Back End Node.js AI Engineer

job summary:
We are seeking a Back End Node.js Engineer with hands-on AI implementation experience to build scalable backend services and AI-enabled capabilities for enterprise applications. This role focuses on designing production-ready APIs, microservices, and backend orchestration layers that integrate with LLMs, RAG pipelines, vector search, caching, and enterprise data sources. This is not a front-end-focused role, nor is it a pure data science or ML research role. We need a strong backend engineer capable of explaining backend architecture, AI integration design, and production tradeoffs to build reliable AI-enabled services in a real application environment.

 
location: Sunnyvale, California
job type: Contract
salary: $70 - 75 per hour
work hours: 8am to 5pm
education: No Degree Required

responsibilities:



W2 Only Role as cannot sponsor Visa so Only Eligible for USC or GC candidates

TORC Ropes Assessment Requirement: Please note that as a mandatory first step in the interview process, you must be able to successfully complete the Ropes coding test.

Location: Sunnyvale, CA

We are seeking a Back End Node.js Engineer with hands-on AI implementation experience to build scalable backend services and AI-enabled capabilities for enterprise applications. This role focuses on designing production-ready APIs, microservices, and backend orchestration layers that integrate with LLMs, RAG pipelines, vector search, caching, and enterprise data sources. This is not a front-end-focused role, nor is it a pure data science or ML research role. We need a strong backend engineer capable of explaining backend architecture, AI integration design, and production tradeoffs to build reliable AI-enabled services in a real application environment.

Required Skills

Node.js & TypeScript

REST APIs & Microservices Architecture

LLM API Integration & Prompt Orchestration

RAG Pipelines & Vector Databases

Redis / Caching Strategies

Cloud Deployments & CI/CD Pipelines

Job Duties - Core Responsibilities

Backend Architecture & Development: Design, build, and maintain scalable Node.js/TypeScript backend services, REST APIs, microservices, and backend orchestration layers.

AI Integration: Develop AI-enabled backend services that integrate with LLM APIs, RAG workflows, embeddings, vector databases, and enterprise knowledge sources.

Intelligent Feature Engineering: Build backend systems that support intelligent search, document retrieval, summarization, recommendations, workflow automation, or agent-assist capabilities.

Orchestration & Logic: Design and implement prompt orchestration, conversation context management, tool/function calling, and structured response handling.

Performance Optimization: Implement Redis/caching strategies, rate limiting, session/context handling, retries, timeouts, and API performance optimization.

System Integration: Integrate backend services with databases, caches, messaging systems, and cloud-native infrastructure. Support asynchronous and event-driven processing using tools such as Kafka, queues, or background workers.

Security & Reliability: Design secure APIs with proper authentication, authorization, validation, error handling, logging, and monitoring.

CI/CD & DevOps: Build and maintain CI/CD pipelines, automated testing, and production deployment processes.

Monitoring & Troubleshooting: Monitor backend and AI system performance, including latency, errors, token usage, cost, retrieval quality, and system reliability. Troubleshoot production issues and improve scalability, reliability, and accuracy.

Cross-Functional Collaboration: Collaborate with product, architecture, front-end, data, and platform teams to deliver secure, production-ready AI capabilities.

Job Requirements -

Qualifications & Experience

Deep, hands-on experience in backend engineering using Node.js, TypeScript, REST APIs, and microservices.

Proven experience building AI-powered systems utilizing LLM APIs, embeddings, vector databases, RAG, prompt orchestration, tool calling, and response validation.

Strong proficiency in implementing caching (Redis), managing cloud deployments, building CI/CD pipelines, and providing production support.

Ability to clearly explain and justify backend architecture decisions, AI integration designs, and production performance tradeoffs.

Demonstrated ability to successfully build, deploy, and maintain reliable AI-enabled services in a real-world, enterprise application environment.

qualifications:
Deep, hands-on experience in backend engineering using Node.js, TypeScript, REST APIs, and microservices.

Proven experience building AI-powered systems utilizing LLM APIs, embeddings, vector databases, RAG, prompt orchestration, tool calling, and response validation.

Strong proficiency in implementing caching (Redis), managing cloud deployments, building CI/CD pipelines, and providing production support.

Ability to clearly explain and justify backend architecture decisions, AI integration designs, and production performance tradeoffs.

Demonstrated ability to successfully build, deploy, and maintain reliable AI-enabled services in a real-world, enterprise application environment.

skills:
AI integration,APIs,AI implementation,AI-enabled,AI,scalable backend services,backend,caching,cloud deployments,CI/CD,enterprise applications,LLMs,LLM APIs,ML research,application environment,microservices,Node.js,pure data,Redis,REST APIs,vector search,backend architecture,TypeScript,production support,vector databases

Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.

At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact View email address on us.fitly.work.




Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility).

This posting is open for thirty (30) days.

Qualified applicants in San Francisco with criminal histories will be considered for employment in accordance with the San Francisco Fair Chance Ordinance.




Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.




We will consider for employment all qualified Applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance.