Senior Java Developer – Credit Data Sourcing Java, microservices Łódź, Warszawa, Gdańsk

Diverse CG Sp. z o.o. Sp.k.; Town of Poland (NY); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Private medical care

Co-financing for the sports card

Constant support of dedicated consultant

Job summary

Diverse CG Sp. z o.o. Sp.k. seeks an experienced Java Backend Developer in New York, Town of Poland. This role involves designing and maintaining Java-based backend services and collaborating closely with Business Analysts in an Agile environment.

Candidates should have a minimum of 5 years of experience in similar roles, with a strong focus on microservices and data flows. The package includes private medical care and additional benefits like sports card co-financing.

Qualifications

• Minimum 5 years of experience as a Java Backend Developer in microservice environments.
• Strong analytical skills and ownership mindset.
• Effective communication in English.

Responsibilities

• Design, develop, and maintain Java-based backend services.
• Collaborate with Business Analysts on solution design.
• Ensure high code quality through testing and best practices.

Skills

Java

Microservices

Data integration

Agile methodologies

Problem-solving

Job description

As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for:

Responsibilities

• Design, develop, and maintain Java-based backend services and microservices
• Implement, optimize, and support data flows and integrations between systems
• Work closely with Business Analysts on user stories, acceptance criteria, and solution design
• Translate business requirements into robust, scalable, and maintainable technical solutions
• Analyse system behaviour, logs, and incidents to identify root causes and support production stability
• Participate in refinement sessions, technical design discussions, daily team work, and release coordination
• Ensure high code quality through proper testing, performance awareness, and adherence to engineering best practices
• Collaborate with Product Owners, analysts, developers, and business stakeholders in an Agile/Scrum environment

Requirements

• Minimum 5 years of commercial experience as a Java Backend Developer, preferably in microservice-based environments
• Strong experience with Java-based backend services and microservices
• Solid understanding of data flows, data sourcing systems, and integration-heavy solutions
• Ability to analyse end-to-end data flow across systems and assess the impact of changes on upstream and downstream processes
• Experience working with complex, distributed systems
• Ability to work closely with Business Analysts, challenge requirements, clarify assumptions, and contribute to solution design
• Strong analytical and problem-solving skills
• Ownership mindset and the ability to take responsibility for delivery
• Good communication skills with both technical and business stakeholders
• Very good command of English, allowing effective communication in an international environment

Nice to have

• Experience with Angular or React
• Knowledge of credit risk or banking systems
• Experience with event-driven architectures
• Performance tuning experience in data-heavy systems

Offer

• Private medical care
• Co‑financing for the sports card
• Constant support of dedicated consultant