22 of 22 Senior Security Engineer Jobs in the South East

Senior Application Security Engineer Hybrid From Any UK Hub (London, Swindon, Manchester, Glasgow, Belfast) Salary – Up to £100,000 Depending on experience + Discretionary Bonus + Additional Corporate Benefits Package The Client: A leading financial services firm requires a senior application security engineer! The … Role: As a Senior Application Security Engineer here, you'll sit within CTO, assisting a wide range of delivery teams in engineering secure solutions and protecting our member's money and data. As a senior security engineer, you will work cross-functionally to assess … risk and help deliver countermeasures that protect our member's data. You will work will engineering teams to create solutions that solve or remediate security problems. This will involve a range of activities, including (but not limited to) threat modelling, selection and configuration of DevSecOps tools, high-level and More ❯

Senior Cyber Security Engineer – Investment Management 💰 £££ Competitive Day Rate | Contract with Perm Option 📍 Central London | Hybrid Working ✅ Senior-level Cyber Security Engineer ✅ Core security disciplines – infrastructure, cloud, identity, threat, risk ✅ Initial contract with an option to convert to permanent employment You'll be … working for a well-established investment management firm as a Senior Cyber Security Engineer , helping to shape and secure their growing tech environment. This is a hands-on, high-trust role where your broad security knowledge will directly impact infrastructure, cloud, data, and application integrity. The … Role: Deliver security engineering across network, cloud, and endpoint infrastructure Support detection, response, and threat modelling Help mature identity & access management controls Lead on vulnerability remediation and risk assessments Act as SME in cross-functional projects involving security tooling & design What You Need: ✔ Proven experience in senior More ❯

integrity are components of a work ethic taken very seriously since the company was founded in 1959. Tradition is currently seeking to appoint a Senior IT Security Engineer to be based in our London office. Main responsibilities within the Senior IT Security Engineer position … include: Support Information Security risk management, compliance activities, and governance initiatives. Collaborate with stakeholders to identify, document, and mitigate security risks through effective controls. Work with key software and service vendors to manage security products and solutions. Lead and support security incident response, including investigation, containment … and remediation. Deploy, manage, and continuously improve security tools, including vulnerability management, identity management, and attack surface monitoring. Analyse emerging threats and vulnerabilities, leveraging threat intelligence to proactively mitigate risks Perform proactive threat hunting, research, and analysis, delivering actionable intelligence to IT and security teams Perform security More ❯

Senior Security Engineer 6 month contract Reading/Havant 1 day per week in the offices Our client is looking for a Security Engineer, to provide SME input to in-flight IT and Business projects to embed security requirements, manage risks and enable security by design. RESPONSIBILITIES • Liaise with project stakeholders as an Information Security SME throughout the project lifecycle, including representing the Information Security Advisory team at stage gate meetings. • Perform security risk assessments against projects to determine control requirements and track and report on security requirements levied … on projects/initiatives through to successful implementation • Develop security-related project artefacts/patterns to support consistent security input to projects. • Perform controls validation to ensure that any initial requirements were implemented as expected. • Identify and document any residual risks and engage with the Information Security More ❯

As a Senior Cyber Security Engineer , you will play a key role in supporting the design, implementation, and maintenance of Cyber Security Engineering solutions, controls, and processes across Thames Water's IT and OT environments. You will be responsible for supporting cyber security platform administration … enhancing our security posture, and ensuring that new capabilities are securely deployed in alignment with business objectives. This includes collaborating with stakeholders, supporting compliance efforts, and helping to drive proactive cyber risk reduction. This role requires a deep understanding of security engineering concepts, infrastructure technologies, and best practices. … a solid grasp of IT and OT systems, and a passion for continuous improvement in cybersecurity operations. What you'll be doing as a Senior Cyber Security Engineer Support the creation of secure asset builds and system hardening capabilities across end-user computing and server environments. Collaborate More ❯

