Full-Time

Backend Engineer III

Updated on 7/11/2025

Monzo

Monzo

1,001-5,000 employees

Digital banking platform for personal finance

Compensation Overview

£79k - £105k/yr

Mid, Senior

London, UK

Remote

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).

Category
Backend Engineering
Software Engineering
Required Skills
Java
Go
Scala
C/C++
Requirements
  • strong experience working on the backend of a technology product
  • a product mindset: you care about customer outcomes and you want to make data-informed decisions
  • comfortable working in a team that deals with ambiguity
  • interested in distributed systems and writing resilient software
  • some experience with strongly-typed languages (Go, Java, C, Scala etc.)
Responsibilities
  • collaborating with your team to make a difference to your customers
  • building and supporting a particular part of Monzo
  • working alongside product managers, marketers, user researchers, designers, mobile engineers, web engineers, data analysts, business analysts, writers and more
Desired Qualifications
  • enjoy learning new things
  • passionate about this role and keen to learn and grow with us

Monzo is a digital banking platform that focuses on providing a convenient way for individuals to manage their finances through a mobile app. The app allows users to track their income, spending, and savings easily. It includes features that help users save money, such as automatically setting aside a portion of their paycheck or rounding up payments to the nearest dollar. Monzo generates revenue from interest on customer deposits, fees for certain services, and interchange fees from card transactions. Additionally, it offers overdrafts and personal loans. The platform provides real-time balance updates and instant spending notifications, helping users stay informed about their finances and ensuring timely bill payments. With over 8 million customers, Monzo stands out in the digital banking space by catering to the demand for mobile-first banking solutions.

Company Size

1,001-5,000

Company Stage

Late Stage VC

Total Funding

$1.9B

Headquarters

London, United Kingdom

Founded

2015

Simplify Jobs

Simplify's Take

What believers are saying

  • Monzo's profits surged to £113.9 million, showing strong financial growth in 2025.
  • The bank's customer base grew by 2.4 million, reaching over 12 million users.
  • Monzo's expansion into Europe and the US could open new revenue streams.

What critics are saying

  • Rapid expansion may lead to operational challenges and service disruptions.
  • The '60-second' rule for payment reversals could increase fraud risk if not secured.
  • Monzo's potential IPO could expose it to increased scrutiny and investor pressure.

What makes Monzo unique

  • Monzo offers a digital-only banking experience with real-time spending updates and notifications.
  • The 'Pots' feature allows users to set aside money for specific purposes easily.
  • Monzo Plus provides premium features like custom card designs and travel insurance.

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Benefits

Competitive salary

Flexible working hours

Work from home

Stock options

32 days of paid vacation and public holidays per year

Health insurance

EAP

Learning budget

Home office stipend

Paid parental leave

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
FF News
Jun 17th, 2025
Experian Welcomes Monzo To Support Hub

Data and technology company, Experian, today announces that leading digital bank, Monzo, has become the newest addition to its Support Hub serviceAs part of Experian Support Hub, more than 12 million Monzo UK customers will now be able to share their access and support needs with them and multiple businesses in an accessible, simple and standardised way.Experian Support Hub is a free to use platform which allows users to share their access needs with multiple businesses in one go. This could include preferred method of communication such as letter, telephone, or email, or other requirements such as needing a longer appointment, or being accompanied by another adult to assist them.Other support needs included on the platform include ‘life events’ such as long-term health issues, bereavement, relationship breakdown or financial difficulties, so users can notify their service providers quickly about their circumstances, which can then put in place appropriate support.Previous research from Experian found that nearly three-quarters of disabled people (73%) delayed contacting an essential service provider because the process felt too daunting for them to undertake, leading to negative customer outcomes and poor service.Paul Lamont, Support Hub Director, Experian UK&I, said: “Experian technology is helping more and more businesses improve accessibility, and Monzo – as one of the leading digital banks in the UK – joining Experian Support Hub to assist vulnerable customers is a great milestone for the service.“It can be intimidating and overwhelming for customers to seek help, especially if they’ve encountered difficulties before. Experian Support Hub makes it easy and straightforward for people to get the support they deserve, reducing the barriers they can encounter in disclosing their needs.”Riffat Tufail, Vulnerability Access Inclusion & Bereavements Lead, Monzo, said: “Understanding how we can best support our customers is at the heart of our mission to make money work for everyone.“Alongside our existing tools like Share With Us, Experian Support Hub empowers customers to quickly and easily tell us about anything that affects their financial lives, like accessibility requirements or a change in personal circumstances.“This gives us an even deeper knowledge of our customers, and means we can support them in their preferred way across every area of Monzo from opening an account to managing their money everyday.”The Financial Conduct Authority (FCA) has found that an estimated 7.4 million people have unsuccessfully attempted to contact one or more of their service providers, with the most vulnerable in society most likely to struggle.More than three years in development, Support Hub launched in September 2023 with some of the UK’s largest companies, including HSBC UK, Nationwide Building Society, Tesco Bank, consumer credit provider NewDay, Co-operative Bank and Ovo.Crucially, it does not require consumers to disclose their disability – only the support they require from the organisations they use. Users have complete control over which organisations they share with, and what needs they share, and can remove their permission at any time.For businesses, Experian Support Hub helps them meet their obligations under the FCA’s Consumer Duty obligations, which instructs them to provide better communication methods and better identify vulnerable customers, so they can put in place appropriate support

