Security Engineer

2 weeks ago

London Area, United Kingdom Atarus Full time £80,000 - £120,000 per year


Senior Security Engineer


The Opportunity

Join a high-growth FinTech that's transforming how millions move and manage their money — where security isn't an afterthought, it
is
the product. They're searching for a hands-on Security Software Engineer who can engineer and automate security into the core of their platform.

In this role, you won't just surface vulnerabilities — you'll eliminate them at the root. You'll build patterns, tooling, and automation to empower developers to ship secure software at speed.


What You'll Lead & Deliver

  • Embed security into the SDLC from architecture through production
  • Automate guardrails and integrate security tooling into CI/CD
  • Drive threat modelling + security design reviews for new features
  • Create internal security tools, libraries, and developer workflows
  • Mentor engineers and uplift security engineering craft
  • Partner with product & platform teams to build secure-by-default systems


What You Bring

  • 5+ years in Security Engineering / Product / AppSec roles
  • Strong software engineering skills (Python, Go or TypeScript)
  • Experience securing web, mobile and API architectures at scale
  • Deep knowledge of SAST, DAST, IAST, SCA workflows & automation
  • Familiarity with OWASP Top 10, ASVS, MASVS & modern secure design
  • Understanding of OAuth2, OIDC, WebAuthn and identity auth patterns


Bonus Points For

  • Security engineering experience in FinTech, payments or regulated domains
  • Delivered secure coding training or scaled security champion programs
  • Knowledge of PCI-DSS, PSD2, SCA or financial compliance frameworks


What's In It For You

  • Huge impact: secure products used globally
  • Ownership in a modern, engineering-led culture
  • Budget for certifications, conferences & continuous learning
  • Clear progression to Staff / Principal Security Engineer

If you're passionate about building secure systems at scale, engineering elegant solutions, and championing DevSecOps — you'll thrive here. Ready to shape the future of secure financial technology? Let's talk.

  • Security Systems Engineer

    2 weeks ago

    London, Greater London, United Kingdom acre security Full time £45,000 - £65,000 per year

    Position: Security Systems EngineerLocation: London, UKMove Security Forward with AcreAre you passionate about transforming the future of security? Do you thrive in a collaborative, innovative environment where your contributions drive real impact? If so, Acre Security is the place for you. Join us in making the world a safer place — one innovation at a...

  • Security Engineer, Trust

    7 days ago

    London, Greater London, United Kingdom Harmonic Security Full time

    About  Harmonic SecurityHarmonic Security lets teams adopt AI tools safely by protecting sensitive data in real time with minimal effort. It gives enterprises full control and stops leaks so that their teams can innovate confidently.We are led by cybersecurity experts and backed by top investors including N47, Ten Eleven Ventures, and In-Q-Tel.We've gained...

  • Security Engineer, Trust

    7 days ago

    London, Greater London, United Kingdom Harmonic Security Full time

    About Harmonic SecurityHarmonic Security lets teams adopt AI tools safely by protecting sensitive data in real time with minimal effort. It gives enterprises full control and stops leaks so that their teams can innovate confidently.We are led by cybersecurity experts and backed by top investors including N47, Ten Eleven Ventures, and In-Q-Tel.We've gained...

  • Security Engineer, Trust

    7 days ago

    London, Greater London, United Kingdom Harmonic Security Full time

    About  Harmonic SecurityHarmonic Security lets teams adopt AI tools safely by protecting sensitive data in real time with minimal effort. It gives enterprises full control and stops leaks so that their teams can innovate confidently.We are led by cybersecurity experts and backed by top investors including N47, Ten Eleven Ventures, and In-Q-Tel.We've gained...

  • Security Engineer

    1 week ago

    London, Greater London, United Kingdom Complete Security Recruitment Full time £30,000 - £45,000 per year

    Fire & Security Role:Are you a skilledSecurity Small Works Engineerworking withCCTVandAccess Controlsystems?Paying up to£42kWhat can you expect as an employee:Works VehicleMobile Phone/PDAPPEToolsWork ClothesStandard Work Schedule: Monday to FridayThe ideal candidate would have:Must be experienced and able to demonstrate with suitable qualificationsPacom...

  • Security Engineer

    6 days ago

    London Area, United Kingdom Insight International (UK) Ltd Full time

    Role: Security EngineerLocation: London, UK(Hybrid)Hiring Type: Contract/Permanent RoleThe below is a desirable list as opposed to essential requirements. If a candidate has some of the below, they will still be considered.Proactively use security engineering tools to identify and mitigate network & security risks.2.Develop and implement security measures...

  • Security Engineer

    2 weeks ago

    London Area, United Kingdom Movement8 Full time £80,000 - £120,000 per year

    Security Engineer – GCP, Cloud Security, Pen Testing - Hybrid (London)You will be joining a company that build software solutions fast to solve real problems within the workplace. The team builds tools that help engineering and product teams respond to incidents, reduce downtime, and continuously improve.We're looking for a pragmatic, energetic customer...

  • Security Engineer

    1 week ago

    London Area, United Kingdom La Fosse Full time

    Security Engineer Salary : £70k - £90K (Depending on Experience) Travel : 2 days a week in Central London Office (3 days WFH) Financial Services company is seeking a skilled Security Engineer with strong experience in Azure environments and a track record of working within lean Cyber Security teams (approx. 5 people). This is a broad, hands-on role split...

  • Security Engineer

    2 weeks ago

    London Area, United Kingdom Stott and May Full time £65,000 - £85,000 per year

    Join a Global Leader in Travel & Event Management as a Security EngineerA renowned organisation in the travel and event management industry is seeking a highly skilled Security Engineer to enhance its cyber security initiatives. As part of a forward-thinking company at the forefront of shaping the future of business travel, this full-time, hands-on role...

  • Security Engineer

    5 days ago

    London Area, United Kingdom La Fosse Full time

    Security EngineerSalary: Up to £70kTravel: 2 days a week in Central London Office (3 days WFH)Financial Services company is seeking a skilled Security Engineer with strong experience in Azure environments and a track record of working within lean Cyber Security teams (approx. 5 people). This is a broad, hands-on role split between Security Operations and...