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Senior Software Engineer – Front-End

Speechmatics· Engineering
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Hybrid (London, England, United Kingdom)full-timePosted 3w ago

About the role

Senior Front-End Software Engineer to own end-to-end feature development for Speechmatics' user platform, shaping UX from ideation through shipping and iteration in a hybrid London-based role.

Responsibilities

  • 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

Qualifications

  • 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

Skills

Required:ReactJavaScriptHTML/CSSUX/UI decision-makingA/B testingAnalytics (e.g., Mixpanel)

Benefits

  • No matter what stage of your career you’re at - from paid internships and first-job opportunities through to management and senior positions - we’ll support you with training and development
  • Incredibly flexible working, regular company lunches, and birthday celebrations
  • Private Medical and Dental for you and your family
  • Global working opportunities, generous holiday allowance and pension/401K matching
  • Working from home allowance for tech or home office equipment
  • Choice of laptop and accessories
  • Parental leave support including adoption assistance and reproductive health services
Last updated Oct 1, 2026. Interested? Apply on the company site.

About Speechmatics

Speechmatics offer the most accurate AI speech technology for enterprise - with AI transcription, real-time translation and text-to-speech components. Try our Speech API today!

AI speech technologyAI voiceCase studiesLow-latency speech-to-textMultilingualReal-time transcriptionSpeech APIsSpeech APIs powering Voice AI
Company profileWebsite

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