Ofertas de empleo para Ruby

• Flexibilidad horariaSí
• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada23 oct.

. React Kubernetes Ruby TypeScript SaaS AWS PostgreSQL Ruby on Rails Redis

Q-tech is colaborating with a fast-growing international SaaS company that is opening a new engineering hub in Barcelona and is looking for a Staff Engineer.

This is a backend-focused role with high ownership and real impact, working on Security management, APIs and integrations for a platform used by some of the most demanding customers in the private capital space.

We are seeking experienced developers who would like to work in Ruby on Rails (not previous experience required).

YOU MUST HAVE:

• Expertise in OAuth 2.0

💻 What you’ll work on

• Design, build and iterate on backend-heavy systems across IAM, APIs, internal and external integrations, ensuring security, privacy and reliability at scale.
• Provide security leadership across the whole application, resolving issues that affect the product as a whole.
• Lead technical decision-making when designing new features, refactors or integrations where security is a critical factor.
• Diagnose and resolve critical issues, such as customers being unable to log in due to authorization failures.
• Deliver features end-to-end, from design through deployment and monitoring.
• Mentor peers.
• Drive system reliability, performance and maintainability.
• Engage in architecture discussions with wider engineering leadership.

🛠 Tech stack

Ruby on Rails · PostgreSQL · Redis · AWS · Kubernetes

(Some TypeScript & React exposure, but backend is the core focus)

👥 The team

• ~65 engineers globally, distributed across North America
• Strong product-driven engineering culture
• High ownership, low bureaucracy, real-world impact
• Opportunity to help shape a brand-new Barcelona engineering hub

📍 Location & setup

• Permanent contract
• Hybrid model: 3 days per week remote
• Flexible working hours
• Equity package included (4-year vesting, 1-year cliff)
• 23 days of paid annual leave
• Private health insurance with Adeslas (family included)
• €50/month phone & home internet allowance
• €50/month public transport allowance
• €60/month gym & wellness allowance
• €500/year professional development budget

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada23 oct.

Teletrabajo . Kubernetes Ruby Android AWS iOS PostgreSQL Kafka LESS

• Our mission and customers: We are creating the freedom for SMEs to succeed by delivering Europe's leading finance workspace with banking at its core, augmented by financial tools. We are proud to be rated 4.7 on Trustpilot, based on 60,000 reviews. Our culture puts customer satisfaction at the core of what we do, as proven by our Net Promoter Score of 75 (more about our culture here).
• Our journey: Founded in 2017 by Alexandre and Steve, Qonto has grown to 1,700 Qontoers serving over 750,000 customers across 8 European countries. We have been profitable since 2023, and we are just getting started.
• Our beliefs: We hire for skills and potential. With 80+ nationalities, 45% women, of which 56% of women in our leadership team, diversity isn't a program; It's who we are. We've built a discrimination-free hiring process because the best teams are built on merit.
• AI at Qonto: AI is deeply embedded in how we work (here) - Every Qontoer gets unlimited access to the best AI tools. We want people who experiment without waiting for permission, push AI beyond the obvious, know when to trust it, and when to question it.
  
  

Location: You can choose to work in Qonto as long as you're living in (or willing to relocate to) either Germany, France, Italy, Serbia, or Spain.

Join us as Senior Backend Engineer to build the financial infrastructure that 750,000+ European SMEs depend on every day, from highly scalable APIs to robust banking services that handle real money, in real time, with zero room for mistakes.

You will join one of our mission-based teams of 5 to 10 engineers, led by a dedicated Engineering Manager. You will work alongside backend, web, iOS, and Android engineers, as well as Product Managers and Designers, in either a Product team (building features used directly by customers) or a Platform team (developing the scalable foundations that help Product teams move faster). Your team owns a clear mission end-to-end, following our "you build it, you own it" approach, and you will stay connected to the wider Backend community through our Backend Guild.

What you'll do

• Design, build, deploy, and maintain services handling real financial transactions, owning reliability in production, not just at merge time
• Co-own service architecture, resilience, and scalability with respect to Domain-Driven Design principles
• Grow in technical leadership: lead design discussions, anticipate risks, and mentor less experienced engineers
• Drive continuous improvement, from fixing flaky CI to running post-mortems and propagating learnings across the team
• Contribute to discovery, make technical decisions, monitor production performance, and steadily raise quality standards
  
  

What we're looking for

• Technical expertise: Strong backend engineering experience with exposure to large-scale web application architecture and real production constraints
• Stack fluency: You don't need to know our exact stack, but you transfer fast and are comfortable with similar technologies
• Quality-driven: You write tests, set up monitoring, handle incidents methodically, and do root cause analysis
• Ownership mindset: You track impact after release, flag regressions, and improve what's in your scope without being asked
• Team player: You are comfortable working in squad teams with PMs, Designers, and other stacks, and you are fluent in English
  
  

At Qonto we understand that true diversity isn't just about ticking boxes on a hiring checklist. Apply regardless of the boxes you tick! Who knows? You may have the missing piece of the puzzle we've been searching for all along.

What we can offer you

• Our methodology, the Qonto Way: We value upfront technical design, team reviews, and smart slicing. Quality drives the velocity our customers need
• Autonomy: Our org assigns one team lead per project across stacks, giving your team a clear mission and full autonomy on how it operates
• Continuous improvement: Our lean toolbox, Kaizen, PDCA, lets you monitor and drive improvement collaboratively with your peers and manager
• AI tooling: Each engineer gets access to Cursor or Copilot, and we want people who use AI to raise the bar, not just to go faster
• Our stack: Go and Ruby are our primary languages. Our platform runs on a Kubernetes cluster hosted on AWS, with PostgreSQL as our database of choice. We also use Kafka for event-driven architecture and ELK for logging and auditing, among many other tools and services
  
  

At Qonto, we understand that true diversity isn’t just about ticking boxes on a hiring checklist. Apply regardless of the boxes you tick - who knows? You may have the missing piece of the puzzle we’ve been searching for all along.

By applying, you agree that Qonto processes your personal data to assess your application. Your data is kept for up to 2 years in our candidate pool. Read our Privacy Notice for full details.

On average, our hiring process lasts 20 working days. More information on our candidate journey here