Senior Java Developer at Sigma Software in Warsaw, Poland

Job Description

We are seeking an experienced and visionary Senior Java Developer to play a key role in our software development initiatives. This project requires a developer who can plan, build, and deliver tasks as part of a team. As a solid group, we share responsibility for product delivery, including speed, efficiency, and quality. We also take full responsibility for the operational conditions of what we deliver. As an individual, you need to take ownership, drive initiatives forward, suggest improvements, and incorporate them in all areas. If this approach resonates with you, we invite you to join us!

Good To Have:

Knowledge of Kotlin

Must Have:

5+ years of experience with Java
Proficiency in Spring Boot
Experience with Kafka and RabbitMQ
Ability to design Back-end services
Solid understanding of MySQL
Experience with microservice architectures

Add these skills to join the top 1% applicants for this job

cross-functional

mysql

rabbitmq

spring-boot

back-end

kotlin

java

Overview

Required skills

Java core / expert

Spring Boot / strong

RabbitMQ / strong

MySQL / strong

Kotlin / strong

We are seeking an experienced and visionary Senior Java Developer to play a key role in our software development initiatives. This project requires a developer who can plan, build, and deliver tasks as part of a team. As a solid group, we share responsibility for product delivery, including speed, efficiency, and quality. We also take full responsibility for the operational conditions of what we deliver.
As an individual, you need to take ownership, drive initiatives forward, suggest improvements, and incorporate them in all areas.

If this approach resonates with you, we invite you to join us!

Customer

Our Customer owns one of the largest mobile gambling platforms, which has millions of users.

Project

We work with a large company on a project using a startup approach. We use a state-of-the-art technology stack.

This new, proprietary, multi-brand platform will enable the Swedish operator to launch new brands under a collective name with a high level of flexibility and scalability.

Requirements

5+ years of experience with Java, including Java 8-17
Proficiency in Spring Boot
Experience with messaging systems such as Kafka and RabbitMQ
Ability to design and implement Back-end services from scratch
Solid understanding of relational databases, particularly MySQL
Experience in building scalable, fault-tolerant systems and working with microservice architectures

Would be a plus

Knowledge of Kotlin

Responsibilities

Design, develop, and maintain Java-based applications
Collaborate with cross-functional teams to define, design, and release new features
Write clean, maintainable, and efficient code following best engineering practices
Optimize application performance and troubleshoot issues
Participate in code reviews to ensure high-quality software development
Work with databases, APIs, and third-party integrations
Stay up –to date with the latest Java technologies and frameworks