Senior Security Engineer

Company IconCapital Markets Gateway
Location IconLondon

The Company Capital Markets Gateway LLC (CMG) is a financial technology firm, uniquely focused on the equity capital markets (ECM), connecting investors and underwriters via a neutral platform. CMG delivers integrated ECM data and...Read More>>.

Posted: August 10th, 2026
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Senior Security Engineer

Company IconPay.UK
Location IconLondon

Senior Security Engineer - 12 Months FTC Join Pay.UK as a Senior Security Engineer and help protect the systems that support everyday payments across the UK. This role provides an opportunity to put advanced security engineering skills...Read More>>.

Posted: August 10th, 2026
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Security Engineer London

Company IconGranola inc
Location IconLondon

Hey! We're team Granola If you haven't already, you should check out what we're building, and why you should work here. In this role, you will be responsible for identifying and mitigating security vulnerabilities within Granola's applic...Read More>>.

Posted: August 17th, 2026
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Senior Security Engineer

Company IconCybanetix
Location IconLondon

Senior Security Engineer, Governance, Risk and Compliance (London) London, England, United Kingdom Seniority level: Mid‑Senior level Employment type: Full‑time Job function: Information Tec...Read More>>.

Posted: August 17th, 2026
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Senior Security Engineer

Company IconTeya
Location IconLondon

Get AI-powered advice on this job and more exclusive features.Teya is a payment and software service provider, headquartered in London serving small, local businesses across Europe. Founded in 2019, we build easy to use, integrated tools th...Read More>>.

Posted: August 17th, 2026
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Cyber Security Engineer

Company IconPathfinder - IT Recruitment
Location IconLondon

Base pay rangeCyber Security Engineer - Project Delivery – PermanentUp to £60,000 DOE, London – HybridJoin a leading MSP’s Cyber Security Projects team as a Project Delivery Cyber Security Engineer, working on...Read More>>.

Posted: August 17th, 2026
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Fire & Security Engineer

Company IconVenatu Recruitment Group
Location IconLondon

Overview Venatu Recruitment are proud to announce that a new client of ours are now in the market for a new Fire & Security professional to join them. We are seeking an experienced Fire and Security Engineer in and around London on beh...Read More>>.

Posted: August 17th, 2026
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Offensive Security Engineer

Company IconLSEG
Location IconLondon

Role Summary This opportunity within the Offensive Security Operations team is a crucial role for the management of vulnerability discovery, offensive testing and remediation activities across the group which protects the business from...Read More>>.

Posted: August 17th, 2026
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Cyber Security Engineer

Company IconLevy Professionals
Location IconLondon

OverviewCyber Security Engineer required on an initial three month contract likely to extend.You will help re-architect the clients existing systems after a recent security review.ResponsibilitiesCyber Secur...Read More>>.

Posted: August 17th, 2026
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Cyber Security Engineer

Company IconMorgan Hunt UK Limited
Location IconLondon

Cyber Security Engineer Housing Association 12-Month FTC Up to £65,000 Hybrid - Farringdon Morgan Hunt is delighted to be partnering with a leading Housing Association to recruit an experienced Cyber Securi...Read More>>.

Posted: August 21st, 2026
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Cloud Security Engineer

Company IconFin. The highest performing Customer Agent
Location IconLondon

Fin is the AI Customer Agent company on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, alway...Read More>>.

Posted: September 2nd, 2026
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Staff Security Engineer

Company IconCFC Underwriting
Location IconLondon

Staff Security Engineer At CFC, technology is at the heart of everything we do. As a market leader in cyber insurance and a business built on innovation, we’re looking for a Staff Security Engineer to play a critical role in evolving...Read More>>.

Posted: September 14th, 2026
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Product Security Engineer

Company IconCloudflare
Location IconLondon

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individ...Read More>>.

Posted: September 14th, 2026
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Junior Security Engineer

Company IconCybanetix
Location IconLondon

OverviewLocation: UK (remote/hybrid, with up to one day per week in central London)Stack:SIEM: Microsoft Sentinel, or similarEDR/XDR: Defender, SentinelOne, CrowdStrike or equivalentCloud/Pla...Read More>>.

