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  • Europe, Eastern Europe, UK

  • Get ready to
    ·        Collaborate daily with product, design, and compliance in a lean, cross-functional team.
    ·        Drive product decisions end-to-end, moving from concept to code to production in days, not months.
    ·        Contribute to technical excellence: architecture reviews, RFCs, and open feedback - building practices that scale.
    ·        Influence not just the codebase, but the direction of the platform itself - shaping how millions of people will move money globally.

    What you’ll do
    ·        Design and operate systems that move billions in payments globally with near-zero downtime, ensuring sub-100ms latency under peak load.
    ·        Build fault-tolerant APIs and microservices (Node.js/TypeScript), scaling to millions of transactions with observability (metrics, tracing, automated alerts) from day one.
    ·        Embed compliance by design: KYC/AML, fraud detection, and audit trails that don’t slow users down.
    ·        Integrate and secure stablecoin and fiat rails - wallets, orchestrators, on/off-ramps - so anyone, anywhere can send and receive money instantly.
    ·        Ensure backend and frontend choices enhance the user experience, not just the codebase.
    ·        Lead initiatives from design to rollout, balancing ambition with global regulatory realities to deliver reliable systems users can depend on daily.

    What we’re looking for
    ·        6+ years building transaction-heavy systems in production, scaling to millions of transactions.
    ·        Deep backend expertise in Node.js (or Java/Go), REST/GraphQL microservices at scale.
    ·        Strong experience with PostgreSQL and Redis.
    ·        Full-stack capability: backend first, but proven ability to ship React/TypeScript frontend features.
    ·        Cloud & infra: AWS/GCP, Kubernetes, CI/CD, IaC.
    ·        Proven ability to meet strict SLAs (99.99% uptime) and latency target (<100ms). *Experience in regulated fintech/payments: compliance, security and UX as one flow.

    How you work (values we expect)
    ·        Ownership mindset - you own outcomes, not just tasks.
    ·        Product-minded - you think in flows, not endpoints, and measure impact, not LOC.
    ·        High-velocity, sustainable pace - you ship fast, adapt quickly, and raise the bar every cycle.
    ·        Clarity over complexity - simple for users, even if complex under the hood.
    ·        AI-native builder - you use Cursor/Claude Code/etc. to eliminate grunt work and focus on hard problems.

    Bonus Points if you have…
    ·        Scaled stablecoin/payment integrations (wallets, custody, on/off-ramps) to millions of users.
    ·        Hands-on with secure key management, custody infrastructure, or smart contract audits.
    ·        Experience building payment flows handling millions of transactions (cards, payouts, reconciliation, FX).
    ·        Cross-border FX and settlement expertise.

    What we offer
    ·        Founding role - build the architecture, standards, and codebase future engineers will inherit.
    ·        Move fast, no bureaucracy - high-trust environment, maximum autonomy.
    ·        Career-defining opportunity - build a payments platform from scratch as stablecoins go mainstream.
    ·        Transparent, supportive culture - feedback flows freely, the best ideas win, and you’ll have the freedom to experiment, learn, and grow.
     

    Jobs at Toptal

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