April 8, 2026
Mid-Level Java & React Developer – Payments Platform, Microservices
Mid • Hybrid
1,100 - 1,300 PLN
Krakow, Poland
Unleash innovation — shape the future of digital payments
Krakow-based opportunity with hybrid work model (up to 3 remote days per week)
As a Mid-Level Java & React Microservices Engineer – Payments Platform, you will be working for our client, a leading provider in the financial technology industry. You will contribute to the development and support of the Global Disbursements platform, enabling customers worldwide to move funds rapidly and securely—fueling seamless global transactions, paying suppliers, allocating salaries, settling taxes, and transferring money across multiple channels. Join us and be part of a transformative journey in modern payments technology, fostering innovation and growth in your career.
Your main responsibilities:
Building and supporting microservices and applications (both front-end and back-end) using Java 11/17/21 and ReactJS, ensuring high-quality standards and reliability.
Migrating from mainframe systems and IBM WebSphere to modern API and microservices architectures to reduce costs and complexity.
Implementing automation testing frameworks to decrease testing costs and increase efficiency.
Enhancing Straight-Through Processing (STP) capabilities of services to streamline transaction flows.
You're ideal for this role if you have:
Minimum of 4 years of experience in software development, particularly in Java and React environments.
Proficiency with Java 11+, preferably Java 17+.
Hands-on experience with Kubernetes, Git, and Unix-based systems.
Strong knowledge of database technologies and SQL, especially Oracle.
Solid understanding of RESTful microservices and APIs.
Experience working within a DevOps delivery team is a plus.
Familiarity with application monitoring and Spring/Spring Boot is desirable.
It is a strong plus if you have:
Certifications or experience in automation testing frameworks.
Knowledge of Web technologies and JavaScript.
Language Required for the role:
Fluent English
Eligibility for the role:
Only candidates with an existing legal right to work in the European Union will be considered for this role.
We offer you:
ITDS Business Consultants is involved in various, innovative, and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes:
Stable and long-term cooperation with very good conditions
Enhance your skills and develop your expertise in the financial industry
Work on the most strategic projects available in the market
Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years
Participation in Social Events, training, and work in an international environment
Access to an attractive Medical Package
Access to Multisport Program
#GETREADY
Internal job ID #8860
You can report violations in accordance with ITDS’s Whistleblower Procedure available here.
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Krakow, Poland
23,100 - 28,350 PLN
🏢 Summary: Full Stack Developer role focused on migrating critical banking reporting systems to the cloud and building scalable web applications in a microservices architecture. The position combines Java and React development with cloud technologies to enhance data and reporting platforms. Work in an agile, cross-country team delivering secure, high-quality financial solutions. 🗂️ Requirements: 3+ years experience in large-scale full-stack web applications, Experience with microservices architecture, Proficiency in Java 17+, Strong knowledge of Spring and Spring Boot, Experience in RESTful API development, Expertise in ReactJS, Strong knowledge of JavaScript and TypeScript, Hands-on experience with Google Cloud Platform, Experience with relational databases or data warehouses, Experience with Git and SCM systems, Knowledge of CI/CD pipelines, Fluent English, Legal right to work in the EU 📃 Skills: Java, Spring, SpringBoot, REST, ReactJS, JavaScript, TypeScript, GCP, PostgreSQL, BigQuery, AlloyDB, Git, GitHub, Jenkins, Microservices, CI/CD 🏢 Description: Unleash innovation at the intersection of cloud, data, and full-stack development — shape the future of banking technology! Krakow-based opportunity with hybrid work model (up to 3 days remote per week). As a Java & React Full Stack Developer , you will be working for our client, a leading global financial institution, supporting the transformation of their data and reporting systems within the International Wealth & Premier Banking division. You will be instrumental in migrating critical reporting platforms to the cloud and developing scalable, web-based applications that enhance decision-making and operational efficiency. Join a dynamic team committed to technological excellence and career growth in the finance sector. Your main responsibilities: Independently design, develop, test, and deploy web applications in a collaborative, cross-country environment. Support the migration of existing reporting systems to cloud-based platforms, ensuring seamless transition and minimal disruption. Mentor and guide team members, facilitating knowledge transfer and best practices for technology stack evolution. Ensure development adherence to IT methodologies, security standards, and documentation requirements. Work in an agile environment to deliver high-quality features aligned with client needs. You're ideal for this role if you have: 3+ years of experience in delivering large-scale full-stack web applications with microservice architecture. Strong proficiency in Java (Java 17+ preferred), Spring/Spring Boot, and RESTful API development. Expertise in ReactJS, JavaScript, and TypeScript. Hands-on experience with Google Cloud Platform products. Working knowledge of relational databases/data warehouses such as PostgreSQL, BigQuery, or AlloyDB. Experience with Git and SCM systems like GitHub. Knowledge of data visualization tools (e.g., Apache ECharts) is an advantage. Understanding of CI/CD pipelines, particularly Jenkins. It is a strong plus if you have: Certifications or experience in cloud architecture or DevOps practices. Language Required for the role: Fluent English communication skills are essential. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.