Java Developer - Build Scalable Microservices (Spring Boot)

EveryMatrix; Greater London; Hybrid; GBP 70,000 - 100,000; Full time

Benefits offered by this job

25 days annual leave + 5 extra over 5y

Hybrid work after 3 months

Private medical insurance

Monthly meal allowance

Gym allowance

Udemy for Business & LinkedIn Learning

Two Free Fridays per year

3 sick leave days

Job summary

EveryMatrix in London is hiring a Middle Java Developer to help shape data-driven decisions across our iGaming CRM platform. You will build and maintain microservices with Java 21+ and Spring Boot, write efficient SQL for PostgreSQL and ClickHouse, and collaborate with DevOps, Front End, Product and QA.

The role rewards strong problem solving, a curious, collaborative mindset, and clear communication. We offer hybrid work after three months, generous annual leave, private medical insurance, meal

Qualifications

• 3+ years of commercial Java development experience.
• Strong knowledge of Java 21+ and Spring Boot.
• Good experience with Linux and bash scripting.
• Experience with SQL databases and writing optimised queries.
• Experience with ClickHouse is a plus, but not required.
• Experience with Kafka (Avro a plus) is a plus, but not required.
• Experience with a wide range of enterprise Java and Spring components, including Spring Data JPA.
• Experience with containerisation technologies such as Docker and Kubernetes.
• Experience with stream processing frameworks such as Apache Flink is a plus but not required.
• Familiarity with OpenID and SSO mechanisms is a plus but not required.
• Understanding of core microservice concepts such as service discovery and API gateway.
• Exposure to gaming/sports betting is a plus but not required.

Responsibilities

• Develop, maintain, and enhance microservice applications using Java 21+ and Spring Boot.
• Design and implement scalable, resilient, and high-performance solutions.
• Work with relational and OLAP databases, writing efficient SQL queries in PostgreSQL and ClickHouse.
• Develop code to process complex data structures to/from Kafka.
• Ensure best practices in microservice architectures, including API design, scalability and security.
• Collaborate with DevOps, Front End, Product and QA teams.
• Participate in code reviews and continuous improvement initiatives.

Skills

Java 21+

Spring Boot

SQL

Kafka

Docker

Kubernetes

PostgreSQL

ClickHouse

Linux

OpenID

Microservices

APIs

Tools

PostgreSQL

ClickHouse

Kafka

Docker

Kubernetes

Apache Flink

OpenID

Job description

EveryMatrix in London is hiring a Middle Java Developer to help shape data-driven decisions across our iGaming CRM platform. You will build and maintain microservices with Java 21+ and Spring Boot, write efficient SQL for PostgreSQL and ClickHouse, and collaborate with DevOps, Front End, Product and QA.

The role rewards strong problem solving, a curious, collaborative mindset, and clear communication. We offer hybrid work after three months, generous annual leave, private medical insurance, meal