Monzo - Senior Staff Backend Engineer

• 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. • shape the technical and product direction of a collective • Be hands on in both coding and architecture, leading from the front. • hands on • 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. • 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. • Mobilise teams across your collective around high-impact problems • 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. • 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. • 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. • develop senior engineers and future leaders • What you’ll be using/ What you’ll be working on: • We rely heavily on the following tools and technologies: • Go to write our application code (there’s an excellent interactive Go tutorial here) • Cassandra for most persistent data storage • Cassandra • Kafka for our asynchronous message queue • Kafka • Kubernetes and Docker to schedule and run our services • Kubernetes • Docker • AWS for most of our production infrastructure and GCP for most of our data infrastructure. • React for internal Web dashboards • React • Feast for storing our features along a variety of tools to train and deploy models. • Feast • 🤩We’d love to hear from you if… • You have a track record of leading complex, high-impact systems and driving technical direction across multiple teams • 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 • strong technical judgment with product and business awareness • You’ve worked on scalable backend, distributed or data-intensive systems • scalable backend, distributed or data-intensive systems • You’re comfortable operating in ambiguous problem spaces, helping teams define direction and execute • ambiguous problem spaces • You influence and align senior stakeholders across engineering, product and beyond • senior stakeholders across engineering, product and beyond • You care about outcomes and impact, using data to guide decisions • outcomes and impact • You enjoy mentoring and raising the bar for other engineers • mentoring and raising the bar for other engineers • How we work 💻 • Locations & Flexible Working: • Our main tech hub is in London, but our engineers live everywhere in the UK— from Brighton to the Western Isles. • We value meeting in person but we don't have a mandated requirement on office attendance, even if you're nearby. We believe you'll do your best work if you are where you want to be. If you live outside of London and we ask you to come into the office, Monzo will support you with the costs. ✨ • Our offices are naturally social, especially Tuesdays, Wednesdays and Thursdays, which happen to line up with our twice-weekly Monzo lunches & treat Thursdays 🍽️. Teams also schedule time together often for work and play – in or around the office, or online. • Set up a work schedule that delivers impact and fits your life: • At Monzo, we value connections, flexibility, and wellbeing. We keep our meetings during core hours to stay connected and believe in maintaining work/life balance. • You’ll be empowered to manage your work in a way that suits you and your team, giving you the freedom for children drop-offs and pick-ups, walking your dog or adventurous cat, avoiding peak commuting times or gym slots, appointments, or supporting your family in an emergency. 🕒✨ • If you prefer to work part-time, we'll make this happen whenever we can - whether this is to help you meet other commitments or strike a great work-life balance. • Work the way that works for you with Monzo! 💼