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- Tasks: Lead the development of innovative AI features and drive product strategy.
- Company: Fyxer AI, a fast-growing applied AI company backed by top investors.
- Benefits: Competitive salary, equity options, and a dynamic work environment.
- Other info: Enjoy extreme autonomy and a clear path for career growth.
- Why this job: Join a high-impact team and shape the future of AI technology.
- Qualifications: 5+ years in software development with expertise in TypeScript or Python.
The predicted salary is between 140000 - 250000 £ per year.
Salary: £140K – £250K + Equity
Company Description: Fyxer AI - Series A pure-play applied AI company backed by Marc Benioff, Madrona, and Lakestar.
Job Description: Join a high-intensity team of 12 engineers that scaled from $1M to $30M ARR in just one year. As a Lead Product Engineer, you will own entire product areas without PM interference, building sophisticated AI-generated email systems that currently automate 53% of user drafts for a global professional audience.
Location: London, UK
Why this role is remarkable:
- Ranked 7th in Andreessen Horowitz’s list of top AI apps based on real spend data, alongside $10B+ companies.
- Extraordinary growth trajectory from $1M to $30M ARR in 2025, with a clear path to $100M ARR by 2026.
- Massive ownership with zero bureaucracy, no product managers, and company-wide deep-work focus time until 3pm daily.
What you will do:
- Lead the end-to-end development of core AI features using TypeScript, fine-tuned open-source models, and RAG architectures.
- Drive product strategy by translating ambiguous user problems into high-impact technical solutions without needing external specifications.
- Build and optimize scalable infrastructure to support rapid user growth while maintaining elite engineering standards and craft.
The ideal candidate:
- 5+ years of experience shipping production software with deep expertise in TypeScript or Python and end-to-end system ownership.
- Proven track record of building and deploying modern AI/ML solutions, including LLMs, embeddings, and inference optimization.
- Founder-level mindset with a bias for action, comfortable operating with extreme autonomy in a fast-paced, high-stakes environment.
Lead Product Engineer (£140K – £250K + Equity) at Fyxer AI in London employer: Jack & Jill
Contact Detail:
Jack & Jill Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Lead Product Engineer (£140K – £250K + Equity) at Fyxer AI in London
✨Tip Number 1
Get to know Jack! He’s your go-to AI for understanding your skills and what you want in a job. Chat with him on our website to get personalised advice and find the best opportunities tailored just for you.
✨Tip Number 2
Don’t underestimate the power of networking! Connect with people in the industry, especially those who might know about roles like Lead Product Engineer. A friendly chat can open doors you didn’t even know existed.
✨Tip Number 3
Prepare for your chat with Jill! She’s looking for candidates who fit the bill, so brush up on your experience with TypeScript and AI/ML solutions. Be ready to showcase your skills and how you can contribute to Fyxer AI.
✨Tip Number 4
Follow up after your conversation! If you’ve had a chat with Jack or Jill, don’t hesitate to send a quick thank you note. It shows your enthusiasm and keeps you fresh in their minds as they consider candidates for the role.
We think you need these skills to ace Lead Product Engineer (£140K – £250K + Equity) at Fyxer AI in London
Some tips for your application 🫡
Be Authentic: When you're writing your application, let your personality shine through! We want to see the real you, so don’t be afraid to share your passion for AI and product engineering. Show us why you're excited about this role at Fyxer AI.
Tailor Your Application: Make sure to customise your application for the Lead Product Engineer position. Highlight your experience with TypeScript or Python and any relevant AI/ML projects you've worked on. We love seeing how your skills align with what Fyxer AI is looking for!
Showcase Your Achievements: Don’t just list your responsibilities; tell us about your accomplishments! Use specific examples of how you've driven product strategy or built scalable infrastructure in the past. We want to know how you’ve made an impact in your previous roles.
Follow the Steps: Remember to apply through our website! It’s super easy: just click 'Talk to Jack' and have a chat. This step is crucial as it helps us understand your experience and ambitions better, making it easier for Jill to consider you for the role.
How to prepare for a job interview at Jack & Jill
✨Know Your Tech Inside Out
Make sure you’re well-versed in TypeScript and Python, as these are crucial for the role. Brush up on your experience with AI/ML solutions, especially LLMs and embeddings, so you can confidently discuss your past projects and how they relate to Fyxer AI's needs.
✨Showcase Your Autonomy
Fyxer AI values a founder-level mindset and extreme autonomy. Prepare examples from your previous roles where you took initiative and drove projects without needing external specifications. This will demonstrate that you can thrive in their fast-paced environment.
✨Understand Their Product Strategy
Research Fyxer AI’s current products and their growth trajectory. Be ready to discuss how you would approach translating user problems into technical solutions. This shows you’re not just a coder but someone who can think strategically about product development.
✨Prepare Questions That Matter
Think of insightful questions to ask during your interview. Inquire about their engineering culture, the challenges they face with scaling, or how they envision the future of their AI products. This shows your genuine interest in the company and the role.