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Backend Developer

London, UK💼 Full-time🗓 2026-09-22 → 2026-09-23

Core

Building core backend systems, APIs, and financial product infrastructure for an AI-powered neobank serving millions of users across Southeast Asia.

Role type

Senior Backend Engineer (Fintech/Neobank)

Builds

Scalable backend services for onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC, and risk flows.

Domain

Fintech, Neobanking, Payments, AI

Deliverable

production ML models | product features

Required skills

Backend engineering in production systems, API design, database management, authentication/authorization, message queues, event-driven architecture, system integration, debugging, reliability engineering, security, data integrity, observability, incident management, trade-off analysis (speed vs correctness vs scalability).

Preferred skills

Fintech, payments, banking, wallet, KYC, fraud, or risk experience.

Technologies

None explicitly listed

Responsibilities

Build backend services and APIs for various financial flows; Design reliable systems supporting real customer transactions and operational workflows; Integrate with internal systems, financial partners, payment providers, AI services, and third-party platforms; Own backend quality across reliability, security, latency, observability, and data integrity; Collaborate with product, frontend, mobile, and AI teams to launch features; Improve existing systems by simplifying flows and automating processes.

Seniority

Senior, hands-on IC

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