Unknown Company
Senior AI Engineer
RemoteRemotePosted Today$150,000 – $250,000
SeniorRemote
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Job Description
About usRuby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries
Key Highlights
- Take complete ownership and deliver major AI engineering features within agreed timelines.
- Own AI output quality, structure, and predictability across all user-facing AI interactions.
- Design, implement, and maintain output-type-based AI systems, including segmentation, routing, and enforcement.
- Ensure consistent output structure and formatting across different LLMs for the same request type.
- Integrate and orchestrate multiple LLM providers via OpenRouter, managing model selection, fallback strategies, and cost optimisations.
Qualifications
Required Qualifications
- 6+ years of backend/full-stack software engineering experience, including production-grade TypeScript/Node.js. Experience with Next.js and/or Python is a plus.
- 2+ years of experience building AI/LLM systems in production. Less experience may be considered for exceptional candidates.
- Deep hands-on experience working with LLM APIs (OpenAI, Anthropic, or similar) in production environments.
- Experience with Agentic AI, multi-agent orchestration, tool-based workflows (function calling/tool execution), and/or RAG pipelines, including indexing, retrieval, and re-ranking.
- Experience with LLM observability tools such as Langfuse, LangSmith, or similar platforms.
- Experience with AI gateways and model routing solutions, such as OpenRouter or equivalent technologies.
- Solid understanding of Redis and relational databases, such as PostgreSQL.
- Exceptional ownership mindset and personal responsibility for engineering quality and delivery.
- 6+ years of backend/full-stack software engineering experience, including production-grade TypeScript/Node.js. Experience with Next.js and/or Python is a plus.
- 2+ years of experience building AI/LLM systems in production. Less experience may be considered for exceptional candidates.
- Deep hands-on experience working with LLM APIs (OpenAI, Anthropic, or similar) in production environments.
- Experience with Agentic AI, multi-agent orchestration, tool-based workflows (function calling/tool execution), and/or RAG pipelines, including indexing, retrieval, and re-ranking.
- Experience with LLM observability tools such as Langfuse, LangSmith, or similar platforms.
- Experience with AI gateways and model routing solutions, such as OpenRouter or equivalent technologies.
- Solid understanding of Redis and relational databases, such as PostgreSQL.
- Exceptional ownership mindset and personal responsibility for engineering quality and delivery.
Preferred Qualifications
- Experience with AI-centered development tools such as Cursor, Claude Code, Windsurf, or similar platforms.
- Familiarity with evaluation frameworks, including LLM-as-a-judge, RAGAS, or similar approaches.
- Experience working in high-pressure startup environments with rapid product iteration cycles.
- Experience with MCP (Model Context Protocol), including building MCP servers/clients or designing tool contracts for AI agents.
- Experience with edge and serverless runtimes, such as Cloudflare Workers, and supporting services including KV, Durable Objects, Queues, R2, and D1.
- Experience with payments, billing and checkout flows, or orchestration platforms.
- Practical experience fine-tuning models for domain-specific tasks or achieving strict JSON/schema compliance.
- Working proficiency in Python for data science, evaluation scripts, or AI tooling.
- Experience with AI-centered development tools such as Cursor, Claude Code, Windsurf, or similar platforms.
- Familiarity with evaluation frameworks, including LLM-as-a-judge, RAGAS, or similar approaches.
- Experience working in high-pressure startup environments with rapid product iteration cycles.
- Experience with MCP (Model Context Protocol), including building MCP servers/clients or designing tool contracts for AI agents.
- Experience with edge and serverless runtimes, such as Cloudflare Workers, and supporting services including KV, Durable Objects, Queues, R2, and D1.
- Experience with payments, billing and checkout flows, or orchestration platforms.
- Practical experience fine-tuning models for domain-specific tasks or achieving strict JSON/schema compliance.
- Working proficiency in Python for data science, evaluation scripts, or AI tooling.
Skills & Technologies
RubyNext.jsTypeScriptNode.jsRedisPythonPostgreSQLGo
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Job Details
Experience Level
Senior
Salary Range
$150,000 – $250,000
Location
Remote
Work Mode
Remote
Posted
Today