Senior Frontend Software Engineer

In this role you will:

• Work on K4B product features used by millions of corporate travelers
• Have end-to-end ownership of the UI, including testing, monitoring and troubleshooting
• Make architectural decisions and build prototypes
• Review and scope feature requests
• Drive technical debt reduction, oversee code quality, and pair with other developers
• Refactor and optimize existing code
• Work with geographically distributed teams
• Leverage modern AI tools & technologies to build excellent user interfaces

Please apply if you have:

• 4+ years of meaningful work experience building web applications
• Bachelor's degree or higher, preferably in a quantitative/technical field (e.g. Computer Science, Engineering, Physics, Math)
• Deep experience building layouts using CSS and HTML
• Advanced understanding of JavaScript, ideally with some experience using a modern UI framework or library (we use React, but Angular and Vue.js experience counts)
• Knowledge of performance considerations, especially with respect to browsers
• Experience working in Java, C#, or a similar object-oriented language
• Experience leveraging AI tools (Claude Code, Codex, Cursor or similar) to building high quality software solutions
• Ability to debug issues in a full-stack environment
• Work independently on solutions and designs with minimal oversight
• Produce scalable, high quality, and accurate work
• Estimate effort accurately and execute with pace
• Show good judgment in architecting software
• Use metrics to validate decision-making
• Own communication to key stakeholders on assigned projects
• Easily relate technical subjects to non-technical audiences
• Demonstrate leadership across teams and business functions

Benefits and Perks

• Work from (almost) anywhere for up to 20 days per year
• Focus on mental health and well-being: Company-paid therapy sessions through SpringHealth, Company-paid subscription to HeadSpace, Company-wide week off a year, No meeting Fridays
• Paid parental leave
• Generous paid vacation + time off for your birthday
• Paid volunteer time
• Focus on your career growth: Development Dollars, Leadership development, Access to thousands of on-demand e-learnings
• Travel Discounts
• Employee Resource Groups
• Competitive retirement and health plans
• Free lunch 2 days per week
• Fun quarterly events such as boat trips, arcades, ski trips, Thursday socials, and more