AI Software EngineerWe're looking for a skilled and adaptable Full-stack Software Engineer who takes an AI-first approach to software development, using tools such as Claude Code and Codex to accelerate delivery while maintaining high engineering standards. You'll join Treatwell's AI Engineering team and work closely with our Chief AI Officer. We are seeking a software engineer who is comfortable with working in a cross-functional Agile team, with proven experience in designing/building frontend and backend applications, continuously delivering clean, maintainable and well tested code. We want to do great work and to be known for it.
You'll use AI throughout the development process: breaking down problems, guiding coding agents, iterating on implementations and reviewing and testing the results. on experimentation, short feedback loops and the judgment to know when to change direction or turn a promising prototype into reliable software. Design, prototype, develop and maintain full-stack applications, primarily using TypeScript, Node.js and React. Work closely with the Chief AI Officer, internal users, product managers, designers and engineers to identify practical problems, test ideas and deliver useful tools in short iterations.
Use AI coding tools and agent workflows extensively to accelerate implementation, debugging and testing, while taking ownership of code quality, correctness and maintainability.
Move successful prototypes into dependable everyday use, with appropriate testing, performance, security and error handling.
You know good UX, visual and good technical design when you see it and how to ensure quality is embedded in the software development process.




At least 2 years of proven experience as a Software Engineer.
Hands?on experience using AI coding assistants and agents as a core part of your development workflow, including defining tasks, providing context, coordinating local or cloud?based coding workflows, and reviewing and validating generated code.
We value sound engineering judgment over expertise in a particular AI framework.
Strong experience in back?end development with Node.js or a similar JavaScript runtime.
Experience building frontend applications with React or a comparable framework, and the flexibility to work across backend languages and tools when the problem calls for it.
Experience with TDD/BDD and writing test suites (e.g., using Jest, Cypress). Familiarity with agile methodologies and DevOps best practices.
CI/CD pipeline experience (we use Gitlab CI/CD). Familiarity with cloud platforms like (especially AWS). We're the industry's smartest salon management software, all connected to Europe's leading bookings platform, working with over 95,000 salon partners across 14 countries, processing over 14 million bookings per month. We're on an exciting journey to digitally revolutionise the hair and beauty community.
We'll treat you with:28-days holiday, plus bank holidaysMonthly €40 Treatwell vouchers so you can treat yourself tooMental health support through our partnership with PlummGrowth funds for you to develop and grow with your teamSalary Range: €30,000 – €50,000 gross annual salaryEqual OpsWe are committed to fostering a diverse, inclusive, and equitable workplace and are proud to be an equal opportunity employer. All qualified applicants will receive consideration without regard to their condition. #

📌 Software Ai Engineer (España)
🏢 Treatwell
📍 España