Posted: September 14th, 2026
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Application Security Engineer

Company IconThe Pokémon Company International
Location IconLondon

Get to know The Pokémon Company International The Pokémon Company International manages the Pokémon property outside of Asia and is responsible for brand management, licensing and marketing, the Pokémon Trading Card Game, the anima...Read More>>.

Posted: September 14th, 2026
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Cyber Security Engineer

Company IconM&C Saatchi Group
Location IconLondon

We are seeking a proactive and technically capable Cyber Security Specialist to support the protection of the organisation's information assets, systems, and services. The role will work across security operations, governance, risk management,...Read More>>.

Posted: September 16th, 2026
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Founding Security Engineer

Company IconPear VC
Location IconLondon

About Wexler Wexler is building the best AI system for litigation on the planet. We work with some of the world’s largest law firms, helping them to solve their most complex cases, find the winning strategy in each matter, and create...Read More>>.

Posted: September 18th, 2026
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Security Engineer

Company IconPontoon
Location IconLondon

Security Engineer 6-Month Contract 700- 800 per day (Umbrella) Hybrid Working Midlands-based office visit approximately once per month The Opportunity We're supporting a leading organisation operating with...Read More>>.

Posted: September 21st, 2026
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Security Engineer

Company IconCaspian One
Location IconLondon

OverviewPlatform Security Engineer – Contract RoleLocation: LondonHybrid Working: 3 days per week in the officeStart Date: ASAPWe are hiring a Platform Security Engineer...Read More>>.

Posted: September 21st, 2026
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Senior Cybersecurity Engineer

Company IconMCS Group | Your Specialist Recruitment Consultancy
Location IconBelfast

Location & Working Model Belfast (Hybrid – 3 days on-site). Open to UK‑based candidates willing to relocate to Belfast. Comprehensive benefits package including healthcare, pension and additional company benefits. Op...Read More>>.

Posted: September 21st, 2026
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Security Engineer

Company IconConduct AI Ltd
Location IconLondon

Why Conduct The world's largest companies are slowed down by the software they run on. We're building the AI operating system that absorbs IT complexity and unlocks entirely new levels of speed, output, and ambition. We believe this is...Read More>>.

Posted: September 21st, 2026
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Security Engineer

Company IconAir Apps
Location IconLondon

About Air Apps At Air Apps, we believe in thinking bigger-and moving faster. We're a family-founded company on a mission to create the world's first AI-powered Personal & Entrepreneurial Resource Planner (PRP), and we need your passion...Read More>>.

Posted: September 21st, 2026
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Security Engineer

Company IconeasyJet Airline Company PLC
Location IconLondon

Job Description - Security Engineer (17272) Job Description Security Engineer ( 17272 ) Description We are easyJet – a FTSE listed, £multi-billion low-cost airline that serves tens of millions of customers every s...Read More>>.

Posted: September 21st, 2026
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Security Engineer

Company IconXTX Markets
Location IconLondon

The Firm XTX Markets is a leading algorithmic trading firm which uses state-of-the-art machine learning technology to produce price forecasts for over 53,000 financial instruments across equities, fixed income, currencies, commodities...Read More>>.

Posted: September 21st, 2026
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Security Engineer

Company IconV7
Location IconLondon

Job Description As a Security Engineer at V7, you'll play a crucial role in safeguarding our systems, networks, and data from potential threats and vulnerabilities and ensure we stay compliant with our security certifications:...Read More>>.

Posted: September 21st, 2026
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Security Engineer

Company IconStackOne Technologies Limited
Location IconLondon

About StackOne: StackOne is the AI Integration Gateway for SaaS products and AI Agents. Backed by GV and Workday Ventures ($24M raised), we help builders of SaaS platforms and AI Agents orchestrate hundreds of scalable, accurate,...Read More>>.

