JAVA Backend Engineer

Gloucester Source: WhatJobs

£90,000–£120,000

Our banking client is currently looking for a highly skilled Senior Java Backend Engineer with 8+ years of experience in designing, developing, and optimizing real-time, low-latency data processing platforms . The ideal candidate should possess strong expertise in Java, distributed systems, event-driven architectures, streaming technologies, and data engineering frameworks to build scalable solutions capable of processing high-volume data changes with minimal latency.

This role requires hands‑on experience in developing enterprise‑grade backend applications that capture, process, transform, and distribute real-time data across multiple systems while ensuring reliability, scalability, and performance

Required Experience

8+ years of backend application development experience using Java.
Experience building ultra-low-latency systems (
Experience handling systems processing millions of events/transactions daily.
Real‑time data synchronization across multiple platforms.
Strong expertise in low‑latency application design and performance optimization.
Proven experience with Kafka, event streaming, and asynchronous architectures.
Experience implementing Change Data Capture (CDC) solutions using Debezium or similar technologies.
Experience with cloud‑native application development.

Your responsibilities:

Design and develop highly scalable, low-latency, fault-tolerant backend applications using Java.
Build real-time data processing solutions for high-volume transactional systems.
Develop event-driven architectures using messaging and streaming technologies.
Design and implement microservices-based applications using Spring Boot.
Optimize application performance through profiling, tuning, and efficient resource utilization.
Develop APIs and backend services supporting sub‑second response times.
Architect distributed systems with high throughput and minimal latency.
Implement resilient systems using caching, asynchronous processing, and circuit breaker patterns.
Perform code reviews and enforce engineering best practices.
Troubleshoot production issues and perform root cause analysis.

Your Profile

Essential skills/knowledge/experience:

Strong experience in Java 17+
Solid experience with Spring Boot, Microservices
Experience in working with Dynatrance, Splunk, Grafana
Expertise in Apache Kafka, Kafka Streams, Kafka Connect
Expertise in Change Data Capture (CDC) solutions using Debezium or similar technologies.
Real Time Streaming & Event-Driven architectures
Performance engineering concurrency & JVM tuning
SQL & Data Engineering Fundamentals
Kubernetes, Docker & CI/CD Pipelines
Cloud Platform Experience (Azure, Aws, Google)
Experience in Latency analysis and optimization
Excellent English communication skills