SkillSource
Jobs

© 2025 AptiCrew, LLC dba SkillSource

Back to Jobs
OPEN

Senior Node.js Engineer

Job Description

Senior Node.js Engineer – LLM/CLI Tooling Focus (Full-Time Contract) We’re looking for a Senior Node.js Engineer to join our team as a full-time contractor and help us build next-generation developer tools powered by Large Language Models (LLMs). If you thrive in command-line environments, love writing clean, modular code, and have an interest in integrating AI into engineering workflows, this role is for you. 🔧 What You’ll Do -Design and implement robust CLI tools and backend systems using Node.js -Work closely with LLM APIs like OpenAI Codex and Claude Codex, integrating them into developer-facing tools -Build clean, maintainable modules with a focus on small, well-scoped functions and files -Streamline CLI workflows using Bash/Unix, improving automation and productivity -Collaborate with the team to enhance our AI/agent tooling and refine user experience for terminal-based utilities ✅ What You’ll Bring -5+ years of professional experience with Node.js in production environments -Fluency in Bash/Unix CLI workflows -Hands-on experience with LLM APIs (OpenAI Codex, Claude Codex), or strong demonstrable interest and initiative in this area -A disciplined approach to writing modular, maintainable code 🌟 Bonus Points (Nice to Haves) -Experience working with streaming APIs or agent/chat-based tooling -Familiarity with Node’s fs streaming primitives -Contributions to open-source CLI tools -Exposure to developer-focused UX for command-line applications 🧪 Interview Project (Paid) -Candidates will complete a paid take-home project: -Build a Node.js application that launches an OpenAI Codex terminal process and streams the output to a file. Note: Please include an invoice for any OpenAI Codex token usage. We understand these can incur costs and will reimburse accordingly.
Position Details

Location

LATAM

Experience

5-50 years

Hours per Week

40+ Hours

Duration

>6 Months

Required Skills

Node.js
LLMs

Preferred Skills

Apply Now
Submit your application for this position