Java Full Stack Developer

Randstad Polska Sp. z oo; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Premium private healthcare

Life insurance

Sports card

High-spec hardware

Job summary

Randstad Polska Sp. z oo in Warsaw is seeking an experienced Java Full Stack Developer to join our engineering team in a hybrid model.

You will design scalable microservices with Java 17 and Spring Boot, build Angular frontends, and explore Generative AI integrations in our products. Collaborate in an Agile environment to deliver robust software.

Join us to work on modern tech stack, cloud platforms, and a culture of continuous learning and innovation.

Qualifications

• Experience with Java 17 and Spring Boot in microservices architectures.
• Frontend development with Angular and modern web stack.
• Secure API design and data modeling with SQL/NoSQL databases.

Responsibilities

• Design & Develop: Build responsive frontend apps with Angular and scalable backend microservices in Java 17/Spring Boot.
• APIs & Databases: Implement secure RESTful APIs and optimize data models for MongoDB and SQL databases.
• Quality & Security: Write tests (JUnit, Mockito, Jasmine) and align with OWASP/OpenID/OAuth2 standards.
• DevOps & Cloud: Containerize with Docker, deploy on Kubernetes/OpenShift, and maintain CI/CD pipelines.
• Performance & Support: Ensure observability, resilience, and address production issues (RCA).
• Agile & AI: Work in Agile teams and explore Generative AI/LLM integrations.

Skills

Java 17

Spring Boot

Microservices

Angular

TypeScript

RxJS

NgRx

HTML/CSS

OAuth2

OWASP

Docker

Kubernetes

OpenShift

CI/CD

Junit

Mockito

Jasmine

MongoDB

PostgreSQL

MySQL

Oracle

Tools

Docker

Kubernetes

OpenShift

Jenkins

GitHub Actions

Swagger/OpenAPI

Job description

We are looking for an experienced Java Full Stack Developer to join our engineering team in Warsaw in a hybrid model. In this role, you will design scalable microservices with Java 17 and Spring Boot, build modern frontend applications using Angular, and have the opportunity to explore Hands-on Generative AI integrations in our products.

What will your tasks involve?

Design & Develop: Build responsive frontend applications using Angular (12+) and scalable backend microservices with Java 17 and Spring Boot.

APIs & Databases: Implement secure RESTful APIs and optimize data models for both MongoDB and SQL databases.

Quality & Security: Write comprehensive tests (JUnit, Mockito, Jasmine) and ensure code meets enterprise architecture and security standards (OWASP, OAuth2).

DevOps & Cloud: Containerize applications using Docker, deploy on Kubernetes/OpenShift, and maintain CI/CD pipelines.

Performance & Support: Implement monitoring/observability, optimize system resilience (caching, circuit breakers), and resolve production issues (RCA).

Agile & AI: Collaborate closely with cross-functional teams in an Agile environment and explore Generative AI / LLM integrations.

What we expect from you?

Backend Proficiency: Solid hands-on experience with Java 17, Spring Boot, Spring MVC/WebFlux, and microservices architecture patterns.

Frontend Skills: Strong expertise in Angular (12+), TypeScript, RxJS, NgRx, modern HTML5/CSS3, and responsive UI principles.

APIs & Databases: Practical experience designing secure RESTful APIs (OpenAPI/Swagger) and working with both MongoDB and relational databases (PostgreSQL, MySQL, Oracle).

Testing & Quality Standards: Familiarity with testing frameworks (JUnit, Mockito, Jasmine/Karma) and clean coding practices (DDD, layered architecture, OWASP security).

Agile Mindset: Experience working effectively within cross-functional teams in an Agile/Scrum delivery environment.

Nice to Have: Hands-on exposure to Docker, Kubernetes, OpenShift, CI/CD pipelines (Jenkins, GitHub Actions), or initial experience integrating LLM/Gen AI into applications.

What you can expect from us?

Stable Employment: Permanent, full-time employment contract with a competitive salary package.

Balanced Hybrid Model: A flexible setup with 3 days in our modern Warsaw office and 2 days remote.

Cutting-Edge Stack: Hands-on work with modern technologies (Java 17, Cloud/OpenShift) and opportunities to explore Gen AI / LLM implementations.

Professional Growth: Dedicated budget for training, certifications, tech conferences, and clear career progression paths.

Comprehensive Benefits: Premium private healthcare, life insurance, sports card (e.g., MultiSport), and high-spec hardware/workstation setup.

Engineering Culture: A collaborative Agile environment that champions clean code, continuous learning, and architectural autonomy.

this job offer is intended for people over 18 years of age