19 of 19 Application Security Jobs in London

SENIOR APPLICATION SECURITY ENGINEER (OUTSIDE IR35)

Hiring Organisation
Secure Recruitment Ltd
Location
East London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £900 per day £800-900 per Day (Outside IR35)
Privilege Design Ability to operate effectively in Regulated Environments & Translate Controls into Engineering Solutions Ideally Experience would include: Delivered AI/Agent Platforms or AppSec Automation Solutions at Scale Familiarity with: Anthropic Claude/Claude Code MCP or similar Agent/Tool Orchestration Frameworks Experience with AI Security Tooling … Knowledge of Secure Development Frameworks (e.g. NIST SSDF, SABSA) Experience with AI Red-Teaming & Adversarial Testing Evidence of External Thought Leadership in AppSec or AI Security Why This Role is Exciting!! Build a Real Production System used at Scale by Engineers - not a Prototype or Slideware Work ...

Cyber Security Analyst -

Hiring Organisation
Salt
Location
London, United Kingdom
Employment Type
Temporary, Work From Home
Salary
£600 - £601 per day
Senior Cyber Security Analyst - Application Security/DevSecOps/Secure Design/SAST, DAST - London Contract | 12 Months | Hybrid 8 Days onsite per month - the rest is remote working Inside of IR35 must use umbrella £600 per day We are supporting a leading international organisation … search for a Senior Cyber Security Analyst to join a high-performing security engineering and assurance team. This role is ideal for a consultant with a strong background in Application Security, DevSecOps, Secure SDLC, Threat Modelling, and Cloud Security , who can work closely with engineering ...

Application Security Engineer

Hiring Organisation
Health Hero
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Application Security Engineer (London or Bristol) We are HealthHero, Europe’s largest digital clinic. Join us at a pivotal moment as we scale our digital healthcare platform across Europe — giving you the chance to shape security at the heart of a fast-growing, AI-driven business. … recruiting an exciting Application Security Engineer on an initial 12 month fixed term contract, with a view to becoming permanent – based in either our London or Bristol office two days per week. About the role You will own security across the software development lifecycle, embedding automated security ...

Senior Security Cloud Engineer

Hiring Organisation
Health Hero
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Senior Cloud Security Engineer (London or Bristol) We are HealthHero, Europe’s largest digital clinic. Join us at a pivotal moment as we scale our digital healthcare platform across Europe — giving you the chance to shape security at the heart of a fast-growing, AI-driven business. … recruiting an exciting Senior Cloud Security Engineer on an initial 12 month fixed term contract, with a view to becoming permanent – based in either our London or Bristol office two days per week. About the role This role will form a fundamental part of a growing PlatformSecurity function, where ...

Security Architect (API / Product Security)

Hiring Organisation
Pontoon
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£750 - £800 per day
Security Architect (API/Product Security) Retail Hybrid: 3 days onsite per week in London 6 months+ £750 - £800 per day In short: We require a strong, application-focused Security Architect with a keen background in development or at least the ability to assure a product … engineers on the product whilst also facing off to more senior stakeholders in the business. In full: You will be responsible for augmenting the Security Architecture team with speciality skills and help scale our security presence across the wider technology and infrastructure teams. Provide engineering and product teams ...

Cyber Security Operations Specialist

Hiring Organisation
Visa
Location
London, UK
Employment Type
Full-time
world. Join Visa and do work that matters - to you, to your community, and to the world. Progress starts with you. Job Description Information security is an integral part of Visa's corporate culture. It is essential to maintaining our position as an industry leader in electronic payments, which … Visa has made it a priority to create top-tier security operations and incident response teams to defend the company against evolving cyber threats. If you would like to join a company where security is truly valued, where you can work with like- minded peers who are passionate ...

