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Senior Frontend Software Engineer - React

Senior Frontend Software Engineer
In this role, you will make a meaningful contribution in ensuring we continue to move in the right direction. You will be working on a variety of exciting technologies. 

Our current tech stack includes React, TypeScript, Redux, CSS plus some proprietary tools for React data synchronisation with our backend through Restful API. It also includes some legacy parts of the applications built with backbone but we are in the process to migrate to the new stack. We also use Storybook / Cypress / React Testing Library and Jest to build our testing suite. Our application is deployed through automated pipelines in CI/CD. Everything runs in AWS

Here in the Treatwell Product & Tech team, we’re a nice bunch and we love to ship products. We believe in Agile principles and values, and our teams follow Scrum. We are on the path toward building a highly scalable system composed of continuously deployable applications. We like to use the right tech for the job but we don’t get seduced by the latest shiny fads.

About the Role:

  • Work as part of a cross-functional squad, collaborating to deliver incremental, meaningful changes to our customers.
  • Lead the development of key features, from breaking down requirements through solution design, implementation, and handling any production issues that may arise.
  • Play a pivotal role in expanding our hybrid app capabilities using React Native, contributing to both web and mobile applications.
  • Provide mentorship and guidance to junior engineers, enhancing their skills and promoting best practices.
  • Proactively identify opportunities to improve the reliability, performance, and architecture of our frontend systems.
  • Engage in code reviews, deploying changes, and ensuring the stability of the system in production.
  • Advocate for high-quality engineering practices and continuous improvement within the team.

About you: 

  • 5+ years of professional experience working with JavaScript, including substantial experience with React.
  • A solid foundation in TypeScript and modern frontend development practices.
  • You are familiar with some of our frontend tech stack and can learn the rest very quickly.
  • You understand component based CSS methodologies, like CSS modules.
  • You’re familiar with design systems and how to translate them into reusable components.
  • Proficiency in applying good engineering practices, such as automated testing, CI/CD pipelines, and code reviews.
  • The ability to contribute to high-performing Agile teams, collaborating effectively to deliver value consistently.
  • Experience in building and maintaining hybrid mobile applications using React Native.
  • A proactive approach to improving system quality, reliability, and scalability.
  • You’re able to develop your mentoring and leadership skills whilst collaborating with other Engineers.

About Treatwell

Hi, we’re Treatwell. Nice to meet you.

We’re a team of 700 passionate and brilliantly talented people across Europe. We’re the industry’s smartest salon management software, all connected to Europe’s leading bookings platform, working with over 50,000 salon partners across 13 countries, processing over 8 million bookings every month. And….breathe.

But we’re not done yet. We’re on an exciting journey to digitally revolutionise the hair and beauty community.

If this excites you, we might just have the role for you.

We’ll treat you with:

  • 28-days holiday, plus bank holidays
  • Monthly €40 Treatwell vouchers so you can treat yourself too
  • Mental health support through our partnership with Plumm
  • 100% remote position with flexible working
  • Growth funds for you to develop and grow with your team
  • All the tools / devices supplied to do the best job you can eg. laptop, monitor, keyboard etc

Equal Ops

Treatwell is an ‘Open to All’ employer and warmly welcomes everybody to the team. We are committed to making reasonable adjustments to the recruitment process as required. Please add any adjustment requests to your application

What You Should Know About Senior Frontend Software Engineer - React, Treatwell

As a Senior Frontend Software Engineer at Treatwell, you'll be at the forefront of developing exceptional user experiences while working with an exciting assortment of technologies! We are all about creating an agile and collaborative environment where your expertise in React and TypeScript will shine. Here, you'll dive into our current tech stack that includes Redux, CSS, and even some proprietary tools aimed at marrying our frontend with backend through Restful APIs. Plus, we are on an exhilarating journey of migrating legacy applications built with Backbone to a modern stack. Your role will involve not only enhancing our hybrid app capabilities with React Native but also providing mentorship to junior engineers, ensuring everyone thrives while delivering meaningful coding solutions. You’ll be a key player in a cross-functional squad and will engage in code reviews, automated testing with tools like Jest, and deploying updates through our CI/CD pipelines on AWS. At Treatwell, we’re passionate about the products we ship and embrace Agile principles fully. If you’re looking to contribute to transforming the hair and beauty community while enjoying a great work-life balance (with 28 days of holiday and flexible remote working), this might just be the perfect role for you!

