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Staff Engineer (Full Stack)

Feeld London, England, United Kingdom


No Relocation

Posted: June 24, 2026

Job Description

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 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.
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 Engineer (Full Stack) to raise the reliability and op...

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 prioritization and pragmatic trade-offs are essential.

Additional Content

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 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.
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 Engineer (Full Stack) to raise the reliability and op...

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 prioritization and pragmatic trade-offs are essential.