101 to 125 of 181 Application Security Jobs in the UK

As a Control Testing Lead, you will play a key role within the Information Security team, supporting the Control Test and Assurance Manager in the delivery of a robust and forward-looking Cybersecurity Control Testing & Assurance Programme. This role requires strong cybersecurity expertise combined with hands-on experience in control testing, particularly in evaluating the effectiveness of security … Manager, with whom you will work to deliver the goals of the company to have a stable and fit-for-purpose control testing environment that supports the organisation's security and compliance objectives. What you'll be doing as a Control Testing Lead - Cyber Security Support the implementation and continuous improvement of the Cybersecurity Control Testing Framework. Execute … To thrive in this role, the essential criteria you'll need are Proven experience in performing cybersecurity control assessments, including evaluating design and operational effectiveness. Strong understanding of information security principles, cyber risk management, and control frameworks. Experience in IT, OT and Cloud environments, with a focus on cybersecurity controls. Clear and professional verbal and written communication, including the More ❯

Hiring Mobile Security Engineer - Contractual (Bristol - UK) Client Introduction: The company is a multinational Sweden SAAS product-based firm. Company Strength: 100+Key Responsibilities Job Summary Our team is accountable for security within the mobile channel. We provide a suite of mobile security components, that provides an all-round security posture in mobile apps including associated services … passionate about our shared passion for delivering new features for customers across our brands in the mobile space. This role will be pivotal in building, delivering, and driving the security of our mobile platform. The key aspect of this role is the design and delivery of a world-class security framework, including associated services (penetration testing, research, consultancy … etc.). Essential skills & experience: Experience of Mobile platform security, threat modelling and mitigation techniques Capable of conducting regular reviews of our mobile application security posture using your hands-on experience. Develop and maintain pen-testing security tools, scripts, policies and procedures In depth knowledge of mobile app security standards (Android/iOS) Desirable knowledge More ❯

17th, 2025Apply Now WAF Specialist/Engineer London- Contract- Hybrid (3 days from WFO)This is a hands-on, high-impact position where you'll combine your expertise in security operations, web application security, and WAF engineering to craft custom rules, analyze traffic, reduce false positives, and uplift our overall security posture . What You'll … DoDesign and implement custom WAF rules and configurations to close security gaps.Conduct log analysis and efficacy testing , identifying and mitigating false positives.Support WAF PoCs, DevSecOps pipelines, and automation for scalable testing.Act as an SME for web & API attack methodologies , evasions, and mitigations.Collaborate with security, DevOps, and engineering teams to ensure seamless WAF integration.Stay ahead of … emerging web security threats and trends to continuously improve defenses. What We're Looking ForStrong experience in WAF management, tuning, and engineering .Hands-on background in SOC, CSIRT, AppSec, or Ethical Hacking .Skilled in log analysis (e.g., Splunk, Wireshark, or scripting for traffic analysis).Experience with at least three major WAF vendors (Akamai, F5, AWS, GCP, etc.).Ability to More ❯

Location: Sunderland, London OR Leicester Duration: 6 months initially Rate: Flexible depending on experience, Inside IR35 Are you experienced in providing 2nd/3rd line Application Support for Oracle EBS financials? Do you have a background in leading a team and ideally working with external vendors? If so, apply now for this new role for an Application Support … be based in London, Sunderland OR Leicester and it will require 3 days per week onsite in your chosen location. It will initially be for 6 months. As the Application Support Team Leader, you’ll be responsible for leading a team of 6 Application Support Analysts to deliver comprehensive 2nd and 3rd line application support. You’ll … continuous improvement across business-critical systems. Central to this role will be the support of Oracle E-Business Suite Financials, and prior experience will be necessary. In addition, the Application Support Team Leader will oversee the support of a range of bespoke, industry-specific applications. Key Responsibilities Lead and manage a team of application support analysts, setting clear More ❯

Location: Sunderland, London OR Leicester Duration: 6 months initially Rate: Flexible depending on experience, Inside IR35 Are you experienced in providing 2nd/3rd line Application Support for Oracle EBS financials? Do you have a background in leading a team and ideally working with external vendors? If so, apply now for this new role for an Application Support … be based in London, Sunderland OR Leicester and it will require 3 days per week onsite in your chosen location. It will initially be for 6 months. As the Application Support Team Leader, you’ll be responsible for leading a team of 6 Application Support Analysts to deliver comprehensive 2nd and 3rd line application support. You’ll … continuous improvement across business-critical systems. Central to this role will be the support of Oracle E-Business Suite Financials, and prior experience will be necessary. In addition, the Application Support Team Leader will oversee the support of a range of bespoke, industry-specific applications. Key Responsibilities Lead and manage a team of application support analysts, setting clear More ❯

Mobile Security Engineer Location - Bristol, UK (Hybrid - 3days Onsite) Inside IR35 Contract ( 6months to start with) Banking sector Project Skills Required - Experience of Mobile platform security, threat modelling and mitigation techniques Capable of conducting regular reviews of our mobile application security posture using your hands-on experience. Develop and maintain pen-testing security tools, scripts … policies and procedures In depth knowledge of mobile app security standards (Android/iOS More ❯

Group's public cloud & developer architecture. Innovation is at the heart of this program and the role/key focus areas will continuously evolve to meet the business change, security, and our digital strategy!The Director, Cloud Architecture (Network) will provide the leadership, drive and focus on the strategy, design and evolution London Stock Exchange Group's strategic public … technical outcome. Retire and or decommission a number of the data centres across the globe to a cloud hosted environment Work with the Group CISO and the broader IT security teams to improve security controls Leverages emerging & innovative technologies in Cloud and development to enable simplification of technology landscape and service consumption to improve customer experience and drive … early and often as possible WHAT YOU'LL BRING: Proven deep technical background working with related infrastructure technologies Experience with the following technology areas + SDLC - Continuous Integration & Delivery, Application Security, Quality Assurance + Platforms - Istio, Serverless, Kubernetes + Processes - Agile, Lean, Product Development + Culture - DevSecOps, Continuous Change + Software engineering with exposure to event high performance More ❯

and software management, anchored in a continuous innovation culture What you’ll be doing: As a DevOps Engineer at Ripjar you will be responsible for ensuring the reliability and security of the infrastructure that underpins our development and operational services. You will play an active role in supporting and continuously improving our core infrastructure offering, providing a solid foundation … and applications hosted on Linux-based systems Design, deploy and maintain IP networks. Create robust automated solutions to allow development teams to self-serve routine infrastructure requests. Improve code security by integrating security testing tools into build and deployment pipelines. Implement effective monitoring of the reliability and security of applications and infrastructure services. Requirements: The successful candidate … administering IP networking in a corporate environment. Experience of automating tasks using languages and tools such as Bash, Python, JavaScript, and GitHub Actions Knowledge of how to effectively use security testing and monitoring tooling, e.g. SAST and SIEM products. Candidates with the following background will be of particular interest: Experience contributing to incident response across a complex microservice-based More ❯

If you need support in completing the application or if you require a different format of this document, please get in touch with at UKI.recruitment@tcs.com or call TCS London Office number 02031552100/+44 204 520 2575 with the subject line: “Application Support Request”. Role: Technical Architect - Python Job Type: Permanent Location: Bradford Mode: Hybrid … challenging projects which demand ambitious innovation and thought leadership. The Role: We're seeking an experienced Technical Architect who is responsible for planning, designing , and implementation of python based application/projects ensuring they are completed on time, within scope, and within budget. They coordinate between teams, manage resources, mitigate risks, and ensure alignment with business goals. Your responsibilities … maintainability. • Evaluate and select appropriate Python frameworks (Django, Flask, FastAPI, etc.) based on project requirements. • Create detailed technical design documents, including system diagrams, data flow, and API specifications. • Ensure application security, performance, and scalability. • Collaborate with cross-functional teams, including designers, testers, and DevOps engineers. • Work with cloud platforms AWS, for deployment and monitoring. • Follow Agile methodologies (Scrum More ❯

vulnerability management lifecycle Vendor and market analysis and engagement Ability to translate technical information into Risks, Threats, and Vulnerabilities for both a technical and non-technical audience Cloud based security (AWS/GCP), with a specialism in vulnerability management Self-starter, able to work in technical detail and motivate a diverse group of stakeholders to build sponsorship for significant … and impactful change Desired: Establishing observability platforms Capabilities adjacent to exposure/vulnerability management capabilities (ie cyber security asset management, attack surface management, etc) Pragmatic application of zero-trust philosophies Cloud based security (GCP, AWS and Azure) Pentest scoping and analysis experience Application security Threat modelling To apply for this position please submit your CV. More ❯

vulnerability management lifecycle Vendor and market analysis and engagement Ability to translate technical information into Risks, Threats, and Vulnerabilities for both a technical and non-technical audience Cloud based security (AWS/GCP), with a specialism in vulnerability management Self-starter, able to work in technical detail and motivate a diverse group of stakeholders to build sponsorship for significant … and impactful change Desired: Establishing observability platforms Capabilities adjacent to exposure/vulnerability management capabilities (ie cyber security asset management, attack surface management, etc) Pragmatic application of zero-trust philosophies Cloud based security (GCP, AWS and Azure) Pentest scoping and analysis experience Application security Threat modelling To apply for this position please submit your CV. More ❯

on the strategic direction and vision of the region and company as a whole. Role and Responsibilities Assist in guiding the strategic vision, growth plans, and execution of the security practice. Oversee client engagements for the practice including ensuring timeliness and quality of deliverables. Develop and maintain standardized processes, methodologies, and tools to improve efficiency and consistency. Manage budgets … resources, and timelines to ensure project success. Managing security strategy development and defining roadmaps in alignment with client business objectives. Perform security program assessments against established frameworks and best practices such as NIST CSF, CIS, PCI DSS, HIPAA, ISO, SOC 1/2 Prepare the clients for security audits such as PCI DSS, ISO 27k, SOC . … Partner with the Client Account to understand client requirements and able to design appropriate solutions and offers. Identify improvement opportunities to enhance/optimize security, decrease costs, and increase client value. Translate client requirements into solutions by leveraging SMEs to create value for our clients and Crosslake. Develop strong long term client relationships and become recognized as a trusted More ❯

you to achieve success faster and more effectively. Role Overview As a Senior Software Engineer, you will play a pivotal role in architecting and developing our next-generation web application and API. This role requires technical leadership, hands-on development, and mentoring of junior developers. You will drive the adoption of best practices, ensuring scalability, security, and performance. … record of leading development teams and managing large-scale projects. Database Expertise: In-depth experience with PostgreSQL/SQL, including design of complex schemas, writing queries and performance optimisation. Security & Performance: Deep understanding of application security best practices, performance tuning, and scalable architecture. Problem-Solving: Ability to troubleshoot complex technical issues, with a proactive and solution-oriented More ❯

you to achieve success faster and more effectively. Role Overview As a Senior Software Engineer, you will play a pivotal role in architecting and developing our next-generation web application and API. This role requires technical leadership, hands-on development, and mentoring of junior developers. You will drive the adoption of best practices, ensuring scalability, security, and performance. … record of leading development teams and managing large-scale projects. Database Expertise: In-depth experience with PostgreSQL/SQL, including design of complex schemas, writing queries and performance optimisation. Security & Performance: Deep understanding of application security best practices, performance tuning, and scalable architecture. Problem-Solving: Ability to troubleshoot complex technical issues, with a proactive and solution-oriented More ❯

C# and Azure Development C# Development, .NET core/.NET Framework Full understanding of Object Orientated and SOA design patterns Azure: APIM, including extensive use of policies, caching and security aspects Azure Functions Azure AI Search, using API and designing indexes Azure Blob and Table Storage used via Rest APIs Azure AD, Enterprise apps and interactions via Graph API … Postman GitHub or similar Containerization tech: Docker, Kubernetes Relevant Microsoft Certifications Essential functions of the job Development, Design, Architecture Ensure product managers and stakeholders requirements are met through development application solutions. Define and design good architectural solutions for implementation within agreed timeframes and predictable costs. Utilize, where appropriate, distributed and decoupled architectures, utilizing APIs and event- based architectures. Design … and maintain coding standards ensuring best practices are followed. Advocate for continuous improvement to development processes and code quality. Governance and Compliance Contribute to and follow coding standards and security policies, maintaining and supporting compliance with security standards/guidelines such as PCI v4, OWASP etc. Ensure Senior and Junior Developers are well trained in application security More ❯

