Company profile

Rootstrap Tech Stack

Nearshore AI product engineering for LLM apps, RAG, and copilots

Software Development West Hollywood, California, United States 201–500 employees Founded 2011 Privately Held

Rootstrap is a product and engineering services firm building AI-powered software for client teams, with delivery staffed from Latin America. Its stack centers on applied LLM work: OpenAI, Mistral, and LangChain paired with Pinecone and Weaviate for retrieval, plus Promptfoo, LangSmith, and Arize Phoenix for evaluation and observability. That tooling points to production LLM delivery rather than prototyping, and current hiring is light and focused on data and engineering.

Tech Stack 76 technologies

Core StackOpenAI LangChain Pinecone Weaviate FastAPI Django AWS Docker Terraform Kubernetes Python Playwright Jira Slack Flask Cursor Node.js React JavaScript Cypress Jest Vite Webpack Mistral Promptfoo GCP Azure LangSmith Arize Phoenix Testing Library+44 more

What Rootstrap Is BuildingChallenges and projects from their job posts

◆Challenges

Deploying and embedding LLMs into production applications
Expanding the QA function

▲Active Projects

LLM solutions: RAG systems, multi-agent tools, copilots
End-to-end AI features with scalable APIs
CI/CD and infrastructure-as-code for AI services
Evaluation suites for AI-powered features
Playwright-based test automation scripts

Hiring Activity

Minimal2 roles · 2 in 30d

Department

Data

Engineering

Seniority

Mid

Senior

Companies like Rootstrap

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About Rootstrap

Rootstrap, founded in 2011 and privately held, provides product strategy, UX, data, and engineering services to startups and enterprises. It builds web and mobile applications, including iOS and Android, and increasingly AI-native products such as retrieval systems and copilots. Engineering spans Python (FastAPI, Django, Flask) and JavaScript (Node.js, React) and deploys across AWS, GCP, and Azure with Docker, Kubernetes, and Terraform. The company has 201–500 employees, is based in the United States, and hires in Argentina and Uruguay.

Company Size201–500 employees

Founded2011

Hiring MarketsArgentina, Uruguay

Frequently Asked Questions

What tech stack does Rootstrap use?

Rootstrap uses OpenAI, Mistral, LangChain, Pinecone, and Weaviate for AI work. It builds with Python (FastAPI, Django), Node.js, and React, and runs on AWS, GCP, and Azure using Docker, Kubernetes, and Terraform.

What countries does Rootstrap hire in?

Rootstrap's current hiring is in Argentina and Uruguay, which fits its nearshore delivery model. Open roles are concentrated in data and engineering at mid and senior levels.

What is Rootstrap working on?

Rootstrap is building LLM-based solutions such as RAG systems, multi-agent tools, and copilots. Related work includes end-to-end AI features with scalable APIs, CI/CD and infrastructure-as-code for AI services, and AI evaluation suites.

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How this profile is built

Rootstrap's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.