PayFit Tech Stack

Payroll and HR automation for SMBs across Europe

Software Development Paris, Paris 501–1,000 employees Founded 2015 Privately Held

PayFit operates a payroll and HR SaaS serving 20,000+ businesses across France, Spain, and the UK. The engineering-heavy hiring mix (12 engineers vs. 4 sales) and active project list signal a product-led scaling phase: AI enablement, document generation, org charts, and performance tracking are live efforts, while a migration to event-driven time-tracking suggests architectural maturation under load. The stack—Node.js, React, TypeScript on AWS—is standard modern SaaS; the real signal is the multi-country compliance layer (Spanish collective agreements, labor regulation variance) driving complexity.

Tech Stack 20 technologies

Core StackLooker Amplitude TypeScript Node.js React JavaScript AWS AWS Lambda Salesforce Slack AWS Step Functions AWS SQS AWS SNS IAM DatoCMS LiveChat Outreach Notion LinkedIn

What PayFit Is Building

◆Challenges

Migrating time-tracking system to event-driven
Developing time planning module for new markets
Transitioning to new architecture
Scaling front-end systems
Cross-country data management
Ensuring payroll accuracy
Compliance with labor regulations
Scaling platform for growing customers
Supporting diverse collective bargaining agreements
Transformation or evolving system contexts

▲Active Projects

Ai enablement
Document management and generation
Org chart
Performance & engagement
Integrate spanish collective agreements
Client onboarding
Migrating time-tracking system to event-driven platform
Developing new time planning module for critical markets
New features for jetlang low-code platform
Evolve low-code platform architecture for cbas

Hiring Activity

Accelerating25 roles · 15 in 30d

Department

Engineering

Sales

Support

Marketing

Design

Procurement

Product

Seniority

Senior

Junior

Mid

Intern

Manager

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About PayFit

PayFit provides automated payroll and HR management software for small and mid-market businesses. Founded in 2015, the company operates across three markets—France, Spain, and the United Kingdom—and counts over 20,000 monthly active customers. The product handles core HR workflows: payroll processing, compliance filing, document generation, org charts, and time planning. A 700-person team, headquartered in Paris, manages product development, sales (developer and SMB segments), customer support, and go-to-market operations across these geographies.

HeadquartersParis, Paris

Company Size501–1,000 employees

Founded2015

Hiring MarketsSpain, France, United Kingdom

Frequently Asked Questions

What tech stack does PayFit use?

TypeScript, Node.js, React, and JavaScript on AWS (Lambda, SQS, SNS, IAM). Looker for analytics, Salesforce for CRM, Amplitude for product instrumentation, DatoCMS for content, Notion for internal ops.

What countries does PayFit operate in?

France, Spain, and the United Kingdom. The product supports locale-specific payroll rules and collective bargaining agreements for each market.