101 to 120 of 120 Application Security Jobs in London

Contract Opportunity: Application Developer – SC Cleared 📍 Hybrid: 3 days on-site (London SW1A), 2 days remote 📅 Start: ASAP | Contract until March 2026 💼 Outside IR35 | £550 per day We’re hiring a Developer/Platform Engineer with active SC clearance to help deliver and maintain scalable, secure, and flexible communication platforms for a critical national programme. This is a unique … plugins, bots, and SSO/LDAP connectors Harden, secure, and monitor platforms with TLS, OAuth2, RBAC , and Zero Trust principles Troubleshoot and support complex platform deployments Collaborate with DevOps, AppSec, and engineering teams Document everything from architecture and configuration to custom builds WHAT YOU NEED TO BE SUCCESFUL Strong hands-on experience with Docker & Kubernetes in live production environments Scripting More ❯

process improvements and optimisations Support in compliance reviews and assessments Engage with projects to scope assessments and provide close out feedback to the project teams Collaborate with the wider Security Operations teams to enable better utilisation of results. Technical Requirements: Advanced with offensive tools such as: Metaspoit, Kali Linux, Cobalt Strike, Mimikatz, Burpsuite or similar tools Good knowledge of … creating scripts in preferred scripting language Technical expertise in system security vulnerabilities and remediation techniques, network and web-related protocols (e.g., TCP/IP, UDP, IPSEC, HTTP, etc.) Technical expertise in security engineering, system and network security, authentication and security protocols Highest level of technical expertise in cybersecurity, including deep familiarity with relevant penetration and intrusion … techniques and attack vectors Familiarity with the Open Web Application Security Project (OWASP) top 10 vulnerabilities Rate & Duration: £550 - £600 per day 6 Months Penetration Tester - £550 - £600 Per Day – London (Hybrid) – 6 Months - Financial Services More ❯

process improvements and optimisations Support in compliance reviews and assessments Engage with projects to scope assessments and provide close out feedback to the project teams Collaborate with the wider Security Operations teams to enable better utilisation of results. Technical Requirements: Advanced with offensive tools such as: Metaspoit, Kali Linux, Cobalt Strike, Mimikatz, Burpsuite or similar tools Good knowledge of … creating scripts in preferred scripting language Technical expertise in system security vulnerabilities and remediation techniques, network and web-related protocols (e.g., TCP/IP, UDP, IPSEC, HTTP, etc.) Technical expertise in security engineering, system and network security, authentication and security protocols Highest level of technical expertise in cybersecurity, including deep familiarity with relevant penetration and intrusion … techniques and attack vectors Familiarity with the Open Web Application Security Project (OWASP) top 10 vulnerabilities Rate & Duration: £550 - £600 per day 6 Months Penetration Tester - £550 - £600 Per Day – London (Hybrid) – 6 Months - Financial Services More ❯

Technologies: Docker SQL NoSQL AWS Lambda DynamoDB application security HTML5 ES2018 React Redux Webpack NodeJS REST APIs Git Software Architecture Scalable Apps Optimisation The Benefits: Situated in the heart of London's Tech City with easy access to the mainline and tubes, the area is now a trendy area to live and work, with creative businesses and smart … campaigns Team mentoring and best practice guidance and code reviews Experience with running or contributing to hackathons Skillset - Expert Knowledge/Experience Docker SQL/NoSQL AWS Lambda DynamoDB Application Security Skillset: Degree in Computer Science or related area Excellent communication skills in English, both written and verbal HTML5 ES2018 Webpack Node.js REST APIs Git/workflow models More ❯

individuals with strong technical skills and a proactive mindset, eager to make a tangible impact across a wide range of client environments. Working on mission critical projects across National Security, Critical National Infrastructure and Defence the Senior Penetration Tester will liaise with highly-skilled teams acting as a trusted advisor. Key Responsibilities: Conduct hands-on internal penetration tests in … such as CTM, CSTM, CTL, CSTL, OSCP, or CREST/Cyber Scheme qualifications. Brings specialist knowledge in one or more areas of penetration testing – this could include mobile app security, cloud environments, operational technology (OT), or specific sectors such as telecommunications, defence, or maritime. Demonstrates a strong desire to contribute to the growth of the team – whether by supporting More ❯

individuals with strong technical skills and a proactive mindset, eager to make a tangible impact across a wide range of client environments. Working on mission critical projects across National Security, Critical National Infrastructure and Defence the Senior Penetration Tester will liaise with highly-skilled teams acting as a trusted advisor. Key Responsibilities: Conduct hands-on internal penetration tests in … such as CTM, CSTM, CTL, CSTL, OSCP, or CREST/Cyber Scheme qualifications. Brings specialist knowledge in one or more areas of penetration testing – this could include mobile app security, cloud environments, operational technology (OT), or specific sectors such as telecommunications, defence, or maritime. Demonstrates a strong desire to contribute to the growth of the team – whether by supporting More ❯

your resume as a PDF and do not include any salary or compensation information in it. ExpressVPN is one of the world's leading providers of online privacy and security services for consumers. Started in 2009, we've grown to have millions of active paying customers, a team of more than 700 people worldwide, and a brand recognized by … Resume/CV Drop files here (File types: pdf, doc, docx, txt, rtf) Enter the verification code sent to confirm you are not a robot, then submit your application. Security Code More ❯

