Java Developer

CBTW

Java Developer at Collaboration Betters The World GmbH programming complex applications with Java frameworks. Engaged in evaluating new technologies and collaborating with clients on applications requirements.

Posted 7/2/2026full-timeFrankfurt am Main • 🇩🇪 GermanyMid-LevelSenior💰 €62,000 - €72,000 per yearWebsite

Tech Stack

Tools & technologies

AngularApacheCassandraHibernateJ2EEJavaKafkaMongoDBNoSQLPostgresSpringSQL

About the role

Key responsibilities & impact

Development of demanding applications using Java / J2EE, Spring and/or Swing
Experience with additional frameworks such as Hibernate or Angular is a plus
Evaluation and implementation of new technologies and frameworks
Design and development of new features to address complex customer requirements
Use of cutting-edge technologies for development
Communication with clients to gather and analyze specific requirements

Requirements

What you’ll need

Degree, preferably in Computer Science, Business Informatics, Business Mathematics or a comparable field
Several years of solid experience in Java development
Knowledge of frameworks such as Hibernate or Angular is desirable
Strong experience with SQL and NoSQL databases or streaming platforms (e.g. PostgreSQL, MongoDB, Apache Cassandra, Apache Kafka, etc.)
Business-fluent German and English (C1)
Willingness to travel within the DACH region

Benefits

Comp & perks

Onboarding: Networking from day one — Welcome Day, welcome drink, mentoring program
Development: Individual support for your strengths — regular feedback meetings, career paths, career committees, online training catalog, international work with diverse cultures
Work–life balance: Space for your life planning — sabbatical, remote work from abroad, flexible working models, parental leave programs, 30 days of vacation, Baden-Württemberg public holiday calendar
Sustainability: Our work has a positive impact on the environment and society — we make our solutions and collaboration more sustainable every day
Events: Professional and social events — summer tech event, local afterworks, sports events, team events, Christmas parties
Networking: Connect with international colleagues — communities, lunch breaks, internal know-how sessions
Learning culture: Try things out and learn from mistakes — we give you the freedom to work with the latest technologies
Bonuses: Numerous rewards for additional commitment
Additional benefits: digital mobility budget, corporate benefits, company bike program, Deutschlandticket (public transport pass for Germany), occupational health management

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Hard Skills & Tools

JavaJ2EESpringHibernateAngularSQLNoSQLPostgreSQLMongoDBApache Kafka

Soft Skills

CommunicationClient InteractionRequirement Analysis