Fullstack Developer (m/f/d)
Offer summary

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

The project focuses on shaping architecture and technical strategy for a large full-stack system. Key stack includes Java, React, RESTful Web Services, SQL, HTML5 and tools/practices like Git, CI/CD and unit testing. Responsibilities cover defining architecture and coding standards, integrating legacy systems with cloud-native services, ensuring code quality and security, running cross-team technical workshops, incident response, producing system documentation and driving large-scale refactoring. Benefits include private medical care, training cost sharing, life insurance, remote work, flexible hours, development programs and O'Reilly access.

you can start ASAP

Fullstack Developer (m/f/d)

Company: Commerzbank AG

from: 27 October 2026
to: 26 November 2026
salary not specifiedcontract of employment (full-time)
Offer parameters
level:mid • senior
working mode:hybrid
Łódź, Bałuty
Łódź, BałutyOgrodowa 8View on map

Requirements

Expected technologies

Java
React.js
SQL
HTML
Git

Optional technologies

Google Cloud Platform
Terraform
Apache Spark
Hadoop
IntelliJ
Aqua Data Studio

Our requirements

  • Advanced proficiency in Java development and best practices.
  • In-depth experience with React for building dynamic and responsive user interfaces.
  • Strong knowledge in designing and developing RESTful Web Services.
  • Proficient in SQL for database development and optimization.
  • Solid expertise in HTML5 for web application structuring and design.
  • Skilled in version control using Git.
  • Experience with Unit Testing, ensuring reliability and maintainability of code.
  • Strong understanding of Object-oriented Design principles for scalable and modular solutions.
  • Familiarity with Agile Methodologies, fostering collaboration and adaptability.
  • Hands-on experience with CI/CD practices to streamline development workflows.

Your responsibilities

  • Primary Action: Shape the overall system architecture and ensure alignment with enterprise standards.
  • Integration: Orchestrate the integration of complex legacy systems with modern cloud-native services.
  • Implementation: Define the coding standards and patterns that all teams must follow.
  • Quality: Set the bar for code quality and security across multiple development squads.
  • Collaboration: Facilitate cross-team technical workshops to align on shared dependencies.
  • Operations: Lead the response to major incidents and define stability patterns like circuit breakers.
  • Documentation: Create high-level system maps and data flow documentation for auditors.
  • Learning: Lead technical communities of practice to spread knowledge across flexhub.
  • Stakeholder: Partner with business leaders to align technical investments with business value.
  • Improvement: identify systemic inefficiencies and drive large-scale refactoring initiatives.

About the project

As a Senior Fullstack Developer at flexhub, you shape the technical direction of our entire domain. You orchestrate the development of large-scale systems, set coding standards, and act as a trusted advisor to management. Your authority in fullstack engineering ensures we build secure, maintainable, and future-proof solutions. You turn abstract business goals into concrete technical roadmaps.

This is how we organize our work

This is how we work

in house
Company

Benefits

  • private medical care
  • sharing the costs of professional training & courses
  • life insurance
  • remote work opportunities
  • flexible working time
  • integration events
  • corporate sports team
  • retirement pension plan
  • preferential loans
  • no dress code
  • video games at work
  • coffee / tea
  • leisure zone
  • pre-paid cards
  • redeployment package
  • employee referral program
  • extra leave
  • Multisport
  • Skills@Work - personal & professional development program
  • Employee Assistance Program (psychological support)
  • E-learning platform: O'Reilly, library, tutorials

Commerzbank AG

Commerzbank is a leading international commercial bank with branches and offices in almost 50 countries. The world is changing, becoming digital, and so we are. We are leaving the traditional bank behind us and are choosing to move forward as a digital enterprise. This is exactly why we need talented people who will join us on this journey. We work in inter-locational and international teamwork in agile methodologies.

This is how we work

Fullstack Developer (m/f/d)
I apply to:
Commerzbank AG
Łódź, Bałuty
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