1 to 25 of 37 Application Security Jobs in the South East

The Role Embed security best practices within the SDLC, collaborating with developers to ensure secure coding. Conduct security assessments, identify potential threats, and mitigate risks in web and mobile applications. Perform application security testing (SAST, DAST) and manual security code reviews. Implement and manage security tools such as SAST, DAST, SCA, and CI/… CD security integrations. Investigate security incidents, prioritise remediation and guide teams on secure development practices. Ensure applications meet industry standards (OWASP Top 10, NIST, ISO 27001) and regulatory requirements (GDPR, PCI-DSS, etc.) Educate engineers and stakeholders on security threats, vulnerabilities and secure coding practices. Skills 5+ years of experience in application security, penetration testing … or software security engineering. Strong knowledge of secure coding principles in one or more languages (e.g., Python, Java, JavaScript, Go, .NET). Hands-on experience with SAST, DAST, SCA and security automation in CI/CD pipelines. Familiarity with cloud security (AWS, Azure, GCP) and container security (Docker, Kubernetes). Knowledge of OWASP Top 10, CWE More ❯

The Role Embed security best practices within the SDLC, collaborating with developers to ensure secure coding. Conduct security assessments, identify potential threats, and mitigate risks in web and mobile applications. Perform application security testing (SAST, DAST) and manual security code reviews. Implement and manage security tools such as SAST, DAST, SCA, and CI/… CD security integrations. Investigate security incidents, prioritise remediation and guide teams on secure development practices. Ensure applications meet industry standards (OWASP Top 10, NIST, ISO 27001) and regulatory requirements (GDPR, PCI-DSS, etc.) Educate engineers and stakeholders on security threats, vulnerabilities and secure coding practices. Skills 5+ years of experience in application security, penetration testing … or software security engineering. Strong knowledge of secure coding principles in one or more languages (e.g., Python, Java, JavaScript, Go, .NET). Hands-on experience with SAST, DAST, SCA and security automation in CI/CD pipelines. Familiarity with cloud security (AWS, Azure, GCP) and container security (Docker, Kubernetes). Knowledge of OWASP Top 10, CWE More ❯

Press Tab to Move to Skip to Content Link This IT Cyber Security Engineer will report to the Cyber Security Engineering Lead and will work within the Information Systems directorate based in our Crawley office. You will be a permanent employee. You will attract a salary of up to £70,000.00 - depending on skills, qualifications and experience and … Tech, and Green Car Leasing Schemes Occupational Health support Switched On - scheme providing discount on hundreds of retailers' products Discounted gym membership Employee Assistance Programme Job purpose: The Cyber Security IT Engineer will evaluate all security solution technologies and toolsets and help develop the security systems within the organisation and will ensure that UK Power Networks data … network, and systems are protected from cyber threats and will comply with the relevant standards and regulations. You will also provide technical support to other security team professionals and partners. Dimensions: UK Power Networks is expanding its presence in Microsoft Azure and is enhancing its on-prem OT Mission Critical Systems. It is important that a secure environment is More ❯

month contract in a Work from Office (WFO) role. This role will focus on creating a business strategy, gap analysis and implementation, for securing their Azure-based infrastructure, integrating security automation, ensuring PCI DSS compliance, vulnerability and penetration testing and incident response. This role will focus on developing and maintaining secure, scalable Azure DevOps pipelines and Infrastructure as Code … IaC) using Terraform. Their ideal candidate will have a strong background in cloud security best practices, automation, and a proactive approach to integrating security across their software delivery lifecycle. A key part of this position will also involve mentoring an internal engineer, developing structured security policies, and managing Sentinel, Defender and SOAR solutions for automated threat response. … Additionally, the role requires liaising with third-party support partners to coordinate security solutions, manage incidents, and enhance overall cybersecurity posture. Responsibilities Infrastructure Security: Architect and secure Azure-based infrastructure using Terraform, ensuring adherence to security best practices by developing, maintaining, and optimizing Terraform code. DevOps Pipeline Development and Maintenance: Design, develop, and optimize Azure DevOps pipelines More ❯

We are searching for a Senior Software Security Architect/Senior Application Security Architect for a marketing leading and award-winning technology and data driven business. The position is offered on a remote basis. The role is hands-on and very software engineering focused - you will be responsible for establishing a secure SDLC and 'Secure by Design … approach/practice to be used by all of the Architecture and Software development teams. The role will involve: Developing, implementing, and maintaining application security architecture across the organisation. Ensuring our systems are designed with objectives like speed, scalability, robustness, zero-trust, automation and supportability at the core. Collaborating with the Architecture and Engineering Team to ensure security is an integral part of all development and deployment processes. Providing expert software security advice (design, coding, testing) to the Software Engineering Community, to InfoSec, DevOps and other teams. Defining and delivering secure software development of information to the software engineering teams. Escalating issues appropriately, to various teams and levels of authority inside the organisation. Interfacing with customers More ❯

