AI Engineer

We are hiring an AI Engineer to build and deploy production-ready LLM agents that power our AI platform. You will own the development of agentic systems, from building the multi-agent architecture to developing all required tools and prompts.

What you'll do

• Build production-ready LLM agents with multi-step reasoning and tool use
• Design and implement agentic workflows using Pydantic AI
• Integrate LLMs (Claude, Gemini, OpenAI) into customer-facing features
• Develop AI-powered automations for Excel, PowerPoint, Word, and Chrome

• 1+ years of software engineering experience with a strong AI focus
• Experience building or deploying LLM-based systems in production
• Background in computer science, engineering, or equivalent practical experience
• Fluent in English

Technical Skills

• Strong proficiency in Python and FastAPI for AI backend development
• Hands-on experience with LLMs (Claude, Gemini, OpenAI) and their APIs
• Experience designing multi-agent systems and workflow orchestration
• Solid understanding of prompt engineering and LLM evaluation methods
• Experience building APIs and scalable backend systems
• Familiarity with tool use, function calling, and structured outputs in LLMs

Mindset

• Ship fast : You build quickly, test in production, and iterate
• Owner mentality : You take full ownership of systems you build
• Pragmatic : You balance cutting-edge AI with reliability and usability
• Curious : You stay up to date with the fast-evolving LLM ecosystem
• User-focused : You build systems that solve real workflows, not demos

pleasefix.ai is building Cursor for finance & strategy analysts : automating workflows across Excel, PowerPoint, Word, and Chrome so analysts can focus on thinking , not document production. Unlike web-based or modelling-only tools, our platform integrates directly into analysts' native tools , fully adapted to each firm's templates and connected to internal & external data sources. Backed by US & EU investors, our engineering team is based in Brussels, while our go-to-market team operates from New York.