Senior Frontend Engineer Visa Sponsorship Available

June 29, 2025
75 - 100 / year

Job Description

Your Mission

We’re looking for an experienced Senior Frontend Engineer to become a key part of our development team. In this role, you’ll design and build modern, high-performance user interfaces using React.js, TypeScript, GraphQL, Jest, Cypress, and Vite as we shape the future of AI-driven digital advertising.

Your work will include testing and optimizing front-end performance, documenting the codebase, mentoring teammates, and helping plan and estimate project workloads.

You’ll collaborate closely with a cross-functional group led by the Engineering Manager, contributing to our multi-tenant SaaS platform. This is an ideal opportunity if you’re passionate about raising engineering standards and championing an AI-first approach across products and workflows.

To excel in this role, you should bring deep expertise in React, strong front-end development skills, and a solid understanding of progressive web applications. Ultimately, you’ll help design and build modern interfaces that deliver exceptional experiences—and guide your teammates to do the same.

Your Profile

  • At least 6 years of professional experience in a similar role
  • Expert knowledge of TypeScript, JavaScript, CSS, HTML, and modern frontend languages
  • A strong focus on quality and a genuine passion for crafting user-friendly interfaces
  • An AI-first mindset, integrating automation and machine learning into engineering practices
  • Solid experience with tools such as React.js, Vite, Jest, and Cypress.js
  • Proficiency in browser-based debugging and performance optimization
  • Comfortable with tools like git, npm, Docker, and Jira
  • Excellent troubleshooting skills
  • Strong project management abilities
  • A proven track record of mentoring colleagues with empathy and respect

Your Responsibilities

  • Collaborate with your team to discuss ideas and plan user interfaces
  • Review application requirements and design proposals
  • Identify user interactions and translate them into functional components
  • Develop responsive interfaces using React concepts and TypeScript
  • Troubleshoot issues and debug front-end code
  • Design and maintain front-end architecture supporting smooth user experiences
  • Write automated unit, end-to-end, and visual regression tests
  • Monitor and enhance performance across browsers and devices
  • Keep documentation up to date and maintain clear records of changes
  • Take part in code reviews and technical design discussions
  • Estimate workloads, write tasks, and help others prioritize
  • Mentor team members and support their growth

Why Join Us?

Factor Eleven’s tech department operates like an in-house startup, driving our SaaS product suite that powers localized digital advertising for businesses of all sizes. We’re the engine behind Factor Eleven’s success—pushing the boundaries of what our platform can do and raising the bar for engineering quality every day.

If you’re inspired by impactful work, love to innovate, and want to contribute to a fast-growing ad-tech leader, we’d love to have you on the team. Enjoy the freedom and camaraderie of our fully remote culture while helping shape the future of digital advertising.

Perks and Benefits

  • Competitive, transparent salaries above market rates
  • Work remotely from anywhere in Europe
  • Flexible hours and part-time arrangements
  • Relocation and visa support if needed
  • Regular feedback and clear expectations
  • Personal and professional development budget
  • Team gatherings and company events
  • Budget for your home office, co-working space, or working together in person