Senior Offensive Security Engineer, Monzo
£76.5-90k
+ Incentive awards tied to your performance
More information about location
Digital-only bank platform and marketplace
Job no longer available
Digital-only bank platform and marketplace
1001+ employees
Job no longer available
£76.5-90k
+ Incentive awards tied to your performance
More information about location
1001+ employees
Company mission
To build a new kind of bank that makes money work for everyone.
Role
Who you are
- You have a strong attacker mindset and are naturally curious about how systems can be broken
- You’ve got hands on experience in offensive security across areas like web, mobile, cloud, or infrastructure
- You’re comfortable working across modern tech stacks (e.g. Kubernetes, AWS/GCP, microservices) or excited to learn
- You can take ownership of ambiguous problems and drive them through to impactful outcomes
- You enjoy collaborating with others and influencing teams to think more securely
- You’re experienced in security testing and/or have relevant certifications (e.g. OSCP, CREST)
- 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 that's listed just yet. Drop us your application, we’d love to hear from you!
What the job involves
- You'll be joining Monzo’s Offensive Security team, part of our wider Security collective. We're a team of curious, hands on security professionals who think like attackers to help keep Monzo and our customers safe. We work across everything from customer facing products and mobile apps to cloud infrastructure, internal systems, and emerging technologies like AI
- Our role is to find weaknesses before others do. Through security testing, red and purple teaming, and adversarial research, we uncover vulnerabilities, demonstrate real-world impact, and help teams build more secure systems
- We work closely with engineers and security partners across Monzo, bringing an attacker mindset into the room and helping shape security decisions through collaboration, curiosity, and practical expertise
- Leading offensive security projects from initial idea through to execution and reporting
- Simulating real world attacks to uncover vulnerabilities across our systems, infrastructure, and products
- Partnering with engineering and security teams to improve detection, response, and resilience
- Bringing an attacker mindset into conversations - asking “what if?” and challenging assumptions
- Producing proof-of-concept exploits to clearly demonstrate risk and drive meaningful fixes
- Mentoring others in the team and acting as a highly independent technical lead on complex engagements
Application process
- 30 min recruiter call
- 30 min call with the hiring manager
- 2 hours of technical and behavioural interviews
- This process should take around 3-4 weeks - your schedule is really important to us, so we promise to be as flexible as possible!
- We have some guidelines on using Artificial Intelligence (AI) to ace an application and interview at Monzo
- We’ll only close this role once we have enough applications for the next stage. Please submit your application as soon as possible to make sure you don’t miss out
Our take
Monzo is a challenger bank that fully operates online and offers a full range of current, savings, business accounts, and more. The speed of the challenger banks to provide a great experience has been impressive, and the number of competitors appearing has proven the consumer desire for innovation.
Monzo remains one of the popular online banks, with more than 6 million active users. The company faces competition from more traditional banks, such as Goldman Sachs and JP Morgan, which have launched their own digital banks. However, the new technologies that the company is built on enable it to expand quickly (with fewer issues) than the incumbent players' offerings.
With an increasing amount of people switching banks, the company's ever-expanding suite of banking and financial services (such as its buy-now-pay-later offering) has resulted in Monzo receiving the second-highest net switching gains among digital challenger banks (just behind Starling).
The company launched in the US market in early 2022, partnering with Sutton Bank to provide accounts there. After several years focused on narrowing its losses, Monzo hit profitability in the first two months of 2023. It is now moving forward with an IPO, targeting a £6-7 billion valuation
Kirsty
Company Specialist at Welcome to the Jungle
Insights
Company
Funding (last 2 of 18 rounds)
May 2024
$190m
LATE VC
Mar 2024
$453.8m
LATE VC
Total funding: $1.9bn
Company benefits
- Yearly Salary Review + Proactive pay increases to reflect growing responsibilities + Share options
- Flexible working hours
- Work From Home Opportunities + we'll pay for any equipment you need to do your job
- 24 days holiday a year, plus bank holidays
- Paid sick leave for both physical & mental health + Health insurance via AXA or Vitality + Additional health insurance through Medicash
- Employee Assistance Programme
- Learning budget of £1,000 a year
- Aviva Pension Scheme + 4% Employer Contribution
- Paid maternity, paternity, adoption or shared parental leave (after 13 weeks of employment)
- 52 weeks of primary caregiver leave (6 months at 100% pay, 13 weeks at Statutory Maternity Pay, 13 weeks unpaid)
- 3 months of secondary caregiver leave at 100% pay
- Unum Life Insurance
- Access to fertility and family-forming health benefits via Fertifa
- Abellio Season Travel Tickets + Cycle-to-Work Scheme
Company HQ
City of London, London, UK
Leadership
TS Anil
(Vice Chair)Previous ly CEO of the company. Also a Board Member at Accion. Previously Board Member at UK Finance, Global Head of Payments, Products & Platforms at Visa and was the Global Head of Retail Products at Standard Chartered Bank.
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