3 ul liNest.js /li liKnowledge of event-driven architecture /li liKnowledge of Web3 libraries (ethers.js, web3.js) for blockchain interactions /li /ul h3Why you’ll love working with us /h3 ul liJoin a young, creative team in a fast-paced and supportive environment /li liWe’re open to new ideas — pitch your vision and make it happen /li liCompetitive pay that matches your skills and experience /li liBe part of a company that’s shaping the future of DeFi /li liUnlimited vacation days when you need it /li liFully compensated for your work gear /li liAnnual team retreat at a top international location /li /ul h3Job Details /h3 ul liSeniority level: Not Applicable /li liEmployment type: Full-time /li liJob function: Information Technology /li liIndustries: Transportation, Logistics, Supply Chain and Storage /li /ul /p #J-18808-Ljbffr

📌 Senior Software Engineer, Node.js (Madrid)
🏢 1inch
📍 Madrid