Senior Fullstack Developer Java, API, Hibernate Warsaw, Gdańsk, Gdynia

Job in Town of Poland, Jamestown, Chautauqua County, New York, 14701, USA

Listing for: Diverse CG Sp. z o.o. Sp.k.

Full Time position
Listed on 2026-06-06

Job specializations:

Software Development
Backend Developer, Full Stack Developer, Java Developer, Cloud Engineer - Software

Salary/Wage Range or Industry Benchmark: 125000 - 150000 USD Yearly USD 125000.00 150000.00 YEAR

Location: Town of Poland

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:

Senior Fullstack Developer

Responsibilities:

Develop and maintain new features for a modern corporate digital banking platform
Build and improve API solutions supporting key banking services such as accounts, payments, file transfer, and international/local services
Contribute to the modernisation of the legacy Corporate Netbank platform
Work with backend services based on microservice and monolithic architecture
Design and implement resilient, scalable, and maintainable software solutions
Follow Domain-Driven Design principles and port‑adapter architecture
Collaborate closely with developers, Product Owners, architects, analysts, and QA engineers
Support maintenance, compliance, and platform improvement activities
Participate in Agile ceremonies and contribute to team planning and delivery
Ensure high quality of delivered software through clean code, testing, and best engineering practices

Requirements:

At least 6 years of hands‑on experience in Java development
Around 2 years of experience with Angular
Strong experience in building API solutions
Working knowledge of Spring and Hibernate
Experience with reactive programming
Experience with REST, microservices, SQL, and Git
Knowledge of Cucumber framework
Good understanding of SOLID principles and design patterns
High level of software development skills and engineering mindset
Experience working in an Agile environment, preferably SAFe
Strong collaboration skills and focus on quality and timely delivery
Fluency in English

Nice to have:

Working knowledge of unit testing in Jasmine
Experience working in banking or financial services projects

Offer:

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

Personal Consulting Agency (License No. 4642)

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