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Senior Software Engineer (Front-end / JS) in Barcelona or Remote

The Hotels Network

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Job Description

The Hotels Network (THN from now on) is a data platform for the hotel industry. Our monitoring and media delivery agent is currently embedded in over 10,000 Hotels and Online Booking engines, worldwide. Our frontend applications allow our customers and internal teams to create the tools to collect the data on the hotels' website, personalize their user's experience, review the collected data...

The Tech Stack

Our tech stack consists of: Vanilla Javascript / Typescript, Go, PHP and Vue.js for our UI applications and dashboards. Our multi-cloud infrastructure runs on Amazon Web Services and Google Cloud. We store data in MySQL, Redis, Clickhouse and other other storage systems. We love Kafka, event based and data-streaming architecture models and building great products as fast as possible following the best practices.

Our monitoring Agent is built with Vanilla Javascript (transitioning soon to Typescript). It is the heart of everything we do. Performance is key to us just as it is for our customers. We build our monitoring agent to resiliently observe multiple services and handle large volumes of data. It deals with a lot of other services, and handles a lot of data.

Our backend consists of a series of mini/micro services built with PHP or Go embracing a Domain Driven Architecture. Testing is in our DNA and we conduct comprehensive unit and integration testing across the board. We embrace process automation wherever possible and ensure the quality and performance of our platform with SonarCloud, Sentry and Datadog.

Our web applications allow our customers and internal teams to operate our tools, access the data we collect and make business decisions. Our web applications are built with Vue.js, and tested with Cypress and Jest. We work closely with our Design/UX team to make sure our web applications are as easy to use as possible.

Our solid data infrastructure is driven by our Data Engineering Team and relies on a modern, state-of-the-art platform supported by our DevOps and Infra teams. What makes THN stand out from any other player in this industry is our Data Science team, that designs and implements advanced ML/AI algorithms fueled by the massive data ingested by our Agent to help our clients predict their users behavior and improve their booking conversion. This position will play a pivotal role in ensuring our Data Science team gets the most valuable insights on our client’s users and target markets.

The Team

We are a globally distributed team of more than 70 engineers, half of them working remotely. We are organized in multiple cross functional teams and work using agile methodologies (mostly scrum). We value collaboration, team work, open communication, continuous learning and commitment.

They will onboard you to the team, code and processes so that by the end of 1st month you can start finding your way through the code, push new features and extend our code coverage.

You Will

  • Work in a multidisciplinary team together with other frontends, backends, and designers to develop and evolve one of the company's products.
  • Collaborate together with the design team in the continuous improvement of the UX/UI of the product.
  • Use the latest versions of the Vue ecosystem. Including Vue 3 with the Composition API.
  • Assist our team to drive the migration of our dependencies and the transition to TypeScript.
  • Participate in the development of our system design and UI library. Creating new components and documenting them with Storybook.
  • Contribute to increasing our test coverage quota by writing tests and integrating e2e tools on top of our current Jest and Cypress testing layer.
  • Contribute to the maintenance and speed of our JavaScript build pipeline, ensuring our bundle delivery is fast, performant and reliable.
  • Enjoy an environment where continuous training is encouraged. In-house training, conference attendance, and subscription to the best online training platforms.
  • Support, coach and mentor junior engineers, foster their capabilities and empower them to grow amongst us.


    • You bring more than 5 years of programming experience with JS and embrace an Agile mindset in your daily practice.
    • Proficiency in JavaScript (ES6), HTML5 and CSS3.
    • ​​Sound understanding of SOLID principles for JavaScript development.
    • More than 3 years of experience with Vue or other modern frontend frameworks (React, Angular, ...).
    • Experience with Vuex or other state management libraries (Redux, Flux, ….).
    • Good knowledge of cross-browser compatibility.
    • You feel at ease with the DOM API, PostCSS, ESlint, Jest, Babel or Webpack. Bonus points for Vue CLI, Vite, or Cypress.
    • Knowledge of the principles of UX and attention to detail/product ownership.
    • Familiar with agile methodologies and version control systems (Git).
    • Experience with Unit Testing, Functional Testing and/or Integration Testing.
    • A passion for good practices and clean code.
    • Proactive, with strong problem-solving skills, a team player and fun to work with.

      Nice to have

      • Experience with Tailwind CSS.
      • Basic knowledge of Figma.
      • Experience with Typescript.
      • Knowledge of the development of native or hybrid mobile apps.
      • Prior exposure to build pipeline design and management for JavaScript bundling.
      • Experience mentoring junior engineers and teams.
      • Basic experience with PHP and MySQL

        We offer

        • International environment with over 25 nationalities.
        • Continuous training: we do in and out house training. We have a selection of online resources such as O’ Reilly or Frontend Masters…
        • 100% Flexible schedule to balance work and personal life
        • Free “puentes” (when Tuesday or Thursday is a bank holiday THN will give Monday or Friday free).
        • Nice office in the Center of Barcelona.
        • Real impact on a fast-growing innovative technology company.
        • You can work from anywhere, either either from our comfy offices at the Barcelona city center or from the comfort of your home or favorite coffee shop. THN is a remote-friendly organization but we also foster in-person collaboration and provide the office space to make them happen.
        • "Flexible compensation plan” with Ticket Restaurant, Medical Insurance, Ticket Transport and Bonus for Nursery.
        • Coffee, tea, fresh fruit and Friday team breakfast.
        • Competitive compensation.
        • A harassment-free, supportive and safe environment to ensure the healthiest and friendliest professional experience fostering diversity at all levels.

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