Work at Atom bank
Everything you need to know about Atom bank to see if it is the right fit for you.
Overview
About Atom bank
Atom bank is the UK's first app-based bank, launched in April 2016. No branches, no queues, no unnecessary complexity, just straightforward savings, mortgages, and business lending through a beautifully simple app. Founded in 2014 by Anthony Thomson and Mark Mullen, Atom was the first digital-only challenger bank to be granted a full UK banking licence. Now based in Newcastle upon Tyne, the bank holds £5.3 billion in loan balances and is consistently the highest-rated bank, savings provider, and mortgage lender on Trustpilot.
Company Details
- Category
- Fintech
- Locations
- UK
- CEO
- Mark Mullen
- Website
- atombank.co.uk
- Social
Why Join
Our Take
Atom bank is one of the most compelling places to work in UK fintech right now, and not just because of the four-day working week. Atom became profitable for the first time in 2024 and has grown its loan book by 29% to £5.3 billion, while being consistently rated the UK's highest-rated bank by its customers on Trustpilot. The four-day work week is real and established: in November 2021, Atom became the largest company and only bank in the UK to introduce the policy for all employees, genuinely reducing contracted hours from 37.5 to 34 per week with no salary cut, and job applications rose 49% as a result. There is also genuinely no mandatory office attendance, with only around 10% of staff regularly coming in. What really stands out is that Atom has done all of this from Newcastle, building one of the UK's best-loved banks without ever opening a London office. Glassdoor reviewers consistently highlight the brilliant people, the no-blame culture, and the interesting and meaningful work. The main caveat to note is that some employees, particularly at more senior levels, have reported limited progression opportunities as the company matures beyond its early startup phase. But if you want to work somewhere that backs its values with action, a genuinely flexible, people-first bank that is growing sustainably and has a product its customers genuinely love, Atom is hard to beat.
What to Expect
Employees
Founded in
Headquarter
Mission
Company Mission
Change banking for good, for the better, for everyone.
Problem They Solve
Traditional banks are slow, expensive, and built around branches, not customers. They charge unnecessary fees, offer poor rates, and make simple tasks needlessly complicated. Atom was built to do the opposite: pass on savings from having no branches by offering better rates, deliver mortgages significantly faster than the high street average, and make every interaction as simple as possible.
Who their customers are
Atom serves personal customers seeking better savings rates and mortgages, as well as small and medium-sized businesses seeking secured lending. The bank operates exclusively through its app and serves over 270,000 customers, delivering a median residential mortgage offer in about 3 days, significantly faster than the market average.
Long-term vision
We are here to change banking for the good, for the better, and for everyone.
Team
What Employees Say
"Atom is a safe environment to work in with amazing people to learn from. If you want to be challenged and work in creative teams, this is the place for you! It's a bank that makes you feel part of something good and pushes you to develop."
Current Employee
Leadership
Mark Mullen has led Atom bank as CEO since its founding, bringing more than 30 years of experience in financial services. Before Atom, he served as CEO of First Direct, the telephone and internet bank widely regarded as one of the most customer-loved banks in the UK. The non-executive board is chaired by Lee Rochford. Atom was co-founded alongside Anthony Thomson, who stepped down as Chairman in 2018, but Mullen has remained committed to the company throughout and is deeply identified with its mission and culture.
Founder-led?
Yes, this company is still led by its founder(s).
Do I Feel Safe at Work?
Atom has built a culture that Glassdoor reviewers consistently describe as a no-blame environment. The company empowers people to try things, make mistakes, and learn without fear. Mullen himself has spoken publicly about treating employees as trusted professionals whose output matters more than when or where they work. The four-day work week and complete flexibility around office attendance are structural expressions of this trust, not perks, but the default. Atom is also a committed signatory of the Women in Finance Charter and publishes its gender pay gap report annually.
Work Reality
Onboarding
Atom expects new starters, particularly those early in their careers, to make an effort to come into the Newcastle office during their first weeks to meet colleagues, build relationships, and get up to speed more quickly. Beyond that initial period, where and when you work is largely your own decision.
What Employees Say
"You can put your name in the hat for almost anything, such as shadowing, project work, additional duties and it really helps you grow and develop new skills."
