Senior Full-Stack Engineer: Java/Kotlin & React, Event-Driven

JUXT; Greater London; On-site; GBP 95,000 - 130,000; Full time

Job summary

JUXT is partnering with a Tier 1 investment bank on a major transformation of its Prime Finance Equities platform. You will engineer live, financially critical systems using Java/Kotlin and React/TypeScript, delivering modern, cloud-native solutions with event-driven architecture.

You will design for failure handling, data integrity, and scalable delivery, applying TDD across unit, integration, and E2E tests, and working with Kafka, SQL Server, MongoDB, Docker, Kubernetes/OpenShift, and CI/CD

Qualifications

• Experience delivering live, financially critical trading/post-trade systems.

Responsibilities

• Build Java/Kotlin event-driven services and modern React/TypeScript applications.

Skills

Java/Kotlin

React/TypeScript

Event-driven architecture

TDD

Capital markets/trading experience

Architectural instincts

CI/CD

Kafka-based systems

Tools

Java

Kotlin

React

TypeScript

Kafka

Solace

TIBCO EMS

SQL Server

MongoDB

Docker

Kubernetes

OpenShift

CI/CD tooling

OpenTelemetry

ELK

Grafana

Redux

WebSockets

Job description

JUXT is partnering with a Tier 1 investment bank on a major transformation of its Prime Finance Equities platform. You will engineer live, financially critical systems using Java/Kotlin and React/TypeScript, delivering modern, cloud-native solutions with event-driven architecture.

You will design for failure handling, data integrity, and scalable delivery, applying TDD across unit, integration, and E2E tests, and working with Kafka, SQL Server, MongoDB, Docker, Kubernetes/OpenShift, and CI/CD