CareerPlan

Senior Backend Product Engineer

LondonFull-time£95k–£125k2026-10-21 → 2026-11-12

Core

Design, build, and run mission-critical backend systems for the full trade lifecycle (Pre-Trade, Trade, Post-Trade) covering structured investments, equity IPOs, hedging, and ETFs.

Role type

Senior Backend Product Engineer

Builds

Capital markets trading platforms and agentic AI features

Domain

Financial services / Capital markets

Deliverable

production ML models

Required skills

Kotlin, Spring Boot, Postgres, Kafka, Kubernetes, AWS, CI/CD, REST API design, relational database design, unit/integration/E2E testing, AI agent development, technical leadership

Preferred skills

Elasticsearch, Terraform, TypeScript, React, full-stack development, financial services domain knowledge

Technologies

Kotlin, Spring, Postgres, Elasticsearch, Kafka, Kubernetes, AWS, GitHub, ArgoCD

Responsibilities

Design and build backend systems for trade lifecycle stages, implement agentic AI features, mentor less experienced engineers, own testing and quality assurance, collaborate with product managers and business stakeholders

Seniority

Senior, hands-on IC with technical leadership