Staff Engineer

Company: Plum
Apply for the Staff Engineer
Location: London
Job Description:

Requirements

  • Proven track record of technical leadership, preferably in a mobile-heavy or full-stack capacity
  • Experience designing and architecting systems at scale
  • Deep experience with A/B testing frameworks, experimentation platforms, or data-intensive growth loops
  • High level of pragmatism; you understand when to build for scale and when to optimise for speed of learning
  • Positive and solution-oriented mindset
  • Strong planning and prioritisation skills, with the ability to translate high-level business goals into actionable technical strategies across the stack
  • Ability to share product insight with stakeholders, challenge product decisions with data, and act as a bridge between Engineering, Product, and Data Science
  • Demonstrated capacity to clearly and concisely communicate about complex technical, architectural, and/or organisational challenges to both technical and non-technical executives
  • Experience in working within a cross-functional team and collaborative environment; ability to facilitate technical decision-making and resolve conflicts across teams
  • Self-motivated and self-managing, with excellent organisational skills and a focus on high-leverage work
  • Comfortable working with both strongly and dynamically typed languages. We value your ability to architect

What the job involves

  • At Plum we’re looking for engineers who are passionate about both technology and bringing the best product to our customers
  • To achieve this mission, we need technical leaders who can look beyond individual features to drive the technical strategy that accelerates our user growth and engagement
  • We are looking for a Staff Engineer for our First & Last Mile group, the team responsible for driving the core user lifecycle, including user Onboarding, Offboarding, Authentication, Engagement, and Subscriptions
  • We need a technical leader who understands how to bridge the gap between complex backend services, mobile client architecture, and business impact
  • You will not only have a strong technical background but also the ability to define technical roadmaps, elevate the engineering culture, and architect systems that enable rapid experimentation across our entire stack
  • Architect and design modular, scalable, and observable systems that support high-volume experimentation and user engagement flows spanning from the mobile client to backend services
  • Drive the Cross-Platform Strategic Vision and roadmap, ensuring our architecture supports high-volume experimentation, rapid iteration and future business needs
  • Promote Continuous Improvement by driving architectural standards, engineering best practices, and operational excellence across multiple teams
  • Provide guidance to and mentor Senior Engineers and other team members, fostering a culture of technical excellence and career growth
  • Identify root causes of systemic issues and architectural bottlenecks, determining short-term mitigations and long-term strategic resolutions
  • Work and intervene on the whole life cycle of the software, from high-level system design to deployment and post-release monitoring
  • Partner closely with Product Managers and Data Scientists to design technical solutions that unlock new growth opportunities and optimise user funnels

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Posted: June 4th, 2026