Java Developer Intern - Document Lifecycle - TalentBank 2026

Commerzbank Digital Technology Centre Poland; Łódź; On-site; PLN 22,320 - 39,060; Full time

Benefits offered by this job

Paid internship contract for 9 months

Flexible working hours

Hybrid/onsite environment

Access to e-learning platforms

Job summary

Commerzbank Digital Technology Centre Poland offers a Java Developer Intern position within the Document Lifecycle cluster. You will join an agile, international team to develop and optimize Java applications in a paperless banking environment.

The role emphasizes technical design, coding, and collaboration with mentors. Flexible hours and an internship-friendly program support students and recent graduates in starting their IT careers.

Qualifications

• Active student or recent graduate in technical, mathematical, business, finance, or economics fields.
• Basic Java and Spring Boot RESTful services knowledge is required.
• Familiarity with software testing using Maven is desired.
• Willingness to travel to Frankfurt by arrangement.

Responsibilities

• Technical specification of software components.
• Software development, defect analysis and bug fixing.
• Software configuration management and development.
• Creation of technical documentation.
• Technical reviews of system components.
• Re-Engineering/Refactoring of software systems.

Skills

Agile experience

Problem solving

Team player

Time management

Interpersonal skills

English language

German language

Java

Spring Boot

RESTful services

Maven

CI/CD

XML

Cloud (GCP)

Education

Student or graduate after second year of studies

Tools

Linux

Solaris

Windows

Mainframe (IBM z/OS)

Job description

TalentBank is an original internship program of the Digital Technology Centre in Poland, which aim is to enable students and graduates to gain professional experience in IT / banking industry. The project can be attended by people who are students or graduates (up to 12 months after graduation). We look for students after second year of technical, mathematical, business, finance, economic or related studies.
Join our team as a Java Developer Intern!
The mission of the cluster Document Lifecycle (DL) is to enable a paperless bank. DL creates a globally consistent and complete Commerzbank archive and front-end infrastructure for document generation, scanning, electronic transport and archiving for bank and client.
The cluster is responsible for a range of more than 70 applications including standard products such als Assentis DocFamily, Doxis4 and SAPERION as well as inhouse-developed software. The main platforms in use are Linux/Solaris, Windows and Mainframe (IBM z/OS).
The Java Developer implements and maintains software based on business requirements or incidents and does optimizations and performance tasks. He/she designs, plans and implements java applications depending on bank standard architectures and business requirements.
He/she shares own technical knowledge with other team colleagues.
Person in this position can complete his/her role independently.

What you will be doing?

• Technical specification
• Software development, defect analysis and bug fixing
• Software configuration management and development
• Creation of technical documentation
• Technical reviews of system components
• Re-Engineering/Refactoring of software systems

Which technology & skills are important for us?

• Experience of working in an agile
• Critical thinker and problem-solving skills
• Team player
• Good time-management skills
• Great interpersonal and communication skills
• Willingness to travel to Frankfurt (headquarters) by appointment
• Language: English and German
• Basic knowledge of Java +Spring Boot RESTful services
• Basic knowledge of Software testing Maven

Nice To Have

• Basic knowledge of CI/CD process
• Basic knowledge of XML
• Basic knowledge of Cloud (GCP)

What we offer?

• Paid mandate contract for 9 months
• Opportunity to gain experience and start career in our IT departments
• Work in an international environment in the Agile methodology
• Individual approach - flexible working hours, the possibility of combining internship with studies, completing obligatory student internships
• Subsidized meals - Pluxee Lunch Pass card
• Access to the Speexx e-learning language platform
• Access to O’Reilly and Clix (Linkedin Learning) e-learning platform
• Access to psychological and well-being webinars on ICAS
• Internal training program Skills@work (coffee Learning Session – informal quarterly meetings among employees focusing on a given technological or business issue, Trainer Academy – Technical training organized by employees for employees, Guilds – groups focusing on a given technology)
• Support of experienced mentors
• Trainings with Professionals
• Interests groups (f.e. board games, cooking) and integration events

How?

Hybrid on Wersalska 6 street (Łódź)

* * *

Below you can find more information about Commerzbank and the cluster

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.

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