JAVA Backend Engineer

DCV Technologies; Gloucester; On-site; GBP 90,000 - 120,000; Full time

Job summary

DCV Technologies is seeking a Senior Java Backend Engineer in the United Kingdom to design, implement, and optimize real-time, low-latency data processing platforms. You will work on enterprise-grade backends, capturing, processing, transforming, and distributing real-time data across systems with a focus on reliability, scalability, and performance.

Applicants should bring 8+ years of Java backend experience, strong Spring Boot and microservices skills, and proven expertise in Kafka, CDC

Qualifications

• 8+ years backend development with Java.
• Experience building ultra-low-latency systems.
• Real-time data synchronization across platforms.
• Proven Kafka, event streaming, and asynchronous architectures experience.
• CDC implementations with Debezium or similar.
• Cloud-native development experience.

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 using Spring Boot.
• Profile, tune, and optimize performance.
• Develop APIs and backend services with sub-second response times.
• Architect distributed systems with high throughput and low latency.
• Implement resilient systems with caching and asynchronous processing.
• Perform code reviews and root-cause analysis.

Skills

Java 17+

Low-latency design

Distributed systems

Event-driven architectures

Kafka

Spring Boot

Microservices

JVM tuning

Cloud platforms

Real-time data processing

Tools

Dynatrace

Splunk

Grafana

Kafka Streams

Kafka Connect

Debezium

Kubernetes

Docker

CI/CD

Job description

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