Senior Backend Engineer - Remote EU, Fintech with Equity

Oliver Bernard; Spain; Remote; EUR 125,000 - 222,000; Full time

Job summary

Oliver Bernard is seeking an experienced backend engineer to design and ship end-to-end backend systems and APIs for a rapid-scaling fintech startup. You will own architecture, CI/CD, testing and monitoring across real-time accounting logic, with daily deployments and high autonomy.

Candidates should have 5+ years in backend roles, deep knowledge of complex business logic, and strong database skills (PostgreSQL, SQL, ORMs). Python with FastAPI/Flask/Django is a plus; remote EU-friendly.

Qualifications

• 5+ years backend engineering experience (language agnostic).
• Deep experience with complex business logic products.
• Strong database skills: PostgreSQL, SQL, ORMs, migrations and schema design.
• Experience deploying on AWS (or similar), with solid CI/CD and production-readiness fundamentals.
• Hardcore work ethic and high agency.

Responsibilities

• Design and ship end-to-end backend systems and APIs.
• Own architecture, CI/CD, testing and monitoring.
• Deploy daily and move fast with limited permissions.

Skills

Backend engineering

Complex business logic

Database design

AWS & CI/CD

Fast decision making

Tools

PostgreSQL

SQL

ORMs

Migrations

AWS

CI/CD

FastAPI

Flask

Django

Job description

Oliver Bernard is seeking an experienced backend engineer to design and ship end-to-end backend systems and APIs for a rapid-scaling fintech startup. You will own architecture, CI/CD, testing and monitoring across real-time accounting logic, with daily deployments and high autonomy.

Candidates should have 5+ years in backend roles, deep knowledge of complex business logic, and strong database skills (PostgreSQL, SQL, ORMs). Python with FastAPI/Flask/Django is a plus; remote EU-friendly.