Senior Engineer I (Front End)

Core responsibilities:

• Design, build, and maintain scalable front end applications using TypeScript and React
• Work closely with product managers and designers to deliver high-quality, customer-focused user experiences
• Build and maintain shared frontend platforms, patterns, and tooling that support hundreds of contributors
• Take ownership of frontend systems through development, testing, release, and ongoing improvement

This role contributes to Kaluza's Energy Retail platform, which plays a key role in enabling decarbonisation for energy companies and accelerating the shift to a clean, electrified future by modernizing how energy retailers operate globally.

Required skills and experience:

• Experience designing, building, and maintaining scalable front end applications using TypeScript and React
• Ability to work closely with product managers and designers to deliver customer-focused user experiences
• Experience building and maintaining shared frontend platforms, patterns, and tooling
• Ability to collaborate with backend and platform teams to ensure clean integration and reliable performance

Compensation and benefits:

• Salary: £60,000 - £75,000
• Pension Scheme
• Discretionary Bonus Scheme
• Private Medical Insurance + Virtual GP
• Life Assurance
• Access to Furthr - a Climate Action app
• Free Mortgage Advice and Eye Tests
• Perks at Work - access to thousands of retail discounts
• 5% Flex Fund to spend on benefits
• 26 days holiday plus 8 flexible bank holidays
• Progressive leave policies including 26 weeks full pay for new family additions
• Dedicated personal learning and home office budgets
• Flexible working arrangements

Kaluza is the Energy Intelligence Platform that turns energy complexity into seamless coordination, helping energy companies overcome today's challenges while accelerating the shift to a clean, electrified future by orchestrating millions of real-time decisions across homes, devices, markets and grids.