Senior Cloud & Apps Security Engineer - £80,000 - £110,000 + Bonus + Benefits London/Remote AWS, Azure, Kubernetes, Service Mesh, API gateways, and API security, Python, JavaScript, GoLang, Terraform, CloudFormation (AWS), and Azure Resource Manager (ARM) templates. Are you passionate about cloud security and … eager to engineer robust security solutions within AWS and Azure environments? We are seeking Senior Cloud & Application Security Engineers to help our client define and implement its cloud security strategy. If you're an experienced Security Engineering professional excited to work with cutting-edge … technology and collaborate with diverse teams, we want to hear from you! Key Skills: Strong understanding of cloud and application security concepts, including secure coding practices, threat modeling, vulnerability management, and access control mechanisms. Experience with AWS, Azure, Kubernetes, Service Mesh, API gateways, and API security (authentication and More ❯

Cyber Security Engineer Senior Location : Ringwood, Hampshire, + Hybrid Home Working (2 days a week Tues & Thurs in the office post-probation) Salary : Up to £45,000.00 Hours : 37.5 hours per week Contract : Full-time, Permanent Join us as our Cyber Security Engineer Senior … role, you will undertake project and support activities, providing assurance, technical expertise, and guidance as needed. You will input into Information Governance and Cyber security-related calls and incidents, supporting the swift and effective response to mitigate risks and minimise impact. You will engage in activities to continuously improve … our cyber security posture, colleague awareness, and training, as well as helping towards maintaining ISO, CE+ and other relevant standards and accreditations. Additionally, you will support the security and governance functions of the business, working closely with the Technical Director and the wider team. The Skills You Will More ❯

Cyber Security Engineer - Senior Location : Ringwood, Hampshire, + Hybrid Home Working (2 days a week Tues & Thurs in the office post-probation) Salary : Up to £45,000.00 Hours : 37.5 hours per week Contract : Full-time, Permanent Join our client as their Cyber Security Engineer - Senior … role, you will undertake project and support activities, providing assurance, technical expertise, and guidance as needed. You will input into Information Governance and Cyber security-related calls and incidents, supporting the swift and effective response to mitigate risks and minimise impact. You will engage in activities to continuously improve … their cyber security posture, colleague awareness, and training, as well as helping towards maintaining ISO, CE+ and other relevant standards and accreditations. Additionally, you will support the security and governance functions of the business, working closely with the Technical Director and the wider team. The Skills You Will More ❯

Senior Product Security Engineer Location: London Salary: £200,000+ A leading global quantitative investment firm is seeking a Senior Product Security Engineer to strengthen the security of its trading systems, cloud infrastructure, and business applications. This is a hands-on, high-impact role … working across a modern tech stack in a fast-paced environment. Key Responsibilities Implement and maintain security controls across low-latency systems and multi-cloud platforms (AWS, Azure, Alibaba Cloud) Collaborate with engineering teams to integrate secure coding practices into the SDLC Conduct threat modeling, vulnerability assessments, and code … reviews Automate security processes through CI/CD integration using SAST, DAST, and related tools Assess third-party vendors and enforce security standards Mentor teams on security architecture and best practices What We’re Looking For Experience in product or application security roles Strong development background More ❯

Senior IT Security Engineer - Remote (Global) - Competitive Salary + Token Package Plexus has partnered with a well-funded, innovative startup (backed by nearly $100M ) that's redefining security for Proof-of-Stake blockchains and pioneering Bitcoin staking solutions. They're seeking a talented Senior IT … Security Engineer to play a key role in building the next generation of blockchain security. Responsibilities: Administer cloud infrastructure (AWS, GCP, Azure), Google Workspace, SSO, and SaaS apps. Evaluate, integrate, and manage security tools (e.g., SIEM, endpoint protection). Oversee IT/security vendors and ensure … compliance. Support security incident response and investigations. Requirements: IT admin experience, ideally in a startup with a global remote team. Hands-on with MDM, Google Workspace, SSO, and cloud SaaS, focused on security and global access. Good understanding of blockchain security risks. Proficient in scripting (Python, Bash More ❯

Senior Network Security Engineer Leading global manufacturing company is looking for a Senior Network Security Engineer to join their growing Network Security Engineering team. The successful candidate will design and implement network security solutions connecting on-premises and public cloud environments, with … very technical role and will play a key part in securing the network infrastructure. London 5 DAYS A WEEK. Responsibilities: Design and deploy network security solutions across cloud and on-premises environments. routing and switching protocols network performance. Analyze operational needs and develop innovative solutions to strengthen network security. … Required: Hands-on experience within enterprise network security solutions. Advanced knowledge of routing and switching protocols. Deep understanding of firewalls. More ❯

