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Senior Full Stack Engineer

Remote from Spain·Added 2 months ago

Duetto Research

10 open roles

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Overview

Job details

Fully remote
Only from certain places, per the ad: “Fully remote from Split, Croatia, with a global team that takes collaboration seriously.”

Requirements

Have the right to work in Spain
Duetto Research doesn't mention sponsorship in the ad.
Work in English
English is required, per the ad.
Have 4+ years of experience
Senior-level role.

Requirements

What we're looking for

4-6 years of full-stack engineering experience with production depth across both backend and frontend
Strong proficiency in Java and Spring Boot for enterprise backend development
Strong proficiency in TypeScript and React for modern web applications
Experience building and maintaining GraphQL APIs
Solid working knowledge of SQL and NoSQL databases, particularly MongoDB
Hands-on experience with end-to-end testing frameworks - Cypress or Playwright
A working understanding of microservices architecture and event-driven integration patterns
Demonstrated experience with Claude Code CLI or a comparable AI code generation tool - you're comfortable in a generate-and-review workflow, not just curious about it

Strong candidates may also have:

Nice to have

Experience in or exposure to the hospitality technology sector
A background in legacy modernisation - monolith decomposition, migration planning, or similar
Familiarity with Domain-Driven Design (DDD) in an enterprise context
Experience with AI code review tools such as CodeRabbit or Augment
Working knowledge of AWS, Kubernetes, and CI/CD pipeline management

The role

If you love building software that actually matters - and you're energised by the idea of shipping production-grade features across the full stack while working in a team where AI is a genuine daily collaborator, not a buzzword - this role is for you. You'll own end-to-end delivery on Duetto's core revenue platform, drive a major migration from monolith to microservices, and help shape how the team engineers at scale.

What you'll do

You'll own full-stack feature delivery end-to-end - from requirements through to production - across Java/Spring Boot microservices and TypeScript/React frontends, including monitoring and troubleshooting in live environments.
You'll make independent architectural decisions and convert prototypes into scalable, maintainable production systems, collaborating closely with Product, Design, and Engineering to hold a high bar for end-user quality.
You'll drive the migration of our legacy monolith, applying Domain-Driven Design principles, event-driven architecture patterns, and structured decomposition strategies to modernise software at scale.
You'll champion test quality by writing automated end-to-end tests in Cypress or Playwright and embedding data-driven testing practices across the team.
You'll mentor peers on prompt engineering, AI-assisted development, and code review - operating confidently in a generate-and-review model where 50-70% of code is AI-generated.
You'll contribute to and improve AI-augmented engineering workflows, building and refining custom skills, agents, and agentic pipelines that accelerate the whole team's delivery velocity.

You may be a good fit if you have:

How you'll work

Fully remote from Split, Croatia, with a global team that takes collaboration seriously.
Location: Croatia
Work model: Remote

About Duetto Research

Duetto Research is a technology company specializing in revenue management software for the hospitality industry. Its cloud-based platform, Duetto Cloud, provides hotels and resorts with tools for pricing, forecasting, and revenue optimization, helping them maximize profitability. The company serves a global client base and operates in the travel tech sector, competing with other hospitality technology providers.

Duetto has a significant presence in Spain, with a growing team of engineers, marketers, and customer success professionals. The company's culture emphasizes innovation and data-driven decision-making, making it an attractive option for international professionals with experience in SaaS, hospitality technology, and cloud infrastructure. With roles in engineering, marketing, and customer success, Duetto offers opportunities for career growth in a dynamic, global environment.

Industry: Travel Tech
Founded: 2012
Employees: 100–500
Headquarters: San Francisco, USA
In Spain: Madrid
Website: duettocloud.com

Good to know if you are moving

Duetto has a Spanish office in Madrid, which serves as a hub for EMEA operations, offering roles in engineering, marketing, and customer success.
The company uses a modern tech stack including AWS, Java, and DevOps practices, making it a good fit for engineers with cloud expertise.
Duetto's client base includes major hotel brands, providing exposure to the global hospitality industry.
The company offers a remote-friendly culture, with some roles allowing flexibility in location.
As a growing SaaS company, Duetto provides opportunities for career advancement in a fast-paced, international environment.

In their own words

About the company & team

Duetto is the hospitality industry's leading revenue management platform, founded in 2012 by former Wynn Resorts executives who knew the industry needed better technology. We built the world's first Revenue & Profit Operating System - a suite of tools (GameChanger, ScoreBoard, BlockBuster, Advance and more) that goes beyond room pricing to give hotels, resorts and casinos a complete picture of their revenue and profitability. Trusted by clients ranging from independent boutique hotels to global chains, we've been named the #1 Revenue Management Software by HotelTechAwards four years running and the #1 Best Place to Work in Hotel Tech in 2025. Backed by GrowthCurve Capital since 2024, we're accelerating our investment in AI - and we're genuinely passionate about the industry we serve. We build products we're proud of, for customers we care about.

AI isn't a side project here - it's how we work. With 50-70% of code AI-generated and a team actively building custom agents and agentic pipelines, you'll be operating at the frontier of how software gets built.
Real architectural ownership. This is a high-autonomy IC role - you'll make independent technical decisions that shape the platform, not just implement tickets.
Work that ships. We move fast, hold a high bar, and care deeply about what we put in front of customers. If you want to see your work in production, you will.
A mission worth caring about. Hospitality is a people industry, and we help the people running it do their jobs better. That's something to feel good about.

Additional information

Duetto is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other characteristic protected by applicable law.

You don't need to tick every box - if this role excites you and you're strong across most of what we're looking for, we'd love to hear from you. Apply and tell us what you'd bring.

All open roles at Duetto Research