Backend Engineer

Rehive; Barcelona; On-site; EUR 70,000 - 110,000; Full time

Job summary

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 development. This role is well-suited for engineers who thrive on building robust, high-performance systems for fintech applications.

Qualifications

• 3+ years of backend engineering experience, preferably with Python/Django.
• Experience with databases, particularly PostgreSQL.
• Built systems where data consistency matters.
• Familiar with AI-assisted tooling like Claude Code and Cursor to improve code quality.

Responsibilities

• Design and build backend services that process financial transactions.
• Integrate with stablecoin on/off-ramp providers.
• Own the reliability and performance of critical payment infrastructure.

Skills

Backend engineering

Python/Django

PostgreSQL

Data consistency

AI tooling (Claude Code, Cursor)

Job description

Build the infrastructure that moves money. Ledgers, payment integrations, and APIs that power fintech businesses.

About the role

We're building the platform that lets anyone launch a fintech business. That means reliable ledgers, integrations with stablecoin infrastructure (USDC, Bridge), and APIs developers love to use.

What you'll do

• Design and build backend services that process financial transactions
• Integrate with stablecoin on/off-ramp providers
• Own the reliability and performance of critical payment infrastructure

What we're looking for

• 3+ years of backend engineering, preferably Python/Django
• Experience with databases, particularly PostgreSQL
• You've built systems where data consistency matters
• You use AI-assisted tools like Claude Code and Cursor to write better code, faster

Nice to have

• Experience with stablecoins or on/off-ramp integrations