Backend Engineer

Actito; Ottignies-Louvain-la-Neuve; Sur place; EUR 65 000 - 90 000; Plein temps

Résumé du poste

Actito, Louvain-la-Neuve, is seeking a Backend Engineer to join our Channel Team responsible for all messaging channels. You will work in a collaborative Scrum setup with PMs and UX designers, directly influencing architecture, development, and scaling of our communication services, leveraging Claude and other AI tools to accelerate delivery.

We value strong Java/Spring backend skills, distributed systems experience, and a mindset focused on high-quality, secure software.

Qualifications

• Solid Java and Spring backend experience.
• Experience with high-performance APIs (OpenAPI/REST).
• Experience building scalable event-driven systems.
• Fluency in French and English.
• Understanding of information security in ISO 27001 environment.

Responsabilités

• Develop and maintain backend APIs for messaging channels.
• Collaborate with PMs and UX designers to shape architecture.
• Scale and improve reliability of communication services.
• Leverage AI-assisted coding tools to accelerate development.
• Ensure secure, compliant coding practices.

Connaissances

Backend Java/Spring

Distributed systems

Multichannel messaging

AI-assisted coding

CI/CD/DevOps

ISO27001 security

French/English

Outils

Kafka

MySQL

MongoDB

Tomcat

Nginx

Kubernetes

Docker

Jenkins

Git

Maven

npm

Description du poste

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.

About the job

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.
• Your are 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.