Senior Staff Engineer - Platform in London
Senior Staff Engineer - Platform

Senior Staff Engineer - Platform in London

London Full-Time 135000 - 184000 ÂŁ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead technical projects and enhance Monzo's platform resilience with innovative solutions.
  • Company: Join Monzo Bank, a forward-thinking tech company in the finance sector.
  • Benefits: Enjoy a competitive salary, share options, flexible hours, and a ÂŁ1,000 learning budget.
  • Why this job: Make a real impact on global systems while working with cutting-edge technologies.
  • Qualifications: Strong software engineering skills and experience with cloud systems like AWS and GCP.
  • Other info: Be part of an inclusive culture that values diversity and supports career growth.

The predicted salary is between 135000 - 184000 ÂŁ per year.

We are looking for a Senior Staff Engineer (L70) to join our Platform collective. This is a technical leadership role with company‐wide influence, working closely with cross‐functional teams to improve Monzo's platform resilience and enable our engineering community to build reliable, performant systems.

Senior Staff Engineer Responsibilities

  • Be hands‐on and deeply technical with code and infrastructure, solving complex technical challenges.
  • Partner with the Engineering Director for Platform and other ICs to provide technical leadership around resilience across Monzo.
  • Build a deep understanding of the platform and strengthen the reliability surface between teams by enhancing tools, patterns and guardrails.
  • Promote and maintain a culture where every engineer feels supported to design, build and operate reliable systems at global scale.
  • Understand cross‐team work streams, regularly providing technical advice and challenging peers.
  • Lead architectural discussions for the most complex systems, arriving at robust, optimal solutions given context.
  • Champion high standards by celebrating success and providing constructive feedback.
  • Foster a culture of quality, championing measures to test work and making quality tooling easy.
  • Pro‐actively mentor, sponsor and up‐level engineers.

What We're Looking For

  • Solid software engineering foundations – robust backend services written in strongly typed languages.
  • Hands‐on experience with AWS, GCP and Kubernetes; deep experience designing and maintaining global, resilient cloud systems.
  • Infrastructure as Code expertise (e.g., Terraform) and a mindset of solving problems through automation.
  • System curiosity – a drive to investigate complex issues and understand how distributed applications fail and scale.
  • Platform mindset – enthusiasm for building a platform that enables success for everyone at Monzo, focusing on reliability, performance and developer experience.
  • Comfort with ambiguity in a fast‐paced, evolving environment.

Tools & Technologies

  • Go for application code
  • Cassandra for persistent data storage
  • Kafka for asynchronous messaging
  • Kubernetes & Docker for service orchestration
  • AWS (production) and GCP (data infrastructure)
  • React for internal web dashboards
  • Feast for feature‐flag and model deployment orchestration

Benefits

  • Competitive salary, share options and a comprehensive benefits package.
  • Relocation support to the UK and visa sponsorship available.
  • Flexible working hours and support for remote work with provided MacBooks.
  • ÂŁ1,000 annual learning budget for books, training courses and conferences.
  • Additional benefits available – see our full list of benefits.

Interview Process

  • Recruiter Call
  • Initial Call
  • System Design Interview
  • Take‐home Task or Pair‐Coding Exercise
  • Final Interview – behavioural and leadership components

The process typically takes 3–4 weeks. We'll be flexible to accommodate your schedule.

Equal Opportunities

Monzo is an equal‐opportunity employer. All applicants will be considered for employment without consideration of age, ethnicity, religion, sex, sexual orientation, gender identity, family or parental status, national origin, veteran, neurodiversity or disability status. We welcome people with preferred names and do not require full or birth names at the application stage. Monzo embraces diversity by fostering an inclusive environment for all people to do the best work of their lives.

EEO Statement

We're an equal opportunity employer. All applicants will be considered for employment without attention to age, ethnicity, religion, sex, sexual orientation, gender identity, family or parental status, national origin, or veteran, neurodiversity or disability status.

Senior Staff Engineer - Platform in London employer: Monzo Bank

Monzo Bank is an exceptional employer that champions a culture of innovation and inclusivity, making it an ideal place for Senior Staff Engineers to thrive. With competitive salaries, share options, and a generous annual learning budget, employees are empowered to grow their skills while enjoying flexible working arrangements in the vibrant city of London or remotely. The collaborative environment fosters technical leadership and mentorship, ensuring that every engineer can contribute to building resilient systems that support Monzo's mission.
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Contact Detail:

Monzo Bank Recruiting Team

StudySmarter Expert Advice đŸ€«

We think this is how you could land Senior Staff Engineer - Platform in London

✹Tip Number 1

Network like a pro! Reach out to current or former employees at Monzo on LinkedIn. A friendly chat can give you insider info and maybe even a referral, which can really boost your chances.

✹Tip Number 2

Prepare for those technical interviews by brushing up on your coding skills and system design knowledge. Use platforms like StudySmarter to practice and get comfortable with the types of questions you might face.

✹Tip Number 3

Show off your passion for platform engineering! During interviews, share examples of how you've tackled complex challenges in the past and how you’ve contributed to building resilient systems.

✹Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining the Monzo team.

We think you need these skills to ace Senior Staff Engineer - Platform in London

Technical Leadership
Software Engineering
Backend Development
AWS
GCP
Kubernetes
Infrastructure as Code
Terraform
Problem Solving
Distributed Systems
Reliability Engineering
Performance Optimisation
Go
Cassandra
Kafka

Some tips for your application đŸ«Ą

Show Your Technical Skills: Make sure to highlight your hands-on experience with coding and infrastructure in your application. We want to see how you've tackled complex technical challenges in the past, so don’t hold back on those details!

Tailor Your Application: Take a moment to customise your application for the Senior Staff Engineer role. Mention specific experiences that align with our platform mindset and your enthusiasm for building reliable systems. It’ll make you stand out!

Be Clear and Concise: When writing your application, clarity is key! Use straightforward language to explain your experiences and achievements. We appreciate a well-structured application that gets straight to the point.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it’s super easy to do!

How to prepare for a job interview at Monzo Bank

✹Know Your Tech Inside Out

As a Senior Staff Engineer, you’ll need to demonstrate your deep technical knowledge. Brush up on your experience with AWS, GCP, Kubernetes, and Infrastructure as Code. Be ready to discuss specific projects where you’ve tackled complex challenges and how you ensured system resilience.

✹Showcase Your Leadership Skills

This role involves influencing cross-functional teams, so be prepared to share examples of how you've led architectural discussions or mentored other engineers. Highlight your ability to foster a culture of quality and collaboration, and how you’ve celebrated successes while providing constructive feedback.

✹Understand Monzo's Platform Mindset

Familiarise yourself with Monzo’s approach to building reliable and performant systems. Think about how you can contribute to enhancing tools and patterns that support the engineering community. Be ready to discuss your vision for a platform that enables success for everyone at Monzo.

✹Prepare for Behavioural Questions

The final interview will include behavioural and leadership components, so think about your past experiences. Prepare stories that showcase your problem-solving skills, adaptability in fast-paced environments, and how you’ve handled ambiguity. Use the STAR method (Situation, Task, Action, Result) to structure your responses.

Senior Staff Engineer - Platform in London
Monzo Bank
Location: London

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