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# Processing Millions of Payments: Lead Engineer Story at Riverty | Joonas Püüa (Tallinn)

**Company:** [Riverty](https://www.wearedevelopers.com/companies/3275-riverty)

Explore the story of Joonas Püüa, Lead Engineer at Riverty in Tallinn, and how he builds and scales secure payment systems processing millions of real-time and batch transactions. 

Learn how ownership, collaboration, and AI-supported engineering drive innovation and reliability in FinTech.

[Read his full story](https://www.riverty.com/en/careers/people-blog/tallinn-people/joonas-puua/)



## Open Positions at Riverty

- [Cloud Engineer (Tenant)](https://www.wearedevelopers.com/jobs/48331-cloud-engineer-tenant) — Berlin, Germany
- [IT Infrastructure & Security Expert (m/w/d)](https://www.wearedevelopers.com/jobs/48332-it-infrastructure-security-expert-m-w-d) — Baden-Baden, Germany
- [Software-Entwickler – RAG & Knowledgraph (m/w/d)](https://www.wearedevelopers.com/jobs/48330-software-entwickler-rag-knowledgraph-m-w-d) — Berlin, Germany