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Senior Backend Engineer

London, England, United Kingdom💼 Full-time🗓 2026-09-10 → 2026-09-26

Core

Building the financial backbone (collections & treasury) including vIBAN provisioning, customer-facing APIs, and payment orchestration for cross-border transfers.

Role type

Senior Backend Engineer (Financial Systems)

Builds

Collections & Treasury foundation, vIBAN provisioning infrastructure, payment orchestration APIs

Domain

Fintech, Cross-border payments, Collections, Treasury

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

Go, System Architecture, API Design, Financial Systems Knowledge, Requirements Translation, Design-First Approach, Engineering Quality, Project Ownership

Preferred skills

Virtual Account Systems, Public API Design, Operational Resilience, Multi-rail Payment Orchestration

Technologies

Go

Responsibilities

Own architecture and implementation decisions for collections & treasury, Lead design work (RFCs, diagrams, API specs), Design and build customer-facing and internal APIs, Build reliable infrastructure for vIBAN provisioning, Drive engineering quality across API standards and testing, Manage delivery by breaking down complex work and sequencing milestones

Seniority

Senior, hands-on IC with leadership responsibilities

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