Application Security Consultant - Cryptography, SC clearance £Market Rate - Inside IR35 London/Remote 6 months My client is an instantly recognisable consultancy who require an Application Security Consultant for a business-critical programme with a high-profile end client. Key Requirements: Proven commercial experience working as an Application Security Consultant within a large, complex … Encryption and Data Security. Certificate and Key Management skills, including overseeing the entire lifecycle of Digital Certificates and Cryptographic Keys. Familiarity with Data Loss Prevention (DLP) and Cloud Access Security Broker (CASB). Previous experience using Hardware Security Module (HSM). Excellent communication skills. Eligibility for SC Clearance (5 years UK residency). Nice to have: Active SC More ❯

Application Security Consultant - Cryptography, SC clearance £Market Rate - Inside IR35 London/Remote 6 months My client is an instantly recognisable consultancy who require an Application Security Consultant for a business-critical programme with a high-profile end client. Key Requirements: Proven commercial experience working as an Application Security Consultant within a large, complex … Encryption and Data Security. Certificate and Key Management skills, including overseeing the entire lifecycle of Digital Certificates and Cryptographic Keys. Familiarity with Data Loss Prevention (DLP) and Cloud Access Security Broker (CASB). Previous experience using Hardware Security Module (HSM). Excellent communication skills. Eligibility for SC Clearance (5 years UK residency). Nice to have: Active SC More ❯

pharmaceutical client based in Docklands. System architecture and functional design experience required working in a similar position. Industry experience would be preferable. 3 month + Skills required : Java software application development; AngularJS; Continuous integration (Jenkins/Maven/Nexus/Sonar). Duties : Review business requirements, identifying high risk and/or costly requirements. Ensure requirements such as security … and estimate work packages and allocate resources according to their skills for project work. Actively participate in software implementation phase according to defined requirements, including user interface design and application security aspects, in compliance with agreed project planning. Ensure the delivery of good quality software. Leading architecture and code reviews and addressing outcomes of the reviews. Clearly articulating More ❯

45k - £60k Work Pattern: On-Site For 3 Months and Then 3 Days On-Site/2 Days WFH Skillset: OWASP, Cloud Platforms, SSL/TLS Summary An elite security consultancy has a brand new role for an experienced Penetration Tester to join their team. The role is being offered on a permanent basis from their central London office … close to major transport links. You will be tasked with conducting security assessments of client assets in addition to ensuring the highest quality of client deliverables. Initially, you will be working full-time onsite which will then reduce to 3 days on-site and 2 days work from home. There may also be occasional visits to client sites across … the UK. The Company Partnered with multiple industry leaders, the company provide a range of security services from security awareness training, policies and assessments. Their goal is to empower, and provide clients with an exceptional customer experience by thinking outside the box, sharing knowledge and delivering high-quality results. As an employee you will receive a competitive salary More ❯

Application Security Engineer - FinTech Our client is a growing FinTech, building cutting edge trading platforms for hedge funds and investment managers around the world. In London, they’re looking for an Application Security Engineer, with strong Penetration Testing experience, to join them. This is an initial 6 month contract, hybrid working (3 days a week in … the office), outside IR35 and paying ~£550 - £600 per day. This hire is part of a security -focused transformation and you’ll be responsible for identifying and mitigating security vulnerabilities, and risk, within their applications. You’ll focus on building security tools, penetration testing and performing security assessments, whilst updating internal security processes and documentation … the process. Required: Strong experience as an App Sec Engineer Extensive experience of Penetration Testing Hands-on experience with tools such as Burp Suite and Metasploit Capable of designing Security policies, procedures and best practices The ability to investigate and respond to Security related incidents within applications, and work closely with Dev teams throughout API Testing experience (with More ❯

Application Security Engineer - FinTech Our client is a growing FinTech, building cutting edge trading platforms for hedge funds and investment managers around the world. In London, they’re looking for an Application Security Engineer, with strong Penetration Testing experience, to join them. This is an initial 6 month contract, hybrid working (3 days a week in … the office), outside IR35 and paying ~£550 - £600 per day. This hire is part of a security -focused transformation and you’ll be responsible for identifying and mitigating security vulnerabilities, and risk, within their applications. You’ll focus on building security tools, penetration testing and performing security assessments, whilst updating internal security processes and documentation … the process. Required: Strong experience as an App Sec Engineer Extensive experience of Penetration Testing Hands-on experience with tools such as Burp Suite and Metasploit Capable of designing Security policies, procedures and best practices The ability to investigate and respond to Security related incidents within applications, and work closely with Dev teams throughout API Testing experience (with More ❯

