Senior Java Backend Entwickler mit Schwerpunkt auf Java, Spring Boot, Microservices, Kafka sowie Kubernetes/OpenShift.
Aktualisiert am 24.08.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.09.2026
Verfügbar zu: 100%
davon vor Ort: 100%
Java
Spring Boot
OpenShift
REST
Kafka
Docker
Microservices
SQL
Bamboo
Maven
CI/CD
Prometheus
JUnit
Banking
Grafana
Dynatrace
Polish
Muttersprache
English
fluent
German
fluent

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

11 Monate
2025-10 - heute

Application supporting the end-to-end process

Senior Java Developer EDA Java 17
Senior Java Developer
  • Application supporting the end-to-end process of submitting De Minimis State aid requests
  • Participating in the design and implementation of key solutions and technical components
  • Provided day-to-day support and guidance to other developers (technical mentoring, code reviews, problem solving)
Apache Kafka Bamboo Gerrit Kubernetes Spring Boot
EDA Java 17
Bank Pekao S.A
2 Jahre 11 Monate
2022-12 - 2025-10

BIRD Project

Fullstack Developer (Java & Angular/React) Java JavaScript
Fullstack Developer (Java & Angular/React)
  • BIRD Project ? Bildungsraum Digital? Development and maintenance of Liferay-based application. Implementing prototype portlets (e.g. Zoom integration, elasticsearch search of education courses or developing workspace module for managing various document types
  • TestDAF ? microservice-based system handling exams, training programs, user and event management, and certification processes
Angular Docker Elasticsearch Flyway GitHub GitLab Gradle Hibernate JSP Kubernetes Liferay Maven MySQL OSGI React Spring
Java JavaScript
VM.PL
10 Monate
2021-11 - 2022-08

Credit applications for small and medium enterprises

Java Developer Java
Java Developer

  • Credit applications for small and medium enterprises - development of new features, bug resolving, application maintenance and improvements

Bamboo Hibernate JUnit Maven Mockito Spring Swagger Wiremock
Java
Bank Pekao S.A
9 Monate
2021-03 - 2021-11

Large telecom reconciliation system

Junior Java Developer Java
Junior Java Developer

  • Large telecom reconciliation system- new feature development, bugs resolving, work in scrum

Java EE
Java
Comarch

Aus- und Weiterbildung

Aus- und Weiterbildung

2016 - 2017:
LECTRICAL ENGINEERING
MASTER OF ELECTRICAL ENGINEERING
Poznan University of Technology, faculty of Mechatronics


Further Training and Certificates:

  • Java In-Depth @udemy by Dheeru Mundluru
  • Java Programming MasterClass @udemy by Tim Buchalka
  • Spring Boot, Spring & Hibernate for Beginners @udemy by Chad Darby
  • FCE - English language certificate (B2/C1)
  • TestDAF - German language certificate (B2 level)
  • Introduction to Kubernetes ? by LinuxFoundationX ? LFS158x
  • free program for developing AI competencies
  • Poland?s largest AI training program for software developers

Position

Position

  • Senior Java Developer with React / Angular

Kompetenzen

Kompetenzen

Top-Skills

Java Spring Boot OpenShift REST Kafka Docker Microservices SQL Bamboo Maven CI/CD Prometheus JUnit Banking Grafana Dynatrace

Produkte / Standards / Erfahrungen / Methoden

Profile:

  • Backend-focused Java developer with strong interest in Spring Boot and clean architecture
  • Passionate about self-learning and active in developer communities (Java Guild, Devoxx)
  • Known for refactoring legacy code, writing scalable systems and driving backend quality
  • Currently expanding knowledge in AI/LLMs via AI_devs

Software:
IntelliJ, Docker, Maven, Kubernetes, JIRA, DBeaver, Redis, Swagger, GIT, CI/CD, Bamboo, Maven, Microservices, CursorAI, Github, Gerrit

Programmiersprachen

Java
Spring
REST
Hibernate/JPA
SQL
Junit/Mockito
React
Kafka
Liferay
Flyway
JSP
Typescript
WebSockets

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

11 Monate
2025-10 - heute

Application supporting the end-to-end process

Senior Java Developer EDA Java 17
Senior Java Developer
  • Application supporting the end-to-end process of submitting De Minimis State aid requests
  • Participating in the design and implementation of key solutions and technical components
  • Provided day-to-day support and guidance to other developers (technical mentoring, code reviews, problem solving)
Apache Kafka Bamboo Gerrit Kubernetes Spring Boot
EDA Java 17
Bank Pekao S.A
2 Jahre 11 Monate
2022-12 - 2025-10

BIRD Project

Fullstack Developer (Java & Angular/React) Java JavaScript
Fullstack Developer (Java & Angular/React)
  • BIRD Project ? Bildungsraum Digital? Development and maintenance of Liferay-based application. Implementing prototype portlets (e.g. Zoom integration, elasticsearch search of education courses or developing workspace module for managing various document types
  • TestDAF ? microservice-based system handling exams, training programs, user and event management, and certification processes
Angular Docker Elasticsearch Flyway GitHub GitLab Gradle Hibernate JSP Kubernetes Liferay Maven MySQL OSGI React Spring
Java JavaScript
VM.PL
10 Monate
2021-11 - 2022-08

Credit applications for small and medium enterprises

Java Developer Java
Java Developer

  • Credit applications for small and medium enterprises - development of new features, bug resolving, application maintenance and improvements

Bamboo Hibernate JUnit Maven Mockito Spring Swagger Wiremock
Java
Bank Pekao S.A
9 Monate
2021-03 - 2021-11

Large telecom reconciliation system

Junior Java Developer Java
Junior Java Developer

  • Large telecom reconciliation system- new feature development, bugs resolving, work in scrum

Java EE
Java
Comarch

Aus- und Weiterbildung

Aus- und Weiterbildung

2016 - 2017:
LECTRICAL ENGINEERING
MASTER OF ELECTRICAL ENGINEERING
Poznan University of Technology, faculty of Mechatronics


Further Training and Certificates:

  • Java In-Depth @udemy by Dheeru Mundluru
  • Java Programming MasterClass @udemy by Tim Buchalka
  • Spring Boot, Spring & Hibernate for Beginners @udemy by Chad Darby
  • FCE - English language certificate (B2/C1)
  • TestDAF - German language certificate (B2 level)
  • Introduction to Kubernetes ? by LinuxFoundationX ? LFS158x
  • free program for developing AI competencies
  • Poland?s largest AI training program for software developers

Position

Position

  • Senior Java Developer with React / Angular

Kompetenzen

Kompetenzen

Top-Skills

Java Spring Boot OpenShift REST Kafka Docker Microservices SQL Bamboo Maven CI/CD Prometheus JUnit Banking Grafana Dynatrace

Produkte / Standards / Erfahrungen / Methoden

Profile:

  • Backend-focused Java developer with strong interest in Spring Boot and clean architecture
  • Passionate about self-learning and active in developer communities (Java Guild, Devoxx)
  • Known for refactoring legacy code, writing scalable systems and driving backend quality
  • Currently expanding knowledge in AI/LLMs via AI_devs

Software:
IntelliJ, Docker, Maven, Kubernetes, JIRA, DBeaver, Redis, Swagger, GIT, CI/CD, Bamboo, Maven, Microservices, CursorAI, Github, Gerrit

Programmiersprachen

Java
Spring
REST
Hibernate/JPA
SQL
Junit/Mockito
React
Kafka
Liferay
Flyway
JSP
Typescript
WebSockets

Vertrauen Sie auf Randstad

Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

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