Security Architect

Hiring Organisation
FBI &TMT
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£700 - £750 per day
client, a leader in the banking investment sector, is currently seeking an AI Security Engineer to join their team remotely. This is a contract role focused on developing and implementing robust information security strategies using cutting-edge AI technologies within the banking sector. Key Responsibilities: Utilise hands … technologies and platforms, such as AWS Bedrock, Azure OpenAI, and Microsoft 365, to support teams in adopting these capabilities securely. Provide guidance on model security, deployment patterns, integration architectures, observability, and evaluation techniques across various business use cases. Translate platform-specific risks, limitations, and best practices into actionable engineering ...

Cloud Security Platform Engineer (CrowdStrike)

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£70 - £85 per hour
Cloud Security Platform Engineer (CrowdStrike) | £70-£85p/hour (Inside IR35) | Fully remote (UK based) | 12 month contract Our client is looking for an experience Cloud Security Platform Engineer to help deliver and enhance cloud native security capabilities across multi-cloud environments. You must have strong experience … across cloud security tooling, posture management, workload protection and platform enablemen specifically within enterprise environments. What You'll Be Doing: Supporting the deployment and optimisation of cloud security platforms across enterprise cloud estates Helping define best practices around cloud security operations, alerting, dashboards, compliance, and remediation workflows ...

Software Development Manager

Hiring Organisation
Noir
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £110,000 per annum
Software Development Manager - Enterprise Software - London/Hybrid (Key skills: Software Development Manager, Agile, Software Engineering Leadership, Product Delivery, Application Security, Identity & Access Management, .NET 8, SQL Server, Microservices, Cloud (AWS/Azure), DevOps, CI/CD, Jenkins, Ansible, Stakeholder Engagement, Resilience Engineering, Full Stack Development … cross-functional collaboration. You will manage agile teams working on a mix of internal and client-facing applications, with a strong focus on application security, identity and access management, and platform resiliency. Working closely with architecture, design, infrastructure, and product teams, you will ensure the successful delivery ...

Offensive Security Engineer (Mobile)

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
Offensive Security (Mobile) | £65-75k DOE | Hybrid Working (UK) We're working with an innovative UK technology company operating at the forefront of digital identity and biometric security. As their security function continues to grow, they're looking to appoint an experienced Offensive Security Engineer with … strong focus on mobile application security. The Opportunity: You'll take ownership of sophisticated red team and mobile security assessments across iOS and Android environments, simulating real-world attack scenarios to identify vulnerabilities before they can be exploited. The role combines hands-on offensive testing, exploit development, research ...

AWS Cloud Technical Lead

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £120,000 per annum
across the organisation. Key Responsibilities Lead the design and implementation of cloud solutions on AWS as the platform is onboarded, ensuring alignment with their security, compliance, and architectural standards. Collaborate closely with application, security, and infrastructure teams to deliver secure, scalable, resilient cloud solutions for business applications … services. Drive improvements in platform stability, security, automation, and cost efficiency, working alongside other cloud team members to establish best practices and reusable patterns. Produce clear and robust architectural designs based on business and technical requirements and contribute to the development of AWS governance frameworks and landing zone patterns. ...

Senior Frontend Developer

Hiring Organisation
Rullion Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
code reviews to ensure high development standards Troubleshoot and resolve issues across development and production environments Contribute to architectural decisions and collaborate on overall application design Ensure application security and scalability through best development practices Keep up to date with emerging technologies and recommend new tools ...

AWS Technical Lead

Hiring Organisation
INTEC SELECT LIMITED
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £130,000 per annum
basis. Role & Responsibilities: Lead the design and implementation of cloud solutions on AWS as the platform is onboarded, ensuring alignment with the organisation’s security, compliance, and architectural standards. Provide operational (BAU) support for AWS services and contribute to Azure support where required. Collaborate closely with application, security, and infrastructure teams to deliver secure, scalable, resilient cloud solutions for business applications and services. Drive improvements in platform stability, security, automation, and cost efficiency, working alongside other cloud team members to establish best practices and reusable patterns. Produce clear and robust architectural designs based on business ...

