Senior Front-End Engineer – Tech Lead

13 hours ago

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Cognito Education

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Education

Cognito Education is an educational platform offering comprehensive resources for students preparing for entrance exams, KS3, GCSE, and A-Level exams. The platform includes over 400 video lessons, handcrafted questions, flashcards, and thousands of interactive exam questions organized by topic, with built-in mark schemes. Cognito Education also provides past exam papers and utilizes progress tracking to help students identify their strengths and weaknesses. With over 70 million YouTube views and 500,000 students using their services, it's a complete solution for science and math subjects.

2 - 10 employees

📚 Education

📋 Description

• Build core platform features using React and TypeScript: Duolingo-style gamification, AI marking interfaces, progress tracking, and other high-impact student-facing experiences • Translate Figma designs into pixel-perfect, accessible implementations • Shape our testing practices - work with the team to establish pragmatic patterns for what's worth testing and how • Own technical direction for the front-end - you'll be the go-to person for architectural decisions, patterns, and standards • Lead our front-end team - currently two developers, with a React Native mobile developer likely joining soon. It's a small team, so the coordination overhead is light • Lead sprint planning for front-end work: prioritisation, estimation sanity-checks, and keeping tickets on track • Mentor and unblock other engineers through code reviews, pair programming, and potentially 1:1s

🎯 Requirements

• Strong React, Next.js, and TypeScript skills - you're comfortable building complex, performant web applications • Familiarity with back-end concepts - you don't need to be a back-end expert, but you understand how APIs, databases, and server-side logic work well enough to make informed architectural decisions across the stack (we use Node.js, GraphQL/Apollo Server, and MongoDB) • AI-native approach to development - you actively use tools like Cursor, Claude, etc. to accelerate your work • You've led or significantly influenced a front-end codebase before - setting patterns, making architectural calls, improving standards • You're comfortable giving direct feedback and helping less experienced engineers grow • You enjoy staying close to the code - you're drawn to the technical IC track rather than pure people management • You can take a rough concept and ship it without constant direction • You think about user impact and product outcomes, not just completing tickets • You're pragmatic - you know when to push for quality and when to ship fast • You can context-switch between deep coding work and helping others without losing momentum

🏖️ Benefits

• Competitive salary with regular reviews • 25 days + bank holidays • We'll provide whatever you need to do your best work • Typical hours 9am-5:30pm, but flexible around what works for you • Room to grow into more formal technical leadership as we scale • No unnecessary meetings or bureaucracy, focused on building things that matter