Frontend Developer

Frontend Developer - React

Xelix

Location:
United Kingdom , London

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

60000.00 - 75000.00 GBP / Year

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Job Description:

At Xelix, we work with some of the world’s largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate – moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up – things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively. We have a team 150 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun, and love to celebrate a milestone together. In this role you’ll grow, be challenged and help shape the future of Xelix. If you’re excited about building something special with us, we’d love to hear from you.

Job Responsibility:

Collaborating with designers and other developers to build websites from specifications produced in Figma
Creating visually appealing experiences using CSS3 for frontend applications
Implementing robust and scalable solutions
Developing, using and designing REST APIs and web-socket solutions to efficiently deliver application components
Performing testing and quality assurance activities on different browsers and devices to ensure compatibility and responsiveness
Implementing performance improvement strategies, testing, and measuring application performance
Mentoring other team members, sharing knowledge and experience, and helping improve our team's abilities in the process
Ensuring the quality of code by writing comprehensive tests and participating in code reviews

Requirements:

Expert knowledge of modern syntax JavaScript and React
Proficiency in JavaScript, TypeScript and CSS3
Familiarity with modern application architecture and design patterns
Excellent understanding of the complete software development life cycle
Strong Computer Science fundamentals and problem-solving skills
Ability to effectively communicate complex technical concepts to team members and stakeholders
Passionate about testing, rapid iteration and collaborative problem solving. (e2e, unit tests, integration tests)
Knowledge in Test tools like Playwright, Jest

Nice to have:

An interest and aptitude in data visualization, transforming complex datasets into intuitive visual representations
Skills in User Experience (UX) and User Interface (UI) design, demonstrating a keen eye for aesthetics and attention to user journeys

What we offer:

27 days of annual leave (including 3 days Christmas closing), with the option to roll over 3 days
Hybrid working with one day a week from our dog-friendly Hoxton office and on-site gym
Comprehensive private medical & dental cover with Vitality
Enhanced parental leave pay
Learning & development culture – £1,000 personal annual budget
We’re carbon-neutral and are working towards ambitious carbon reduction goals
Lots of team socials & activities
Annual team retreat

Additional Information:

Job Posted:
January 26, 2026

Employment Type:

Fulltime

Work Type:

Hybrid work

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