Senior Backend / Data / Payments Engineer

CONEXIONHR
📍 buenos aires, autonomous city of buenos aires, Argentina 💼 Full-time 🕒 Posted June 19, 2026

Job Description

We exist to help people live healthier lives and save money while they do it. We’re building the first HSA/FSA that actually works for modern life by letting people spend pre-tax dollars on everyday wellness like the gym, recovery, and prevention.

The Role:
We’re looking for a product-minded backend engineer to help us build the financial and data infrastructure powering our product.
This is a high-ownership role working on systems at the intersection of payments, healthcare, and consumer products.
You’ll make foundational decisions on architecture, data models, and how we handle sensitive financial and health information.

What You’ll Do:
● Design and build core backend systems across payments, ledgers, and health eligibility.
● Own architectural decisions around data integrity, fault tolerance, and security.
● Build reliable integrations with external providers and APIs.
● Work closely with product and design to ship quick...

Ready to Apply?

Submit your application today and join our talented team at CONEXIONHR.

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Job Details

  • Location buenos aires, autonomous city of buenos aires
  • Job Type Full-time
  • Category Other-General
  • Posted Date June 19, 2026
  • Application Deadline July 29, 2026