AI Engineer
Blue Yonder4 days ago
Paris, FranceMid Level
Responsibilities
- Build and maintain backend services, APIs, tools, and integrations used by AI agents and model-development workflows.
- Create training and evaluation environments using APIs, simulations, test scenarios, and reproducible state.
- Develop pipelines and application components to collect and process agent traces, tool calls, workflow outcomes, evaluation results, and user feedback.
- Implement automated evaluations and verification checks for model and agent behavior, including task completion, tool-use correctness, and regression testing.
- Review traces and test results to identify failure modes, reproduce issues, and determine whether software, tools, data, prompts, or models need improvement.
- Collaborate with model-training teams to integrate and assess new models.
- Write tested, maintainable Python code and contribute to code reviews and technical documentation.
- Improve service reliability and operability through logging, monitoring, automated testing, error handling, and safe deployments.
- Own scoped components from implementation through testing and operation while collaborating on system design.
Requirements
- Around three or more years of software engineering experience, or equivalent practical depth, building and maintaining production software.
- Strong Python skills and backend development experience, including APIs, data processing, automated testing, and service integration.
- Hands-on experience with LLMs, AI agents, machine learning systems, or other data-intensive software.
- Familiarity with tool calling, prompt and context management, retrieval, structured outputs, or agent orchestration.
- Understanding of maintainability, testing, version control, observability, and secure development.
- Experience with Azure, AWS, or GCP and familiarity with containers and CI/CD workflows.
- Ability to investigate unfamiliar systems, break down problems, incorporate feedback, and deliver reliable work within a larger technical design.
- Clear communication and collaborative work with engineers, researchers, data specialists, and product teams.
- Preferred qualifications include experience with model evaluations, model traces, nondeterministic systems, model-training or post-training concepts, data pipelines, dataset preparation, synthetic data, experiment tracking, model deployment, simulations, test harnesses, developer tools, or complex enterprise integrations.
- Experience with supply chain, retail, or multi-step workflows involving permissions, business constraints, and human approvals is preferred.
Tech Stack
Categories
About Blue Yonder
Blue Yonder builds cloud-based supply chain software for retailers, manufacturers, and logistics providers, covering demand forecasting and replenishment, price optimization, order management, and warehouse and transportation management. Headquartered in Scottsdale, Arizona, it delivers its enterprise SaaS platform on Microsoft Azure and supports large, global operations. The company traces its roots to JDA Software, which rebranded as Blue Yonder, and serves customers across retail, manufacturing, and logistics markets.