Senior Java Developer: Java 17, Spring & React

Optiveum; Warszawa; Hybrid; PLN 207,000 - 234,000; Full time

Benefits offered by this job

Hybrid work model

Office in Warsaw

Job summary

Optiveum invites an experienced Java Developer to join a leading Polish bank, delivering end-to-end backend development with Java 17+ and strong React frontend collaboration. You will design features, implement tests, and contribute to architecture while ensuring performance, security and reliability in a hybrid Warsaw setting.

The role requires 5+ years in OO programming, Spring Boot, REST/SOAP APIs, and DevOps collaboration.

Qualifications

• Min. 5 years of commercial OOP experience.
• Proficient in Java SE 17+ and Spring Boot/Integration.
• Commercial frontend experience with React.
• Good understanding of relational databases.
• Fluency with REST, SOAP, XML, JSON APIs.
• Familiar with CI/CD and tools: Git, Maven, Jira, Jenkins.
• Higher education degree in IT or a related field with strong analytical thinking.

Responsibilities

• Implementing new features and modifying existing applications and services.
• Designing new architectural solutions and analyzing available technical options.
• Creating unit and integration tests for built applications.
• Ensuring high software quality, focusing on performance, security, and reliability.
• Actively participating in project design phases and documenting implemented code.

Skills

Object-Oriented Programming

Java SE 17+

Spring Framework

React

Relational databases

REST/ SOAP/ XML/ JSON

CI/CD

Git

Maven

Jira

Jenkins

Education

Higher education IT or related field

Tools

Docker

Kubernetes

Git

Maven

Jira

Jenkins

GCP

Apache Kafka

IBM MQ

Google Pub/Sub

NoSQL

Job description

Optiveum invites an experienced Java Developer to join a leading Polish bank, delivering end-to-end backend development with Java 17+ and strong React frontend collaboration. You will design features, implement tests, and contribute to architecture while ensuring performance, security and reliability in a hybrid Warsaw setting.

The role requires 5+ years in OO programming, Spring Boot, REST/SOAP APIs, and DevOps collaboration.