Network Detection and Response (NDR) Test Manager

Hiring Organisation
ARM
Location
London, United Kingdom
Employment Type
Contract
testing activities for critical programme initiatives comprising of Network Detection and Response (NDR) implementation and an end user project focused on Device Trust and Application Security within Citrix products along with other infrastructure/cyber initiatives. The successful candidate will be responsible for the testing lifecycle, working closely … quality of testing is of he highest quality. Required Skills & Experience Proven experience as a Test Manager on IT programmes, ideally within network security and end user computing environments. Strong knowledge of Network Detection & Response solutions and Device Trust concepts would be advantageous. Demonstrable experience testing Citrix environments, with ...

Network Detection Test Manager

Hiring Organisation
ARM
Location
London, United Kingdom
Employment Type
Contract
testing activities for critical programme initiatives comprising of Network Detection and Response (NDR) implementation and an end user project focused on Device Trust and Application Security within Citrix products along with other infrastructure/cyber initiatives. The successful candidate will be responsible for the testing lifecycle, working closely … quality of testing is of he highest quality. Required Skills & Experience Proven experience as a Test Manager on IT programmes, ideally within network security and end user computing environments. Strong knowledge of Network Detection & Response solutions and Device Trust concepts would be advantageous. Demonstrable experience testing Citrix environments, with ...

IT Manager - Law Firm

Hiring Organisation
Clear IT Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£70000 - £100000/annum
environment is approximately 95% Mac-based, and the successful candidate must have extensive experience managing macOS environments using Jamf Pro and related tools. Security, performance, and reliability are critical, particularly within a regulated professional services setting handling confidential client data. Key Responsibilities • Full ownership and management of IT infrastructure … access points • Overseeing VOIP/SIP systems (3CX), virtual environments (Hyper-V, VMware), and storage (Synology/QNAP) • Managing Active Directory, VPNs, server/application security, and print services • Monitoring SLAs and ticketing systems, ensuring service standards are maintained • Preparing and presenting annual IT budgets and reporting regularly ...

IT Manager - Mac Expert

Hiring Organisation
Clear IT Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£70000 - £100000/annum
environment is approximately 95% Mac-based, and the successful candidate must have extensive experience managing macOS environments using Jamf Pro and related tools. Security, performance, and reliability are critical, particularly within a regulated professional services setting handling confidential client data. Key Responsibilities • Full ownership and management of IT infrastructure … access points • Overseeing VOIP/SIP systems (3CX), virtual environments (Hyper-V, VMware), and storage (Synology/QNAP) • Managing Active Directory, VPNs, server/application security, and print services • Monitoring SLAs and ticketing systems, ensuring service standards are maintained • Preparing and presenting annual IT budgets and reporting regularly ...

Principal Technical Lead

Hiring Organisation
RSSB
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
date of this role is 24th May 2026. When applying, please keep your CV to a maximum of three pages. As part of the application, well also ask you to answer one short application question (up to 200 words). Responsibilities Own the technical delivery of the platform … ensuring the team consistently ships high-quality, production-ready increments. Ensure engineering standards are followed across the team: coding conventions, API design, security practices, and code review processes. Lead estimation, sprint planning, and decomposition of technical work; proactively identify and manage technical risk, dependencies, and blockers. Collaborate with ...

Demand Marketing Manager

Hiring Organisation
Circle Group
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
background in SAAS, to lead enterprise focused demand strategy and pipeline progression, delivering high-quality opportunities across complex B2B sales cycles and engaging security decision-makers within global organisations. For this role, you must be resident in the UK and eligible to work without visa sponsorship. Role Overview Define … will ideally have 5+ years' experience in demand generation or growth marketing, including: Experience marketing to cybersecurity audiences such as CISOs, SecOps, AppSec and IT teams, with a solid understanding of industry challenges, threat landscapes and relevant media channels. Background in start-up or scale-up environments, with the ability ...