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GCS

Senior Big Data Developer

Hybrid

Farnborough, United kingdom

Senior

Freelance

26-03-2026

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Skills

Communication Python Java SQL NoSQL Big Data CI/CD Docker Kubernetes Monitoring Databases Azure AWS software testing cloud platforms Spring GCP Snowflake Spark Spring Boot ETL Processes OpenShift Kafka PostGres

Job Specifications

Job Title: Senior Big Data Java Developer

Location: Farnborough, UK

Experience: 8+ years

Job Type: Contract Inside IR35

About the Role:

We are looking for a highly skilled Senior Big Data Java Developer to join our team. The ideal candidate will have a strong foundation in Java and Spring Boot, experience with modern UI technologies, and deep expertise in cloud-based data platforms and CI/CD practices. This role involves designing, developing, and maintaining scalable, high-performance solutions in a fast-paced, dynamic environment.

Key Responsibilities:

Design, develop, and maintain robust applications using Java and Spring Boot frameworks.
Build and implement API service architectures to support application and data workflows.
Work with front-end technologies to deliver integrated UI solutions.
Leverage CI/CD tools to streamline development, testing, and deployment processes.
Design, implement, and maintain solutions on cloud platforms (AWS, Azure, GCP) using services like S3, Snowflake, Postgres, Lambda, and DynamoDB.
Work with containerization and orchestration platforms such as Kubernetes or OpenShift.
Ensure high availability, scalability, and performance of applications through monitoring and tuning.
Collaborate with teams to implement software testing principles and best practices.
Work with various data platforms and manage data integration, migration, and transformation workflows.

Required Skills & Experience:

Strong proficiency in Java and Spring Boot.
Experience with at least one modern UI technology.
Hands-on experience with CI/CD tools and processes.
Experience with cloud storage and data platforms such as S3, Snowflake, and Postgres.
Experience with containerization (Docker) and orchestration (Kubernetes/Openshift).
Knowledge of building and implementing API service architectures.
Understanding of software testing methodologies.
Experience designing solutions for high availability and scalability.
Familiarity with performance monitoring and optimization.

Preferred / Nice-to-Have Skills:

4+ years in Data Platform Administration/Engineering or related field.
Hands-on experience with AWS solutions including Lambda, DynamoDB, Snowflake, and S3.
Knowledge of Data Warehouse technologies (Unix, Teradata, Ab Initio, Python, Spark, NoSQL).
Experience migrating ETL processes from relational warehouses to cloud-based solutions.
Experience with Big Data ecosystems, including Kafka, Spark, and NoSQL databases.
Strong expertise in SQL and relational databases.
Willingness to continuously learn and share knowledge with the team.
Ability to thrive in a fast-paced, rapidly changing environment.
Strong verbal and written communication skills.
Experience in the financial industry is a plus.

What We Offer:

Opportunity to work with cutting-edge technologies in a dynamic environment.
Collaborative and innovative team culture.
Professional development and continuous learning opportunities.
Competitive compensation and benefits package.

Visa Sponsorship is not provided for this role

About the Company

For over 30 years, GCS has been at the forefront of digital transformation, building vast global communities of innovators and placing them in businesses shaping tomorrow's world. Whether it’s the next step on your journey or if you are looking for an industry luminary, we are your partner of choice. Proud of our specialist service and passionate about our people, our customers only deal with true industry experts. Whether you are looking to add to your team or find a new contract or permanent position, GCS will ensure you... Know more