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OfferUp Tech Stack

Mobile marketplace for local buying, selling, and services

Technology, Information and Internet Bellevue, Washington 201–500 employees Founded 2011 Privately Held
offerup.com LinkedIn

OfferUp operates a mobile-first C2C marketplace spanning secondhand goods, jobs, pro services, and rentals. The tech stack reveals a modern, service-oriented architecture—Node.js, React Native, GraphQL, Kubernetes—paired with AWS and Databricks for data scale. Active projects signal a multi-front expansion: new web experiences, a B2B SaaS product (go-to-market planning underway), LLM integration, and search optimization, while pain points cluster around fraud detection, backend scalability, and data-driven decision-making.

Tech Stack 26 technologies

Core StackNode.js React React Native JavaScript TypeScript GraphQL AWS webpack Python GitHub Terraform Kubernetes Java Databricks SageMaker BigQuery NetSuite LangChain Excel SQL HTML CSS Bower DSP Concur LangGraph

What OfferUp Is Building

◆Challenges

  • Replacing legacy systems
  • Launching new saas product
  • Optimizing cac:ltv
  • Scalability and reliability of backend services
  • Scaling b2b demand
  • Fraud detection
  • Search ranking optimization
  • Generative ai feature development
  • Improving data-driven decision-making
  • Maximizing programmatic advertising revenue

▲Active Projects

  • New web experiences for offerup
  • Shared components and utilities
  • Go-to-market planning for offerup for business saas
  • Media and creative testing frameworks
  • B2b attribution model design
  • Develop highly scalable real-time microservices
  • Develop a technical strategy
  • Optimize search ranking algorithms
  • Implement fraud detection
  • Integrate llms into production workflows

Hiring Activity

Accelerating15 roles · 9 in 30d

Department

Engineering
5
Data
2
Marketing
2
Product
2
Finance
1
Sales
1
Security
1

Seniority

Senior
6
Mid
3
Staff
2
Junior
1
Lead
1
Manager
1
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About OfferUp

OfferUp is a mobile marketplace launched in 2011, connecting millions of users for buying, selling, and local services across the United States, Mexico, and Colombia. The platform spans consumer-to-consumer transactions (secondhand goods, jobs, pro services, rentals) with emphasis on simplicity and safety. Engineering represents the largest hiring focus, followed by data, marketing, and product roles—indicating sustained investment in platform infrastructure and go-to-market expansion, particularly a nascent B2B SaaS offering.

HeadquartersBellevue, Washington
Company Size201–500 employees
Founded2011
Hiring MarketsUnited States, Mexico, Colombia

Frequently Asked Questions

What tech stack does OfferUp use?

OfferUp's stack includes React Native and React for frontend, Node.js and GraphQL for backend services, Kubernetes for orchestration, and AWS for cloud infrastructure. Data processing runs on Databricks and BigQuery; payment/ERP via NetSuite and Concur.

What countries does OfferUp operate in?

OfferUp operates in and hires from the United States, Mexico, and Colombia, supporting local buying and selling across North and South American markets.

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