13 of 13 Senior Security Engineer Jobs in the South East

Senior Application Security Engineer Location: Hybrid working or homeworking with view to attend office occasionally Salary: £60,000 – £70,000 per annum Bonus: Discretionary bonus of up to 10% Are you passionate about securing modern applications and cloud environments? We’re looking for a Senior Application Security Engineer to join my client's growing … team and play a key role in shaping the security posture of our organisation. About the Role As a Senior Application Security Engineer, you’ll bring deep expertise in application security testing, cloud security, and secure development practices. You’ll work closely with IT, development, and project teams to embed security into every … stage of the software development lifecycle and drive a risk-based approach to vulnerability management. Key Responsibilities Lead application security initiatives across cloud-native and enterprise environments. Promote secure design principles, threat modelling, and best practices across teams. Own and evolve the technical vulnerability management programme. Implement and support security controls, particularly within Azure cloud environments. Evaluate and More ❯

Senior Security Engineer £80,000 + Bonus + Benefits + Training Hybrid (Portsmouth, UK) Company & Role This is an opportunity to join a fast growing, people first global service provider that is redefining what excellence in cyber defence looks like. With over $1B in global revenue, this organisation delivers end to end IT outsourcing and managed services … to customers across enterprise, public sector and fast growing scale ups. Its Security Practice protects clients through capabilities including Managed Detection and Response (MDR), Threat Hunting, Vulnerability Management, Penetration Testing and Incident Response, supported by a consulting led Security Advisory practice. As a Senior Security Engineer, you will be responsible for designing, implementing and maintaining … the tools, platforms and integrations that power the company’s Security Operations Centre and Cyber Defence services. This role blends hands on technical engineering with solution design and automation, ideal for someone who thrives on solving complex problems, improving processes and enabling analysts to detect and respond faster. Why This Role Stands Out • Join a $1B global IT and More ❯

Senior Security Engineer – Detection & Automation Here’s a great opportunity for a hands-on Senior Security Engineer who enjoys building, optimising, and automating SOC infrastructure. This role sits within a growing Cyber Defence operation where you’ll help design and maintain the platforms behind SIEM, EDR, SOAR, and threat intelligence tooling, improving detection coverage … and enabling analysts to respond faster. Key responsibilities: Engineer and maintain SIEM, EDR, SOAR, and logging platforms. Develop automation and integrations using scripting or API connections. Tune detection use cases and improve visibility across cloud/on-prem environments. Support client onboarding and configuration alignment. Mentor junior engineers and analysts. You’ll bring: 3–5 years’ experience in SOC … or security engineering. Strong knowledge of platforms such as Sentinel, Splunk, Defender, or Elastic. Scripting/automation ability (PowerShell, KQL, Python, etc.). Understanding of Azure/AWS cloud and network fundamentals. Desirable: Experience with SOAR tools or Infrastructure-as-Code (Terraform, Bicep, ARM). Knowledge of MITRE ATT&CK mapping or threat detection frameworks. What’s in it More ❯

A quick look at the role The Security Engineer will be responsible for monitoring our organisation's systems and networks. You will use reports and measures to identify and mitigate security risks, implement security responses, and monitor for potential threats. This is a hybrid role with a minimum of 2 days a week in the office. … Your core responsibilities Strategic design of security protocols and policies. Implement, review and maintain governance of IT security policies and procedures. Act as an ambassador as the Security lead within the business aiming to foster a secure culture. Oversee daily security operations to ensure prompt resolution of security incidents and supporting various security projects. … Take ownership and accountability or the Security function delivery of services to the business. Conduct regular system tests to ensure the effectiveness of security measures in line with industry standards. Monitor our networks and systems for security breaches or intrusions. Investigate security breaches and other cybersecurity incidents. Install security measures and operate software to protect More ❯

Portsmouth - hybrid (2-3 days on-site per week) Permanent Up to £78,500 + bonus This is a prime opportunity to design and engineer the core platforms behind a rapidly growing Security Operations Centre (SOC), blending hands-on technical work with automation and solution design. You’ll collaborate with analysts, architects, and customers to build reliable, scalable … systems that accelerate threat detection and response, all in a collaborative culture that invests in your growth, wellbeing, and career progression. Job Title: Senior Security Engineer Job Type: Permanent Salary: Up to £78,500 (DOE) + Bonus Working arrangement: Hybrid Office Location: Portsmouth As a Senior Security Engineer, you will: Design, deploy, and maintain … intelligence, and logging infrastructure). Develop and optimise detection use cases, correlation rules, and analytics content. Build and maintain automation workflows and integrations using automation platforms or custom scripting. Engineer secure log ingestion pipelines across hybrid cloud and on-prem environments. Support client onboarding, threat hunting, detection engineering, and process improvements. Mentor junior engineers and maintain documentation, diagrams, and More ❯

Job Title: Senior Network Security Engineer Location: Kidlington or Southampton Contract Type: Temporary Daily Rate: £450 - outside IR35 Contract Length: 16 months Join Our Team!Are you an experienced Network Security Engineer ready to make an impact in the public services sector? We are looking for talented individuals to join our client Thames Valley Police … at either their offices in Kidlington or the Hampshire Police Offices in Southampton. What You'll Do:As a Senior Network Security Engineer, you will play a crucial role in maintaining and enhancing our wide area and local area communications network infrastructure. Your expertise will ensure the security and efficiency of our network operations. Key Responsibilities … junior network engineers, fostering a culture of best practises within the technical team. What We're Looking For: Recent experience (within last two years) of a Network Administrator/Engineer role working with Cisco routers and switches with a minimum of five years experience within network engineering roles Able to articulate technical designs and principles to a non-technical More ❯

