16 of 16 Permanent Senior Security Engineer Jobs in the City of London

Job Title: Senior Security Engineer Manager: CISO Department: Cyber Security Division: Enterprise Information Technology Services Location: London, Hybrid Main Purpose: The MDU is undertaking an exciting digital transformation programme and to support this the Cyber Security Team is looking to appoint a Senior Security Engineer. Working closely with delivery teams covering strategic and … non-strategic change this role will provide subject matter expertise to keep the MDU, its data and, its member safe from cyber security threats. The Senior Security Engineer will be responsible for the delivery of security technologies in a range of projects and will therefore: Have a strong cyber security engineering or professional services … background with experience of delivering both large-scale and small-scale projects to a high quality in a fast-paced environment. Have a good practical knowledge of both traditional security technologies and modern security tooling to allow support of both the existing and new environments during the digital transformation. Have a proven track record of working in cross More ❯

An impressive multinational Telecoms business is looking for a Senior Security Engineer to join its team based in London. Please note, this role is hybrid so you will be required to work in the office 3 days per week. As a Senior Network Security Engineer, you will be responsible for designing, implementing, and managing … security solutions that protect a large and high-profile network infrastructure. You will work closely with the team to proactively improve network security (both on-prem and cloud), detect threats and maintain a strong systems defence posture. In order to be suitable for this role you must have proven experience of designing, configuring and maintaining network security solutions. You will be a hands-on technical expert with deep knowledge of network security, firewalls, and cloud security (AWS/Azure). CISSP and/or CCNP Security accreditation are expected, while previous experience in the Telco sector would be advantageous to your application. This is an outstanding opportunity for an accomplished Network Security More ❯

A great opportunity for a Security Engineer to join growing Financial Services Firm in London in a Hybrid working role. We are a Commodities Focussed Financial Services Firm based in London with Offices in US and Asia. We are now seeking a Senior Security Engineer to join our London team. Reporting to the IT Security Officer, you will work alongside the IT Security Engineer as part of a 3-man IT Security team. As the Senior Security Engineer, you will implement and maintain robust security systems and protocols across the our IT infrastructure. You will conduct risk assessments and vulnerability scans, mitigate vulnerabilities identified in penetration testing … and implement preventative measures to protect against cyber threats. You will monitor the security infrastructure and detect and respond to potential threats. You will help mentor and develop the IT security engineer and collaborate with the IT team to ensure compliance with security standards and best practices; you will essentially be a key technical leader in More ❯

Senior Security Engineer – £75,000 – Hybrid Overview I am currently recruiting for a Senior Security Engineer to join a global digital marketing and technology agency specialised in online gaming, where you’ll be instrumental in shaping and securing the organisation’s digital landscape. If you thrive in a dynamic, high-performance environment, this role … offers the opportunity to lead impactful security initiatives across a complex, fast-evolving business. Role and Responsibilities Lead design, implementation and monitoring of robust security controls Oversee security architecture and operational tools across on-prem and cloud environments Manage incident response, threat investigation, and vulnerability mitigation Conduct risk assessments, audits, and third-party security reviews Collaborate … with teams to prioritise remediation, security best practices, and awareness Provide expert technical guidance and detailed reporting on risks and improvement plans Essential Skills and Experience Strong communication and cross-team collaboration abilities Expertise in security operations, architecture, and engineering Deep technical knowledge of vulnerabilities, exploits, IDS/IPS, DLP, and firewalls Experience with cloud and hybrid security More ❯

Senior IT Security Engineer London (Hybrid) £80,000 - £85,000 DOE + Bonus + Benefits Join a leading London-based broker and market maker with offices worldwide! We are looking for a Senior IT Security Engineer to play a vital role in safeguarding critical infrastructure and data, working as part of a close-knit … expert IT Security team. The Role You will be instrumental in developing, implementing, and maintaining security solutions that protect systems from ever-evolving cyber threats. You'll serve as the technical lead, drive key security initiatives, and play a pivotal role in mentoring junior team members. Key Responsibilities Monitor, manage, and respond to threats via SIEM, SOAR … and EDR platforms Conduct vulnerability scans and support remediation and risk mitigation efforts Oversee WAF, DDoS, VPN, and perimeter firewalls Manage Email and Web Security Gateways Administer MFA, SSO, PAM, MDM/MAM, and Conditional Access systems Maintain security certificates, encryption keys, and IDS/IPS systems Deliver cybersecurity awareness training and lead ad-hoc security projects More ❯

