Note: The job is a remote job and is open to candidates in USA. Kake is seeking a product-minded Senior Fullstack Engineer to build AI-powered products combining polished user experiences with applied AI. The role focuses on developing Next.js/React fullstack features, agentic workflows, MCP integrations, RAG pipelines, LLM integrations, and high-quality UI in collaboration with product and design teams.
Responsibilities
- Design, build, and ship fullstack features across the product, from UI to backend logic
- Build and maintain agentic workflows, including multi-agent systems and MCP server integrations
- Collaborate closely with design to implement polished, animated, high-quality UI using Material UI and Figma specs
- Build and maintain RAG pipelines and integrations with multiple LLM providers (Gemini, GPT, Claude, Perplexity)
- Work with async job processing (Inngest) and Postgres-backed data models
- Contribute to internal tooling and back-office workflows (Retool)
- Partner with product and design to translate requirements into technical solutions
- Write clean, maintainable code and participate in code review
Skills
- Strong experience with **Next.js (Pages Router) and React 18**
- Experience building and reasoning about multi-agent **AI systems and agentic workflows**
- Solid backend experience with **Postgres** and building APIs (e.g., Next.js API routes)
- Strong product sense and a genuine interest in UI quality, animation, and design systems
- Experience **integrating with LLM APIs (**e.g., OpenAI, Anthropic, Gemini) and/or **RAG pipelines**
- Excellent written and verbal communication skills in English
- Ability to work independently in a remote, fast-paced environment
- **US Timezone Overlap:** Required overlap with 9am–3pm PT (GMT-7)
- Experience designing or building MCP (Model Context Protocol) servers
- Experience building voice agents
- Familiarity with Material UI and translating Figma designs into production UI
- Experience with async job frameworks like Inngest
- Familiarity with Qdrant or other vector databases for RAG
- Experience using AI coding tools like Codex or Claude Code
- Experience with Retool or similar internal tooling platforms
Benefits
- Remote work
Company Overview