Backend Engineer III
Monzoreferrals has an opening for a Backend Engineer III in Cardiff, United Kingdom. The listing describes it as a full-time position.
DGJ summary of this job
Our own short read of this listing, built only from the facts it gives. The employer’s original text follows further down.
Monzoreferrals has an opening for a Backend Engineer III in Cardiff, United Kingdom. The listing describes it as a full-time position.
The advert mentions Java, React, Scala, Kafka, AWS, GCP, Kubernetes and Docker among the skills and tools for this role.
Pay stated in the listing: £85,000 - £110,000.
Benefits mentioned in the advert: learning budget and flexible hours.
Visa sponsorship is not mentioned. Applicants from outside United Kingdom should check the official work permit route before applying.
Dev Global Jobs found this job on Arbeitnow on Nov 14, 2026.
- Employer
- Monzoreferrals
- Location
- Cardiff, United Kingdom
- Job type
- Full-time
- Pay
- £85,000 - £110,000
- Found
- Nov 14, 2026 on Arbeitnow
- Employer text
- 886 words, about 4 min to read
- Apply only on the official page (arbeitnow.co.uk). Dev Global Jobs is not the employer and never asks for a fee.
- Mirror the skills the advert names (Java, React, Scala and Kafka) in your CV where you really have them; applicant tracking systems look for these words.
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DGJ Insight
Our own data about this role and place, from official statistics and our live job index.
This job's listed pay is 110% above the benchmark.
Source: OECD Average annual wages, 2025
UN living-cost index for United Kingdom (ICSC post adjustment 76.4), as of 1 Oct 2026.
Source: ICSC post adjustment classifications (icsc.un.org)
- Skilled Worker visa: Job offer from a licensed sponsor at the required skill and salary level; English requirement
- Health and Care Worker visa: Eligible health and social care roles with a licensed sponsor
- Global Talent visa: Endorsement as a leader or potential leader in a listed field
Official routes: UK Visas and Immigration (GOV.UK)
About the role
Full text from the employer, as published on Arbeitnow, arranged into sections. Nothing added or removed.
📍London or UK Remote | 💰 Engineer III
Compensation: £85,000 - £110,000 + Incentive Awards tied to your performance + Benefits | Technology
01About our Engineering Teams
We have around 650 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 everyday 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.
02How we work 💻
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.
03Set 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! 💼
04You 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're on the look out for L40 Engineers at the moment, you can read more in our Engineering Progression Framework you will be interviewed across the whole framework, so if you're not sure what level you're aiming for chat to your recruiter!
Not ticking every box? That’s totally okay! Studies show that women and people of colour might hesitate to apply unless they meet every single requirement. At Monzo, we’re dedicated to creating a diverse and welcoming team. If you’re passionate about this role and keen to learn and grow with us, we encourage you to apply- even if you don’t have everything thats listed just yet. Drop us your application, we’d love to hear from you!
05What you’ll be working on
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 (there’s an excellent interactive Go tutorial here)
- Cassandra for most persistent data storage
- Kafka for our asynchronous message queue
- Kubernetes and Docker to schedule and run our services
- Envoy Proxy for RPC
- AWS for most of our production infrastructure and GCP for most of our data infrastructure
- React for our public web apps and internal tools
- We also have physical datacenters with actual cables to connect to various third parties
06The 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.
One of our engineers has written a detailed blog on their experience through this process, for extra details, hints and tips please see here.
07What’s in it for you
💰 £85,000 - £110,000 base salary + Incentive Awards tied to your performance
✈️ 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
➕And much more, see our full list of benefits here
We're usually always hiring for Backend Engineers, so there's no closing date for this job.
#LI-Remote
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