Backend Engineer II Cardiff, London or Remote (UK)
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Backend Engineer II Cardiff, London or Remote (UK)

Backend Engineer II Cardiff, London or Remote (UK)

London Full-Time 36000 - 60000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Join a squad to build and support Monzo's innovative banking platform.
  • Company: Monzo is revolutionising banking with a focus on simplicity and customer empowerment.
  • Benefits: Enjoy flexible working hours, a £1,000 learning budget, and visa sponsorship.
  • Why this job: Make a real impact on customers' lives while collaborating with diverse teams.
  • Qualifications: Strong backend experience; no formal qualifications required—just a passion for learning.
  • Other info: Open to applicants from all backgrounds; diversity and inclusion are key values.

The predicted salary is between 36000 - 60000 £ per year.

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 400 engineers across Monzo who design and build our in-house banking platform. We have big ambitions for the future, and technology plays a big role in creating a bank our customers want, so engineers at Monzo collaborate across disciplines to solve interesting challenges throughout the company. These range from the products our customers use every day to underlying infrastructure, security, payments and finance, customer operations, financial crime, and data, to name just a few areas. As a bank, there is scope for impact across a huge number of opportunities. This role is all about collaborating with your team to make a difference to your customers.

As a backend engineer you’ll work in a squad alongside other disciplines like product managers, marketers, user researchers, designers, mobile engineers, web engineers, data analysts, business analysts, writers and more! Together you’ll build and support a particular part of Monzo. Our squads belong to our wider collectives (a word we use to describe self-governing business units of ~100 people). They are; Core Banking, Business Banking, Wealth, Borrowing, Growth, Payments, Platform, Fincrime, Security & Expansion. They’re all looking for additional Backend Engineers right now, we do a standard interview process across all our collectives and at the end we will find the best match for you based on your skills, experience, preferences and aligning with the business need!

You should apply if:

  • you have strong experience working on the backend of a technology product
  • you want to be involved in building a product that you (and the people you know) use every day
  • you have a product mindset: you care about customer outcomes and you want to make data-informed decisions
  • you’re comfortable working in a team that deals with ambiguity
  • you’re interested in distributed systems and writing resilient software
  • you have some experience with strongly-typed languages (Go, Java, C, Scala etc.)
  • you think you’d enjoy the kind of work we’re doing

We hire very technically agnostic so whilst we use the below technologies we do not expect prior knowledge, you will be fully supported in our organised onboarding to get up to speed in the below:

  • Go to write our application code
  • AWS for most of our production infrastructure and GCP for most of our data infrastructure
  • React for our public web apps and internal tools

The Interview Process:

Our interview process involves three main stages:

  • Initial Call
  • Take home task or pair coding exercise
  • Final interview: including a system design and a behavioural interview

Our average process takes around 4 weeks but we will always work around your availability.

What’s in it for you:

  • We can help you relocate to the UK
  • We can sponsor visas.
  • 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, at times that suit you and your team.
  • Learning budget of £1,000 a year for books, training courses and conferences.

We’re usually always hiring for Backend Engineers, so there’s no closing date for this job.

Diversity and inclusion are a priority for us and we’re making sure we have lots of support for all of our people to grow at Monzo. At Monzo, we’re embracing diversity by fostering an inclusive environment for all people to do the best work of their lives with us. This is integral to our mission of making money work for everyone.

Backend Engineer II Cardiff, London or Remote (UK) employer: Monzo

At Monzo, we pride ourselves on being an exceptional employer, offering a vibrant work culture that champions collaboration and innovation. With flexible working arrangements, a generous learning budget, and a commitment to diversity and inclusion, we empower our employees to grow and thrive in their careers. Whether based in Cardiff, London, or working remotely, you'll be part of a mission-driven team dedicated to transforming banking for everyone, making your contributions impactful and rewarding.
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Contact Detail:

Monzo Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Backend Engineer II Cardiff, London or Remote (UK)

✨Tip Number 1

Familiarise yourself with the technologies mentioned in the job description, especially Go and AWS. Even if you don't have prior experience, showing a willingness to learn these technologies can set you apart during the interview process.

✨Tip Number 2

Highlight your collaborative skills. Since you'll be working closely with product managers, designers, and other engineers, emphasising your ability to work in a team and handle ambiguity will resonate well with the interviewers.

✨Tip Number 3

Prepare for the system design and behavioural interview stages by reviewing common backend engineering challenges and solutions. Practising how to articulate your thought process can help you stand out as a candidate who thinks critically about problem-solving.

✨Tip Number 4

Engage with Monzo's community on social media or forums. Understanding their culture and values can help you tailor your responses during interviews, showing that you're genuinely interested in being part of their mission to make money work for everyone.

We think you need these skills to ace Backend Engineer II Cardiff, London or Remote (UK)

Strong experience in backend development
Proficiency in strongly-typed programming languages (e.g., Go, Java, C, Scala)
Understanding of distributed systems
Experience with cloud platforms (AWS, GCP)
Ability to write resilient software
Product mindset with a focus on customer outcomes
Data-informed decision-making skills
Collaboration and teamwork skills
Adaptability to work in ambiguous environments
Familiarity with Agile methodologies
Problem-solving skills
Effective communication skills

Some tips for your application 🫡

Understand the Role: Before applying, make sure you fully understand the responsibilities and requirements of the Backend Engineer II position. Familiarise yourself with the technologies mentioned, such as Go, AWS, and distributed systems, to tailor your application accordingly.

Craft a Tailored CV: Highlight your relevant experience in backend development and any projects that demonstrate your product mindset. Use specific examples to showcase how you've contributed to customer outcomes and solved problems in previous roles.

Answer Thoughtfully: When responding to questions like 'What attracted you to Monzo?' and 'What's the most interesting project you've worked on recently?', be genuine and specific. Share insights into your motivations and what you learned from your experiences to stand out.

Show Your Passion for Learning: Since Monzo values a willingness to learn, emphasise your enthusiasm for new technologies and methodologies. Mention any self-directed learning or courses you've undertaken that relate to backend engineering or the technologies used at Monzo.

How to prepare for a job interview at Monzo

✨Understand Monzo's Mission

Before your interview, take some time to understand Monzo's mission to make money work for everyone. Familiarise yourself with their products and services, especially the unique features like the hot coral cards and get-paid-early feature. This will help you align your answers with their goals during the interview.

✨Showcase Your Product Mindset

Monzo values a product mindset, so be prepared to discuss how you've previously focused on customer outcomes in your work. Share examples of how you've made data-informed decisions and how you approach problem-solving with the end-user in mind.

✨Demonstrate Collaboration Skills

As a backend engineer, you'll be working closely with various disciplines. Highlight your experience in collaborative environments and provide examples of successful teamwork. Discuss how you handle ambiguity and adapt to different roles within a team.

✨Prepare for Technical Challenges

Expect technical questions related to backend development and distributed systems. Brush up on your knowledge of strongly-typed languages like Go, Java, or Scala. Be ready to discuss your coding experiences and any relevant projects that showcase your technical skills.

Backend Engineer II Cardiff, London or Remote (UK)
Monzo
Apply now
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  • Backend Engineer II Cardiff, London or Remote (UK)

    London
    Full-Time
    36000 - 60000 £ / year (est.)
    Apply now

    Application deadline: 2027-04-08

  • M

    Monzo

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