Lead Software Engineer (m/f/d) - Java

Become Lead Software Engineer (m/f/d) - Java at Retarus.

Retarus is a worldwide provider of cloud-based messaging solutions at enterprise scale. We serve over 40% of the companies listed on the S&P Global 100, e.g. Adidas, Bayer, SAP, BNP Paribas, Goldman Sachs, T-Systems, Swarovski & UPS, as well as governmental agencies and major players in markets across the world. Privately owned and founder-managed for over thirty years, Retarus is customer-oriented, stable, a fair employer, and a strategic business partner with a long-term vision. With some 500 employees in 19 offices on four continents, Retarus operates locally and thinks globally: our teams are organized across borders and are highly integrated. This makes Retarus a multicultural, multilingual, and engaging workplace. We are committed to creating a diverse and dynamic environment for our employees, with generous compensation, time off, and a global, collaborative workplace.
What we offer

• Mobile working and flexible working time
• Collaborative, diverse company culture and superior team spirit
• Flat hierarchies and great feedback culture
• Development opportunities & career perspective
• International business & cross-site collaboration
• Modern, dog-friendly offices with nice amenities
• Company-paid health insurance, public transportation, lunch vouchers and further benefits

What you'll do

• Take responsibility for architectural leadership by defining and driving the technical vision, establishing architectural standards, leading design reviews, and ensuring scalable, secure, and maintainable solutions across the platform
• Monitor and optimize pipeline performance, ensuring high reliability, observability, operational efficiency, and continuous improvement of system performance and stability
• Improve the Intelligent Document Processing (IDP) pipeline by enhancing workflows, increasing scalability, and driving technical excellence across the end-to-end processing landscape
• Modularize AI functionalities by defining clear service boundaries, reducing system complexity, improving maintainability, and enabling future growth and innovation
• Support the in-housing of critical technologies and knowledge transfer initiatives by mentoring engineers, promoting best practices, fostering technical ownership, and building sustainable expertise within the organization
• Strengthen team enablement and mentorship by coaching engineers, providing hands-on technical guidance, conducting code and design reviews, and fostering a culture of collaboration, accountability, and continuous improvement

What you'll need

• A university degree (Bachelor's or Master's) in Computer Science, Software Engineering, or a related field
• At least 7 years of professional experience in Software Engineering or a comparable technical role
• Strong technical expertise in Java, system architecture, and modern AI/LLM technologies
• Strong communication skills with the ability to clearly articulate technical concepts across teams and stakeholders
• Hands-on mentality combined with a pragmatic and solution-oriented approach
• Strong collaboration skills with experience working effectively in cross-functional and cross-team environments
• Strategic thinking with the ability to balance long-term architectural vision and short-term delivery needs
• Excellent written and spoken German and English skills (C1 level or native speaker)
• Nice to have: experience with Intelligent Document Processing (IDP) systems
• Nice to have: experience successfully supporting or leading in-housing initiatives or knowledge transfer programs

What you can expect

At Retarus, you will work on impactful and dynamic projects, with real opportunities to make a difference. Our customers are leaders across diverse industries, with constantly evolving needs and high expectations. You'll be working with cutting-edge technology and great creative leeway to meet customers' needs - and the projects you work on will be deployed globally. Working at Retarus, you will collaborate closely with convivial, culturally diverse teammates. You will grow professionally in a dynamic and exciting workplace and design impactful solutions in real time with top companies.

Very important
Come as you are. Retarus is committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or veteran status.

Apply via our online application portal - it's easy and doesn't take long. Our colleague Alissa Selman is happy to field any questions you may have: [email protected]

We'relooking forward to getting to know you!