Senior Backend Engineer — Payments

Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right. Since then, we’ve built the world’s largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar—tools used by...

Proton Technologies AG is hiring for a backend-focused role in our Payments team. You will build features across Proton products, work closely with product engineers, and shape scalable software architectures that power a global subscription ecosystem.A strong emphasis is placed on performance, security, and high-quality API design to enhance user...

bsport is hiring a Senior Backend Software Engineer to join the Financial Services team and craft a scalable payment and invoicing engine for clients worldwide. You will lead feature design, drive architecture decisions, and collaborate with Data, Product, and DevOps to deliver reliable, high-availability services.You will mentor peers, implement best...

FinTech Collective, LLC is seeking a Senior Software Engineer for the Core Platform team that runs a real-time

Upsun is seeking a Senior Software Engineer to design and build the backend services behind our billing stack, including invoices, taxes, usage reporting, and external integrations. You will own complex components end to end, driving reliability and security while collaborating with Finance, Product, and Support.This hands-on role requires Go expertise,...

Rehive is building the platform that lets fintechs launch with reliable ledgers, stablecoin integrations, and developer-friendly APIs. You will design and implement backend services that handle financial transactions and ensure system reliability at scale.You will work with PostgreSQL, focus on data consistency, and leverage AI-assisted tools to accelerate...

Share is hiring a Founding Software Engineer to drive the platform's payments and billing systems. You will work closely with the CTO and a dedicated team, managing critical technical domains and shipping production systems handling real transactions.We seek candidates with 7+ years of software engineering experience, mastery of TypeScript and Node.js, and a...

Our partner is looking for a Senior Staff Engineer – Payments based in Spain.As Senior Staff Engineer, you will be the first technical lead within a newly established Payments squad, shaping the architecture and engineering standards for a rapidly scaling platform.You will take ownership of the squad's technical direction, delivery outcomes, and approach...