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Offer summary
(Summary generated by AI based on the full job description)
The project involves migration of large business volumes within the banking sector, supporting the Safekeeping and Corporate Actions platform. Technologies include Java, Spring Boot, Spring Integration, microservices, REST, and event-driven integration with IBM MQ and Kafka. Responsibilities cover design, development, testing, deployment of backend integration components, and production support. The rate is 140 - 170 PLN/hour.
Senior / Expert Java Developer
Company: OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
from: 9 July 2026
to: 8 August 2026
140 - 170 złnet (+ VAT)/ hr.B2B contract (full-time)
Salary details
basic salary
Offer parameters
level:senior • expert
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
Java
Spring Boot
Spring
SQL
Maven
Git
JUnit
Testcontainers
Optional technologies
Oracle
Kubernetes
Operating system
Windows
Linux
Our requirements
- Experience: Min. 5 years (for Senior) or 10+ years (for Expert) of Java backend development in large-scale enterprise environments.
- Core Stack: Java, Spring Boot, Spring Integration.
- Architecture & Integrations: REST services, microservices, and integration patterns.
- Messaging: Event-driven integration platforms (preferably IBM MQ and Kafka).
- Databases: Strong SQL and relational database knowledge (preferably Oracle).
- DevOps & Testing: Maven, Git, CI/CD pipelines, and automated testing (JUnit, Testcontainers).
- Languages: Fluent English (both written and spoken).
Optional
- Previous experience in banking, trading, custody, settlement, or other regulated domains.
- Familiarity with cloud-ready application design and containerization (Kubernetes).
- Experience modernizing legacy systems or building layers around vendor platforms.
- Practical use of AI-assisted development tools and static code analysis.
Your responsibilities
- Design, develop, test, deploy, and support Java-based microservices and integration components.
- Connect internal security systems with other banking infrastructure using event-driven architectures.
- Analyze business requirements, document dependencies, and troubleshoot complex production issues.
- Contribute to the team's growth by sharing knowledge, promoting best development practices, and mentoring junior colleagues.
- Work in a Scrum environment (JIRA), filling in the blanks in requirement analysis and test case preparation when bottlenecks occur.
About the project
Our client is a major international player in the banking industry. You will be joining their IMSecurities department, contributing to a large-scale technological transformation involving the migration of massive business flows and volumes projected through 2027–2029.
The Role
We are looking for a Senior or Expert Java Developer to design, build, and modernize backend integration components for a core Safekeeping and Corporate Actions platform. You will be joining an expanding, agile team (scaling from 8 to 15 developers), working hands-on with the code while occasionally stepping up to lead analysis and deployment orchestration.
This is how we organize our work
This is how we work
at the client's siteyou focus on a single project at a timeyou develop several projects simultaneouslyyou have influence on the productyou focus on product developmentyou focus on code maintenanceagilescrum
This is how we work on a project
- architect / technical leader support
- team-level deployment
- documentation
- issue tracking tools
- test automation
- testing environments
What we offer
- Salary: 140 - 170 PLN / hour (B2B).
- Type of Work: Hybrid (50% remote / 2-3 days a week in the office).
- Location: Gdańsk or Warsaw.
Benefits
- remote work opportunities
- integration events
OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Optiveum is a recruitment and consulting company created based on our 20-plus years of experience in HR & IT services.
We work for Clients located in Poland and abroad providing our local and international Candidates with Project-based or Permanent job opportunities in a remote or office-based model.
This is how we work
Senior / Expert Java Developer
140–170 zł / hr. (B2B)
I apply to:
OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Warszawa, Masovian
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