Staff Reliability Engineer (Full Stack) in London

Staff Reliability Engineer (Full Stack) in London

London Full-Time 100000 - 130000 £ / year (est.) Working from home possible
Feeld

At a Glance

  • Tasks: Enhance reliability of production systems and lead incident responses.
  • Company: Join Feeld, a remote-first, inclusive tech company reshaping dating and sexuality.
  • Benefits: Enjoy flexible hours, unlimited time off, and a home office budget.
  • Other info: Be part of a diverse team that values transparency and personal growth.
  • Why this job: Make a real impact on innovative projects while working with cutting-edge technology.
  • Qualifications: Experience in backend systems, TypeScript/Node.js, and incident response leadership.

The predicted salary is between 100000 - 130000 £ per year.

Feeld is building a world where everyone is more intimately connected to each other and themselves. We’re an inclusive, human‑centred product with a distributed engineering team. We’re hiring a Staff Reliability Engineer (Full Stack) to raise the reliability and operability of our production systems across backend and mobile integration. This role exists now to improve how we detect, respond to, and prevent production incidents, and to strengthen the engineering practices (documentation, runbooks, quality bars) that help teams move quickly without compromising stability.

This is a hands‑on individual contributor role with significant cross‑team influence: you’ll lead through technical decisions, incident leadership, and pragmatic improvements to systems and process.

Team context

  • Reporting line: Sits on the Platform team reporting to the Head of Platform Engineering. Works closely with engineering leadership and partners day‑to‑day primarily with backend engineers.
  • Scope & influence: You’ll collaborate across squads to improve production ownership, reliability, and backend↔mobile integration patterns.
  • Ways of working: Remote-first, async-friendly, high trust; you’ll be expected to communicate clearly in writing and help teams adopt consistent operational practices.

What success looks like

Within your first year, you will have:

  • Reduced incident frequency and/or impact through concrete reliability improvements (e.g., better alerting, safer deploy patterns, guardrails, playbooks).
  • Made incident response more effective (clear ownership, faster MTTR, better post-incident follow‑through).
  • Delivered improvements to backend/mobile integration that reduce breakages and production risk.
  • Established (or materially improved) documentation and operational standards that other engineers consistently use.

What you will do

  • Own reliability outcomes across critical backend services and their integration with mobile clients (React Native).
  • Lead technical problem-solving during incidents: coordinate response, diagnose root causes, communicate status, and drive to resolution.
  • Build and evolve monitoring/observability (dashboards, alerts, tracing, logging) that enables fast detection and diagnosis.
  • Drive post‑incident reviews (blameless) and ensure learnings become durable fixes (tech changes, runbooks, automation, process updates).
  • Improve engineering safety and quality: guardrails, safer migrations, feature-flag practices, rollout strategies, and resilience patterns.
  • Partner with product, design, QA, and engineering early to align delivery plans with operational risk and reliability needs.
  • Strengthen documentation and onboarding: architecture notes, runbooks, service ownership docs, and “how we work” guides.
  • Mentor engineers through pairing, reviews, incident shadowing, and pragmatic coaching on production ownership.

Requirements

Must-haves

  • Significant experience building and operating production backend systems at scale, including debugging distributed systems and performance issues.
  • Strong TypeScript/Node.js (or equivalent) backend experience; comfort working across services and APIs.
  • Proven incident response leadership: on-call participation, triage, mitigation, and root-cause analysis (RCA) with follow-through.
  • Solid observability skills: practical experience with logging/metrics/tracing and turning signals into actionable alerts and dashboards.
  • Experience collaborating with mobile teams and understanding mobile↔backend integration concerns (e.g., API compatibility, releases, feature flags).
  • Demonstrated Staff-level IC leadership: influence through design reviews, technical direction, documentation, and cross-team alignment.

Nice-to-haves

  • React Native experience and/or strong understanding of mobile architecture patterns and release constraints.
  • AWS (or similar cloud) experience and familiarity with infrastructure-as-code, CI/CD, and production tooling.
  • Experience designing reliability programs (SLOs, error budgets, incident process) and running operational excellence improvements.
  • Experience with PostgreSQL / Redis and performance tuning in high-traffic systems.
  • Experience in a high-growth environment where prioritisation and pragmatic trade-offs are essential.

Benefits

Feeld is an independent, experimental and fully remote organisation reshaping the dialogue on dating and sexuality. The company was founded in 2014 and has evolved since to become the open, distributed structure it is now. We have a naturally agile and fluid culture. The whole team is fully remote, which means you work where and when helps you perform at your best. We regard autonomy highly and treat our organisation as a product – we iterate, improve and test things internally to see what works best for everyone.

