51 to 75 of 97 Permanent Senior Security Engineer Jobs

Helm Point Solutions is currently looking to hire a Senior Information System Security Engineer (ISSE) on a full-time, permanent basis. This position must be performed 100% onsite in the Columbia, MD area and requires an active TS/SCI w/Polygraph security clearance. Title: Information Systems Security Engineer (ISSE) Location: Linthicum Heights … Clearance Required: TS/SCI with Polygraph Full-Time Fully Funded $130,000-$150,000 (Depending on Experience) Overview: Helm Point Solutions is a woman-owned cybersecurity and physical security firm supporting the nation's most critical systems and infrastructure. We're seeking experienced Information Systems Security Engineers (ISSEs) to support vital intelligence operations that directly impact national … security. You'll join a skilled cybersecurity team responsible for strengthening the systems that protect the country's most sensitive missions-delivering standardized, scalable security solutions across multiple teams and environments. What You'll Do: • Conduct security assessments to identify vulnerabilities and ensure IA compliance. • Define, verify, and validate system security requirements and contribute to the design More ❯

The Opportunity Join us to own security end-to-end, from shaping WAF rules and cloud posture to building secure APIs that millions rely on. We're hiring a Senior Security Engineer to help scale Thrive's security posture as we continue to grow fast and land major enterprise customers. This isn't your typical … security role. We're looking for someone who can code first, audit later & are able to dive into our NodeJS/React stack, help teams ship secure-by-design features, and implement pragmatic security improvements across our application codebase, tooling and cloud infrastructure. You'll work closely with Engineering, Product, and InfoSec to ensure Thrive stays secure by … design, especially as we expand into new markets, industries, and regulatory environments. What You'll Be Doing • Own security across the full stack, from React & NodeJS through to AWS infrastructure, WAFs, and CI/CD. • Build and maintain security-first libraries, tooling and pipelines to support engineering at scale. • Embed secure-by-default practices into our codebase and More ❯

+ performance related bonus + a range of benefits to support your finances, wellbeing and family. Working Pattern: Permanent Full Time Flexible First options available The Senior Security Engineer drives the planning and product management process that provides the models, templates and principles that are used to design, implement, configure and operate cyber security tooling such … as detection and response and identity management and network protection. They drive consistency, leverage and reuse to satisfy the business requirements for security services in an optimum manner. You will - Work closely with enterprise and solution architects and other functional teams to implement adequate security solutions to mitigate identified risks sufficiently, and to meet business goals and regulatory … requirements. - Research, design, advocate and implement new technologies, architectures, and security products that will support security requirements for the enterprise and its customers, business partners and vendors. - Evaluate and develop secure solutions, based on approved security architectures. Analyse business impact and exposure, based on emerging security threats, vulnerabilities and risks. - Develop the business and technical artefacts More ❯

a global football club. We are excited to bring in passionate people who share our vision and drive for success. The Role: We are looking for a highly skilled Senior Information Security Engineer with deep expertise in security tooling across both on-premise and cloud environments. You will lead threat detection, incident response, and security architecture efforts within a hybrid environment. This is a highly technical engineering role, where you'll be hands-on developing and maintaining our security operations tooling. Key Responsibilities: Architect, implement, and maintain advanced security configurations across the Microsoft Defender suite (Cloud, Endpoint and Identity), Microsoft Sentinel, Purview and Azure infrastructure (including RBAC, PIM, NSGs and identity protections … . Lead security incident detection, investigation, and response activities alongside the SOC. Lead the implementation and tuning of Microsoft Sentinel: build KQL queries, implement custom rules, conduct threat hunting, workbooks, design and automate playbooks using Logic Apps. Experience collaborating with development, operations and infrastructure teams in a security context. Experience securing cloud platforms and applications using tooling such More ❯