Senior Product Security Engineer Compensation: Up to £250k TC Location: London WFH: 4 days in office, 1 from home I'm currently working with one of the most successful and modern Quant Trading firms in London. Being a top 5 performer across various markets and boasting yearly … competitors. Their modern and innovative approach means no legacy work to deal with and state of the art tech. They're looking for a Senior Product Security Engineer to develop and implement security controls across all of their trading infrastructure and cloud services. This a widely … with various engineering and product teams on greenfield initiatives to secure large scale, low latency systems and cloud platforms. Requirements 6+ years in product security Strong object orientated programming experience across languages such as Python, C++, Java, Go or Rust Extensive cloud experience Knowledge of threat modelling and risk More ❯

Partner Job CBSbutler Holdings Limited trading as CBSbutler Location: Preston or Frimley (Hybrid) Salary: £50,000 - £55,000 + 10% bonus + excellent benefits Security Clearance: Must be eligible for Security Clearance A global Defence & Security leader is looking to add to their successful and talented team. … additional requirements that sit within Enterprise IT, providing enterprise IT services across the UK businesses and internationally. You will participate in the creation of security solutions to provide enterprise security services and maintain, develop, and communicate their associated roadmaps and standards through the full lifecycle of the service. … This could also offer a natural progression route and the opportunity to develop further. What you'll be doing: Senior Cyber Security Engineer Support the review of firewall rule requests acting as a Security approver Provide reviews of Security feature configurations on the firewalls Maintenance More ❯

of the green revolution, where every line of code contributes to a cleaner, brighter future. Key Responsibilities: Liaise with project stakeholders as an Information Security SME throughout the project lifecycle, including representing the Information Security Advisory team at stage gate meetings. Perform security risk assessments against projects … to determine control requirements and track and report on security requirements levied on projects/initiatives through to successful implementation Develop security-related project artefacts/patterns to support consistent security input to projects. Perform controls validation to ensure that any initial requirements were implemented as expected. … Identify and document any residual risks and engage with the Information Security Risk team to ensure these are tracked and managed. Work collaboratively with the wider Information Security function, Enterprise Architecture & Service Transition team to ensure a consistent approach to embedding security into projects. What do you More ❯

of the green revolution, where every line of code contributes to a cleaner, brighter future. Key Responsibilities: * Liaise with project stakeholders as an Information Security SME throughout the project lifecycle, including representing the Information Security Advisory team at stage gate meetings. * Perform security risk assessments against projects … to determine control requirements and track and report on security requirements levied on projects/initiatives through to successful implementation * Develop security-related project artefacts/patterns to support consistent security input to projects. * Perform controls validation to ensure that any initial requirements were implemented as expected. … Identify and document any residual risks and engage with the Information Security Risk team to ensure these are tracked and managed. * Work collaboratively with the wider Information Security function, Enterprise Architecture & Service Transition team to ensure a consistent approach to embedding security into projects. What do you More ❯

Join us as a Senior Security Engineer for CIAM at Barclays, where you will bring to life a new digital platform capability, transforming and modernising our digital estate to build a market-leading digital offering with customer experience at its heart. This is an exciting and key … is at the heart of what we do. To be successful in this role you should have: Experience across configuration and integration with Hardware Security Module (HSM) and AWS Secrets Manager (ASM) tooling, certificate lifecycle management, e.g. rotation, revocation, and in automating security workflows Experience using GitLab CI …/CD pipelines, AWS CLI or Chef. Strong experience with Cloud Security expertise across the following areas: AWS security controls, policies and automation, CLI tools, role based and attribute-based access controls, cryptographic protocols and secure key lifecycle management, advanced threat modelling, SOC operations, securing microservices and APIs More ❯

the core infrastructure that enables institutions to navigate and thrive in the crypto economy. As they continue to scale, the firm is seeking a Senior Product Security Engineer to help shape and secure the backbone of their platform. This is a high-impact role for someone who … blends deep development expertise with strong security instincts-someone who can partner across engineering, product, and infrastructure teams to embed security into everything they build. Responsibilities: Lead secure architecture and design reviews for critical products and digital finance infrastructure Conduct threat modeling, risk assessments, and security controls … reviews across trading, custody, and DeFi platforms Build and implement security test plans and pipelines using modern tools (SAST, DAST, SCA, IaC scanning) Drive secure coding standards and perform hands-on code reviews for high-assurance systems Design and operationalize core security features: authentication, authorization, TLS, PKI, and More ❯

