Senior Java Developer - (Java/Big Data)

Global Relay; City Of London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading technology firm in London is looking for an experienced Java Developer to join their Reporting product line. You will design and implement microservices and work with modern big data technologies. The ideal candidate has over 8 years of experience in Java development and a strong grasp of Agile methodologies. This position offers opportunities for growth, mentorship, and working in a diverse team.

Benefits

Competitive compensation

Diversity and inclusion programs

Career-building opportunities

Qualifications

• Minimum 8 years of Java development in an Agile environment.
• Experience with RESTful services and passion for Test Driven Development.

Responsibilities

• Design and implement microservices as part of an agile team.
• Migrate existing services to microservices.
• Write unit and integration tests for Java code.
• Monitor production systems and support their operation.

Skills

Java development

RESTful services

Test Driven Development

CI/CD

Good communication

Problem Solving

Self-starter

Team player

Tools

Kubernetes

Docker

Apache Spark

Flink

Airflow

Maven

Git

Jenkins

Job description

Overview

Who we are: For over 20 years, Global Relay has set the standard in enterprise information archiving with industry-leading cloud archiving, surveillance, eDiscovery, and analytics solutions. We securely capture and preserve the communications data of the world’s most highly regulated firms, giving them greater visibility and control over their information and ensuring compliance with stringent regulations.

Though we offer competitive compensation and benefits and all the other perks one would expect from an established company, we are not your typical technology company. Global Relay is a career-building company. A place for big ideas. New challenges. Groundbreaking innovation. It’s a place where you can genuinely make an impact – and be recognized for it.

We believe great businesses thrive on diversity, inclusion, and the contributions of all employees. To that end we recruit candidates from different backgrounds and foster a work environment that encourages employees to collaborate and learn from each other, completely free of barriers.

Your role

Joining the Reporting product line, you would work as a member of a highly focused team. This team specialises in Java-based data engineering, designing and delivering large-scale ETL workflows on a lake house platform. You’ll be working with modern big data technologies to move, transform, and optimise data for high-performance analytics and regulatory reporting. The environment encourages autonomy, problem-solving, and system-level thinking. If you’re passionate about clean, well-tested, performant code and enjoy working on complex data pipelines at scale, you’ll thrive here.

Tech stack

• Micro-services Container Platforms (Kubernetes, CRC, Docker)
• Big Data Technologies (Apache Spark, Flink, HDFS, Airflow, Trino, Iceberg, Hive)
• Dependency injection frameworks (Spring)
• Observability (Loki/Grafana)
• Large scale data processing (Kafka)
• CI/CD Build tools (Maven, Git, Jenkins)
• NoSQL DBs (CockroachDB, Cassandra, Zookeeper, ArangoDB)

Your responsibilities

• Design, implement and provide architectural guidance in deploying microservices as part of an agile development team
• Migrate existing services to microservices, with the goal of reducing complexity at the design and architecture level
• Write unit and integration tests for your Java code
• Collaborate with testers in development of functional test cases
• Develop deployment systems for Java based systems
• Collaborate with product owners on user story generation and refinement
• Monitor and support the operation of production systems
• Participate in knowledge sharing activities with colleagues
• Pair programming and peer reviews

About you

• Required Experience:
  • Minimum 8 years of Java development experience in an Agile environment, building scalable applications and services
  • Experience with RESTful services
  • Passion for Test Driven Development
  • CI/CD
• Attributes:
  • Good communication
  • Problem Solving
  • Self-starter
  • Team player

What you can expect

At Global Relay, there’s no ceiling to what you can achieve. It’s the land of opportunity for the energetic, the intelligent, the driven. You’ll receive the mentoring, coaching, and support you need to reach your career goals. You’ll be part of a culture that breeds creativity and rewards perseverance and hard work. And you’ll be working alongside smart, talented individuals from diverse backgrounds, with complementary knowledge and skills.

Global Relay is an equal-opportunity employer committed to diversity, equity, and inclusion.

We seek to ensure reasonable adjustments, accommodations, and personal time are tailored to meet the unique needs of every individual.

To learn more about our business, culture, and community involvement, visit www.globalrelay.com.