Java Fullstack Developer

Integral Solutions - Data & AI; Warszawa; On-site; PLN 205,000 - 308,000; Full time

Job summary

Integral Solutions - Data & AI in Poland is seeking a Senior Software Developer who thrives on building robust, scalable applications and is not afraid to seek new solutions. You will own full-stack development using Java, Spring, React and modern JS frameworks, contribute to microservices and cloud deployments, and apply TDD/BDD within CI/CD pipelines.

This role offers remote work, a challenging global project, and opportunities to grow with a team that embraces innovation and continuous

Qualifications

• 8+ years of software development with Java and Spring.
• 2+ years of Python.
• 2+ years of FE development with React; strong JS framework experience.
• Experience with TDD/BDD (JUnit, Jasmine, Mockito, Selenium).
• Microservices architecture with Spring Boot/Cloud; DevOps and CI/CD.

Responsibilities

• Develop full-stack applications using Java, Spring, React and modern JS frameworks.
• Own end-to-end development lifecycle: design, architecture, coding, testing, deployment, DevOps.
• Build and maintain microservices and reactive UIs.
• Apply TDD/BDD practices with common frameworks.
• Contribute to CI/CD pipelines and deployments on Kubernetes/Cloud Foundry.
• Design cloud/hybrid solutions with high scalability and reliability.
• Collaborate in XP practices like remote pair programming and continuous delivery.

Skills

Java

Spring

React

JavaScript/TypeScript

Python

TDD/BDD

Kubernetes

Cloud Foundry

Education

BSc in Software Engineering

Tools

Jenkins

Kubernetes

Cloud Foundry

Spring Boot

Job description

We are looking for an exceptional Senior Software Developer with a passion for coding who is not afraid to seek new solutions.

Job title: Java Fullstack Developer
Location: Poland
Work mode: Remote
Type of cooperation: B2B Contract
Salary range: 40-60/h USD netto + Vat

About The Company/project

We are looking for an exceptional Senior Software Developer with a passion for coding who is not afraid to seek new solutions.

We offer cooperation with a unique client who provides opportunities for development in many complex and global supply chain projects.

You will join a new IT Hub, where you will encounter only new technologies and projects related to the creation of new functionalities.

Responsibilities

• Full-stack development of innovative applications with Java, Spring, React, and modern JS frameworks.
• End-to-end ownership of the development lifecycle: design, architecture, coding, testing, deployment, and DevOps.
• Build and maintain microservices architectures and reactive UIs.
• Apply TDD/BDD practices with JUnit, Mockito, Jasmine, Selenium/Protractor.
• Contribute to CI/CD pipelines and deployments on Kubernetes / Cloud Foundry.
• Design and deliver cloud/hybrid solutions with high scalability and reliability.
• Work in XP practices, including remote pair programming and continuous delivery.

You Are An Ideal Candidate If You Have

• BSc in Software Engineering or BS degree in Computer Science.
• 8+ years of experience in the following technologies: Java (must have), Spring.
• 2+ years of experience with Python
• 2+ years of experience in FE, mainly React (MUST), and other modern JavaScript Framework/libraries.
• Work in XP practices, including remote pair programming and continuous delivery.
• Experience with Functional Programming and Java Streams.
• Experience with developing a reactive UI (Reactive JS).
• 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium
• 3+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud)
• Experience in DevOps development and Jenkins.
• Experience in designing, developing, and deploying cloud/hybrid-based solutions.
• Experience in developing and deploying in Container based environments (Kubernetes, Cloud foundry).
• Familiarity with the following design concepts: micro-services, service discovery, circuit breaker.
• Self-starter with the ability to appropriately priorities and plan complex work in a rapidly changing environment.
• Versatility and capability to switch easily between different tasks and technologies.
• Experience in assessing a broad range of information solutions and products.
• Strong critical thinker with problem solving aptitude.
• Fluent English - verbal and written.

Nice To Have

• Experience with LLMs/AI/Prompt Engineering/MCP.
• Experience with Data Analytics – big advantage.
• Experience in development in Kotlin – big advantage.

What We Offer

• Experience with LLMs/AI/Prompt Engineering/MCP.
• Experience with Data Analytics – big advantage.
• Experience in development in Kotlin – big advantage.