Job Title: Senior Network Security Engineer Location: Kidlington or Southampton Contract Type: Temporary Daily Rate: £450 - outside IR35 Contract Length: 16 months Join Our Team! Are you an experienced Network Security Engineer ready to make an impact in the public services sector? We are looking for talented individuals to join our client Thames Valley Police … at either their offices in Kidlington or the Hampshire Police Offices in Southampton. What You'll Do: As a Senior Network Security Engineer, you will play a crucial role in maintaining and enhancing our wide area and local area communications network infrastructure. Your expertise will ensure the security and efficiency of our network operations. Key Responsibilities … junior network engineers, fostering a culture of best practises within the technical team. What We're Looking For: Recent experience (within last two years) of a Network Administrator/Engineer role working with Cisco routers and switches with a minimum of five years experience within network engineering roles Able to articulate technical designs and principles to a non-technical More ❯

Job Title: Senior Network Security Engineer Location: Kidlington or Southampton Contract Type: Temporary Daily Rate: £450 - outside IR35 Contract Length: 16 months Join Our Team!Are you an experienced Network Security Engineer ready to make an impact in the public services sector? We are looking for talented individuals to join our client Thames Valley Police … at either their offices in Kidlington or the Hampshire Police Offices in Southampton. What You'll Do:As a Senior Network Security Engineer, you will play a crucial role in maintaining and enhancing our wide area and local area communications network infrastructure. Your expertise will ensure the security and efficiency of our network operations. Key Responsibilities … junior network engineers, fostering a culture of best practises within the technical team. What We're Looking For: Recent experience (within last two years) of a Network Administrator/Engineer role working with Cisco routers and switches with a minimum of five years experience within network engineering roles Able to articulate technical designs and principles to a non-technical More ❯

Senior Security Engineering Consultant £85,000 package | Hybrid (2 days per week onsite + UK client visits) | 🇬🇧 UK-based Are you the kind of security engineer who builds things, not just maintains them? The kind who loves automating, scripting, integrating APIs, and turning chaos into clean, scalable systems? If so, this is your chance to join … one of the UK's fastest-growing Security Operations Engineering teams - a small, elite group known for delivering real impact to enterprise SOCs across the country. What's in it for you Ownership & Autonomy: You won't just follow a process, you'll create it. The team's culture is built on innovation and trust. Cutting-Edge Projects: From … will directly shape how customers run their SOCs. Serious Tech Exposure: Get hands-on with SOAR (XSOAR, Logic Apps, Siemplify), SIEM (Sentinel, Chronicle), Python/PowerShell scripting, and cloud security tooling across Azure, AWS, and GCP. High Performance Environment: Join a 9-person team that's currently the most profitable division in the business - engineers who love to solve More ❯

Senior Security Engineering Consultant £85,000 package | Hybrid (2 days per week onsite + UK client visits) | ???? UK-based Are you the kind of security engineer who builds things, not just maintains them? The kind who loves automating, scripting, integrating APIs, and turning chaos into clean, scalable systems? If so, this is your chance to join … one of the UK's fastest-growing Security Operations En... More ❯

Job Title: Senior Application Security EngineerSalary: £70,000Location: Reading/remote About the Organisation Join a fast-growing UK technology and consulting firm that's investing heavily in cutting-edge cyber security. With a strong focus on innovation, collaboration, and professional development, this company empowers its people to shape the future of secure digital transformation across a wide … ll be part of a business that values expertise, agility, and doing the right thing - where everyone has the opportunity to make a genuine impact. About the Role The Senior Application Security Engineer will play a key role in protecting the organisation's infrastructure, cloud platforms, and applications. Working within a highly technical and collaborative cyber team … supported by a 24/7 external SOC - you'll research, test, and implement next-generation security solutions to safeguard data and systems. This role offers the chance to lead on application and cloud security initiatives, influence secure design standards, and mentor colleagues in best practices. Key Responsibilities Lead application and cloud security initiatives, ensuring systems and More ❯

SIEM Engineer Contract - Inside IR35 Duration: March 2026 Reading (Hybrid) Are you a seasoned SIEM (Security Information and Event Monitoring) professional looking to take your career to new heights? If so, this could be the perfect opportunity for you! The company is seeking a talented SIEM Engineer to join their dynamic team and play a pivotal role … in maintaining and enhancing their security monitoring platform. As the SIEM Engineer, you will be responsible for ensuring the optimal performance, scalability, and integration of the company's SIEM platform. This includes onboarding log sources, developing analytical rules, creating automation for triage and remediation, and integrating with other IT and Operational Technology platforms. You will collaborate with the … wider Threat Detection and Response team to ensure the SIEM platform meets their day-to-day needs and provide support during incidents as necessary. Key Responsibilities of the SIEM Engineer Develop and maintain the security monitoring platform, ensuring it meets the company's evolving security requirements. Participate in infrastructure projects to plan and implement solutions for security More ❯

Come make an impact on the communities we serve as you help us advance health equity on a global scale. Join us to start Caring. Connecting. Growing together. A Security Logging Engineer partners with ESRO Cyber Defense Teams to build, customize and distribute Security Log Solutions for on-prem and in the cloud systems. Work alongside the … top Google SecOps engineers in the company to ensure our pipelines feeding SecOps are as efficient, reliable and cost effective as possible. ESRO Security Logging Team and ESRO Cyber-Defense teams both utilize the same workload software which produces a seamless workflow, a quicker time-to-deliver, and partnerships that offer focused value. We work with platform owners across … the enterprise to provide support and education around the security events their platforms produce. We deliver world-class event pipelines tailored for each owner's platform. Careers with Optum offer flexible work arrangements and individuals who live and work in the Republic of Ireland will have the opportunity to split their monthly work hours between our London office and More ❯