Senior Backend Engineer

🚀 We’re on a mission to make money work for everyone.

We’re waving goodbye to the complicated and confusing ways of traditional banking.

With our hot coral cards and get-paid-early feature, combined with financial education on social media and our award winning customer service, we have a long history of creating magical moments for our customers!

We’re not about selling products - we want to solve problems and change lives through Monzo ❤️

We have around 600 engineers out of roughly 5,000 people in total - and we have big ambitions. There are many interesting challenges ahead, and we're happy for people to move between teams or to specialise, whatever you prefer. As an engineer here you'd be able to work directly with anyone across the company, and we run regular knowledge-sharing sessions so you’ll learn heaps about everything from how banks work to effective communication.

A Senior Staff Engineer at Monzo is a hands on engineering leadership (IC) position. As a Senior Staff Engineer you’ll:

• Partner with Engineering Directors to shape the technical and product direction of a collective
  , providing leadership across multiple squads (30–70+ engineers) and ensuring alignment with company‑wide priorities.
• Be hands on in both coding and architecture, leading from the front.
• Partner closely with Product and Design leadership to define strategy, shape roadmaps, and make high‑quality trade‑offs that maximise business and customer impact across the collective
  .
• Mobilise teams across your collective around high‑impact problems
  , creating clarity, alignment and momentum, injecting urgency when needed, or slowing things down to ensure safety and long‑term sustainability.
• Lead and influence architectural direction for the most complex systems,
  ensuring cohesive, scalable designs across multiple teams and aligning local decisions with the broader system strategy
  .
• Set and uphold a high bar for technical excellence across the collective,
  driving improvements in quality, reliability and scalability, and fostering a culture where engineers hold each other to that standard
  .
• Proactively mentor, sponsor and develop senior engineers and future leaders
  , multiplying your impact by enabling others to operate at a higher level.

We rely heavily on the following tools and technologies:

• Go to write our application code (there’s an excellent interactive Go tutorial here
  )
• AWS for most of our production infrastructure and GCP for most of our data infrastructure.
• Feast for storing our features along a variety of tools to train and deploy models.

• You have a track record of leading complex, high‑impact systems and driving technical direction across multiple teams
• You combine strong technical judgment with product and business awareness
  , making pragmatic trade‑offs
• You’ve worked on scalable backend, distributed or data‑intensive systems
• You’re comfortable operating in ambiguous problem spaces
  , helping teams define direction and execute
• You influence and align senior stakeholders across engineering, product and beyond
• You care about outcomes and impact
  , using data to guide decisions
• You enjoy mentoring and raising the bar for other engineers

• ✈️ We’ll help you relocate to the UK.
• ✅ We can sponsor your visa.
• 📍This role can be based in our London office, but we're open to distributed working within the UK (with ad hoc meetings in London).
• ⏰We offer flexible working hours and trust you to work enough hours to do your job well, and at times that suit you and your team.
• 📚£1,000 learning budget each year to use on books, training courses and conferences.
• 🏡We will set you up to work from home; all employees are given Macbooks and for fully remote workers we will provide extra support for your work‑from‑home setup.

Our interview process involves four main stages after an informal recruiter call:

• Initial Call
• System Design Interview
• Take home task or pair coding exercise
• Final interview including a behavioural and a leadership interview

This process should take around 3‑4 weeks – your schedule is really…