Full Stack Developer

Harakumo; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Remote-first culture

Early-team equity

Quarterly in-person meetings in New Yо

Job summary

Harakumo is seeking an engineer for an early-stage, full-time remote role to own complete services from API to dashboard on a modern edge and serverless platform. The role blends product engineering with developer-tooling work, including an AI orchestration layer that provisions and wires services via natural language.

You will ship end-to-end services, provision edge infrastructure, and build an AI layer while maintaining reliability and writing developer-focused docs.

Qualifications

• Proven production experience with JavaScript/TypeScript.
• Experience using Next.js App Router in production.
• Familiarity with serverless or edge runtimes and data modeling.

Responsibilities

• Ship end-to-end services: route handlers, dashboards, SDKs, CLI, docs.
• Provision edge platform infrastructure (compute, storage, SQL, vector, KV, streaming).
• Develop an AI orchestration layer to wire services from natural language requests.
• Own reliability tasks: live tests, migrations, observability, incident response.
• Engage with developers; write docs, examples, and roadmap feedback.

Skills

JavaScript

TypeScript

Next.js

Serverless

Edge runtimes

Tools

SQLite

PostgreSQL

Vector databases

Job description

Role overview

This is an early-stage, full-time remote role for an engineer who wants to own complete services from API to dashboard on a modern edge and serverless platform. The position blends product engineering with developer-tooling work, including an AI orchestration layer that lets users provision and wire services through natural language.

Responsibilities

• Ship end-to-end services, including route handlers, dashboard pages, SDK namespaces, CLI commands, and accompanying documentation.
• Provision infrastructure on the edge platform, working with compute, storage, SQL, vector, key-value, and streaming primitives.
• Build an AI orchestration layer with an MCP server and agent tooling that can provision and connect platform services from natural-language requests.
• Own reliability work such as live-platform tests, edge SQLite migrations, observability, and incident response.
• Engage directly with developers, write documentation and examples, and translate feedback into roadmap changes.

Requirements

• Strong JavaScript and TypeScript skills with real production experience using Next.js (App Router) and serverless or edge runtimes.
• Comfort with SQL and data modeling; familiarity with SQLite, Postgres, or vector databases is a plus.
• Experience integrating third-party platforms such as payments or cloud APIs and designing clean public APIs and SDKs.
• A shipping mindset with demonstrable launched projects linked through a GitHub or portfolio.
• Effective written communication for docs, examples, and developer-facing content.

Nice to have

• Background in MCP or agent tooling, developer tools, infrastructure, or notable open-source contributions.

Benefits and work setup

• Remote-first, async-friendly culture with quarterly in-person meetings in New York.
• Competitive salary plus early-team equity, discussed in the first conversation.
• Direct ownership of several services rather than narrowly scoped tickets.