20+ years! Culture at Intermedia is built on teamwork and transparency. We hold each other accountable and always have each other's back! About the role: Intermedia's Information Security team is seeking a Senior Security Engineer with a strong passion for threat detection, incident response, and security engineering. The ideal candidate thrives in digging … through data to find anomalies, identifying root causes, uncovering malicious activity, recommending corrective actions, and working cross-functionally to drive remediation and strategic improvements. Key Responsibilities Security Monitoring & Incident Response Monitor and triage security alerts from SIEM, EDR, and other tools; escalate and respond as needed. Investigate security incidents, determine root cause, document findings, and develop IOCs … to prevent recurrence. Support escalations from internal employees or customers with security-related concerns. Security Engineering & Tooling Assist with security reviews related to infrastructure and system changes. Build, enhance, and maintain internal security tooling and scripting repositories. Contribute to the development of detection content, alert tuning, and automation pipelines. Strategic & Team Contributions Drive annual security More ❯

who have our backs. If you're ready to see your impact and unlock incredible career growth opportunities, join us, and build real world value. THE WORK: As a Senior Security Engineer, you will help Ripple design and build secure applications and infrastructure at scale. You will work closely with different Engineering teams to ensure we are … building securely to protect our business and our customers. WHAT YOU'LL DO: Be a security advocate and domain expert within the organization and be able to communicate security risk and concepts to both technical and non-technical audiences. Lead initiatives with Engineering teams to optimize threat models and mitigate risks. Encourage a positive security culture across … the Engineering organization. Relentlessly champion for security outcomes on behalf of our customers. Work with other engineering leaders to embed security into day-to-day development processes. Help proactively assess security risk through product deep dives, threat modeling, and design, architecture and implementation reviews Review and improve existing security processes related to product assessments, pen testing More ❯

Security Engineer - SIEM, KQL- sought by investment bank based in London. Inside IR35 - 3 days a week on-site Key Responsibilities SIEM Management & Optimization: Design, implement, and maintain Microsoft Sentinel workspaces, connectors, analytics rules, and playbooks Develop advanced KQL queries for threat hunting and reporting Optimize SIEM performance, cost, and data retention policies Troubleshoot log ingestion and parsing … and custom log parsing Threat Detection & Use Case Development: Develop and refine detection rules based on threat intelligence and attack patterns Continuously improve detection efficacy and reduce false positives Security Monitoring & Incident Response: Monitor systems for anomalies and malicious activity Contribute to threat hunting and incident response playbooks Provide expert guidance on securing applications and infrastructure Security Advisory … Innovation: Support PoCs for new security tools Help define and measure control effectiveness Required Skills & Experience Certifications: AZ-500, SC-200, SC-900, CompTIA Security+, CISSP, GCIA, GCIH, GCFA, CCSP Experience with SOAR playbooks, YARA rules, STIX, and YAML Participation in red/purple team exercises. 3+ years in a Security Engineer, SOC Analyst, or similar role More ❯

Do you have the problem-solving skills to guide and support business units in maintaining a strong, compliant security environment? Are you skilled in leading security implementations and monitoring to defend against emerging threats? About Us LexisNexis, a part of RELX, is a leading global provider of legal, regulatory, and business information. We help customers increase productivity and … making and outcomes. Our 10,500 experts and innovative tools help us shape a better world for our customers and communities. About The Role We are seeking an Information Security Engineer to implement and monitor the security posture of our commercial business units in alignment with the ISO-27001 security framework. The ideal candidate will have … practical experience in various information security responsibilities, such as vulnerability management, infrastructure hardening, security investigation, and security governance. This role requires an inquisitive personality with problem-solving capabilities to guide and support our commercial business unit's security posture in enabling our customer's needs. Responsibilities Review and analyse outputs from Qualys, or equivalent, vulnerability and More ❯

Digital threats are evolving rapidly while our solutions are growing in complexity . We are strengthening our SecOps function within our Software department! Are you an accomplished software engineer passionate about cyber security? Then this might be the opportunity for you. "I can quickly see the impacts of my work on our products. I'm grateful to work … side-by-side with passionate people from a range of disciplines who see security as an enabler for the future of our brand" - Åsmund Sand, Principal Security Engineer About the role We are now looking for a Senior Cloud Security Engineerwho can take ownership in the cyber security area. In the first year you … focus on identity and access management challenges to scale our current CIAM infrastructure, while also implementing new workflows. You will play a key role ensuring our solutions meet the security expectations of our customers, as well as the company's security requirements. At reMarkable, you will be challenged by a diverse technical landscape. We use GCP as our More ❯

