Senior Fullstack Developer
Summary
Senior fullstack developer designing, building, and testing backend services for digital banking platforms used across the Nordic region, in a hybrid Agile team. Core stack: Java (JDK21+), Spring Boot, SQL/Hibernate, with Angular/TypeScript frontend and AI-assisted development and testing tools. B2B contract at 155 PLN/h.
Rate: 155 pln/h net + VAT, B2B
Location: Hybrid - 3 days per week in office (Warsaw/Gdańsk/Gdynia)
Industry: Banking
Introduction & Summary:
We are seeking a Senior Fullstack Developer with a strong foundation in backend testing and digital banking solutions. The ideal candidate will possess profound knowledge of JDK21+, Spring Boot, and practical experience in Agile methodologies. This role requires a collaborative individual capable of leveraging AI-powered tools to enhance development and testing processes, contributing to innovative digital banking solutions utilized across the Nordic region.
Main Responsibilities:
As a Senior Fullstack Developer, you will be responsible for:
Designing, developing, testing, and maintaining backend services for digital banking platforms.
Driving backend testing activities within an Agile team, ensuring high-quality and scalable solutions.
Collaborating with business stakeholders to gather requirements and assist in solution design.
Supporting analysis efforts and translating business needs into technical solutions.
Utilizing AI-powered tools in daily development and testing processes.
Contributing throughout the full product lifecycle, from design to operational support.
Working within a cross-functional Agile team to deliver customer-centric banking services.
Key Requirements:
Proficient in JDK21+ and Spring Boot 3.5, with knowledge of JDK25+ and Spring Boot 4.x.
Experience with Git, Maven, and OpenAPI (Swagger) for API design.
Familiarity with CI/CD processes and Jenkins.
Expertise in unit and integration testing using Junit 5, AssertJ, WireMock.
Solid understanding of SQL (JDBC, Spring Template, ORM via Hibernate).
Experience using IDEs like JetBrains (IntelliJ IDEA) and Microsoft Visual Studio Code.
Knowledge of JavaScript, TypeScript, Angular 2+ for frontend development.
Ability to effectively use AI-assisted coding tools for development and testing.
Nice to Have:
Experience with API testing frameworks such as Cucumber/Gherkin.
Performance testing experience with JMeter.
Familiarity with tools like qTest, Playwright, Splunk, Grafana, and Prometheus.
ISTQB Foundation certification.
