Staff Backend Software Engineer

As a Staff Backend Software Engineer at Notabene, you'll work on the core platform that carries transaction data between institutions around the world, written in Go. You'll design and build the hardest parts of our system, contribute to its architecture, and help the engineers around you do their best work. Every transfer you touch moves between institutions that run their own systems, answer to different regulators, and have no reason to trust each other-the software in the middle has to be right every time.

What you'll do

• Design and build core parts of the transaction platform
• Build for correctness under failure, with the isolation and auditability a regulated product needs
• Scale the platform as transaction volume and the number of institutions per node grow, keeping latency predictable and the database healthy
• Write design docs for what you build and give sharp, useful reviews on other people's designs and code
• Build with AI agents every day and help improve the specs, context and review practices that make agent-written code safe to ship in a regulated product
• Work with product, compliance and customer-facing teams to turn regulatory and customer needs into working software
• Own what you ship in production, from tracing and alerts to incident follow-ups
• Mentor engineers on the team
• Work on an on-call rotation

What you bring

• Systems design depth: you've designed and owned distributed systems where correctness matters more than features, and you know asynchronous processing well
• Strong Go, or deep production experience in another statically typed backend language (Java, Kotlin, Rust, C#) with the appetite to ship Go within your first weeks
• PostgreSQL depth: schema design, query plans, locking and isolation levels, migrations on live systems, and multi-tenant data
• End-to-end ownership in the cloud with working knowledge of AWS or GCP (IAM, networking, managed databases, queues, storage), ability to read and change Terraform, and debug production from traces and logs
• AI-native engineering: you use coding agents such as Claude Code or Cursor every day, write specs and context, break work down for them, review their output as rigorously as a human pull request, and know where they fail
• Staff-level experience: a track record of delivering large, technically hard projects end to end and helping engineers around you get better, typically 8+ years building backend systems
• Clear, concise writing in a remote company that makes decisions in documents and async threads
• Security fundamentals for sensitive data: encryption in transit and at rest, key handling, minimising personal data, and least-privilege access

Nice to have

• Applied cryptography: encryption, signing and key management
• Decentralized identity: DIDs, verifiable credentials, DIDComm
• Regulated finance, payments or compliance experience: Travel Rule, AML, ISO 20022
• Building and running software under SOC 2 or ISO 27001 controls
• Crypto and blockchain knowledge: chains, addresses, assets, CAIP identifiers
• Node.js and TypeScript
• Queue and workflow systems, and modern observability tooling

What we offer

• Flexible remote work from anywhere
• $1,000 work-from-home stipend to use within your first year
• MacBook Pro procured by you and your manager to match your needs
• Unlimited PTO
• Country-specific statutory benefits and contributions, managed via employer-of-record

About Notabene

Notabene is on a mission to make crypto a part of the everyday economy. Leading crypto organizations use the platform to reduce transaction risk and make crypto transfers safe. Operating across three continents in eight countries, Notabene serves over 100 customers including financial institutions, fintechs, and exchanges. The company is backed by investors including Y Combinator, Jump Capital, Castle Island, and Green Visor Capital.