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For Companies At a Glance
- Tasks: Join a small team to build an AI productivity tool that transforms client-facing work.
- Company: Fyxer AI is a fast-growing startup revolutionising productivity for professionals with innovative software.
- Benefits: Enjoy a competitive salary, equity, and the chance to shape product culture.
- Why this job: Be part of a mission-driven team, with full ownership and the opportunity to impact real users.
- Qualifications: Expert in React & TypeScript with 4+ years experience, ideally in early-stage companies.
- Other info: No cover letter needed; quick interview process with coding challenges and team lunch.
The predicted salary is between 80000 - 120000 £ per year.
About Us
At Fyxer AI, we’re building an AI productivity tool that eliminates the admin burden for client-facing professionals - think real estate agents, consultants, recruiters, people who live in their inboxes. Our product handles the heavy lifting: sorting emails, drafting replies in your tone of voice, taking smart meeting notes, and surfacing next steps. It integrates directly with Gmail, Outlook, and Zoom with no onboarding, no new tabs. Just high-utility software that gets used. Since launching in May 2024, we’ve gone from $0 to $11M ARR, raised a $10M Series A from top-tier investors (including Marc Benioff and 20VC), and are scaling fast toward $50M.
What You’ll Be Building
We’re not looking for ticket-takers. We’re hiring the top % of product-minded engineers who want full ownership of what they ship from shaping the roadmap to writing world-class code. You’ll be part of a small, senior engineering team trusted to:
- Dive deep into usage data and customer feedback
- Propose and build features that meaningfully improve the product
- Architect clean, scalable systems
- Move fast, ship often, and take pride in quality
You Might Be a Fit If:
- You’re a React & TypeScript expert with deep technical hands-on experience of more than 4+ years
- You’ve worked in early-stage companies (sub-100 people), or you’ve been a founder
- You care about product as much as code and you’re eager to explore customer problems, not just implement specs
- You’re full-stack enough to jump into backend APIs, write SQL queries, and handle devops basics
- You thrive in high intensity, high ownership environments
- You’re excited about AI, not just as a buzzword but for its practical power to transform work
Our Stack:
- Frontend: React, TypeScript
- Backend: TypeScript on Google Cloud (Cloud Functions, Firestore, Pub/Sub)
- Data: BigQuery, Looker
- Monitoring: Sentry, GCP Logging
- DevOps & CI/CD: GitHub Actions
What You’ll Get:
- £95k–£115k + significant equity & other benefits
- Deep ownership of a fast-growing product
- A team of high-calibre, mission-driven builders
- The opportunity to shape product and engineering culture early
- Fast growth, real autonomy, and zero bureaucracy
Interview Process
Submit your CV (no cover letter needed) Intro call with someone from the team with an initial paired programming exercise (30 mins total) Product case study (45 mins) Live coding interview (45 mins) Team lunch and culture fit conversation (60 mins)
We’re building a team of the sharpest product engineers in London. If you want to move fast, ship boldly, and build something that truly helps people, let’s talk.
Senior Product Engineer (React/Typescript) - AI Startup employer: Fyxer Limited
Contact Detail:
Fyxer Limited Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Product Engineer (React/Typescript) - AI Startup
✨Tip Number 1
Familiarise yourself with Fyxer AI's product and its unique features. Understanding how their AI tool alleviates the admin burden for client-facing professionals will help you demonstrate your genuine interest in the role during interviews.
✨Tip Number 2
Prepare to discuss your experience with React and TypeScript in detail. Be ready to share specific examples of projects where you've taken ownership and made impactful decisions, as this aligns with their search for product-minded engineers.
✨Tip Number 3
Showcase your ability to work in fast-paced environments by highlighting any previous roles in early-stage companies or startups. This will demonstrate that you can thrive under pressure and adapt quickly, which is crucial for Fyxer AI's culture.
✨Tip Number 4
Engage with the AI community and stay updated on the latest trends and technologies. Being able to discuss current developments in AI during your interview will show your enthusiasm and commitment to the field, making you a more attractive candidate.
We think you need these skills to ace Senior Product Engineer (React/Typescript) - AI Startup
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with React and TypeScript, as well as any relevant work in early-stage companies. Emphasise your product-minded approach and any ownership you've taken in previous roles.
Showcase Relevant Projects: Include specific projects where you've built features or improved products using your technical skills. Detail your role in these projects and the impact they had on the end-users or the business.
Prepare for Technical Interviews: Brush up on your coding skills, especially in React and TypeScript. Be ready to discuss your thought process during the paired programming exercise and live coding interview, as well as how you approach problem-solving.
Demonstrate Passion for AI: In your application, express your enthusiasm for AI and its practical applications. Share any personal projects or experiences that showcase your interest in AI technology and how it can transform work processes.
How to prepare for a job interview at Fyxer Limited
✨Showcase Your Technical Expertise
As a Senior Product Engineer, it's crucial to demonstrate your deep knowledge of React and TypeScript. Be prepared to discuss specific projects where you've used these technologies, highlighting challenges you faced and how you overcame them.
✨Understand the Product and Its Users
Fyxer AI is all about enhancing productivity for client-facing professionals. Research their product thoroughly and think about how you can contribute to improving it. Be ready to share insights on user pain points and how your skills can address them.
✨Prepare for Live Coding Challenges
The interview process includes a live coding session, so practice coding problems that involve React and TypeScript. Focus on writing clean, efficient code and be ready to explain your thought process as you work through the problems.
✨Demonstrate Your Passion for AI
Since Fyxer AI is an AI startup, showing genuine enthusiasm for AI and its applications in productivity tools will set you apart. Share any relevant experiences or projects that highlight your interest and understanding of AI technologies.
