Backend Engineer

Actito; Ottignies-Louvain-la-Neuve; On-site; EUR 65,000 - 90,000; Full time

Job summary

Actito seeks a Backend Engineer to join the Channel Team in Louvain-la-Neuve. You will shape architecture, build high-performance APIs, and scale messaging services in a collaborative Scrum setting. The role emphasizes cloud-native, AI-assisted development and secure coding practices.

You will work with Java/Spring, Kafka, and databases and engage with PMs and UX designers to deliver multichannel engagement at scale, across mobile and web platforms.

Qualifications

• Strong Java and Spring backend development with REST APIs.
• Experience with distributed systems and event-driven design.
• Knowledge of multichannel mobile workflows and deliverability concepts.
• Ability to collaborate with PMs and UX designers in a Scrum setting.
• Familiar with AI-assisted coding tools to accelerate development and testing.
• Hands-on experience with CI/CD and DevOps pipelines.

Responsibilities

Skills

Java

Spring

REST APIs

Kafka

MySQL

MongoDB

Nginx

Kubernetes

CI/CD

AI-assisted coding

InfoSec

French

English

Tools

Kafka

MySQL

MongoDB

Tomcat

Nginx

Kubernetes

Jenkins

Git

Maven

npm

Claude

Job description

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.