At a Glance
- Tasks: Lead reliability engineering for our AI Email and Meeting Assistant, ensuring seamless performance.
- Company: Join Fyxer, a fast-growing AI company backed by industry leaders.
- Benefits: Competitive salary up to £170K, equity, and hybrid work options.
- Other info: Be part of a small, exceptional team focused on solving real problems.
- Why this job: Make a real impact in a dynamic environment with cutting-edge technology.
- Qualifications: Expertise in TypeScript, cloud architecture, and database design required.
The predicted salary is between 120000 - 170000 € per year.
Location: London
Employment Type: Full time
Location Type: Hybrid
Department: Engineering
Compensation: £120K – £170K + equity
THE BASICS
This role pays up to £170k/year DOE + equity. Reporting to: Founding Engineer, Josh Harrison. Location: Chancery Lane, London — Mon–Thu in office, Fri WFH.
WHAT ARE WE BUILDING
Fyxer is an AI Email and Meeting Assistant that eliminates admin burden for professionals in client-facing roles. We understand your inbox, draft replies in your own voice, and take crisp meeting notes. We're a pure-play applied AI company, not a SaaS product with AI bolted on. We use fine-tuned open-source models, tool use, and retrieval-augmented generation. Users send 53% of the email drafts we generate. Since launching in March 2024, we've grown from $0 to $30M+ ARR. We raised a $10M Series A and a $30M Series B in under 18 months.
THE ROLE
We're hiring a Lead Product Reliability Engineer to sit within our platform team, a small, high-ownership group responsible for the infrastructure and services that keep Fyxer running as we scale, including taking ownership for billing, integrations with third-party apps, uptime and incident response. This isn't a ticket-execution role. You'll own the reliability standard for the whole company: what good infrastructure looks like, what it takes to ship safely, and how incidents get resolved and don’t repeat. You'll work across the full stack, from cloud architecture to database migrations, using deep technical knowledge and sound judgement to keep a fast-moving product on solid ground.
WHAT YOU'LL OWN
- Plan and execute infrastructure migrations, the kind where the wrong call takes the product down.
- Be the last line of defence when things break: diagnose it, fix it, and make sure it doesn't happen again.
- Use quantitative data (error logs, cloud metrics) and qualitative data (support tickets, user reports) to identify the highest-leverage reliability improvements.
- Build and maintain the scripts, workflows, and cloud architecture that the product runs on. This is a full-stack engineering role, not just configuration of tools. You'll ship code.
- Work closely with product engineers to review new features before they ship, ensuring they meet the reliability bar before they reach production.
- Own the reliability standard across your product area, so new features and onboardings don’t break what's already working.
WHAT WE'RE LOOKING FOR
The work in this role is what we call crunchy. Feature engineering is creative, there's rarely one right answer. Product reliability engineering is different: there is a right answer, and you need to find it fast, with deep knowledge of how systems behave under pressure.
- Solid TypeScript. Expert level. If you don't have this, you shouldn't apply.
- Serious cloud experience. Google Cloud or equivalent, at depth. Deployments, scripts, GitHub workflows, operational tasks.
- Deep database knowledge. Not just querying, but designing. Understanding the database design options available and how to find the most effective solution.
- Production ownership. When something breaks, you’re the one who fixes it.
- Fullstack capability. You’ll be designing and building features alongside our product engineers.
- Genuine obsession with learning. We look for a deep, self-driven obsession with learning and technical craft.
WE'RE DELIBERATE ABOUT HIRING
A small team of exceptional people, working hard on a problem they care about, will always beat a larger, less focused team. That intensity means this isn't a normal role, but it also means you'll move faster than anywhere else.
Lead Product Reliability Engineer employer: Madrona Venture Labs
Fyxer is an exceptional employer, offering a dynamic work environment in the heart of London where innovation meets collaboration. With a strong focus on employee growth and a culture that values deep technical expertise, team members are empowered to take ownership of their projects while enjoying competitive compensation and equity options. The hybrid work model allows for flexibility, ensuring a healthy work-life balance as you contribute to cutting-edge AI solutions that truly make a difference.
StudySmarter Expert Advice🤫
We think this is how you could land Lead Product Reliability Engineer
✨Tip Number 1
Network like a pro! Reach out to folks in your industry on LinkedIn or at meetups. A friendly chat can lead to opportunities that aren’t even advertised yet.
✨Tip Number 2
Prepare for those interviews! Research the company, understand their products, and think about how your skills can help them scale. We want you to shine!
✨Tip Number 3
Show off your projects! If you've built something cool or solved a tricky problem, share it during your interview. It’s a great way to demonstrate your expertise and passion.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive!
We think you need these skills to ace Lead Product Reliability Engineer
Some tips for your application 🫡
Show Your Passion:When you're writing your application, let your enthusiasm for the role and our mission shine through. We want to see that you’re genuinely excited about the work we do at Fyxer and how you can contribute to our growth.
Tailor Your CV:Make sure your CV is tailored to highlight your experience with product reliability engineering and the specific skills we’re looking for, like TypeScript and cloud architecture. We love seeing how your background aligns with what we need!
Be Clear and Concise:Keep your application clear and to the point. We appreciate straightforward communication, so avoid jargon and fluff. Just tell us what you’ve done, how you did it, and the impact it had.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team!
How to prepare for a job interview at Madrona Venture Labs
✨Know Your Tech Inside Out
Make sure you’re well-versed in TypeScript and cloud technologies, especially Google Cloud. Brush up on your database design knowledge too, as you'll need to demonstrate your ability to diagnose and fix issues quickly during the interview.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific examples where you've tackled reliability issues or infrastructure migrations. Be ready to explain your thought process and how you ensured that problems didn’t recur. This role is all about finding the right answers under pressure!
✨Demonstrate Your Passion for Learning
Fyxer values a genuine obsession with learning. Share instances where you’ve gone above and beyond to improve your skills or tackle complex problems. Show them that you’re not just looking for a job, but a place where you can grow and contribute meaningfully.
✨Understand the Company’s Mission
Familiarise yourself with Fyxer’s product and its impact on client-facing roles. Being able to articulate how you can contribute to their mission of reducing admin burdens will set you apart. It shows you’re not just interested in the role, but also in the company’s vision.
