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GIOS Technology Limited

Java backend Developer

Hybrid

Bournemouth, United kingdom

Freelance

07-01-2026

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Skills

Python Java SQL Data Engineering Apache Kafka CI/CD DevOps Docker Kubernetes Monitoring Architecture Programming Databases apache AWS AWS Cloud Analytics Spring Spark Spring Boot CI/CD Pipelines Databricks Kafka Prometheus Flink Microservices

Job Specifications

We are looking for Java backend Developer at Bournemouth, UK

About the Role:

Design, develop, and maintain scalable microservices using Java and Spring Boot.
Build and optimize real-time data pipelines leveraging Apache Kafka, Flink, and Spark/Databricks.
Develop robust data distribution and streaming solutions for high-throughput systems.
Deploy, manage, and monitor services in containerized environments (Docker/Kubernetes).
Write efficient and optimized SQL queries for relational databases.
Integrate and manage applications in AWS cloud environments.
Collaborate with cross-functional teams to ensure smooth delivery and integration of features.
Implement monitoring and observability solutions (e.g., Datadog) for system health and performance tracking.
Maintain high standards of code quality, reliability, and security.

Primary Skillset:

Strong programming skills in Java and Spring Boot.
Hands-on experience with Microservices architecture and RESTful APIs.
Proficiency with Kafka and distributed streaming systems.
Solid understanding of SQL and data modelling.
Experience with containerization (Docker) and orchestration (Kubernetes).
Working knowledge of Flink, Spark, or Databricks for data processing.
Familiarity with AWS services (ECS, EKS, S3, Lambda, etc.).
Basic scripting in Python for automation or data manipulation.

Secondary Skillset:

Experience with Datadog, Prometheus, or other monitoring tools.
Exposure to CI/CD pipelines and DevOps practices.
Knowledge of data engineering best practices and real-time analytics.

Key Skills to be focussed on :

Core Java( Concurrency/Multithreading) – Expert
Core Java ( Collections, Objects) -Expert
Spring -Expert
Kafka- Intermediate or above
SQL and No SQL DB – Intermediate or above
Hands-on with Flink, Spark, or Databricks for data processing

About the Company

Welcome to GIOS: Your Partner in Innovation. At GIOS Technology, we are committed to driving innovation and delivering exceptional solutions to clients worldwide. With a global presence spanning multiple countries, we cater to both private and public sector clients, providing comprehensive support and executing projects that meet their diverse needs. Our strength is built on Collaboration, by harnessing our internal expertise and partnering with leading technology vendors such as Elastic, Qlik, AWS, Google, Microsoft, Orac... Know more