Lead Software Engineer

Europe, Eastern Europe, UK
New Business – New Business /
Full-time /
Remote
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.