CareerPlanSign in

Senior Software Engineer | Backend

London💼 Full-time🗓 2026-08-18 → 2026-09-26

Core

Build and scale the backend powering core fintech product lines like Bill Pay and Apron Card, including fraud detection systems.

Role type

Senior Backend Software Engineer

Builds

Core payment and financial management products for small businesses

Domain

Fintech / Payments

Deliverable

production ML models | product features

Required skills

JVM-based languages (Kotlin), relational databases, code quality, efficient architecture, performance optimization

Preferred skills

Kubernetes, Terraform, Postgres (GIST indexes, partitioning, replication)

Technologies

Kotlin, Kubernetes, Terraform, Postgres

Responsibilities

Design financial integrations balancing security and speed; collaborate cross-functionally to ship features from discovery to production; share expertise to drive team innovation and raise the bar

Seniority

Senior, hands-on IC

Sourced via ashby · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.