Our culture

We believe in creating a safe work environment through humanity, fluidity, safety, transparency and progressiveness. When hiring, we look for culture add rather than culture fit. Because we are a fully remote team, it’s especially important that we create an environment where our colleagues feel included and connected as humans.

Diversity, equity, inclusion and belonging at Feeld

Feeld promotes open-mindedness, inclusion, diversity and kindness, both in the world and among our own workforce. We encourage and welcome applications from people with a history of marginalisation, whether because of race, gender expression or identity, sexual orientation, neurodivergence, national origin, disability (seen or unseen) or any confluence of intersectional identities. Our goal is a barrier-free application process and working environment. If you require further details or assistance or have any questions about this process, please let us know at hr@feeld.co.

Compensation and perks

We are conscious of how our work and decisions impact other humans and the environment. We design our product and organisation with consideration for the wellbeing of our Members and colleagues. Feeld’s way of working is designed to proactively prevent burnout and an “always on” culture. We believe in technology and working environments that enable people to live a meaningful, fulfilled life.

Therefore, we offer our staff:

  • Flexible working hours
  • Unlimited paid time off
  • A fully remote working situation
  • Home office budget
  • Learning & development budget
  • On demand therapy sessions and mental health support via Spill
  • In-person meet ups

Our compensation system is one of the ways we work to uphold equity and inclusion at Feeld. Just as we strive to enable honest expression on our platform, we strive for openness of information within the organization. Internally, we keep decision-making transparent to keep each other accountable and make sure all voices are heard. That is why we offer a compensation system that is transparent, honest, and equitable. Additionally, we believe all humans deserve to earn a competitive wage, so we offer a Baseline Freedom Salary of £60,000 GBP per year for any role that indexes below £60,000 GBP per year.

Estimated compensation for this role: Total cash compensation for this role varies by geographic location. We estimate the market-competitive compensation range for this position to be between £100,000 - £130,000 GBP.

Our interview process

Your first conversation with Feeld will be a screening call with our recruiter, where you’ll be able to ask - and receive answers - regarding any general questions you have and to confirm the role is a fit for what you’re seeking. Your second conversation will connect you directly with the hiring manager for the role you’re applying to. Here, you’ll have a chance to ask more questions about the work you’ll be doing. This conversation will also focus on your past work experiences.

The next step for most of our roles is a candidate challenge. This is an evaluation of the skills relevant to be successful in the role and generally takes about an hour to complete. Your third conversation allows you the opportunity to meet the team members you might be working with on a daily basis. Here, you’ll be able to ask questions about team processes, workflow, and the employee experience at Feeld.

We generally make an offer within 2 weeks of our final call, and offer a flexible start date that can begin as early as the next Monday after you sign our offer documentation. Of note: all of our interviews are conducted remotely, and our interviewers will work with you to find an agreeable interview time based on mutual availability.

We understand we're asking you to invest your time and best efforts in our process, and are appreciative of getting the chance to better know who you are as a person and candidate. In return, we’re committed to offering transparent communication and prompt feedback as you navigate this application with us.

To find out more about Feeld, download our app (available on iOS and Android).

Staff Reliability Engineer (Full Stack) in London employer: Feeld

At Feeld, we pride ourselves on being an exceptional employer that champions a fully remote work culture, allowing our Staff Reliability Engineers to thrive in a flexible environment. With unlimited paid time off and robust mental health support, we prioritise employee well-being while offering opportunities for professional growth and development in cutting-edge technologies like TypeScript and AWS. Join us to be part of a forward-thinking team dedicated to enhancing system reliability and making a meaningful impact.

Feeld

Contact Details:

Feeld Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Staff Reliability Engineer (Full Stack) in London

Join Local Tech Meetups

Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Feeld or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!

Contribute to Open Source Projects

Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Feeld.

Tap into Online Developer Communities

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Explore Job Boards Specifically for Tech Roles

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We think you need these skills to ace Staff Reliability Engineer (Full Stack) in London

Reliability Engineering
Incident Response Leadership
TypeScript
Node.js
Debugging Distributed Systems
Root Cause Analysis (RCA)
Observability Skills

Some tips for your application 🫡

Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.

Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Feeld.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Feeld and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!

Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!

How to prepare for a job interview at Feeld

Brush Up on Your Coding Skills

For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.

Know Your Tools and Frameworks

Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Feeld uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.

Showcase Your Projects

Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.

Prepare for Behavioural Questions

While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.