Senior Backend Java Developer Java 21+, REST API, Spring Boot Warszawa

DCG Poland; Town of Poland (NY); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Private medical care

Sports card subsidy

Dedicated consultant support

Job summary

DCG Poland is seeking an experienced backend software engineer to design, develop and maintain digital banking backend services. You will work in an agile team delivering reliable, scalable solutions and collaborate with stakeholders to translate business needs into technical design.

You should have strong Java 21+ experience, Spring Boot, REST APIs, and knowledge of databases like Oracle DB or DB2. English communication skills are essential for global collaboration and delivery.

Qualifications

• Strong experience in backend development using Java 21+ and REST APIs.
• Hands-on with Spring Boot 3.4, Spring WebFlux and Hibernate.
• Practical knowledge of Oracle DB, DB2 and SQL.
• Hands-on experience with Git, Maven and Jenkins.
• Practical experience in working with Splunk.
• Strong understanding of SOLID principles.
• Proven experience in test automation, including unit, integration, API and performance testing.
• Hands-on experience with Cucumber and WireMock.
• Proven experience in driving backend testing activities within an agile team.
• Ability to collaborate with business stakeholders and contribute to solution design.
• Experience in using AI-powered tools in software development and testing.
• Very good command of English, both spoken and written.

Responsibilities

• Design, develop, test and maintain backend services for digital banking platforms.
• Drive backend testing activities within an agile team.
• Ensure delivery of high-quality, reliable and scalable solutions.
• Collaborate with business stakeholders to gather requirements and support solution design.
• Support analysis activities and translate business needs into technical solutions.
• Use AI-powered tools in development, testing and delivery processes.
• Contribute to technical design, implementation, continuous improvement and operational support.
• Work within a cross-functional agile team delivering customer-facing digital banking services.

Skills

Java 21+

REST APIs

Microservices

Spring Boot 3.4

Spring WebFlux

Hibernate

Git

Maven

Jenkins

Splunk

SOLID principles

Test automation

Cucumber

WireMock

AI-powered tools

English proficiency

Tools

Angular 2+

AngularJS

Playwright

qTest

Gherkin

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, test and maintain backend services for digital banking platforms
• Drive backend testing activities within an agile team
• Ensure delivery of high-quality, reliable and scalable solutions
• Collaborate with business stakeholders to gather requirements and support solution design
• Support analysis activities and translate business needs into technical solutions
• Use AI-powered tools in development, testing and delivery processes
• Contribute to technical design, implementation, continuous improvement and operational support
• Work within a cross-functional agile team delivering customer-facing digital banking services

Requirements

• Strong experience in backend development using Java 21+, REST APIs and microservices
• Hands-on experience with Spring Boot 3.4, Spring WebFlux and Hibernate
• Practical knowledge of Oracle DB, DB2 and SQL
• Hands-on experience with Git, Maven and Jenkins
• Practical experience in working with Splunk
• Strong understanding of SOLID principles
• Proven experience in test automation, including unit, integration, API and performance testing
• Hands-on experience with Cucumber and WireMock
• Proven experience in driving backend testing activities within an agile team
• Ability to collaborate with business stakeholders and contribute to solution design
• Experience in using AI-powered tools in software development and testing
• Very good command of English, both spoken and written

Nice to have

• Understanding of reactive programming concepts
• Practical experience with Angular 2+ and AngularJS
• Hands-on experience with Playwright and qTest
• Practical knowledge of Gherkin

Offer

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

Personal Consulting Agency (License No. 4642)