Job Overview: As a Network Security Engineering team member, the Senior Network Security Engineer will specialise in firewalls and routing. The ideal candidate is a flexible, self-motivated individual who excels at multitasking and thrives in a fast-paced, challenging environment. This self-starter will bring ingenuity and expertise to design, implement, and maintain secure, scalable … solutions that connect on-premises and public cloud environments. The role emphasizes driving automation through Infrastructure-as-Code (IaC) and GitOps methodologies, ensuring optimal network performance, and integrating robust security measures. Responsibilities: Network Design and Implementation: Design and implement secure, scalable, and high-performing network solutions bridging on-premises and public cloud environments. Leverage routing and switching expertise (e.g. … BGP, OSPF, MPLS) to ensure network performance and reliability across diverse environments. Analyze operational needs and proactively develop creative network solutions to address security challenges. Security and Firewall Management: Manage firewall configurations for the CyberEnergianetwork based on operational requirements. Develop and implement network security tools, produce threat models, and assess risks around existing configurations. Provide subject matter More ❯

Our client is a highly successful, international Bank based in central London. They are looking to expand their cyber security capacity by appointing a Senior IT Security Engineer within the wider IT Team as the first line of defence for the function.This position will be broad in scope, encompassing firewalls, application security, operating system security, data centre security, physical security of computer rooms as well as liaising with 3rd parties and internal teams, pen testing and risk assessments. The role will also be responsible for compiling and developing cyber security policy and procedures, investigating incidents and ultimately taking the lead in ensure best practice standards in place across the function.In order … Platforms or Applications before moving into a Cyber position, and have strong experience of working in a Bank or Financial Services setting. You will have excellent exposure to Cyber Security frameworks, SIEM and Virtualization tools. Mandarin language skills are preferred but not mandatory.In return, you will get a highly competitive annual salary and exceptional wider benefits package as well More ❯

Our client is a highly successful, international Bank based in central London. They are looking to expand their cyber security capacity by appointing a Senior IT Security Engineer within the wider IT Team as the first line of defence for the function. This position will be broad in scope, encompassing firewalls, application security, operating system … security, data centre security, physical security of computer rooms as well as liaising with 3rd parties and internal teams, pen testing and risk assessments. The role will also be responsible for compiling and developing cyber security policy and procedures, investigating incidents and ultimately taking the lead in ensure best practice standards in place across the function. … Platforms or Applications before moving into a Cyber position, and have strong experience of working in a Bank or Financial Services setting. You will have excellent exposure to Cyber Security frameworks, SIEM and Virtualization tools. Mandarin language skills are preferred but not mandatory. In return, you will get a highly competitive annual salary and exceptional wider benefits package as More ❯

Senior Install & Commissioning Fire & Security Engineer - London - £53,000 I Am Currently Representing A Large FM Company Who Are Growing There Fire And Security Division Across The UK, They Are Seeking Well Experienced And Ambitious Senior Engineer To Join Their Growing Company. Salary Package: £45,000 - £53,000 Call Out Rota Company Van - Fuel … Cover: London Responsibilities: Small Works, Installs & Commissioning on: Fire Alarms Intruder Alarms CCTV Systems Access Control Providing technical assistance Training/mentoring junior engineers Requirements: FIA/ZZEUS Courses Security courses Driving License More ❯

Senior Test Engineer - National Security We are the Information Intelligence Group (IIG) of CACI UK, a specialist software consultancy providing bespoke solutions to solve complex operational problems. As our business grows, we seek an experienced Senior Test Engineer to join our National Security Team on a live project. At IIG, we value talent that … can adapt to client challenges and foster innovation. Our collaborative work environment emphasizes strong relationships, intelligence, quick learning, flexibility, and enthusiasm for new opportunities. The Role: As a Senior Test Engineer, you will be part of a small, agile delivery team working on an active project. Your role will be to ensure continuous automated testing within a CI … and API testing Technologies used include Selenium, Cypress.io, Webdriver.io, Playwright, Cucumber, Robot Framework, Serenity BDD, and Rest Assured Contributing to QA team improvements and innovation Performing non-functional testing (security, performance, accessibility, OAT) using various tools The Fit: We seek proactive Test Engineers passionate about manual and automation testing, with experience in complex solutions. Comfort working autonomously within an More ❯

