Expert Java Consultant

Type of contract: B2B contract

Salary range: 155-205 PLN/H

What will you do?

You will work on large-scale financial services platforms supporting investment banking operations, focusing on digital transformation, process automation, data integration, and application modernization initiatives. The role involves designing and delivering high-performance, real-time data solutions, driving architecture decisions, and collaborating with business and technology stakeholders in a highly regulated environment.

Your tasks

• Design and develop enterprise-grade Java applications and microservices
• Build high-performance real-time streaming and time-series data platforms
• Lead architecture and technical design discussions across teams
• Implement process automation and system modernization initiatives
• Integrate distributed systems and data platforms using event-driven architectures
• Collaborate with business stakeholders to translate requirements into scalable solutions
• Ensure application security, reliability, scalability, and performance
• Promote AI-assisted software development practices and engineering excellence
• Support cloud-native deployments and platform optimization on Azure

Requirements

• 15+ years of experience with Java development
• Strong expertise in Flowable and Spring Boot
• Experience with ORM frameworks including JPA and iBatis
• Knowledge of Azure AD, OAuth and application security best practices
• Hands-on experience with Kafka and event-driven architectures
• Experience with Cosmos DB, PostgreSQL and Redis
• Experience designing and developing REST APIs, microservices and distributed systems
• Strong knowledge of Microsoft Azure, Docker and Kubernetes
• Experience with Maven, Gradle and modern CI/CD practices
• Expertise in high-performance, high-throughput real-time data platforms and streaming architectures
• Strong understanding of Computer Science fundamentals and SDLC
• Experience with AI-assisted software development
• Excellent communication skills and ability to translate business requirements into scalable technology solutions
• Openness to work hybrid from our client's office (Kraków or Wrocław) 3 days a week

Nice to have

• Experience in the Client Lifecycle domain