Backend Engineer Python - Freelance - Permanent

Context

Collective.work is building an AI agent that automates recruiting workflows—from sourcing and screening to outreach and coordination. Our mission is to shift repetitive recruiting work from humans to software, enabling faster, higher-quality hiring. We operate at the intersection of:

• HR tech ($20B+ market)
• AI agents
• Workflow automation

Missions

• Design, build, and maintain scalable backend services using Python
• Develop APIs and services powering the product and frontend
• Build systems for AI-driven workflows (matching, scoring, automation)
• Integrate with third-party platforms (ATS, CRM, data providers)
• Ensure performance, reliability, and security of backend systems
• Collaborate closely with frontend, data, and product teams
• Contribute to architecture decisions and technical roadmap

Tools & Environment

• Python
• Backend frameworks such as FastAPI, Django
• APIs (REST, GraphQL)
• Databases (SQL/NoSQL)
• Cloud environments and scalable architectures
• Async processing, queues, or event-driven systems (bonus)
• AI/ML pipelines or LLM-based systems (bonus)
• SaaS tool integrations (e.g., HubSpot) (bonus)

Working Conditions

• Location: Brussels (hybrid: remote + in-person)
• Compensation: Competitive salary + equity
• Start: ASAP