Information Security Analyst - £80K Our client is a leading Software-as-a-Service (SaaS) development company – They build bespoke Big Data solutions for financial services, pharma and ecommerce client around the world. Offer great remote/hybrid flexible working, they’re looking for an experienced Cyber Security Analyst to join them. You’ll work directly with the CSO … and SOC team to create and deliver the security strategy, information security framework and risk mitigation activity for the company. You’ll have the chance to be involved in everything from security assessments and threat modelling to triage of security events, ownership of policies ad procedures and even working with development and engineering teams to drive … application security. Requirements: Proven experience as an Information/Cyber Security Analyst Certified Information Security Manager (CISM) or Certified Information Systems Auditor (CISA) or equivalent Extensive cyber and information security (InfoSec) experience Experience of working in demanding, environments Good undersyanding of Windows, Cloud and IT infrastructure Excellent communication skills More ❯

Information Security Analyst - £80K Our client is a leading Software-as-a-Service (SaaS) development company – They build bespoke Big Data solutions for financial services, pharma and ecommerce client around the world. Offer great remote/hybrid flexible working, they’re looking for an experienced Cyber Security Analyst to join them. You’ll work directly with the CSO … and SOC team to create and deliver the security strategy, information security framework and risk mitigation activity for the company. You’ll have the chance to be involved in everything from security assessments and threat modelling to triage of security events, ownership of policies ad procedures and even working with development and engineering teams to drive … application security. Requirements: Proven experience as an Information/Cyber Security Analyst Certified Information Security Manager (CISM) or Certified Information Systems Auditor (CISA) or equivalent Extensive cyber and information security (InfoSec) experience Experience of working in demanding, environments Good undersyanding of Windows, Cloud and IT infrastructure Excellent communication skills More ❯

with a strong applications background to play a pivotal role in shaping enterprise-level solutions for a forward-thinking organisation. You'll design and implement scalable, secure, and modern application architectures that directly support business goals. This is a permanent role offering the chance to influence strategy, guide development teams, and work with the latest technologies in a supportive … Lead architecture reviews, offering guidance and mentoring to technical teams. Evaluate, recommend, and implement tools, frameworks, and technologies that align with business needs. Ensure alignment with enterprise architecture and security policies. Document architecture designs, workflows, and technical specifications. Troubleshoot and resolve complex architectural challenges. Support modernisation, migration, and integration initiatives across the application landscape. Software Architect Requirements Degree … languages such as Java, C#, Python, or JavaScript/TypeScript. Hands-on experience with cloud platforms (in particular Azure) Excellent communication and stakeholder engagement skills. Desirable: Experience in enterprise application integration (EAI). Knowledge of data modelling and application security best practices. Certifications such as TOGAF, AWS Certified Solutions Architect, or Microsoft Certified: Azure Solutions Architect. What More ❯

IT Security Engineer- £70K Our client is a leading London professional services and law firm, they work with client in technology, financial services, pharma and ecommerce around the world. Offer great remote/hybrid flexible working, they’re looking for an experienced InfoSec/Cyber Security Engineer to join them. You’ll work directly with the CSO and … SOC team to create and deliver the security strategy, information security framework and risk mitigation activity for the company. You’ll have the chance to be involved in everything from security assessments and threat modelling to triage of security events, ownership of policies and procedures and even working with development and engineering teams to drive application security. Requirements: Proven experience as an Information/Cyber Security Engineer Extensive and broad cyber and information security (InfoSec) experience Knowledge of concepts such as ethical hacking, network security, penetration testing and cryptography etc Good understanding of Windows, Cloud and IT infrastructure Excellent communication skills More ❯

IT Security Engineer- £70K Our client is a leading London professional services and law firm, they work with client in technology, financial services, pharma and ecommerce around the world. Offer great remote/hybrid flexible working, they’re looking for an experienced InfoSec/Cyber Security Engineer to join them. You’ll work directly with the CSO and … SOC team to create and deliver the security strategy, information security framework and risk mitigation activity for the company. You’ll have the chance to be involved in everything from security assessments and threat modelling to triage of security events, ownership of policies and procedures and even working with development and engineering teams to drive application security. Requirements: Proven experience as an Information/Cyber Security Engineer Extensive and broad cyber and information security (InfoSec) experience Knowledge of concepts such as ethical hacking, network security, penetration testing and cryptography etc Good understanding of Windows, Cloud and IT infrastructure Excellent communication skills More ❯

