Senior Backend Engineer [Node.js]

bonial helps you save time, money and paper!

We are a digital advertising partner for offline businesses - we support retailers in their marketing activities and help them find a new audience. Would you like to join and be a part of digitalisation of retail?

Bonial is part of Axel Springer SE and is disrupting the retail landscape as the leading 'Drive to Store' partner in Germany and France. Through our platforms 'kaufDA' and 'MeinProspekt' in Germany, and 'Bonial' in France, we connect millions of users with their favorite shops and brands—driving real impact every single day. We are in the midst of an exciting growth phase, scaling fast and transforming the way people discover retail. At Bonial, we thrive in a high-performance, fast-paced environment fueled by motivated, results‑driven individuals who are passionate about making a difference. If you’re looking to be part of a dynamic team that’s shaping the future of retail, we’d love to meet you.

bonial welcomes both full- and part-timers!

About The Team

You will be working in a cross-functional team (Web, Android, iOS, Backend), that delivers end-to-end features to our App and Web users. Our outstanding team spirit is driven by flat hierarchies, a high degree of self organization and technology freedom. If you have a strong motivation to shape the future of digital offer communication, to create state-of-the-art IT products and to deliver high quality code, let’s talk.

About the role

We look for a passionate senior backend engineer with strong experience in designing, developing, and scaling backend systems that power our products. You will be taking the ownership of the backend components of your domain team and work closely with product managers and front‑ends engineers to ship high quality features to our end users.

As a senior backend developer in our cross functional team you will ensure our components are performing as expected and adhering to industry standards such as scalability, maintainability, and security. In particular, you will be:

• Having the end-to-end ownership of backend services, operating with autonomy and proactively addressing technical challenges.
• Playing an active role in the development of high‑traffic, real‑time, geo‑located online applications and surrounding ecosystems.
• Designing and implementing REST APIs on our AWS infrastructure, making use of AWS services for new components.
• Monitoring our backend services in production environments to ensure high performance, scalability, and reliability.
• Exploring technologies like AWS, PostgreSQL, ElasticSearch, Rest API.
• Building a system in the spirit of Agile methodologies (Scrum, Kanban).

Qualifications

• Strong experience building backend (for frontend) applications.
• Strong experience in Node.js
• Experience in Spring Boot and Java 21+
• Strong experience with hosting on AWS and making use of AWS’s services.
• Experience with agentic tools (e.g., LLM agents, AI copilots and Claude Code).
• Hands‑on experience with inter‑service communication, fault‑tolerant distributed systems, distributed caching mechanisms, and microservice architectures.
• Proficient with Docker and Kubernetes.
• Familiar with CI/CD pipelines and cloud platforms (preferably AWS) is highly desirable.
• Experience with PostgreSQL and Elasticsearch.
• Very good communication skills and express your ideas.
• First experiences in an agile software development team.
• You work independently, responsibly, accurately and reliably.
• Team player, but ambitious at the same time.
• Bachelor or a master's degree in computer science or similar qualifications.
• Fluent in both spoken and written English. German is not required.
• Eager to learn new technologies and interested in cloud architecture.

What We Offer

High growth story - Bonial is a high-growth and dynamic company with continuous potential into the future. We are a leading player and a driving force in an industry that is undergoing a massive and a once-in-a-lifetime shift from print to digital.

Innovation & tech - we are a high-tech company focused on innovative technology, leveraging AI and other tools to maximize productivity and efficiency. We leverage these tools to continually enhance the performance of our company and our people, while driving results for our customers and users.

Exciting environment for professional development - strong support for your professional development, backed‑up by a feedback culture to help you identify your strengths and opportunities.

Diversity - proud to be an equal opportunity workplace where we aim to enable everyone to show up as their full selves. We are committed to equal employment opportunity and to being a safe space regardless of race, religion, sex, sexual orientation, age, disability, gender, gender identity or gender expression.

Wellbeing - we believe mental health is as important as being fit. That's why we're giving you free access to nilo.health, a mental health app. In terms of physical training, other than our awesome gym in the office, we also cover part of the subscription to the Urban Sports Club. We can also offer you a corporate pension scheme so you don't have to worry about your retirement.

Sustainability - together with our Green team, we offer you the opportunity to engage in projects that promote sustainability, environmental development and the impact that we make on our planet.

Flexibility - Currently, we have a policy that allows for up to 20% mobile work, which can be conducted from anywhere within Germany, and the option to work from abroad. Additionally, we offer 28 days of holiday. You also get an extra day for each calendar year (up to 30 days) as well as other occasions (moving, working on a social project, etc).

Modern office - Zen Rooms where employees can pray, relax or simply have some quiet time; fully equipped gym in the office, and a roof terrace for amazing social events.

Free lunch – whenever you’re at the office, we offer you different lunch options – and it’s all on us! Enjoy your lunch at a nearby restaurant that partners with us! Hot and cold drinks, fruit, regular varied and healthy breakfasts and other snacks at the office are, of course, always available for free for our employees.

Social Culture – which encourages people to start conversations, build relationships and participate together in the community through regular team events.

Visa Sponsorship – we provide visa sponsorship for those of you who are eager to join us from outside of Germany.

Partner for retail - we empower retailers to reach their customers in the most efficient and effective way possible. We see ourselves as a critical business partner for retail, and as highlighted in our Company Vision, we “Enrich local shopping for everyone. Everyday.”

As part of the Axel Springer Group, we also align with the Axel Springer Essentials.

If you think you could fit the bill, we'd love to hear from you!

You can check out our bonial_people Instagram or read more about bonial culture and tech on Medium.

*as per our current Works Agreements