Senior Full Stack / Front-End Engineer (TypeScript, AI Agents)
Location: Remote / Hybrid
Type: Full-time
Level: Senior
The Role
The company is seeking a Senior Full Stack / Front-End Engineer to help build intelligent, AI-powered products. The engineer will focus on delivering high-quality user interfaces while working across the stack to integrate AI agents and LLM-driven systems. This role suits someone who values frontend craftsmanship, system thinking, and product ownership.
Responsibilities
- Design, build, and maintain scalable front-end applications using TypeScript
- Develop full-stack features that integrate AI agents, LLM APIs, and external services
- Collaborate closely with product, design, and AI teams to translate complex AI behaviour into intuitive user experiences
- Implement robust application architecture, state management, and data flows
- Ensure performance, accessibility, and maintainability across the codebase
- Participate in technical decision-making and contribute to engineering best practices
- Mentor and support other engineers as the team grows
Requirements
- 5+ years of experience as a Full Stack or Front-End Engineer
- Strong proficiency in TypeScript and modern JavaScript
- Extensive experience with frameworks such as React, Next.js, or similar
- Backend experience using Node.js, Python, or equivalent
- Experience integrating REST and/or GraphQL APIs
- Strong understanding of frontend architecture, performance, and UX principles
- Ability to work effectively in fast-paced, ambiguous environments
Desirable Experience
- Hands-on experience with AI agents, LLMs, or prompt-based systems
- Familiarity with streaming responses, tool calling, or multi-step agent workflows
- Experience working with real-time or event-driven systems
- Exposure to design systems, accessibility standards, or data-heavy interfaces
- Previous experience in startup or high-ownership teams
What the Company Offers
- The opportunity to work on products at the forefront of AI and user experience
- High-impact role with ownership over core features and technical direction
- Collaborative, low-ego engineering culture
- Competitive salary and equity package
- Flexible working arrangements
Key Skills
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- Posted
- Jan 28, 2026
- Type
- Full-time
- Level
- Entry
- Location
- Amsterdam
- Company
- Harnham
Industries
Categories
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