Senior Fullstack Engineer (Next.js/AI Agents) at Kake

Confirmed open

Senior Fullstack Engineer (Next.js/AI Agents) opportunity with Kake. See the official posting for responsibilities and application details.

Kake

Location: Remote
Advertised region: Worldwide
Work arrangement: remote
Technologies: React

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Role overview

We're looking for a product-minded fullstack engineer to join a fast-moving team building AI-powered products at the intersection of great UX and applied AI. This role is heavy on product thinking, UI craft, and building with multi-agent systems and LLMs — not on infrastructure or distributed systems work. You'll be working across a modern Next.js/React stack while designing agentic workflows and MCP server integrations, so strong instincts for both clean interfaces and reliable AI system design are essential. This is a great fit for someone who loves building polished, delightful products and is excited to work at the leading edge of applied AI (multi-agent systems, RAG, voice agents).

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
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
Experience designing or building MCP (Model Context Protocol) servers

Qualifications

Strong product sense and a genuine interest in UI quality, animation, and design systems
Excellent written and verbal communication skills in English
Ability to work independently in a remote, fast-paced environment
Familiarity with Material UI and translating Figma designs into production UI
Familiarity with Qdrant or other vector databases for RAG
US Timezone Overlap: Required overlap with 9am–3pm PT (GMT-7)
This role is not infrastructure-heavy — you won't be working on massive distributed systems or large-scale data problems. The ideal candidate is more energized by product craft, UI polish, and applied AI than by backend scale challenges.

Technology in this role

React: You'll be working across a modern Next.js/React stack while designing agentic workflows and MCP server integrations, so strong instincts for both clean interfaces and reliable AI system design are .
Next.js: You'll be working across a modern Next.js/React stack while designing agentic workflows and MCP server integrations, so strong instincts for both clean interfaces and reliable AI system design are .
LLM: 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 .
RAG: This is a great fit for someone who loves building polished, delightful products and is excited to work at the leading edge of applied AI (multi-agent systems, RAG, voice .
Figma: 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 .

Role-specific candidate guide

Preparation notes based on the employer’s stated responsibilities and qualifications.

Understanding the scope. This Senior Fullstack Engineer (Next.js/AI Agents) position at Kake is best assessed through the work described in the employer’s posting, rather than the title alone. The available role overview says: “We're looking for a product-minded fullstack engineer to join a fast-moving team building AI-powered products at the intersection of great UX and applied AI. This role is heavy on product thinking, UI craft, and…” Read that statement together with the responsibilities below to understand the likely balance between delivery, coordination and technical decision-making. The role belongs to the AI and data area, but that label is only a guide to the work; the employer’s own requirements remain decisive. Before applying, check the original listing for reporting lines, product or team assignment, employment terms and any details that may have changed since this copy was checked. Where this page says a fact is not specified, treat it as an open question rather than an implied promise.

What the responsibilities signal. The posting specifically names “Design, build, and ship fullstack features across the product.

About Kake

Kake describes itself as a remote-first community of experienced software engineers that helps client teams add individual engineers or full engineering groups. Its model combines technical vetting and human selection with AI-supported processes; Kake engineers work as dedicated members of client teams rather than as a separate outsourced delivery queue.

The company recruits across frontend, backend, mobile, quality engineering, data and DevOps. Its public hiring pages emphasize end-to-end ownership, collaboration with product and design, and engineering judgment. The exact client, product, team structure and employment terms can vary by opening, so candidates should verify those specifics in the individual listing.

Employer website

How to apply

Review the original posting and apply through the employer’s careers page.

View source and apply

Source checked: 2026-10-13

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