About the Team Security is at the foundation of OpenAI's mission to ensure that artificial general intelligence benefits all of humanity. The Security team protects OpenAI's technology, people, and products. We are technical in what we build but are operational in how we do our work, and are committed to supporting all products and research at … OpenAI. Our Security team tenets include: prioritizing for impact, enabling researchers, preparing for future transformative technologies, and engaging a robust security culture. About the Role As a Security Engineer you will join our OpenAI engineers and researchers in building, operating and securing transformational AI technologies. This role will focus on all aspects of Detection & Response, including infrastructure … and operations, and will also contribute to the Security team as a strong generalist. In this role, you will: Drive projects in all major security verticals including: AppSec, InfraSec, OffSec and Detection and Response Innovate to solve novel security problems Collaborate on cutting-edge AI research, and use AI to improve OpenAI's Security posture This More ❯

Internal Pentester to join an international client secure their networks. This critical role, based in London (2-3 days per week), requires deep expertise in conducting manual and automated security assessments across networks, applications, cloud platforms, and infrastructure. You will identify and exploit vulnerabilities, simulate real-world attacks, and deliver actionable remediation guidance to strengthen defenses. Key Responsibilities: Plan … and execute penetration tests - perform manual and automated testing across applications, APIs, internal/external networks, cloud environments, and Active Directory. Identify, exploit, and validate vulnerabilities - uncover security flaws such as insecure authentication, authorization bypasses, misconfigurations, and privilege escalation paths. Simulate real-world attacks - use adversary techniques and offensive tools to test the resilience of networks, systems, and security controls. Develop detailed reports - produce both technical and executive-level documentation outlining findings, risk impact, and remediation steps What You Will Ideally Bring: Application security knowledge - strong grasp of OWASP Top 10 and API security issues.Contract Details: Hands-on pentesting experience - 3-7+ years in penetration testing, red teaming, or offensive security across networks More ❯

Internal Pentester to join an international client secure their networks. This critical role, based in London (2-3 days per week), requires deep expertise in conducting manual and automated security assessments across networks, applications, cloud platforms, and infrastructure. You will identify and exploit vulnerabilities, simulate real-world attacks, and deliver actionable remediation guidance to strengthen defenses. Key Responsibilities: Plan … and execute penetration tests - perform manual and automated testing across applications, APIs, internal/external networks, cloud environments, and Active Directory. Identify, exploit, and validate vulnerabilities - uncover security flaws such as insecure authentication, authorization bypasses, misconfigurations, and privilege escalation paths. Simulate real-world attacks - use adversary techniques and offensive tools to test the resilience of networks, systems, and security controls. Develop detailed reports - produce both technical and executive-level documentation outlining findings, risk impact, and remediation steps What You Will Ideally Bring: Application security knowledge - strong grasp of OWASP Top 10 and API security issues.Contract Details: Hands-on pentesting experience - 3-7+ years in penetration testing, red teaming, or offensive security across networks More ❯

/50 HYBRID ROLE BASED IN OXFORD/READING OFFICE- 3-MONTH CONTRACT SKILLS - Strong experience with cyber frameworks, e.g. Cyber Essentials, GDPR, ISO27001 and NIST.- Knowledge of enterprise security design alongside MS Security stack, AWS, MS Azure, MS Linux and ERP Solutions.- Technical understanding of Cloud, Data Analytics, Security Technologies and Application Security. RESPONSIBILITIES - Lead … the Information Security programme and manage Information Security team.- Develop and maintain security policies, standards, procedures and guidance.- Provide strategic threat management, including risk assessments, incident management and internal reporting. What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or More ❯

of applications to modern Python frameworks Development of automated unit and component tests Contribution to Camlin’s software development strategies Participation in Agile Scrum and design meetings Governance of application CI/CD pipelines Design and development of web application security Technical mentorship of less experienced engineers What you'll need: At least 6 years of experience … designing and implementing REST APIs (Fast API) Experience working with SQL databases Practical knowledge of Linux (CLI, bash) Experience mentoring and leading engineering team Practical knowledge of modern web application deployment infrastructures Fluency in English, written and verbal Strong knowledge of SDLC Nice to have but not essential: Bachelor's degree in computer software engineering or equivalent Experience building More ❯