You will serve as the technical anchor for platform reliability at a hyper-growth AI firm that scaled from $0 to $30M+ ARR in under 18 months. This high-ownership role involves architecting resilient cloud infrastructure, leading incident response, and ensuring the stability of a product that automates critical workflows for global professionals.
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Lead Product Reliability Engineer at Fyxer AI
Join one of London's fastest-growing AI startups as a Lead Product Reliability Engineer. Backed by heavyweights like Marc Benioff and 20VC, this company has exploded from $0 to $30M+ ARR in record time. As a cornerstone of the platform team, you'll earn up to £170k + equity while owning the infrastructure and reliability standards for a product used by thousands of professionals. If you are a TypeScript expert who thrives on high-stakes cloud architecture and solving 'crunchy' technical problems, this is your chance to shape the foundation of a generational AI company.
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Location
London, United Kingdom
Compensation
£120k-£170k + Equity
Company
Fyxer AI
Role overview
SoftwareLondon, United KingdomSeries B (VC-backed)
Fyxer AI is an AI-powered executive assistant designed to enhance productivity for professionals by managing emails and meetings. The product is integrated directly into Gmail and Outlook to provide features such as automatic email categorization, pre-drafted email replies in the user’s tone, and a Meeting Notetaker that joins virtual meetings to document notes and prepare follow-up emails automatically. The assistant learns continuously from the user's previous correspondence to provide more personalized and increasingly accurate support over time. Fyxer targets client-facing professionals and teams, aiming to save significant administrative time and streamline email and meeting workflows through its SaaS platform.
Backed by Madrona, Lakestar Capital, 20VC, 20Growth, Marc Benioff.
What you will do
- Architect and execute high-stakes infrastructure migrations and database redesigns in Google Cloud with a focus on zero-downtime deployments.
- Act as the final line of defense for production incidents, utilizing deep technical forensics to diagnose issues and implement permanent systemic fixes.
- Partner with product engineers to review and harden new features before they ship, ensuring they meet rigorous reliability bars at massive scale.
Who this is a fit for
- Expert-level TypeScript proficiency with a proven ability to diagnose and fix production code rapidly during high-pressure outages.
- Significant experience in cloud architecture (GCP preferred) and deep database design, capable of justifying architectural choices against complex scaling constraints.
- A high-ownership mindset with previous experience as a primary responder for production systems, maintaining composure while solving mission-critical technical failures.
Why this role is remarkable
- Join an elite engineering culture that has raised $40M across Series A and B rounds in less than 18 months from premier investors like Madrona and David Singleton.
- Massive scale and impact: help manage a product where users already accept over 50% of AI-generated outputs, driving rapid growth toward $30M+ ARR.
- Exceptional autonomy and leadership: as a lead within a small platform team, you will set the reliability standard for the entire company and influence every architectural decision.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Fyxer AI wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.