Senior Product Reliability Engineer
Senior Product Reliability Engineer

Senior Product Reliability Engineer

Full-Time 100000 - 120000 £ / year (est.) Home office (partial)
Fyxer Limited

At a Glance

  • Tasks: Own the reliability of our AI Email Assistant and ensure seamless infrastructure.
  • Company: Join Fyxer, a fast-growing AI company backed by industry leaders.
  • Benefits: Competitive salary up to £120k, equity, and flexible work options.
  • Other info: Be part of a small, exceptional team focused on meaningful challenges.
  • Why this job: Make a real impact in a dynamic environment with cutting-edge technology.
  • Qualifications: Expertise in TypeScript, cloud experience, and a passion for problem-solving.

The predicted salary is between 100000 - 120000 £ per year.

This role pays up to £120k/year DOE + equity.

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. 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 Senior Product Reliability Engineer to sit within our platform team, responsible for the infrastructure and services that keep Fyxer running as we scale, including ownership for billing, integrations with third‑party apps, uptime and incident response. 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.

WHAT YOU’LL OWN

  • Plan and execute infrastructure migrations.
  • Be the last line of defence when things break: diagnose it, fix it, and make sure it doesn’t happen again.
  • Use quantitative and qualitative data to identify the highest‑leverage reliability improvements.
  • Build and maintain the scripts, workflows, and cloud architecture that the product runs on.
  • Work closely with product engineers to review new features before they ship.
  • Own the reliability standard across your product area.

WHAT WE’RE LOOKING FOR

  • Solid TypeScript. Expert level.
  • Serious cloud experience. Google Cloud or equivalent.
  • Deep database knowledge.
  • Production ownership.
  • Fullstack capability.
  • Genuine obsession with learning.

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. The people who thrive here are the ones who find that combination energising rather than daunting.

THE APPLICATION PROCESS

  • Submit your CV — no cover letter needed.
  • Personal interview with a team member (ca. 30 mins).
  • Live problem solving, remote (60 mins).
  • Coding Challenge, take‑home task (ca. 60 mins).
  • Lunch with the whole product reliability team (60 mins).

If this sounds like the right next step, simply apply with a LinkedIn profile or CV.

Senior Product Reliability Engineer employer: Fyxer Limited

Fyxer is an exceptional employer that fosters a dynamic and innovative work culture, where employees are empowered to take ownership of their projects and contribute to meaningful advancements in AI technology. Located in the vibrant Chancery Lane area of London, we offer competitive salaries, equity options, and a flexible work environment that includes remote work on Fridays. Our commitment to employee growth is evident through our focus on continuous learning and collaboration within a small, dedicated team, making it an ideal place for those seeking to make a significant impact in their careers.
Fyxer Limited

Contact Detail:

Fyxer Limited Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Product Reliability Engineer

✨Tip Number 1

Get your networking game on! Reach out to folks in the industry, especially those who work at Fyxer or similar companies. A friendly chat can open doors and give you insider info that could help you stand out.

✨Tip Number 2

Prepare for the live problem-solving session like it’s a coding competition. Brush up on your TypeScript skills and be ready to showcase your thought process. Remember, they want to see how you tackle real-world issues!

✨Tip Number 3

Don’t underestimate the power of a good lunch! Use that time with the product reliability team to not just impress them with your knowledge but also to show your personality. They’re looking for someone who fits into their tight-knit crew.

✨Tip Number 4

Finally, apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in being part of the Fyxer family. Let’s get you that dream job!

We think you need these skills to ace Senior Product Reliability Engineer

TypeScript
Cloud Architecture
Google Cloud
Database Design
Production Incident Management
Fullstack Development
Reliability Engineering
Scripting
GitHub Workflows
Problem-Solving
Quantitative Data Analysis
Qualitative Data Analysis
Feature Engineering
Learning Agility

Some tips for your application 🫡

Show Off Your Skills: Make sure your CV highlights your TypeScript expertise and cloud experience. We want to see how you've tackled production issues in the past, so don’t hold back on those juicy details!

Tailor Your CV: Customise your CV to reflect the specific requirements of the Senior Product Reliability Engineer role. Use keywords from the job description to show us you’re a perfect fit for our team.

Be Ready for Problem Solving: Prepare for the live problem-solving session by brushing up on your technical skills. Think about how you would approach real-world issues and be ready to demonstrate your thought process.

Keep It Simple: No need for a cover letter! Just submit your CV through our website. Keep it straightforward and focus on showcasing your relevant experience and passion for product reliability.

How to prepare for a job interview at Fyxer Limited

✨Know Your Tech Inside Out

Make sure you’re well-versed in TypeScript and cloud platforms like Google Cloud. Brush up on your database design knowledge too, as you’ll need to demonstrate your ability to diagnose and fix production incidents quickly.

✨Showcase Your Problem-Solving Skills

Prepare to discuss past experiences where you’ve tackled reliability issues head-on. Be ready to explain how you approached the problem, what solutions you implemented, and how you ensured it wouldn’t happen again.

✨Understand Fyxer's Product and Vision

Familiarise yourself with Fyxer’s AI Email and Meeting Assistant. Understand its features and the challenges it faces. This will help you align your answers with their goals and show that you’re genuinely interested in their mission.

✨Be Ready for Live Problem Solving

During the interview process, you’ll face a live problem-solving session. Practice coding under pressure and think aloud while you work through problems. This will showcase your thought process and technical skills effectively.

Senior Product Reliability Engineer
Fyxer Limited

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