Network Security Engineer – Peterborough (Hybrid) - £75,000 - £100,000 + Bonus + Benefits We’re looking for a skilled Network Engineer to join our clients dynamic team. In this role, you’ll design, implement, and maintain critical networking infrastructure while driving automation and efficiency. Key Responsibilities: Oversee … the design, implementation, and maintenance of Cisco ACI infrastructure. Develop automation solutions for network tasks using Python, Ansible, and Terraform. Engineer and support enterprise-grade network systems, including Cisco routers, Nexus data centre switches, and wireless LAN controllers. Configure and manage Palo Alto firewalls, ensuring adherence to robust security … call support. What You Bring: Extensive experience with Cisco networking, including routers, switches, and wireless infrastructure. Deep understanding of Palo Alto firewalls, Panorama, and security tools such as Cisco ISE. Hands-on knowledge of F5 Big-IP, routing protocols (BGP, OSPF), and network monitoring with SolarWinds. Strong familiarity with More ❯

Senior Cyber Security & Network Project Engineer Location: Brighton/London/South East/Hybrid Package: £70-100K + Pack Type: Full-time Award-winning MSP We're working with a highly respected, independent tech firm that s redefining what great looks like in cybersecurity and … a track record of delivering some of the most complex infrastructure projects in the UK and Europe, they re now looking to grow their senior engineering team with someone who can lead from the front technically and strategically. This is a fantastic opportunity for an experienced Cyber Security & Network Engineer who thrives in a hands-on role, enjoys client engagement, and wants to shape the future of secure, intelligent networks. The Role You ll work closely with the presales, delivery, and solutions teams to design and implement market-leading network and security solutions. This is More ❯

Senior Cyber Security & Network Project Engineer Location: Brighton/London/South East/Hybrid Package: £70-100K + Pack Type: Full-time | Award-winning MSP We're working with a highly respected, independent tech firm that’s redefining what great looks like in cybersecurity and … a track record of delivering some of the most complex infrastructure projects in the UK and Europe, they’re now looking to grow their senior engineering team with someone who can lead from the front — technically and strategically. This is a fantastic opportunity for an experienced Cyber Security & Network Engineer who thrives in a hands-on role, enjoys client engagement, and wants to shape the future of secure, intelligent networks. The Role You’ll work closely with the presales, delivery, and solutions teams to design and implement market-leading network and security solutions. This is More ❯

About the Role Keysight is looking to hire a senior security software engineer to develop automated program analysis and fuzz testing capabilities for our security assessment products. The successful candidate will be key in designing and implementing novel and scalable tools for automated software composition analysis … solutions to enable automated software composition analysis and identification of vulnerabilities Developing and maintaining software composition analysis tools Performing research in embedded device firmware security and compose articles and papers for publication Qualifications Required Skills: Master's degree in computer science, Mathematics, or Cyber Security OR equivalent practical More ❯

Network Security Engineer - Peterborough (Hybrid) - £75,000 - £100,000 + Bonus + Benefits We're seeking a skilled Network Engineer to join our client's dynamic team. In this role, you will design, implement, and maintain critical networking infrastructure while driving automation and efficiency. Key Responsibilities: Oversee … the design, implementation, and maintenance of Cisco ACI infrastructure. Develop automation solutions for network tasks using Python, Ansible, and Terraform. Engineer and support enterprise-grade network systems, including Cisco routers, Nexus data centre switches, and wireless LAN controllers. Configure and manage Palo Alto firewalls, ensuring adherence to security … call support. What You Bring: Extensive experience with Cisco networking, including routers, switches, and wireless infrastructure. Deep understanding of Palo Alto firewalls, Panorama, and security tools such as Cisco ISE. Hands-on knowledge of F5 Big-IP, routing protocols (BGP, OSPF), and network monitoring with SolarWinds. Strong familiarity with More ❯