Senior/Staff Backend Engineer (Go/Ruby) – Remote

Qonto; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Qonto is hiring a Backend Engineer to build the financial infrastructure powering 600,000+ European SMEs. You will design, implement, and maintain scalable services in production, using Go and Ruby, Kubernetes on AWS, and event-driven architectures with Kafka and ELK.

Collaborate across Product, Design, and Platform teams while owning quality and reliability. You’ll participate in architecture discussions, mentor teammates, and drive improvements across the backend ecosystem, embracing an

Qualifications

• Strong backend engineering experience with large-scale web applications
• Ability to own design discussions and mentor engineers
• Fluent English in a collaborative environment
• Ability to deliver reliable services in production
• Interest in working across squads with Product and Design teams

Responsibilities

• Design, build, deploy, and maintain services handling real financial transactions, with reliability in production
• Co-own service architecture, resilience, and scalability following Domain-Driven Design
• Grow in technical leadership by leading design discussions and mentoring engineers
• Drive continuous improvement through CI, post-mortems, and knowledge sharing

Skills

Backend engineering

Technical leadership

Team collaboration

English proficiency

Tools

Go

Ruby

Kubernetes

AWS

PostgreSQL

Kafka

ELK

Job description

Qonto is hiring a Backend Engineer to build the financial infrastructure powering 600,000+ European SMEs. You will design, implement, and maintain scalable services in production, using Go and Ruby, Kubernetes on AWS, and event-driven architectures with Kafka and ELK.

Collaborate across Product, Design, and Platform teams while owning quality and reliability. You’ll participate in architecture discussions, mentor teammates, and drive improvements across the backend ecosystem, embracing an