Circula Tech Stack

Employee expense platform for mid-market European companies

Software Development Berlin 51–200 employees Founded 2017 Privately Held

Circula handles travel, corporate card, and benefits expenses for mid-market SMBs across Europe, with a tech stack centered on Spring Boot, Kotlin, and MongoDB. The hiring mix is shifting sales-forward (4 open sales roles vs. 2 engineering), and projects reveal a push into AI/ML-driven accounting automation and third-party API integrations—suggesting the company is moving beyond expense capture into compliance and finance process automation.

Tech Stack 14 technologies

Core StackKotlin Java MongoDB Elasticsearch RabbitMQ CircleCI AWS Python React TypeScript Next.js Spring Boot GCP Spotify

What Circula Is Building

◆Challenges

Compliance automation
Simplify finance and payroll accounting
Administrative task reduction
Finance payroll simplification
Simplify finance payroll administration
Intelligent automation pain points
Finance accounting simplification

▲Active Projects

Build #1 expense management platform
Customer relationship building
Upselling cross-selling
Product improvement feedback
Finance automation platform backend
Api integrations with third-party systems
Ai/ml product development for accountants
Scalable data platform architecture
Llm fine-tuning and ml model training
Supporting product development

Hiring Activity

Accelerating6 roles · 4 in 30d

Department

Sales

Engineering

Seniority

Senior

Mid

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About Circula

Circula operates an expense-management platform covering employee travel, corporate card reconciliation, and benefits administration. Founded in 2017 and headquartered in Berlin, the company serves mid-market European businesses across industries; the platform is used by over 150,000 employees. The product runs on a microservices-style backend (Spring Boot, Kotlin, MongoDB, Elasticsearch) with React and Next.js on the frontend, deployed on AWS and GCP. Current development focuses on finance automation, compliance workflows, and AI/ML tooling for accountants.

HeadquartersBerlin

Company Size51–200 employees

Founded2017

Hiring MarketsGermany

Frequently Asked Questions

What tech stack does Circula use?

Spring Boot, Kotlin, Java backend; MongoDB and Elasticsearch for data; React and Next.js frontend; AWS and GCP cloud infrastructure; RabbitMQ for messaging; CircleCI for CI/CD.

What is Circula working on?

Expense management platform development, finance automation backend, API integrations with third-party systems, and AI/ML product development for accountants—including LLM fine-tuning and model training.

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How this profile is built

Circula'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.