Firstup Tech Stack

Employee communications platform for frontline and deskless workforces

Software Development San Francisco, CA 201–500 employees Privately Held

Firstup delivers mobile-first employee communications to distributed and frontline teams. The tech stack reveals a modern, integrations-heavy architecture: TypeScript + Node.js + React on frontend, Python + Ruby on backend, Kubernetes-orchestrated AWS infrastructure, and deep connectors into HR systems (Workday, SAP SuccessFactors, Dayforce). Current project focus on generative AI tools, HRIS integration, and a scalable data platform signals a shift toward AI-assisted personalization and expanded enterprise integration. Hiring velocity is accelerating with a senior-skewed engineering team, indicating investment in platform infrastructure and API scale.

Tech Stack 25 technologies

Core StackTypeScript Node.js Ruby React AWS Kubernetes Docker Helm Datadog Workday SAP SuccessFactors Vite Webpack Jest Cypress Playwright Ruby on Rails Python RAG CircleCI Terraform PostgreSQL Salesforce Dayforce React Testing Library

What Firstup Is Building

◆Challenges

Integrating with hris platforms
Scaling public apis
Scaling data platform architecture
Cross-domain data integration
High-friction manual processes
Reducing mttr
Cost optimization across aws
Improving incident response
Improving system availability
Scaling gtm infrastructure

▲Active Projects

Generative ai tools adoption
Ai-assisted tool integration
Shared platform services
Public api development
Automation strategy across salesforce flows
Scalable data platform for bi and predictive analytics
Operational excellence for observability
Scalable frontend architecture
Component library and documentation
Hris integration

Hiring Activity

Accelerating10 roles · 10 in 30d

Department

Engineering

Sales

Finance

Ops

Seniority

Senior

Manager

Director

Mid

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About Firstup

Firstup operates an intelligent communication platform designed to reach every employee—particularly deskless and frontline workers—with personalized, actionable information. The product sits at the intersection of HR systems (Workday, SAP SuccessFactors, Dayforce) and employee engagement, automating workflows and reducing operational gaps across safety, compliance, productivity, and retention. The company is headquartered in San Francisco and employs 201–500 people. Current engineering efforts center on public API scalability, HRIS platform integration, a data platform for business intelligence, and generative AI features, suggesting expansion into larger enterprise deployments and data-driven personalization.

HeadquartersSan Francisco, CA

Company Size201–500 employees

Hiring MarketsGibraltar, United States, United Kingdom

Frequently Asked Questions

What tech stack does Firstup use?

Firstup builds on TypeScript, Node.js, React, and Ruby on Rails; deploys to AWS with Kubernetes and Docker; uses PostgreSQL for data; integrates Workday, SAP SuccessFactors, Dayforce, and Salesforce; and monitors with Datadog.

What is Firstup working on?

Current projects include generative AI tools adoption, HRIS integration, public API development, scalable data platform for analytics, Salesforce automation, and observability infrastructure—reflecting a push toward AI-assisted personalization and enterprise integration.

How this profile is built

Firstup'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.