Senior Java Fullstack Engineer - Microservices & Security

Optiveum; Warszawa; Hybrid; PLN 116,000 - 193,000; Full time

Job summary

Optiveum is seeking a Senior Fullstack Developer to join our client’s banking domain team. You will design, develop, test and maintain Java/Spring Boot/Angular applications, with a focus on performance and security.

You will work in a hybrid model with 60% office presence in Poland, contributing to REST APIs, microservices and CI/CD pipelines. Fluent English and strong problem-solving are essential.

Qualifications

• 5+ years of experience in Full Stack Java development.
• Strong skills in Java, Spring Boot, microservices and REST APIs.
• Angular and Angular Material experience.
• Kafka and SQL databases experience.
• Docker, Kubernetes, Git, Bitbucket, Jenkins and CI/CD experience.
• Experience resolving SAST, container scan and other security vulnerabilities.
• Knowledge of secure coding and OWASP principles.
• Agile/Scrum way of working.
• Fluent English.

Responsibilities

• Designing, developing, testing and maintaining applications using Java, Spring Boot, Angular, Kafka, SQL, Docker and Kubernetes.
• Developing and enhancing microservices-based solutions following clean code principles and best practices.
• Building and maintaining REST APIs and integrations with internal and external systems.
• Identifying and remediating security vulnerabilities through scanning and assessments.
• Driving secure coding practices and improving the security posture of internet-facing applications.
• Analysing, troubleshooting and resolving defects, incidents and production issues.
• Supporting CI/CD processes with Git, Bitbucket and Jenkins.
• Optimising application performance, scalability, resilience and maintainability.
• Collaborating with Product Owners, Analysts, Architects, Security Specialists and Operations teams, and taking part in Agile/Scrum ceremonies.
• Creating and maintaining technical documentation and operation guidelines.
• Using AI-powered tools and contributing to AI-adoption in the Cards domain.

Skills

Java

Spring Boot

Angular

Kafka

Microservices

REST APIs

Security awareness

Agile/Scrum

English

AI tools (basic)

Tools

Docker

Kubernetes

Git

Bitbucket

Jenkins

CI/CD

SAST

OWASP

GitHub Copilot

Microsoft 365 Copilot

Job description

Optiveum is seeking a Senior Fullstack Developer to join our client’s banking domain team. You will design, develop, test and maintain Java/Spring Boot/Angular applications, with a focus on performance and security.

You will work in a hybrid model with 60% office presence in Poland, contributing to REST APIs, microservices and CI/CD pipelines. Fluent English and strong problem-solving are essential.