Sr. Frontend Engineer (React/TypeScript) - Munich

About the Position

Sr. Frontend Engineer (React/TypeScript) - Munich

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CONXAI Technologies GmbH is at the forefront of AI in the construction tech space, building an agentic AI platform for the Architecture, Engineering, and Construction (AEC) and physical industries. We are seeking a Senior Frontend Engineer to join our team in Munich, Germany, to shape and evolve a modern, scalable frontend architecture within our complex B2B AI platform.

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Responsibilities

• Architect & Build at Scale

  • Develop complex B2B features using React 18 + TypeScript
  • Work within a structured Feature-Sliced Design (FSD) architecture
  • Design clean domain boundaries and public APIs between layers
  • Build reusable features, widgets, and domain entities
  • Maintain architectural integrity using dependency rules and validation tools

• Deliver High-Quality Code

  • Write type-safe, production-grade TypeScript
  • Implement unit & integration tests (Jest, React Testing Library)
  • Optimize performance, bundle size, and rendering efficiency
  • Implement robust error handling and monitoring

• Build Advanced Product Capabilities

  • Implement efficient server-state management with TanStack Query
  • Work on complex UI patterns
  • Collaborate on AI feature integration (LLM workflows, structured outputs)

• Collaborate & Lead

  • Work closely with backend engineers on RESTful APIs
  • Contribute to architectural decisions and technical planning
  • Conduct thoughtful code reviews
  • Mentor mid/junior engineers on architecture and best practices

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Requirements

• Required

  • 5+ years of professional frontend experience
  • Advanced React & TypeScript expertise
  • Strong architectural thinking (FSD, Clean Architecture, or similar)
  • Experience with modern state management
  • Strong testing mindset (unit & integration)
  • Experience integrating REST APIs
  • Strong written and verbal English communication skills
  • High standards for code quality and maintainability

• Highly Valued

  • Experience building complex B2B SaaS products
  • Knowledge of scalable frontend architecture patterns
  • Experience with performance optimization
  • Experience with AWS (Cognito / Amplify / S3 / CloudFront)

• Nice to Have

  • Experience in AEC, construction, or document-heavy domains
  • Exposure to AI/ML integrations in frontend applications
  • PDF rendering or document processing experience

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We Offer

• Edge of Innovation: Be at the absolute forefront of AI in the construction tech space
• High Autonomy: Own the product strategy and shape a product that directly impacts the industry
• Top-Tier Peer Group: Work with a global team of ML engineers, software engineers, and industry practitioners
• Equity & Scale: Competitive compensation with significant equity upside

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About the Company

CONXAI Technologies GmbH has built an agentic AI platform for the Architecture, Engineering, and Construction (AEC) and physical industries, focused on knowledge-automation. We automate high-stakes, knowledge-intensive workflows traditionally trapped in siloed data, fragmented tools, and tacit (undocumented) human expertise. Our multi-agent systems perform complex reasoning in the physical world and transform bespoke, service-heavy processes into scalable Service-as-a-Software automation.

CONXAI is trusted by some of the leading AEC companies in Europe, US, LATAM, and Japan.