Senior Fullstack Developer – Digital Banking Java, Spring Boot, REST APIs Warszawa, Gdańsk, Gdynia

DCG; Polska; Híbrido; PLN 180.000 - 240.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Private medical care

Co-financing for the sports card

Dedicated consultant support

Descripción de la vacante

DCG, acting as a recruitment partner, seeks a seasoned Java Backend Developer to design, build, test, and maintain backend services for large-scale digital banking platforms. You will own backend testing in an Agile team, ensuring quality and performance while collaborating with stakeholders on robust technical solutions.

You will contribute across the full SDLC, using AI-assisted coding tools to boost efficiency and automation, and work with cross-functional peers to deliver secure, scalable

Formación

• 6+ years of professional software dev experience focusing on Java backend
• Experience with Java (JDK 21+) and Spring Boot 3.5, with knowledge of newer versions
• Practical knowledge of Git, Maven, and OpenAPI (Swagger)
• Familiarity with CI/CD pipelines, release procedures, and Jenkins
• Experience with unit and integration testing using JUnit 5, AssertJ, and WireMock
• Knowledge of SQL, JDBC, Spring Template, and Hibernate ORM
• Familiarity with IntelliJ IDEA, VS Code, and API testing tools (Bruno, IntelliJ HTTP Client, Postman)
• Experience using AI-assisted coding tools to improve development, testing, and automation efficiency

Responsabilidades

• Design, develop, test, and maintain backend services supporting large-scale digital banking platforms
• Take ownership of backend testing activities within the Agile team, ensuring software quality, reliability, and performance
• Develop and maintain unit, integration, and API tests to support continuous delivery and high-quality releases
• Collaborate with business stakeholders to understand requirements and translate them into effective technical solutions
• Participate in technical analysis, solution design, and architectural discussions
• Contribute to the entire software development lifecycle, including implementation, testing, deployment, maintenance, and continuous improvement
• Use AI-assisted development tools to improve coding efficiency, testing, and automation of routine tasks
• Work closely with cross-functional team members to deliver secure, scalable, and customer-focused digital banking solutions

Conocimientos

Java backend

Agile team

Unit testing

Integration testing

CI/CD pipelines

OpenAPI/Swagger

SQL databases

Hibernate ORM

JUnit 5

IntelliJ IDEA

VS Code

AI-assisted coding

Herramientas

Git

Maven

Swagger/OpenAPI

Jenkins

JUnit 5

AssertJ

WireMock

Postman

Bruno

IntelliJ HTTP Client

Postman

Visual Studio Code

Descripción del empleo

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 supporting large-scale digital banking platforms
• Take ownership of backend testing activities within the Agile team, ensuring software quality, reliability, and performance
• Develop and maintain unit, integration, and API tests to support continuous delivery and high-quality releases
• Collaborate with business stakeholders to understand requirements and translate them into effective technical solutions
• Participate in technical analysis, solution design, and architectural discussions
• Contribute to the entire software development lifecycle, including implementation, testing, deployment, maintenance, and continuous improvement
• Use AI-assisted development tools to improve coding efficiency, testing, and automation of routine tasks
• Work closely with cross-functional team members to deliver secure, scalable, and customer-focused digital banking solutions

Requirements:

• Minimum 6 years of professional experience in software development, with a strong focus on Java backend development
• Experience with Java (JDK 21+) and Spring Boot 3.5, with knowledge of newer versions (JDK 25+ and Spring Boot 4.x)
• Practical knowledge of Git, Maven, and OpenAPI (Swagger)
• Familiarity with CI/CD pipelines, release procedures, and Jenkins
• Experience with unit and integration testing using JUnit 5, AssertJ, and WireMock
• Knowledge of SQL, JDBC, Spring Template, and Hibernate ORM
• Familiarity with IntelliJ IDEA, Visual Studio Code, and API testing tools (Bruno, IntelliJ HTTP Client, Postman)
• Experience using AI-assisted coding tools to improve development, testing, and automation efficiency

Nice to have:

• Experience with API testing using Cucumber/Gherkin and performance testing with JMeter
• Familiarity with qTest, Playwright, Splunk, Grafana, and Prometheus

Offer:

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

Personal Consulting Agency (License No. 4642)