Senior Software Engineer – Front-End

At Speechmatics, we’re expanding our user platform offering. We're looking for a Senior Front-End Software Engineer with a strong product mindset to help drive that growth. This is an opportunity to own end-to-end feature development at a leading-edge AI company, from shaping the user experience through to shipping and iterating based on real user feedback and analytics data.

What you'll do

• Own product features from ideation through to delivery, contributing to UX thinking, frontend execution, and post-launch iteration
• Build polished, accessible user interfaces using React, JavaScript, HTML, and CSS
• Make UX and UI decisions independently, collaborating closely with designers and PMs rather than waiting on detailed handoffs
• Design and run A/B tests to validate product decisions and surface insights that improve the user experience
• Use analytics tooling such as Mixpanel to understand how people interact with the product and feed that learning back into what gets built
• Partner with backend engineers, product managers, and designers to ship features that genuinely move the needle for users and the business
• Write and maintain robust UI tests, taking ownership of quality in production and at scale
• Run user interviews and meet customers to understand how people use the product and what drives adoption

What you'll need

• Proficiency in React, JavaScript, HTML, and CSS with a track record of shipping production-quality frontend code
• A product-minded engineering approach
• Comfort owning UX and UI decisions independently
• Hands-on experience with iterative development practices, including A/B testing and feature experimentation
• Familiarity with user analytics tools such as Mixpanel or a comparable platform
• Experience with UI testing frameworks and a solid grounding in frontend engineering best practices
• Confidence collaborating cross-functionally with designers, PMs, and backend engineers
• A track record of using user feedback and data to improve features

Nice to have

• Experience using coding agents (eg Claude, Codex, OpenCode) to improve productivity and code quality
• Exposure to backend development, including RESTful APIs and cloud deployments
• Experience conducting or participating in user interviews as part of a product discovery process