With significant executive support and sponsorship, our financial services client has launched a multi-year project to redevelop and modernise the full technology and security stack. To support this and maintain risk exposure, they are making a significant investment in the Information Security team, processes, and technology. This is a chance to join a small tight-knit Security … on designs for high scale, leading-edge, and operating in a truly cloud-native fashion, then we want to hear from you! Responsibilities: You will be part of the Security Engineering team - helping design, implement and support key services. We’re a hands-on engineering team. We partner with the broader engineering organisation and also build and support our … own capabilities across IT Security, IAM, SDLC, and Security Architecture practices. Strong hands-on experience working with major cloud solutions (IaaS, PaaS, Event-driven/Serverless, SaaS) AWS and/or Azure. Capable of designing, implementing, and maintaining robust solutions and re-usable patterns that reduce risk across the organisation. Develop policy as code, templates, and modules to 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, CVSS, MITRE More ❯

Senior Cyber Security Engineer - DevSecOps **please note, this role will require relocation to Malaga, Spain** Salary: £80,000-£110,000 Location: Malaga - full relocation packages and assistance are available Hybrid: 2/3 days a week work from home About the Role We are looking for senior cybersecurity engineers to join a growing cybersecurity team based … based in Malaga and this position is hybrid working where you have the option to work from home 2 days a week. Experience with Vulnerability Management, AWS/AWS Security, Networking and DevOps principles are all highly desired. What We’re Looking For Experience with AWS security Experience with Linux Identifying, prioritising and and managing vunerabilities Integrating CI …/CD security pipelines Scripting experience (Python/Bash) Containerised environments What’s next? If this sounds like it could be worth a conversation, and you have experience with some of the above then apply today and we’ll aim to be in touch shorty. More ❯

Job Title: Senior Network Engineer Delivery & Migrations Location: England (Home based with client visits across England). Salary: Up to £55,000 basic salary plus great benefits package Sector: Consultancy/Solution Provider The Company Our client is a professional services consultancy who specialise in providing businesses with software defined solutions, network assurance, network automation and managed support. … of interesting projects in both the public and private sectors. Technology Partners Cisco/Meraki VM Ware Palo Alto Fortinet Juniper Aruba/HPE Microsoft AWS Role Snapshot As Senior Network Security Engineer you be an integral member of the delivery and migrations team. The role will entail assisting with migrations, day-to-day delivery tasks and … step up from a BAU role, with the ambition to widen their remit in projects and delivery. Key Responsibilities Assisting with delivery and migration of network, data centre and security solutions. Provide exceptional customer services. Contribute to knowledge centre and keep documentation up to date. Be willing to work in a vendor agnostic environment and stay up to date More ❯

Role Overview Seeking an experienced Senior Network Engineer with deep expertise in multi-vendor networking and security solutions. Required Skills and Experience Proven expertise in F5 LTM, including load balancing concepts, iRules development, and VIP configuration. Strong background with Fortinet security solutions, especially FortiGate firewall and FortiManager configuration and policy deployment. Hands-on experience with Juniper More ❯

Senior IT Security Engineer - Zero Trust Permanent Salary 60 - 85K plus bonus and benefits On-site - Central London We are an established, global, financial services trading company looking to grow the infrastructure and security of our trading systems. We are working towards ISO27001, NIST and a zero trust architecture. You will be based in the UK … and required onsite at least 4 days per week. Reporting to the Head of Security/Operations. You will be responsible for all aspects of security from managing the SOC through to setting up PIM/PAM etc, establishing frameworks, selecting tools, establishing the zero trust architecture. This position offers a really exciting opportunity for someone with a … strong technical background who is looking to take on a Senior and develop the security systems whilst still being very hands on. Experience required Familiar with NIST, ISO 27001, ITIL Azure - 5 years experience Info Sec (Azure AD, Defender, Sentinel) PIM/PAM Audits and report writing Assessments Vulnerability Management and Pen Testing Zero Trust Architecture Automation (eg More ❯

