Notabene is hiring Web3 Staff Backend Engineer

Desired Qualifications

Staff Backend Engineer London Engineering / Remote / Remote Apply for this job About Notabene Notabene is on a mission to make crypto a part of the everyday economy. Leading crypto organizations use our tools to reduce transaction risk and make crypto transfers safe. Working across three continents in eight countries, the Notabene team serves our fantastic community of 100+ customers, including financial institutions, fintechs, exchanges, and more. Our co-founders spearheaded foundational Self Sovereign Identity protocols and use-cases. This technology is key to the internals of our cutting edge tech stack. We re proud to have the support of leading investors, including Y Combinator, Jump Capital, Castle Island, Green Visor Capital, and more. We re at an exhilarating moment in our journey, as regulation technologies (reg-techs) are fast becoming recognized as a vital enabler of the crypto ecosystem. Notabene is growing fast—and we re looking for people like you to help shape the future rails of the crypto industry! About The Role As a Staff Backend Engineer at Notabene, you ll be pivotal in shaping how crypto transactions are securely cleared and settled at scale worldwide. You ll be joining the transactions team, a critical component of the Notabene Platform responsible for the reliable processing of high-throughput transaction data globally. In this role, you will architect, build, and maintain our core transaction-processing services, driving the platform s scalability, reliability, and performance to handle the growing volume and emerging crypto use cases. As a Staff Engineer, you ll be instrumental in setting technical direction, mentoring team members, and ensuring our architecture is optimized to meet the needs of a constantly changing and fast-paced market. Key Responsibilities Design, build, and maintain high-throughput, low-latency microservices for our Transactions team, contributing directly to Notabene s secure and reliable transaction authorization platform Work closely with product, engineering, compliance, and customer-facing teams to gather requirements align on technical feasibility, and prioritize projects that maximize value to our customers Develop and execute the Transactions team roadmap aligning with business priorities and strategic objectives Scope and drive large-scale technical projects end-to-end, from inception through deployment, and delivering ongoing improvements to scalability and performance Mentor and support engineers throughout the Notabene engineering organization What you bring to Notabene 8+ years of professional software engineering experience, with at least 3+ years in a senior or staff-level backend engineering role. You have a proven track record in building and optimizing high-throughput, distributed systems Highly proficient in back-end languages such as Node.js/Typescript/Deno with the ability to write clean, maintainable, and efficient code. Rust or Go experience is a huge plus Deep understanding of cryptography, public/private key encryption/signing. Knowledge of decentralized identity, verifiable credentials, and DIDComm is highly preferred Extensive experience in PostgreSQL and SQL optimization, with the ability to architect and troubleshoot high-throughput transactional databases. Knowledge of low-latency NoSQL datastores is a plus Expertise in event-driven microservices development, with hands-on experience using Kafka and familiarity with distributed systems principles Hands-on experience deploying and managing services on AWS with knowledge of container orchestration (Kubernetes, Docker) being highly desirable Knowledge of security principles, particularly around secure data handling, encryption, and best practices in financial or transactional data systems Strong problem-solving skills, attention to detail, and the ability to work independently in a global, remote-first company Excellent communication and writing skills, with the ability to collaborate across teams and departments If you strongly believe this role is for you, please apply. Notabene considers a broad array of candidates, including those without blockchain experience. Whether you re returning to work after a gap in employment, or taking the next step in your career path, we will be glad to have you on our radar. Notabene is proud to be an equal employment workplace and an affirmative action employer. By valuing inclusion and diversity of all forms, we strictly prohibit and do not discriminate based on race, color, religion, national origin, gender, gender identity, gender expression, age, ancestry, citizenship, sexual orientation, status as a protected veteran, or any other legally protected characteristic. Apply for this job

Duties & Responsibilities

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