Senior Backend Developer (Business Connectivity) (m/f/diverse)

The company

Commerzbank is a leading international commercial bank with branches and offices in almost 50 countries. The world is changing, becoming digital, and so are we. We are leaving the traditional bank behind us and we are choosing to move forward as a digital enterprise.

As part of this strategy, Commerzbank continues the expansion of its Digital Technology Center in Sofia, Bulgaria. We need motivated people who will join us on this journey, and we are looking for a Senior Backend Developer in our Business Connectivity team.

The Business Connectivity Cluster drives Commerzbank’s transformation into a digital technology leader by developing and advancing essential integration technologies, including APIs, TokenManager, Kafka, MFT, and MCP. These tools form the backbone of our digital infrastructure, enabling innovative and seamless customer solutions in the German market.

Join us to build and operate a brand-new, cloud-native API management platform at the heart of our digital transformation. In this role, you’ll shape and enhance our Apigee-based API gateway, connect multiple clouds, and help lay the technical foundation that will also facilitate secure and scalable AI communication. You’ll collaborate closely with Cloud, Network, and Security experts, driving automation, observability and reliability across our platform. If you enjoy ownership, modern cloud and API technologies and working in cross-functional teams, this is the place to make a real impact.

Your tasks:

• Developing and enhancing our API management platform built on Apigee;
• Designing and implementing robust Shared Flows and policies;
• Establishing and optimizing CI/CD processes and automation to streamline deployments;
• Analyzing and refining platform performance, stability, and scalability;
• Collaborating closely with Cloud, Network, and Security teams to ensure seamless integration and secure operations.
• Implementing comprehensive Observability, Logging, and Monitoring solutions for the platform.
• Working in an Agile team setup.

Your profile:

• High level of proficiency in Java or other object oriented programming language, including design, implementation, and maintenance of complex applications.
• Strong knowledge about integration patterns, resilient API development and build tools e.g. Maven;
• Strong knowledge in TeamCity and implementing Infrastructure as Code solutions (e.g., Terraform, Helm);
• Strong knowledge in API Gateway or API Management Platforms;
• Good knowledge in OAuth2, OpenID Connect, and API Security principles;
• Experience with cloud technologies, ideally Google Cloud and/or Azure;
• Solid understanding of REST APIs and OpenAPI/Swagger specifications;
• Prior engagement within regulated or large enterprise environments;
• Familiarity with the Apigee platform;
• Familiarity with Cassandra database;
• University degree in IT or relevant;

In return, we offer:

• Good work-life balance, including 25 days annual paid leave (increasing with 1 day per year up to 31 in total), flexible working hours, work from abroad and work-from-home opportunities;
• Luxury package of additional health and dental insurance;
• Food vouchers in the amount of EUR 80 monthly;
• 6 additional annual days off for exceptional circumstances;
• Employee assistance program for psychological, financial and legal consultations;
• Multisport card;
• Annual contribution of EUR 153.39 net per child for a summer camp/school/kindergarten for children up to age of 15;
• Possibilities for building career-advancing skills by covering training/certification courses and conferences based on individual learning and development needs, access to an online learning platform;
• Opportunities for long-term professional development in a stable, 150-year-old company while contributing to the vision of a new, just starting Digital Technology Center;
• Friendly and supportive multicultural environment, open to new opinions and ideas.

Commerzbank is proud to be an equal opportunity employer, committed to creating a diverse environment. All qualified applicants will receive consideration for employment without regard to gender, race, color, national origin, religion, gender identity or expression, sexual orientation, genetics, disability, age, or any other characteristics.

Challenge accepted? Apply now with your up-to-date CV in English!

Due to the high volume of applications, we contact only the candidates who best match the role requirements. If you do not hear from us within 14 days, please consider that we won’t proceed with your application at this stage.