Zact Tech Stack

Payment infrastructure platform for fintech apps

Software Development Saratoga, California 11–50 employees Privately Held

Zact builds backend infrastructure for payment applications, with a tech stack centered on Spring Boot + Kafka + Kubernetes for handling transaction flows. The company is hiring primarily senior engineers across distributed geographies (US, Greece, India, Brazil, Colombia), suggesting rapid scaling of core platform work. Pain points around card declines, fraud, and regulatory constraints indicate deep involvement in payment processing compliance and reliability.

Tech Stack 28 technologies

Core StackZendesk Jira Confluence Angular Java Docker Kubernetes Kafka RabbitMQ PostgreSQL MySQL JUnit Postman NetSuite RxJS Angular Material Angular CLI NX OpenAPI Jasmine Angular Signals Spring Framework Spring Boot Spring Security Spring Data JPA Apache Camel Mockito QuickBooks Online

What Zact Is Building

◆Challenges

Maintaining product quality
Card declines
Account access issues
Fraud activity
Cross-functional coordination
Regulatory constraints
Mapping mismatches
Closed accounting periods
Tax configuration errors

▲Active Projects

Digital payment systems
Trading platforms
Integration implementation
Api specification updates
Data mapping

Hiring Activity

Accelerating8 roles · 4 in 30d

Department

Engineering

Data

Support

Seniority

Senior

Junior

Mid

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About Zact

Zact provides a platform for payment application developers to build and deploy payment products. The platform handles digital payment systems, trading platforms, and API integrations. The company operates with 11–50 employees based in Saratoga, California, and supports customers across multiple payment verticals. Current engineering focus includes transaction pipeline reliability, fraud detection, and regulatory mapping — common friction points in payments infrastructure.

HeadquartersSaratoga, California

Company Size11–50 employees

Hiring MarketsUnited States, Greece, India, Brazil, Colombia

Frequently Asked Questions

What tech stack does Zact use?

Spring Boot, Java, Apache Camel, Kafka, RabbitMQ, PostgreSQL, MySQL, Docker, Kubernetes, OpenAPI. Frontend uses Angular with RxJS and Angular Material. Testing via Jasmine, JUnit, Mockito; API testing via Postman.

Where is Zact headquartered?

Saratoga, California. The company hires globally across five countries but maintains primary operations in the US.