Backend Engineer

Ibexa; Louvain-la-Neuve; On-site; EUR 55,000 - 75,000; Full time

Job summary

A leading marketing technology company in Louvain-la-Neuve is looking for a Backend Engineer to join their Channel Team. The ideal candidate will have robust experience in backend development with Java and Spring, and a strong understanding of distributed systems. Responsibilities include collaborating in a Scrum setup, influencing technical architecture, and using AI-assisted tools for efficient coding. Candidates should be fluent in both French and English and proactive in system enhancement. This role offers a dynamic environment focused on cutting-edge multichannel engagement.

Qualifications

• Strong experience in Java and Spring, designing high-performance APIs.
• Experience with event-driven systems like Kafka and MongoDB.
• Deep understanding of mobile platforms and in-app messaging workflows.
• Able to balance technical quality with business impact.
• Comfortable using AI tools to facilitate development.
• Familiarity with modern DevOps practices and pipelines.
• Proactive in improving system performance and code quality.
• Fluency in both French and English is required.

Responsibilities

• Collaborate with PMs and UX designers in a Scrum setup.
• Influence architecture and scaling of communication services.
• Leverage AI-assisted coding tools for efficient development.
• Contribute to system improvements and performance initiatives.

Skills

Backend development

Distributed systems & infrastructure

Mobile & multichannel expertise

Collaboration & product mindset

AI-assisted coding

CI/CD & tools

Ownership & initiative

Language proficiency in French and English

Tools

Kafka

MySQL

MongoDB

Tomcat

Nginx

Kubernetes (K8s)

Jenkins

Git

Maven

npm

Job description

Every journey counts. Together?
Are you passionate about digital marketing and customer engagement? At Actito, you can turn that passion into a purpose-driven career. We're all about creating a workplace where people come first. We empower our team to thrive both personally and professionally, in a flexible and dynamic environment designed to support your ambitions and wellbeing.
Who are we? We're a diverse team of marketers, developers, strategists, customer success experts, and creative thinkers operating from Louvain-La-Neuve (Belgium), with a presence in France, the Netherlands, and beyond. Our biggest strength?
Our people.
Our culture is fuelled by two decades of experience in marketing automation, brought to life through core values like transparency, ownership, collaboration, growth mindset, work-life harmony, and yes, fun. At Actito, we believe every journey is unique - from each customer's journey to each team member's professional path. We believe in the power of marketing that respects and understands the customer, and we build the tools to make it happen.
Our Engagement Platform, made in Europe, orchestrates seamless experiences across all channels to make every journey count. Actito is also proud to be part of Ibexa, a collective of leading European marketing technology companies. Together, we offer a best-in-class ecosystem that helps brands create lasting customer connections.
Join us in making every journey count. Together.
We are looking for a Backend Engineer to join our Channel Team based in Louvain-la-Neuve, responsible for all messaging channels. You will work in a collaborative Scrum setup with Product Managers and UX designers, directly influencing the architecture, development, and scaling of our communication services. This role also leverages AI-assisted coding with Claude to accelerate development, improve quality, and support complex backend workflows.

Skills & Experience

• Backend development: Strong experience in Java and Spring, designing and implementing high-performance APIs (OpenAPI/REST).
• Distributed systems & infrastructure: Experience with Kafka, MySQL, MongoDB, Tomcat, Nginx; building scalable, reliable event-driven systems. Experience with Kubernetes (K8s) and containerization is a plus.
• Mobile & multichannel expertise: Deep understanding of mobile platforms, push notifications, SDK integration, SMS/email deliverability, and in-app messaging workflows.
• Collaboration & product mindset: Able to work directly with PMs and UX designers, balancing technical quality with business impact.
• AI-assisted coding: Comfortable using Claude or similar AI tools to accelerate development, automate testing, generate documentation, and refactor code efficiently.
• CI/CD & tools: Experience with Jenkins, Git, Maven, npm, and modern DevOps pipelines.
• Ownership & initiative: Proactive problem solver who contributes to system improvements, performance, and code quality.
• Language proficiency: Fluent in French and English.
• Having basic information security competences as well as follow secure practices and policies within an ISO 27001-certified environment.

Join us and help shape the next generation of multichannel engagement, leveraging both cutting-edge backend engineering, AI-assisted development, and cloud-native technologies to deliver high-impact marketing experiences on mobile and beyond.