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Staff Backend Engineer (UK Remote)
London
Engineering /
Remote /
Remote
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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!
The Impact You'll Have:
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.
What You'll Do
- 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
Must Haves
- 8+ years of professional software engineering experience, with at least 3+ years in a senior or staff-level backend engineering role
- 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.
- Expertise in event-driven microservices development, with hands-on experience using Kafka or equivalent technologies
- Extensive experience with PostgreSQL, SQL optimization, and architecting high-throughput transactional databases
- Hands-on experience deploying and managing services on AWS, with a solid understanding of container orchestration tools like Kubernetes and Docker
- Strong understanding 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
Nice-to-Haves
- Experience with Rust or Go is a significant plus.
- Deep understanding of cryptography, including public/private key encryption and signing.
- Knowledge of decentralized identity, verifiable credentials, and DIDComm protocols.
- Familiarity with low-latency NoSQL datastores.
- Familiarity with distributed systems principles beyond Kafka, such as consensus protocols or distributed tracing.
Benefits
- Flexible Remote Work: Work from anywhere!
- $1000 WFH Stipend: Use within your first year of employment.
- MacBook Pro: Procured by you and your manager to find a model that meets your needs.
- Unlimited PTO: We trust you to take as much holiday as you need.
- Country-Specific Benefits: Statutory offerings and contributions, managed via our employer-of-record.
Apply Today!
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.
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What does a back-end developer in Web3 do?
A back-end developer in web3 typically works on the server-side of a web application, using technologies that are specific to the decentralized web (also known as Web3-related)
This might involve building and maintaining the infrastructure that supports decentralized applications (dApps), or developing the underlying smart contracts and blockchain-based systems that power those dApps
In general, the goal of a back-end developer in web3 is to create the technologies and tools that enable users to interact with the decentralized web in a secure and seamless way.