Agent Builder - Freelance

The role

You will design, build, and scale production-grade AI systems. You will work at the intersection of Software Engineering, Machine Learning, and Generative AI to build AI-native products and agentic systems.

What you will do

• Design, build, and deploy production-grade AI systems for internal operations.
• Develop solutions leveraging LLMs, RAG, AI Agents, Multimodal AI and Evaluation frameworks.
• Architect complex agentic workflows including tools, memory, retrieval, planning, and guardrails.
• Rapidly prototype new capabilities and evolve them into scalable, reliable AI production systems.
• Connect AI systems to internal platforms, business applications, and data sources.
• Enable AI agents to interact with systems such as CRM, data platform, Drive, Jira, support tools, and internal knowledge bases.
• Design robust orchestration layers between models, APIs, tools, retrieval systems, and business workflows.
• Partner with end users, business teams, Product Managers, and Engineers to identify high-value opportunities for AI.
• Run pilots and experiments, gather feedback, and measure business impact.
• Implement evaluation frameworks, guardrails, validation layers, and monitoring systems.

Required qualifications

• Strong engineering mindset
• Strong AI expertise
• Strong product mindset
• Python
• SQL
• Strong communication skills in English

Nice to have

• 5+ years of experience in Software Engineering, ML Engineering, Applied AI, or related fields
• Strong Python and software engineering fundamentals
• Hands-on experience building production AI systems using LLMs, RAG, and AI Agents
• Experience designing multi-step agentic workflows and retrieval systems
• Experience evaluating AI systems and improving model performance
• Experience deploying and operating production services in cloud environments
• Curiosity, pragmatism, and passion for building AI products

About the company

Mirakl is a marketplace innovation company that provides an operating system combining enterprise marketplace solutions, AI-powered multichannel selling, retail media, and agentic commerce infrastructure. It has dual headquarters in Boston and Paris.