Current Employee
How Success is Measured
Output over hours. Atom does not track when or where you work, only that the work gets done. Given the four-day work week, there is a practical imperative to be focused and effective rather than performatively busy. Performance is reviewed regularly, and the bonus scheme rewards strong company performance.
Communication Style
Atom operates across messaging and video tools, as well as planned in-person days. With only around 10% of staff regularly visiting the office, most day-to-day collaboration happens remotely. The company plans and communicates in-person days well in advance, which avoids the ambiguity that tends to plague hybrid policies at other organisations.
Growth
Promotions
Atom is transparent that it is a relatively small bank, around 550 people, and some Glassdoor reviewers have noted that the ceiling for progression, particularly at the more senior end, can be limited as the company matures. That said, internal promotions do happen: Atom made nine senior technology promotions in a single round in 2025 as part of a wider investment in its engineering and AI teams. And with the loan book growing 29% year-on-year, new opportunities are emerging across the business.
L&D Support
Atom provides a £200 annual learning budget that can be spent on anything, not just work-related skills. There are also graduate and early-career programmes, and employees describe good access to learning from senior colleagues in a collaborative environment. Atom has also partnered with Durham University on research and diversity initiatives.
Internal Mobility
As a focused bank with a relatively compact team, internal mobility exists but is not a structural programme. With Atom having recently launched its first ISA and continuing to expand its AI infrastructure and business lending, there is increasing scope for people to shift their focus as the product suite grows.
Average Tenure
Atom's average employee tenure is 4.5 years, above the industry average for a fintech of its size, a strong signal of retention given the bank's relatively young age and the competitiveness of the UK tech hiring market.
Benefits
Work Flexibility
- Four-day working week: 34 hours across four days, with no reduction in salary
- No mandatory office attendance: work from anywhere
- Occasional planned in-person days at the Newcastle HQ (The Pattern Shop)
- Flexible start and finish times: core 9–5 available, but flexibility is offered
Compensation
- Competitive salary
- Annual profit share bonus tied to company performance
- Share option scheme
Health & Insurance
- Private medical insurance for you and close family members
- Health cash plan covering optical, dental, counselling, and other treatments
- 24/7 Employee Assistance Programme
Family Support
- 26 weeks full pay maternity and adoption leave, followed by 26 weeks half pay
- 6 weeks of full pay paternity leave
Professional Development
- £200 annual learning budget (spend it on anything, it doesn't have to relate to your role)
- Graduate scheme and early careers programme
- Research partnership with Durham University
Leave & Time Off
- Minimum 22.5 days holiday, increasing by half a day for every two years of service
- One paid volunteering day per year
Jobs at Atom bank
Explore 2 current remote opportunities.
Frequently asked questions
Have more questions? Get in touch with Frederic, Founder of RemoteCorgi.
- Is the four-day work week really for everyone?
- Yes. Since November 2021, all Atom bank employees have worked a four-day week, 34 hours across four days, with no reduction in pay. This applies to every role, including customer-facing teams, which require careful shift planning to maintain seven-day service. Atom was the largest company and the only bank in Britain to introduce this policy for all staff.
- Does Atom offer remote working?
- Atom has no fixed office attendance requirement. Around 10% of the team regularly comes in; the rest work wherever suits them. New starters are encouraged to spend time in the Newcastle office during their early weeks to build relationships, but after that, where you work is largely your own decision. Some roles, particularly in customer operations, require full-time office attendance, so it's worth checking for the specific role you're applying for.
- Where is Atom bank based?
- Atom spent its first decade in Durham. In autumn 2025, the bank moved into its new headquarters, The Pattern Shop, near the centre of Newcastle upon Tyne. The building dates from the 1800s and has been refitted as a modern, flexible workspace with a deliberate emphasis on social connection over traditional office layout. Atom also has some remote roles and does not require employees to commute to Newcastle regularly.
- What products does Atom bank offer?
- Atom offers personal savings accounts (fixed-rate and instant access), residential mortgages, and secured business lending for small and medium-sized enterprises. All products are managed through the Atom app. The bank launched its first Cash ISA in 2025 and has signalled that further savings products are planned for 2026.
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