Application Security Engineer
Quick Summary
About Lendable Lendable is on a mission to build the world's best technology to help people get credit and save money. We're building one of the world’s leading fintech companies and are off to a strong start: One of the UK’s newest unicorns with a team of just over 700 people Among the…
Lendable is on a mission to build the world's best technology to help people get credit and save money. We're building one of the world’s leading fintech companies and are off to a strong start:
One of the UK’s newest unicorns with a team of just over 700 people
Among the fastest-growing tech companies in the UK
Profitable since 2017
Backed by top investors including Balderton Capital and Goldman Sachs
Take ownership across a broad remit. You are trusted to make decisions that drive a material impact on the direction and success of Lendable from day 1
Work in small teams of exceptional people, who are relentlessly resourceful to solve problems and find smarter solutions than the status quo
Build the best technology in-house, using new data sources, machine learning and AI to make machines do the heavy lifting
About the Role
~1 min readAs our Cyber Security Engineer, you will be the bridge between Security and Engineering. You aren't here to block deployments; you’re here to ensure our code is resilient by design. You will empower our developers to ship fast without breaking the trust of our customers or regulators.
Backend
Kotlin 1.7.20
AWS
GraphQL (it would be nice if you were familiar with this but it’s not a deal breaker)
Postgres
RabbitMQ
Docker
Kubernetes
Frontend
React & React Native, TypeScript, MobX, Redux, Stylus and SASS
Other
We build our Kotlin projects using Gradle and GitHub Actions, deploying to production as soon as we finish a feature
We use JUnit Jupiter, Kotest and TestContainers for automated testing
Responsibilities
~1 min read- →
Secure the Pipeline: Integrate and automate SAST, DAST, and SCA tooling directly into our CI/CD pipelines to catch vulnerabilities before they reach production.
- →
Harden the Product: Act as a Subject Matter Expert (SME) assisting engineers with the remediation of security vulnerabilities and bugs.
- →
Safeguard AI: Design and implement security guardrails for AI-assisted development and LLM integrations, ensuring data privacy and preventing prompt injection or model leakage.
- →
Threat Modelling: Partner with Product and Engineering teams to conduct threat modelling sessions for new features before they are built.
- →
Security Architecture: Act as a consultant for infrastructure and application design, ensuring our AWS/GCP Kubernetes environments remain hardened.
- →
Security Culture: Cultivate a Secure Development guild to level up our developers' secure coding skills.
Pragmatism: You understand the difference between partnering with Engineering and security being a blocker of progress.
Communication: You can translate a complex vulnerability into a business risk for a Product Manager and a technical fix for an Engineer.
AppSec Subject Matter Expertise: You have a strong understanding of critical security risks in applications, are able to identify them in code, and provide recommendations of how to remediate.
Cloud Native: Strong experience securing AWS/GCP environments and containerised workloads.
AI ready: You understand the unique risks of AI and have experience securing AI-driven workflows.
Intro call with Talent Team
Technical Interview
Final rounds:
Interview with our Head of Infosec
Culture Interview with our VP of Technology
Winning team: the opportunity to scale up one of the world’s most successful fintech companies
Flexible working: flexible approach tailored to each role. Hybrid roles require three days in-office weekly; fully remote roles include regular opportunities for in-person connection through socials and off-sites
Socials & connection: opportunities and events to come together, socialise, and get to know each other beyond the office walls
Health coverage: support for your physical and mental wellbeing, including private health cover
Retirement & savings: long-term financial wellbeing through retirement savings plans
Employee referral programme: earn a competitive bonus when you refer successful new team members
Office meals & snacks: enjoy a fully stocked kitchen, plus complimentary lunches prepared by in-house chefs on in-office days at select locations
Sustainable commuting: cycle-to-work and electric vehicle salary sacrifice schemes available in select locations
Please note: The availability and details of specific benefits vary by location and role. For more information, please speak to your Talent Partner.
Check out our blog!
Location & Eligibility
Listing Details
- Posted
- April 7, 2026
- First seen
- May 7, 2026
- Last seen
- May 7, 2026
Posting Health
- Days active
- 0
- Repost count
- 0
- Trust Level
- 16%
- Scored at
- May 7, 2026
Signal breakdown
Please let lendable know you found this job on Jobera.
4 other jobs at lendable
View all →Explore open roles at lendable.
Browse Similar Jobs
Stay ahead of the market
Get the latest job openings, salary trends, and hiring insights delivered to your inbox every week.
No spam. Unsubscribe at any time.