Senior Staff Engineer
Amenitiz
At Amenitiz, we’re on a mission to simplify hospitality management, whether it's in the bustling streets of Paris or the serene Uyuni Salt Flats of Bolivia.
Empowering over 14,000 hoteliers worldwide, we’re more than just another SaaS scale-up—we’re revolutionizing one of the world’s oldest industries. With over $50 million raised from top-tier VCs who back disruptive giants like Alibaba, Toast, Zendesk, Delivery Hero, Revolut, and Loom, we've been recognized as a TravelTech Titan and one of Wired's hottest start-ups.
We’re a team of 250+ and growing, based in vibrant Barcelona. Here, positivity fuels progress, ownership sparks innovation, and collaboration drives success. Every day, we strive to deliver excellence for our clients while creating an environment where our people can thrive, grow, and make an impact.
About the role
As a Senior Staff Engineer, you will be a key technical leader at Amenitiz. Your focus will be on architecture, system design, and scaling, ensuring our product can reliably support continued growth. You will influence engineering best practices, guide long-term technical decisions, and collaborate closely with teams across the organisation. You’ll partner with multiple teams to define and evolve the architecture of our core SaaS platform, ensuring it scales efficiently as our customer base grows.
Your missions
- Lead the design and evolution of our core architecture, ensuring it scales effectively as the business grows.
- Drive system design and major technical decisions, bringing clarity, structure, and long-term thinking to complex engineering problems.
- Collaborate across multiple engineering teams to align technical direction, improve communication patterns, and ensure system/organisation fit.
- Contribute deeply to backend development with strong Ruby on Rails experience, grounding architectural decisions in practical implementation.
- Define and promote engineering best practices, influencing standards, guidelines, and technical consistency across teams.
- Support scaling efforts for a SaaS platform serving tens of thousands of users, identifying bottlenecks and leading improvements.
- Act as a senior technical reference, contributing to the growth and maturity of the engineering function.
About you
- 10-15 years of experience in software engineering, with at least 5 years operating at Staff Engineer level.
- 5+ years of hands-on Ruby on Rails experience, with strong knowledge of the framework and its ecosystem.
- Demonstrated experience scaling SaaS applications to significant user volumes.
- Experience working with distributed systems and microservices
- Able to lead architectural initiatives involving multiple teams and stakeholders.
- Excellent system design skills, with an understanding of how team structure and architecture influence each other.
- Strong communicator who can balance technical detail with clarity and long-term thinking.
- Nice-to-have: experience as a team lead or engineering manager.
- Nice-to-have: experience working in or closely with platform teams.
- Nice-to-have: experience in front-end development (React or similar)
Our Benefits
- 💸 Competitive salary - We recognize your hard work and celebrate your success with performance-based incentives.
- 💊 Comprehensive health & wellness coverage - Your physical and mental well-being matter.
- 💰 Stock options - Enjoy real ownership in the company.
- 🥐 A vibrant office in the heart of Barcelona - Fresh fruit, great coffee, after-work drinks, and a sunny patio.
- 🎉 Unforgettable team experiences - Sailing trips, shows, workshops, and more.
- 💳 Get paid whenever you want - Access your salary anytime.
- 🍽️ Flexible benefits - Save on meals, childcare, transportation, and training.
- 📈 Grow with us - Fast-growing, international team with broad career opportunities.
- 📚 Fuel your curiosity - We’ll buy you any book you want and keep your learning on track.
If you’re a strategic thinker with a passion for driving growth and innovation, we want to hear from you! Apply now to join our team and be a part of our exciting journey at Amenitiz!