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

DCG Poland; 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

DCG Poland is seeking a Java Backend Developer to design, develop, and maintain backend services in a microservice environment. The ideal candidate will have a minimum of 5 years of commercial experience and strong analytical and problem-solving skills.

The role involves collaborating with stakeholders in an Agile/Scrum environment, ensuring high code quality, and optimizing data flows and integrations. The company offers private medical care and support from dedicated consultants.

Qualifications

• Minimum 5 years of commercial experience as a Java Backend Developer.
• Strong experience with Java-based backend services.
• Ability to analyze end-to-end data flow across systems.

Responsibilities

• Design, develop, and maintain Java-based backend services.
• Implement data flows and integrations between systems.
• Collaborate with Product Owners and analysts in an Agile/Scrum environment.

Skills

Java Backend Development

Microservices

Data Integration

Analytical Skills

Problem-Solving

Communication Skills

Tools

Angular

React

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