Frequently Asked Questions (FAQs) for Senior Frontend Software Engineer - React Role at Treatwell
What are the main responsibilities of a Senior Frontend Software Engineer at Treatwell?

The Senior Frontend Software Engineer at Treatwell will lead the development of key features, collaborate within cross-functional squads to deliver valuable changes, and mentor junior engineers. You'll also work on migrating legacy applications to newer technologies while ensuring system reliability and performance throughout all deployments.

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What qualifications are needed for the Senior Frontend Software Engineer role at Treatwell?

Candidates must have over 5 years of professional experience with JavaScript, particularly with React and TypeScript. Familiarity with CSS methodologies, automated testing, and CI/CD processes are essential, as is the ability to contribute positively in an agile team environment.

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Is remote work an option for the Senior Frontend Software Engineer position at Treatwell?

Yes! Treatwell offers a fully remote position for the Senior Frontend Software Engineer. They understand the importance of work-life balance and provide flexibility to help you thrive in your role.

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What technologies will I work with as a Senior Frontend Software Engineer at Treatwell?

As a Senior Frontend Software Engineer at Treatwell, you'll engage with an array of technologies including React, TypeScript, Redux, and CSS. You'll also be involved in supporting hybrid applications using React Native and working with testing suites like Cypress and Jest.

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What benefits does Treatwell offer to Senior Frontend Software Engineers?

Treatwell values its employees by offering 28 days of holiday, monthly treat vouchers, mental health support, growth funds for professional development, and all necessary tools to ensure success in your work, including laptops and monitors.

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Common Interview Questions for Senior Frontend Software Engineer - React
Can you explain your experience with React and how you've used it in past projects?

In answering this question, you should outline specific projects where you've utilized React, highlighting your understanding of components, state management, and the overall architecture. Mention any challenges faced and how you overcame them, focusing on your role in the project's success.

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How do you ensure high-quality code in your projects?

Discuss your approach to coding standards, including performing code reviews, embracing automated testing, and utilizing CI/CD pipelines. Explain any tools or methodologies you apply to maintain consistent quality throughout development.

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Describe a time when you had to mentor a junior engineer.

Provide a specific example detailing how you supported a junior engineer in learning new skills or navigating a project. Focus on your approach to mentorship and the impact it had on their development and team collaboration.

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What strategies do you use for debugging and troubleshooting frontend issues?

Discuss your debugging processes, mentioning specific tools and techniques you utilize, such as console debugging, tracking requests in network tools, and reading through error logs. Highlight your systematic approach to identifying and resolving issues effectively.

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How do you keep up with the latest technologies and trends in frontend development?

Explain your approach to continuous learning, such as following industry blogs, attending webinars, or participating in developer communities. Emphasize the importance of staying current with evolving technologies to bring the best solutions to your work.

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What is your experience with testing frameworks like Jest or Cypress?

Detail your familiarity with testing frameworks, including how you've implemented them in your projects. Share examples of how these tools have improved the reliability and maintainability of your code over time.

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Can you discuss a challenging project and your role in overcoming obstacles?

Highlight a specific project where challenges arose, detailing your role in identifying solutions. Focus on collaboration, problem-solving skills, and any innovative approaches you used to ensure project success.

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How do you manage your workload and priorities in an Agile environment?

Discuss your methodologies for organizing tasks, such as using Agile frameworks like Scrum/Kanban. Share experiences where you've successfully met deadlines while ensuring quality deliverables and strong team dynamics.

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What is your experience with hybrid mobile applications using React Native?

Describe any specific projects where you've developed hybrid mobile applications with React Native. Share the skills you utilized, such as component design and state management, and discuss the unique challenges of hybrid development.

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Why do you want to work at Treatwell as a Senior Frontend Software Engineer?

Share your motivations for wanting to join Treatwell, referencing their commitment to innovation in the hair and beauty sector, the collaborative environment, and the opportunity for professional growth. Tailor your answer to reflect genuine enthusiasm for their mission.

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We're an eclectic group of 500 people working in offices throughout Europe, with over 20,000 local partners. It amounts to one amazing company: a 24/7 beauty bookings platform that puts customers and salon managers in control, lets you book at tim...

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Full-time, remote
DATE POSTED
March 20, 2025

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