Software Developer | Financial Services | Java, React

Software Engineer (Java + React) B2B | Kraków | 6 Days/Month On‑Site

Contract: B2BLocation: Kraków (6 days per month on‑site)Tech: Java, React, Microservices, PostgreSQLDomain: Investment Banking (Experience required)

About the RoleWe’re looking for an experienced software engineer to join a specialist client-services team supporting a global investment bank. You’ll work at the intersection of technology and business, delivering production-ready solutions that streamline onboarding journeys for some of the bank’s most strategic clients. This pod operates with autonomy, pace, and direct business alignment. Ideal for an engineer who thrives in a client-centric environment and wants to influence both architecture and delivery culture.

In This Role, You Will

• Deliver high-quality, production-ready code and contribute to system architecture aligned to microservices

• Drive faster, more reliable delivery across the team by leading by example

• Engage directly with business and engineering leadership to understand requirements and ensure alignment

• Bring ideas, solutions, and technical insight based on your understanding of broader programme needs

• Champion and elevate engineering culture, standards, and best practices

• Collaborate with global teams across multiple regions

• Proactively identify and remove impediments, communicate risks, and support programme management

• Spot process inefficiencies and introduce innovative, scalable improvements

What You Need to Succeed

Core Requirements

• Extensive experience in software engineering with a strong backend focus

• Proven ability to design, develop, and deploy backend applications in production environments

• Experience driving engineering and cultural change across teams

• Strong background in designing microservices and wider microservice architectures

• Experience leading teams to deliver high‑cadence, high-quality production releases

• Solid understanding of CI/CD best practices

• Experience designing and delivering RESTful APIs

• Strong experience writing schemas and working with PostgreSQL

• Previous experience in the financial sector, ideally banking or global markets

 Additional Skills (One or More of the Following)

• Strong commercial experience with Java (recent versions preferred)

• Experience with containers and orchestration (Docker, Kubernetes, GCP)

• Experience developing UI applications using ReactJS

• Experience migrating databases (e.g., MongoDB → PostgreSQL)

• Experience leading engineering across global teams

Why This Role Stands Out

• Direct impact on business-critical systems within a global investment bank

• A pod-based delivery model offering autonomy, ownership, and close collaboration

• Modern engineering practices and meaningful architectural influence

• Long‑term B2B engagement with stable, predictable on‑site expectations