# AI Agent Engineer (Coding Agent)

**Company:** [Sekai](https://hotfix.jobs/companies/sekai)
**Location:** Remote
**Role:** AI Research
**Skills:** Python, TypeScript, LangChain, LangGraph, Vercel Ai Sdk, Agentic Systems, Tool Use, Orchestration, Llm Evaluation Frameworks
**Posted:** 2026-04-30

> Build and own the agent runtime, orchestration layer, and long-horizon coding agent workflows for an AI-driven consumer social platform.

## Job Description

## Responsibilities
- Design and own the agent runtime and orchestration layer
- Build long-horizon agent workflows: prompt → plan → generate → run/validate → repair → publish
- Develop robust evaluation and quality loops including eval harnesses, regression testing, and failure taxonomy
- Design model strategies including routing, benchmarking, reliability improvements, and cost/latency optimization
- Create debuggable agent systems with tracing, metrics, alerts, and observability

## Requirements
- Experience building agentic systems involving tool use, orchestration, retry/repair loops, and context management
- Comfortable working with modern agent frameworks such as LangChain, LangGraph, Google ADK, Pi-mono, or Vercel AI SDK
- Strong engineering skills in Python or TypeScript
- Experience shipping and operating production systems
- Strong product instincts and ability to translate user experience goals into system design decisions

## Nice-to-Haves
- Built a coding agent, devtool, IDE assistant, or code generation pipeline
- Experience building evaluation frameworks (automated scoring, regression suites, release gating)
- Experience designing MCP-style tool protocols or robust tool interfaces for LLM systems

## Compensation & Benefits
- Competitive compensation: salary + equity
- Health coverage: full medical insurance / health insurance

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