Monzo - Principal Backend Engineer

• A Principal Engineer at Monzo is a hands on engineering leadership (IC) position. As a Principal Engineer you’ll: • Partner with and guide Engineering and Product Leaders to shape the technical and product direction of Monzo, providing company-shaping leadership across collectives (100+ engineers) and driving alignment with company-wide priorities, owning problems that materially impact Monzo’s trajectory over the next 1-5 years. • shape the technical and product direction of Monzo • Remain hands-on in both coding and architecture where it adds the most leverage, especially in complex, high-risk or novel areas. • coding and architecture • Actively identifying high-leverage opportunities for Monzo and setting the direction of Engineering effort towards the most impactful outcomes. • Mobilise teams across Monzo around high-impact problems, creating clarity, alignment and momentum, injecting urgency, or slowing things down to ensure safety and long-term sustainability. • Mobilise teams across Monzo around high-impact problems • Lead and influence architectural direction for the most complex systems, driving consistency and reuse across domains, aligning local decisions with the broader system strategy. • aligning local decisions with the broader system strategy • Set and uphold a high bar for technical excellence across Monzo, identifying and driving improvements in quality, reliability and scalability, and fostering a culture where engineers hold each other to that standard. • identifying and driving • 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, domains or business areas • leading complex, high-impact systems and driving technical direction across multiple teams, domains or business areas • You think in multi-year horizons to look around corners and build for the future, identifying opportunities before they present themselves • multi-year horizons • 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 large scale backend, distributed or data-intensive systems • large scale 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 the most senior stakeholders across engineering, product and beyond • the most • senior stakeholders • You care about outcomes and impact, using data to guide decisions and to iterate • outcomes and impact • You enjoy mentoring and raising the bar for other engineers • mentoring and raising the bar for other engineers