the firm managed approximately US$122 billion on behalf of major pension funds, endowments, foundations, governments and other investors based in the U.S. and abroad.Position Overview:The Senior Security Engineer, reporting to the Director of Information Assurance, is responsible for cloud platform and DevOps security. This senior role will call upon the candidate's DevSecOps experience … to help Acadian Shift Left, injecting security directly into our Software Development Lifecycle and consistently governing our AWS Platform-as-a-Service (PaaS) infrastructure. We are looking for candidates with deep experience and understanding of continuous delivery, container security, SAST/DAST, secrets management, Identity and Access Management (IAM) governance, privilege management, encryption and key management, threat detection … logging, cloud infrastructure security and policy-as-code.What You'll Do: Assess Acadian's cloud IAAS environments for Indicators of Misconfiguration (IOMs) utilizing AWS built-in and third-party assessment tools. Utilizing tools like AWS Config, Security Hub, Inspector, Guardduty, and Crowdstrike Falcon, assess monitor and prioritize remediation of Cloud security vulnerabilities. Develop and maintain tools to More ❯

About the role: Shape the Future of Cyber Security at Holland & Barrett At Holland & Barrett, we're not just a leading health and wellness retailer—we're a digital-first business that places customer trust at the heart of everything we do. We're looking for a Senior Security Operations Engineer to join our growing Cyber … Security team and help us protect millions of customers across our digital and in-store platforms. If you're passionate about automation, cloud technology, and fast-paced problem-solving—and want your work to have a real impact—this could be the perfect role for you. Key Responsibilities Lead security incident response and threat detection efforts, prioritising the … protection of customer data and experience Build automated detection and remediation workflows using SOAR, SIEM, and scripting (Python, SQL) Apply deep cloud security knowledge (AWS, Azure) to secure ecommerce, mobile apps, APIs, and in-store systems Collaborate with Fraud and Customer Experience teams to mitigate risks such as account takeover and loyalty fraud Onboard key customer-facing and payment More ❯

the heart of our digital transformation. As we continue to grow and innovate, securing our applications and protecting customer data is a top priority. We are looking for a Senior Application Security Engineer to lead our efforts in strengthening application security, mitigating risks, and ensuring best-in-class security practices. If you are passionate about … cybersecurity and eager to make a real impact, we want you on our team! Key Responsibilities: Security Strategy: Help define and execute the Holland & Barrett application security strategy. Collaborate with both tech and non-tech teams to integrate security principles into the early stages of product design and development. Secure SLDC: Establish a secure Software Development Lifecycle … software integrity, authenticity, and third-party library management. Risk Assessments: Conduct risk assessments, threat modeling, and architecture reviews alongside development teams, producing artifacts to drive the implementation of effective security controls. Standards Development: Own the creation and maintenance of tailored security standards and guidelines, developing reusable resources for various development teams. Team Support: Provide guidance and support to More ❯

include savers and businesses across the UK, and together we use our expertise to help them achieve their ambitions and build a sustainable future. We are seeking an experienced Senior Cyber Security Engineer who is looking to grow in a friendly environment. We are flexible, inclusive, committed to your wellbeing, and passionate about supporting your potential. Let … s grow together. Purpose of the role Reporting to the Head of Cyber Security, the Cybersecurity Engineer will be part of a team ensuring the security of all group systems, infrastructure (cloud and on-premises), and applications. The role involves delivering and implementing the bank's technology roadmap, ensuring best practices, security standards, and policies are … the ability to document delivery effectively. The role requires collaboration across teams and disciplines such as Infrastructure and Architecture within an agile environment. This position supports the bank's Security, Digital, and Cloud strategies. Duties and responsibilities Experience with SIEM tools (MS Sentinel advantageous) Understanding of Web technologies and Web Application Firewalls (WAF) Knowledge of Windows Server infrastructure More ❯

Security Research Engineer - Threat Protection The Role As a Security Research Engineer at Mimecast, you will be a pivotal technical expert dedicated to researching, analyzing, and developing detections for both malware and phishing threats. Your work will involve dissecting real-world file and web threats, building and optimizing detection signatures, and driving improvements to our advanced More ❯

Senior Technical Security Engineer Leiston. About us G4S is a global company operating across 120 countries, employing over 650,000 people across the world. You can find more about us here; https://www.g4s.com/en-gb We are at the forefront of the fire and security integrator market in the UK and have an … and client portfolio. Typical clients include Government, Utilities, Healthcare, MOJ and MOD to name a few. Due to a major contract win G4S are looking to recruit dedicated Technical Security Engineer. What will you be doing Installing and maintaining enterprise level security equipment. IP and network configuration and testing. Fibre optic infrastructure. Stakeholder management. Management of subcontract labour. … Ideally experience with enterprise level equipment such as C-Cure, Lenel. AMAG, Milestone, Genetec. Commercial awareness. Up to date with current CPNI regulations. Confident in liaising with on site security teams. There is also some must haves Must be able to pass BS7858 screening. Clean full UK driving license, with no more than 6 points. Enhanced DBS. Some government More ❯