Job title : Senior Security Engineer Client : World-Leading Hedge Fund Salary : Up to £185,000 (negotiable DOE) + bonus + exceptional benefits Location : London An award-winning Hedge Fund in London is looking for a talented and passionate Senior Security Engineer to join their world-class team. This is the perfect opportunity work in … one of the most talented security teams in the world, whilst taking ownership over highly exciting and mission-critical, greenfield security projects at one of the most successful names in the world of FinTech. You will work with next-gen tech and collaborate with some of the brightest minds in the industry. Desired Experience (full job spec available … Strong experience working in technical security roles Experience in vulnerability assessment, penetration testing, and vulnerability management processes, etc. Familiarity with security incident response procedures. Excellent communication skills and the ability to collaborate with cross-functional teams. Experience with Python scripting Solid experience in GRC Relevant certifications (e.g., CISSP, CISA, CEH) are preferred. Benefits of working there Work amongst More ❯

Senior Security Engineer Salary: £120-140k + 20-40% Bonus Location: London (Hybrid working – 2-3 days in office per week) I’m currently working with one of the most innovative, tech-driven Investment Management firms who are looking to bring in a Senior Security Engineer to work directly alongside their newly appointed … Head of Security Engineering and lead in the build-out of their cloud-native Infrastructure capability . Highly technical position where you will be responsible for not just assessing and threat modelling novel concepts and services to introduce across Security and the wider Tech functions; but leading in the actual design, configuration and implementation. Previous experience in Software … Security/Cloud Security Engineering capacity with the ability to comfortably read, write and script in Python will be essential as an in-depth knowledge of deploying Infrastructure as Code, Containers, CI/CD concepts and policy as code will be a minimum requirement. This is genuinely an incredible opportunity to build something truly innovative, with the backing More ❯

Application Security Expert — London (3 Days in Office) — £100k We’re looking for an experienced Application Security Expert to join our growing team. You’ll be responsible for embedding security best practices across the software development lifecycle, supporting internal engineering teams, and driving the identification and remediation of application security risks. What you’ll do: Provide … guidance on security best practices and compliance. Perform and oversee application security testing, including managing the remediation of identified vulnerabilities. Integrate security testing and tooling into the SDLC and promote secure coding practices. Assess and sign off on application security for new projects and system changes. Collaborate with engineering teams to review design and code for … security vulnerabilities. Monitor and report on application security threats, metrics, and KPIs. Participate in the security incident response team and work closely with the DevSecOps team. What you’ll need: At least 3 years of software engineering experience, with 2+ years focused on application security. In-depth knowledge of application security testing, OWASP, and secure web More ❯

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 detailed security designs. Key Responsibilities: We are seeking a Senior Security Engineer who has experience in the design and implementation of secure software. You should More ❯

Senior Application Security Engineer Salary: up to £100,000 + bonus + benefits Location: UK – Remote This company is scaling its security function and is hiring Senior Application Security Engineers to help embed secure development practices across its engineering teams. You’ll play a hands-on role in identifying and resolving vulnerabilities, integrating security into the SDLC, helping developers create software that is secure, robust, and production-ready by design. You’ll be joining a high-impact security team at a pivotal point in the company’s growth. The environment spans legacy systems, enterprise-grade platforms, and greenfield builds – making it an ideal opportunity for individuals who thrive in varied, fast-paced … environments and enjoys taking ownership of deep technical security challenges. Responsibilities: Proactively identify and fix vulnerabilities across applications, including submitting secure code changes via pull requests. Conduct secure code reviews and provide clear remediation guidance to engineering teams. Embed automated security checks into CI/CD pipelines using existing AppSec tools. Perform threat modelling and contribute to secure More ❯