Full Stack Developer

Precapital is a family office based in Kraków, focused on real estate, automotive and renewable energy projects. They grow their business through a venture building process. The role involves forming the design and development unit of an AI-powered sales platform combining CRM-like functionality, B2B marketplace features, and intelligent sales automation, serving internal teams and external clients. The platform integrates with existing tools at Precapital, emphasizing third-party integrations and API-driven architecture.

• Proven full stack experience owning both frontend and backend, from UI to database.
• Strong verbal and written communication skills to collaborate with internal teams and external stakeholders.
• Experience delivering products independently from rough idea to production.
• Solid knowledge of modern web stack including React/Next.js, TypeScript, Node.js, relational and document databases.
• Hands-on experience with LLM/AI integration such as OpenAI API, LangChain, vector databases, or equivalent.
• Experience integrating with third-party tools and APIs including CRM systems, automation platforms, webhooks, iPaaS (e.g. Make, Zapier).
• Strong system design thinking for scale, maintainability, and future team onboarding.
• Good communication skills in English, written and spoken.
• Product mindset focused on outcomes.
• Bonus: prior experience as a tech lead or in a solo-developer product role.

• Lead end-to-end design and development of the AI-powered sales platform.
• Define the technical architecture, stack, and development standards in collaboration with the founders.
• Integrate AI and LLM capabilities including lead scoring, recommendations, automated communication, and workflow logic.
• Integrate and migrate data from existing tools already in use at Precapital.
• Coordinate external agencies and freelancers contributing to the project.
• Ensure code quality, security, and performance as the product and user base grow.
• Gradually build and mentor an internal engineering team as the project scales.