A great client of mine is hiring a Security-Focused Technical Consultant/Security Architect to join a highly regulated healthcare tech environment. You’ll work cross-functionally with engineering, architecture, and business teams to design secure solutions, manage risks, and ensure compliance across a portfolio of applications. Length: Initial 7 months with chance to extend or go … perm. IR35: Inside Work structure: Remote Key Responsibilities: Partner with engineering and architecture to define secure technical solutions Manage end-to-end project security across multiple applications Perform vulnerability testing, threat modelling, and risk assessments Maintain up-to-date security policies, standards, and best practices Communicate risks and mitigation strategies to senior stakeholders Translate business needs into effective … security controls Key Skills & Experience: 5+ years in security architecture or consulting in regulated environments Deep knowledge of secure SDLC, DevSecOps, cloud (Azure/AWS), and frameworks (OWASP, MITRE) Hands-on experience with vulnerability tools, threat modelling, and compliance (GDPR, HIPAA, PCI) Strong communication and stakeholder engagement skills Technical knowledge across .NET, Java, scripting (Python, PowerShell), APIs, and More ❯

build on this momentum, advancing the National Energy System Operator's (NESO) plan for zero carbon operability of the electricity system by 2025. We are seeking an experienced Senior Security Architect to work across all programme workstreams, reporting to the Enterprise Security Architect. This role involves designing secure solutions fit for the future, ensuring NESO's long-term … success. The Senior Security Architect will not only be hands-on when designing architectures, reviewing proposals, designs, and preparing documentation but will also support the Enterprise Security Architect by ensuring that the overall security strategy and policies are considered throughout the design and build process. The Senior Security Architect will play a crucial role in promoting … collaboration among various teams, eliminating siloed workflows, and integrating secure design principles along with other critical security protocols across different stages of the delivery lifecycle. In this role, you will regularly attend the Security Architecture Group meetings, contributing to the development of essential architecture strategies and patterns for NESO. Building and managing relationships with the business is key More ❯

build on this momentum, advancing the National Energy System Operator's (NESO) plan for zero carbon operability of the electricity system by 2025. We are seeking an experienced Senior Security Architect to work across all programme workstreams, reporting to the Enterprise Security Architect. This role involves designing secure solutions fit for the future, ensuring NESO's long-term … success. The Senior Security Architect will not only be hands-on when designing architectures, reviewing proposals, designs, and preparing documentation but will also support the Enterprise Security Architect by ensuring that the overall security strategy and policies are considered throughout the design and build process. The Senior Security Architect will play a crucial role in promoting … collaboration among various teams, eliminating siloed workflows, and integrating secure design principles along with other critical security protocols across different stages of the delivery lifecycle. In this role, you will regularly attend the Security Architecture Group meetings, contributing to the development of essential architecture strategies and patterns for NESO. Building and managing relationships with the business is key More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Title: Lead Application Security Engineer Location: Fully Remote (UK-based) Salary: £110,000 – £130,000 base + Bonus Sector: FinTech/Digital Consumer Finance We’re recruiting on behalf of a UK-based FinTech that’s simplifying how consumers engage with credit – offering digital credit cards and financial services built on cloud-native architecture and driven by data. … what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape the AppSec strategy while also getting into the code. You’ll build your own team: This role includes team growth – you’ll start as a leader and grow your own capability beneath … Engineering Second stage with CIO Final conversation and potentially a take-home exercise If you're ready to be the attacker before the attacker is, and want to lead AppSec in an ambitious and growing FinTech, we’d love to hear from you. More ❯

Are you a passionate security researcher with experience assessing large, complex software products? We are looking for talented individuals who are excited about security research and developing creative solutions for some of Oracle’s most critical customers. Finding and combining bugs to create new attacks is essential in this role. Who We Are We are a world-class … team of application security researchers who love new challenges. We are an inclusive and diverse, with a full range of experience and a global reach. We have the resources of a large enterprise and the energy of a start-up, and we’re working on a critical software assurance initiative with our cloud and mobile engineering teams. Our … mission is to make application security and software assurance a reality, at scale. We’re a dedicated team that leverages each other’s strengths to produce cutting-edge solutions to difficult problems. Join us to grow your career and create the future of software assurance at scale. Work You’ll Do As a member of our team, you More ❯

months of hands-on penetration testing experience and a strong interest in developing advanced technical skills. This is a rare opportunity to join a highly skilled and diverse security team committed to continuous growth and excellence in the field of offensive security. Key Responsibilities: Conduct hands-on Web Application Penetration Testing Support and contribute to Infrastructure and Cloud … Security Assessments Be mentored and trained towards Adversarial Simulation , Red Team Operations , and other advanced offensive security techniques Write detailed, clear, and professional reports for technical and non-technical stakeholders Collaborate with a team of skilled professionals and contribute to knowledge sharing Requirements: Minimum 6 months of practical penetration testing experience (freelance, consultancy, or internal testing roles considered … OSCP certification is essential (OSEP, OSCE3, or other advanced Offensive Security certifications also accepted) Demonstrable knowledge of Web Application security , including common vulnerabilities (e.g., OWASP Top 10) Strong desire to deepen technical capabilities across various domains, including infrastructure, cloud, and red teaming Excellent written and verbal communication skills Full right to work in the UK (UK Passport More ❯