
Senior Java Engineer (Remote, Germany)/ 2 weeks ago
Quick Summary
Senior Java Engineer (Remote, Germany)
Start: Immediately | Level: Senior | Working Time: Full-time (40h/week)
Join the Tech & Engineering team at ESN & More! As a Senior Java Engineer, you will contribute to the further development of our Order Management System (OMS) based on Fluent Commerce. Your primary responsibility involves evolving the workflow engine and order orchestration logic that powers our Direct-to-Consumer (D2C) business.
You will operate within a modern, event-driven, and cloud-native architecture, building scalable, high-performance services for the ESN & More Nutrition brands. This role is ideal if you value clean code, solid architectures, and taking ownership of complex systems with significant business impact.
Your Mission
- Continuously optimize and enhance the OMS and workflow engine using modern Java-based architectures.
- Design and implement workflows, rules, and integrations within Fluent Commerce, ensuring reliable and scalable order orchestration.
- Design and implement APIs, primarily utilizing GraphQL, complemented by REST.
- Collaborate closely with Product, DevOps, and other engineering teams to deliver high-quality, end-to-end solutions.
- Actively contribute to architectural and technical decisions and drive best practices within the team.
- Ensure high code quality through peer reviews, testing, and clean architecture principles.
- Share knowledge and support the growth of other engineers.
Your Experience & Skills
- Several years of hands-on experience in full-stack software development with strong Java skills.
- Solid knowledge of microservices architectures and distributed, event-driven systems.
- Experience in API design, especially GraphQL (schema design, performance, maintainability).
- Familiarity with cloud-native development, ideally within the AWS ecosystem.
- Experience with DevOps practices such as CI/CD, Git, and Infrastructure-as-Code.
- Comfortable working with container technologies such as Docker.
- Experience with Fluent Commerce is a strong plus, especially concerning workflows, rulesets, and platform integrations.
- Experience with Order Management Systems (OMS) or e-commerce platforms is highly desirable.
- Knowledge of PHP (Symfony or Laravel) is a plus for understanding upstream/downstream systems and supporting the primary backend stack when necessary.
- Ability to work in an agile environment (e.g., Scrum, Kanban), valuing collaboration, peer reviews, and continuous improvement.
- Excellent English skills (written and spoken); German is a plus.
- Willingness to travel for tech days when needed and provide on-call availability.
Why Choose Us?
At The Quality Group (TQG), over 1,200 people share the mission to rethink nutrition—healthier, smarter, and with real added value. We champion team spirit, ownership, and pushing boundaries. Benefits may include:
- Attractive employee discounts on ESN & More products.
- Flexible working hours & remote work options.
- Subsidies for mobility & fitness (e.g., Wellpass, Deutschlandticket).
- Company pension scheme.
- Workation options and more.
About Us
The Quality Group (TQG) is an innovative provider of sports nutrition products, uniting the successful brands ESN and More Nutrition since 2021.
ESN, the German market leader for sports nutrition since 2004, offers products like protein powders, bars, and supplements for ambitious fitness goals. More Nutrition, founded in 2017, focuses on healthy, reduced-sugar food products for conscious nutrition and weight management.
TQG's vision is to help people become the best version of themselves. The company fosters an agile culture and offers exciting career opportunities, making TQG a strong partner for both customers and employees. We welcome applications regardless of gender, age, background, or identity.

