Software Integration Engineer - Freelance (M/F)

Collective.workNordEURESpublished 09/11/2026
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Must-have:JavaHTMLCSSGitGoogle CloudDockerKubernetesCI/CDAIE-Commerce
Machine translation — original language: French.Show original

Daily Rate (TJM): 490€/day

CONTEXT

We are the team in charge of conversation tools between customers and customer relations agents.

We provide these tools for several countries; these tools support several communication channels: form, email, social networks (WhatsApp, Facebook Messenger, ...), voice.

We operate four applications:

  • Oracle OSvC, our "legacy" text communication solution
  • We are deploying a new SaaS conversation tool between our customer service agents and our customers. The conversation tool is multi-channel: Email, WhatsApp, Messenger, live chat, help page, FAQ. The new application replaces several applications already in place. The new tool also has chatbot and API connection functionalities.
  • Our Genesys Voice communication solution: agent, routing, IVR
  • Our API solutions to connect these applications to our information system

To support the deployment of the new SaaS tool to new countries and new use cases, we are looking for a Software Integration Engineer to strengthen our team.

MISSIONS

As part of the deployment of the new SaaS software, you will take part in the configuration and deployment (already more than 13 countries deployed) by implementing the various technical integrations.

  • Integration of help page / FAQ widgets
  • iFrame integration into our e-commerce sites
  • Front Customization (HTML/CSS)
  • Accessibility
  • API integration, study, testing, implementation
  • Consumption and integration of REST APIs (use of testing tools like Bruno)
  • Interconnection of CRMs to streamline exchanges
  • Interconnection with business data APIs (Order management, customer account)
  • SSO integration, account auto-provisioning
  • Using AI wisely: LLM chatbot (getting an answer quickly), Routing AI (redirecting the right question to the right person), .
  • Use of the bot creation tool native to the SaaS tool
  • API integration
  • Integration of testing tools (CI/CD) (automating tests of our conversational journeys)

METHODS

  • Define the integrations to be implemented and catalog them
  • Propose technical solutions, perform solution design studies with advantages and disadvantages
  • Coding practice: clean code, testability, code maintenance, code review, participation in improving team practices
  • Capitalize on actions, have a documentation approach ( "blueprint" approach)

TOOLS & ENVIRONMENT

  • English
  • Developer background
  • Github
  • Java SpringBoot / Quarkus
  • HTML/JS/CSS
  • REST API
  • GCP
  • Docker
  • CI/CD

SOFT SKILLS

  • Sense of service, being action-oriented to achieve objectives
  • Sense of service, being oriented towards customer satisfaction (internal and end customer)
  • Curiosity to test new configurations (#build)
  • Ability to capitalize on actions: writing procedures (HOW-TO)
  • Ability to capitalize on processes: following and enriching the deployment guide

ABOUT THE TEAM / TECH

  • Global organization with offices in Lille providing digital solutions to 70 countries
  • Technical stack: Java 21 (Spring Boot/Quarkus), Git/GitHub/Gitops, Docker, Kafka, Kubernetes, Terraform, GCP
  • Collaboration tools: Slack, Google Suite, Confluence, Jira

WORKING CONDITIONS

  • Location: Lille
  • TJM: 490€
  1. Proficiency in English
  2. Developer background
  3. Experience with GitHub
  4. Skills in Java SpringBoot / Quarkus
  5. Proficiency in HTML/JS/CSS
  6. Experience with REST API
  7. Knowledge of GCP
  8. Proficiency in Docker
  9. Experience in CI/CD
  10. Sense of service and