Social network you want to login/join with: Senior Software Engineer (Content Delivery & Security), London col-narrow-left Client: bunny.net Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 3384ef32c222 Job Views: 7 Posted: 22.06.2025 Expiry Date: 06.08.2025 col-wide Job Description: We are on a mission to … take pride in their work, and aren't afraid to challenge what's possible. Because everyone deserves a better internet. And we're here to help it hop faster. Senior Software Engineer ( Content Delivery & Security) Our stack handles millions of requests per second across 119+ PoPs on six continents. Your job? Making it faster, safer, and more … efficient. As a Senior Software Engineer on our Content Delivery & Security team, you'll work on core CDN and DNS systems while helping build out our greenfield Shield product, focused on WAF, DDoS mitigation, and bot protection at a global scale. You'll design and optimize low-level systems that accelerate clean traffic and stop attacks in More ❯

Job Description: Are you passionate about building secure systems from the ground up? We're seeking an experienced and motivated Product Security Engineer to enhance the security of our SoC and embedded firmware solutions. In this role, you will evaluate system security architectures, review firmware code, contribute to ROM assessments, and perform hands-on threat modeling … and lightweight testing. This opportunity is ideal for someone who enjoys solving complex security challenges, collaborating across domains, and making a tangible impact on real-world products. If you are detail-oriented and committed to empowering others in security practices, we would love to hear from you! Responsibilities: Review firmware and SoC architecture for security risks and … threats. Evaluate security features such as secure boot, rollback protection, memory isolation, and TEE. Perform C/C++ security code reviews to identify implementation flaws. Conduct targeted tests to validate security concerns. Collaborate with cross-functional teams to integrate security into the development process. Help design secure firmware architectures for key management, update processes, and hardware More ❯

Senior MXDR Security Engineer sought by leading investment bank based in the city of London. **Inside IR35 - 3 days a week on site** What You'll Do: Development of use cases and rulesets across multiple log sources. Performing regular rule refinement sessions to address rule logic issues and false positives. Output activities from refinement sessions such as … refinement. MITRE ATT&CK heat map coverage. Working with internal ITC teams and the Customer to identify any onboarding or offboarding projects of appropriate log sources necessary for effective security monitoring. Identification of opportunities for additional monitoring. Workbook creation for data visualisation. Attendance at Service Review Meetings. Maintenance of Service Documentation such as LLD (co-management activity). Skills More ❯

Senior Service Fire & Security Engineer - London - £53,000 I Am Currently Representing A Large FM Company Who Are Growing There Fire And Security Division Across The UK, They Are Seeking Well Experienced And Ambitious Engineers To Join Their Growing Company. Salary Package: £45,000 - £53,000 Call Out Rota Company Van - Fuel Card Overtime - X1.5 Evenings … London Responsibilities: Maintenance, fault finding and servicing on: Fire Alarms Intruder Alarms CCTV Systems Access Control Providing technical assistance Training/mentoring junior engineers Requirements: FIA/ZZEUS Courses Security courses Driving License More ❯

and abroad. If you are ready to support a high-performing team that truly makes a difference,then come join us! Job Description: Provides subject matter expertise in system security requirements, designs security architecture and develops a security design for program platforms. Develops System Engineering plans, and procedures in accordance with DoD, Army, industry and academia best … all systems engineering tasks adhering to a disciplined systems engineering process a throughout all acquisition phases of the assigned subsystem, system or system of systems. The Sr. Information Systems Security Engineer shall possess the following capabilities: Program Protection - Be the PD SAI Program Protection Expert Work with ARTPC to define and address Program Protection requirements. Coordinate Information Assurance … electronic or computer engineering; computer science or related field. Experience in heterogeneous computer networking technology and work in protocol and/or interface standards specification is preferred. Industry recognized security certification, familiarity with DoD INFOSEC systems, policies, and procedures. A minimum of seven (7) years' experience, at least five (5) must be specialized experience including system security analysis More ❯