FF News
Jun 2nd, 2025
Monzo Reports 8X Surge In Profits To £113.9 Million On The Back Of Record Growth

Monzo, the UK’s leading digital bank with more than 12 million customers, has today shared its financial results for the year ending March 31 2025. Monzo has again delivered record growth and sustainable profitability as it continues to see momentum accelerate. Recently crowned Best British Bank, the company attracted 2.4 million new customers in its last financial year and saw engagement and weekly active rates continue to increase further – with 67% of customer growth coming from word-of-mouth referrals. Revenues increased significantly across all areas – including lending, transactions and subscriptions – propelling Monzo’s adjusted profit before tax to £113.9m, up from £13.9m.Customer deposits grew 48% to £16.6bn, with the number of weekly active users increasing 28% as Monzo added a record number of new products and features to help customers manage more of their financial lives. Average Revenues per User grew 16% for business customers and 15% for personal customers, underscoring the deeper relationships Monzo is building with its customer base.The financial year saw Monzo scale and invest with discipline as it made further strides on its ambition to become the one app customers turn to to manage their entire financial lives. The company welcomed a new generation of customers through its hugely successful Under 16s product, which saw a 180,000-strong waitlist in its first week alone, and launched Monzo Pension

Tech.eu
Jun 2nd, 2025
Monzo Reveals One-Third Of Customers Use It As A Primary Bank, As Profits And Revenues Swell

Monzo today (Monday) revealed that a third of its customers were using it as a primary bank, as profits surged four-fold to £60.5m in the year ending March 2025.The UK challenger bank, famed for its coral-coloured cards, said it added 2.4m customers in the year and now had more than 12m customers in total. The bank, led by CEO TS Anil, said it was now the seventh-largest UK bank by customer numbers.In its results, Monzo did not divulge any details of its long-rumoured IPO.Revenues were up 48 per cent in the year to £1.2bn, the first time Monzo had topped the £1bn mark.Pre-tax profits were up four-fold from £15.4m in the 13 months to March end 2024, to £60.5m in the 12 months to March 2025.Monzo’s business customers grew by 49 per cent to hit 625,000, with Monzo Business now making up 12 per cent of total revenue.Monzo also revealed that 33 per cent of its customers were using Monzo as their primary bank.Challenger banks like Monzo, Revolut and Starling have long-faced questions about how many of their customers were using their respective banks as their main banks and getting their salaries paid into them.Monzo said revenues increased across all areas: lending, transactions and subscriptions.Customer deposits grew 48 per cent to £16.6bn, with the number of weekly active users increasing by 28 per cent. Subscription income grew 50 per cent to £75.2m.Average revenues per user grew 16 per cent for business customers and 15 per cent for retail customers.The challenger bank also highlighted that its new under-16s product garnered a 180,000-strong waitlist.Monzo also highlighted its expansion plans over the next 12 months across Europe and the US, saying it was building its Irish team at pace, which would be its springboard to its launch across the EU.Anil said: "Another year of raising the bar and driving scale, growth and profitability! 2.4 million customers chose Monzo, we launched more products than ever, increased customer engagement - and saw record growth for Monzo Business."By bringing the best of technology and banking together and remaining customer-obsessed, we’re seeing accelerating growth and momentum and unprecedented customer love - with Monzo recently named Best British Bank. And the best part? We’re still just getting started.”

Financial IT
May 23rd, 2025
Monzo Takes the Crown as Best British Bank at Smart Money People's British Bank Awards 2025

Monzo takes the crown as Best British Bank at Smart Money People's British Bank Awards 2025.

FF News
May 22nd, 2025
Monzo Sweeps 2025 British Bank Awards with Three Major Wins, Voted For by Customers

Monzo sweeps 2025 British Bank Awards with three major wins, voted for by customers.