Senior Backend Java Developer
Offer summary

(Summary generated by AI based on the full job description)

The project involves designing and maintaining scalable, secure backend systems with a focus on performance and using GenAI tools. Key technologies include Java 17+, Spring Boot, PostgreSQL along with Docker, Kubernetes, and Helm. Responsibilities cover developing multi-tenant applications, managing deployments, automating with Bash/Shell scripting, leading design discussions, and mentoring peers. Proficiency in CI/CD and Agile collaboration is required.

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Senior Backend Java Developer

Company: PTT CONSULTING sp. z o.o.

from: 10 June 2026
to: 10 July 2026
130 - 150net (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
Warszawa, Śródmieście
Warszawa, Śródmieścieplac Bankowy 2View on map

Requirements

Expected technologies

Java
Spring Boot
PostgreSQL
Docker
Kubernetes
Helm
Bash
JUnit
Maven

Optional technologies

Kafka
Python
C
Go
Kibana
Grafana
Prometheus
Jira

Our requirements

  • Java 17+ and Spring Stack (Boot, Security).
  • Experience with Hibernate/JPA and Maven.
  • Proficiency in SQL (PostgreSQL).
  • Experience with cloud-native application development.
  • Knowledge of Git/GitHub pipelines and CI/CD tools.
  • Proficiency with Kubernetes, Helm, and Bash scripting.
  • Experience with testing tools such as JUnit, AssertJ, and Hamcrest.
  • 8+ years of professional backend experience (preferably in enterprise environments).
  • Degree in Computer Science (or equivalent experience).
  • Fluent English (B2/C1).
  • Strong collaboration skills in Agile teams.

Optional

  • Experience with Kafka & Event-driven/Microservices architecture.
  • Proficiency in Python, C, or Go (Golang) scripting.
  • Knowledge of monitoring tools (Kibana, Grafana, Prometheus).
  • Familiarity with security best practices (OWASP Top 10).
  • Experience with Jira.

Your responsibilities

  • Develop robust, multi-tenant applications using Java 17+, Spring Boot, and PostgreSQL.
  • Manage deployments using Docker, Kubernetes, and Helm.
  • Automate tasks via Bash/Shell scripting.
  • Lead design discussions and mentor peers.
  • Actively participate in Scrum events within a distributed team.

About the project

Design, build, and maintain scalable, secure, and high-performance backend systems.
Drive innovation – including the use of GenAI tools like GitHub Copilot.
Mentor other developers.

This is how we organize our work

This is how we work

you have influence on the technological solutions appliedyou focus on product developmentagilescrum

Team members

backend developerdevOpsproduct ownerproject managerscrum mastergraphic designerUI designerUX designerbusiness analystsystem analyst

This is how we work on a project

  • Clean Code
  • code review
  • design patterns
  • Continuous Deployment
  • Continuous Integration
  • unit tests
  • manual tests

PTT CONSULTING sp. z o.o.

Our Client is a global leader with a sharp focus on lottery solutions.
Building on a long history of delivering safe and secure technology.
Demonstrates strong commitment to customers as a dedicated lottery service provider.
Leverages collective insight, experience, and expertise to create reliable and engaging solutions.
Helps lottery clients achieve objectives, meet player needs, and deliver meaningful benefits to communities.
Senior Backend Java Developer
130–150 zł / hr. (B2B)
I apply to:
PTT CONSULTING sp. z o.o.
Warszawa, Śródmieście
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