Application Security Engineer - FinTech Our client is a growing FinTech, building cutting edge trading platforms for hedge funds and investment managers around the world. In London, they’re looking for an Application Security Engineer, with strong Penetration Testing experience, to join them. This is an initial 6 month contract, hybrid working (3 days a week in … the office), outside IR35 and paying ~£550 - £600 per day. This hire is part of a security -focused transformation and you’ll be responsible for identifying and mitigating security vulnerabilities, and risk, within their applications. You’ll focus on building security tools, penetration testing and performing security assessments, whilst updating internal security processes and documentation … the process. Required: Strong experience as an App Sec Engineer Extensive experience of Penetration Testing Hands-on experience with tools such as Burp Suite and Metasploit Capable of designing Security policies, procedures and best practices The ability to investigate and respond to Security related incidents within applications, and work closely with Dev teams throughout API Testing experience (with More ❯

Our mission is to make world-class software security available to everyone. This means building program analysis tools that are open source, easy to use, powerful, and fast. It also means building a team with security expertise and a passion for great developer experiences. Most of all, it means working with honesty and respect in a diverse community … and issues they're trying to resolve with code security, and know how Semgrep can help. Your mantra is always-be-prospecting: the world of DevSecOps, and specifically, AppSec is rapidly changing. You strive to be an expert yourself and have access to Semgrep experts so, when you reach out to a prospect, they want to take your meeting. … or late evening customer calls and travel for customer onsite meetings. You have 3-5 years of sales experience in high pace environments with consistent quota achievement. Bonus: relevant AppSec experience and/or early stage startup experience. You have excellent customer orientation: possess record breaking SLAs in responding to any and all customer needs. Are an expert in working More ❯

Our mission is to make world-class software security available to everyone. This means building program analysis tools that are open source, easy to use, powerful, and fast. It also means building a team with security expertise and a passion for great developer experiences. Most of all, it means working with honesty and respect in a diverse community … and issues they're trying to resolve with code security, and know how Semgrep can help. Your mantra is always-be-prospecting: the world of DevSecOps, and specifically, AppSec is rapidly changing. You strive to be an expert yourself and have access to Semgrep experts so, when you reach out to a prospect, they want to take your meeting. … high pace environments with consistent quota achievement. You have closed multiple 6 or 7-figure deals a year, several years in a row within large Enterprise organizations. Bonus: relevant AppSec experience and/or early stage startup experience. You have excellent customer orientation: possess record breaking SLAs in responding to any and all customer needs. Are an expert in working More ❯

have the autonomy to shape the direction of the function, with the support of the Executive Director. Those with a background and deep expertise in any of the following: Security risk management, Security policies and governance, or Security controls testing will be the best fit for this position. To be considered for this role, you must have … lived experience or personal characteristics. We also invite applicants who meet most of the listed requirements, even if not all, to apply. If you require any adjustments to the application process, please let us know. Barclay Simpson acts as an Employment Agency for permanent positions and an Employment Business for temporary/contract engagements. Technical IAM Consultant required for … join an View job & apply SOC Manager Location: Fully Remote Job type: Contract Position Overview Rapidly growing FinTech company seeking an accomplished Cybersecurity Operation View job & apply Senior Cyber Security Analyst Location: London Job type: Permanent Financial Service firm seeks a Senior Cyber Security Analyst to join its Security team. This indi View job & apply Location: Fully More ❯

site to function and expire at the end of thesession) - Session management cookies: user, device and session ID cookies along with timestamp cookies for timing out sessions after inactivity. -Application Security Management (ASM) cookies : to help protect web infrastructure from security attacks. -Routing cookies: to forward requests for a single session to the same server for consistency … religion, colour, national origin, gender, sexual orientation, age, marital status or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation. Please visit Samsung membership to see More ❯

site to function and expire at the end of thesession) - Session management cookies: user, device and session ID cookies along with timestamp cookies for timing out sessions after inactivity. -Application Security Management (ASM) cookies : to help protect web infrastructure from security attacks. -Routing cookies: to forward requests for a single session to the same server for consistency … religion, colour, national origin, gender, sexual orientation, age, marital status or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation. Please visit Samsung membership to see More ❯

and an understanding of architectural patterns like DDD and microservices. Proficient at writing automated tests using frameworks such as Jest, React Testing Library or Cypress. Strong knowledge of web application security and how to guard against common vulnerabilities. What's in it for you: Grow with Goodlord : your development is important to us, that's why we are More ❯