Posted: September 21st, 2026
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Security Engineer

Company IconConduct AI
Location IconLondon

Why ConductThe world's largest companies are slowed down by the software they run on. We're building the AI operating system that absorbs IT complexity and unlocks entirely new levels of speed, output, and ambition. We believe t...Read More>>.

Posted: September 21st, 2026
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Security Engineer

Company IconConduct
Location IconLondon

Why ConductThe world's largest companies are slowed down by the software they run on. We're building the AI operating system that absorbs IT complexity and unlocks entirely new levels of speed, output, and ambition. We believe t...Read More>>.

Posted: September 21st, 2026
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Network Security Engineer

Company IconHamilton Barnes ?
Location IconLondon

Do you want to work for a global quant trading firm?You will be working with an organisation that is known for the quickest and most technologically advanced infrastructure in the world. You will work with people that are passionate abou...Read More>>.

Posted: September 21st, 2026
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Security Engineer - Product

Company IconUnited States Digital Space LLC
Location IconLondon

Come join the organization that is redefining security for the AI era. As one of the fastest-growing startups ever, we enable teams to secure cloud and AI applications by connecting code, cloud, and runtime into a single shared context. Trusted...Read More>>.

Posted: September 21st, 2026
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Network Security Engineer

Company IconOpticoreIT
Location IconLondon

Opticore IT is a specialist Network Engineer and Project Management consultancy offering a wide variety of opportunities to work within fast-paced, challenging environments across our client base spanning multiple sectors including Finance, Bro...Read More>>.

Posted: September 21st, 2026
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Cyber Security Engineer

Company IconGravitas Group
Location IconLondon

Cyber Security Engineer 12-Month FTC | Up to c. £75,000 | Hybrid: 1 day/week in South London We are currently partnering with a client who are seeking a Cyber Security Engineer to help drive several key security initiatives a...Read More>>.

Posted: September 21st, 2026
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Senior Security Engineer

Company IconMixpanel, Inc.
Location IconLondon

Mixpanel is the leading product intelligence and analytics platform, trusted by more than 29,000 companies to help understand how people use the products they build. By combining powerful analytics with AI that knows your business, Mixpanel hel...Read More>>.

Posted: September 22nd, 2026
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Product Security Engineer

Company IconArrows
Location IconLondon

One of London’s fastest-growing AI companies is looking for a Senior Software Security Engineer to help build security directly into its product and engineering environment.This isn’t a traditional InfoSec position. They’re looking...Read More>>.

Posted: September 22nd, 2026
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Security Engineer

Company IconRex Technologies GmbH
Location IconLondon

About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The gro...Read More>>.

Posted: September 24th, 2026
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Cyber Security Engineer

Company IconDGH Recruitment
Location IconLondon

DGH Recruitment are currently recruiting on behalf of a leading client in the Real Estate industry who require a Cyber Security Engineer to join the firm in London on a 12 month fixed term basis.Key Responsibilities:Work wi...Read More>>.

Posted: September 24th, 2026
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Security Engineer

Company IconLMAX Group
Location IconLondon

About the Role: The Security Engineer plays a crucial role in the development, implementation, maintenance, and monitoring of security controls at LMAX. This position focuses on security technologies and requires individuals with a cur...Read More>>.

Posted: September 26th, 2026
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Security Engineer

Company IconMarex
Location IconLondon

Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides co...Read More>>.

Posted: September 26th, 2026
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Security Engineer

Company IconCrimson
Location IconLondon

Crimson is the AI case intelligence platform for litigation and arbitration. We help disputes teams at leading law firms understand large case files, test arguments and produce high-quality work grounded in the full matter record.Crimson...Read More>>.

Posted: September 26th, 2026
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Cyber Security Engineer

Company IconChurch International
Location IconLondon

Category: Security & Business ContinuityOurclientprovidesitsserviceswithinaregulatedindustry. Thispositioniscrucialinimplementingandmaintainingrobustsecuritymeasuresacrosstheirinfrastructure,aswellasmanagingincidentresponse.Theroleinvolvesd...Read More>>.

Posted: September 26th, 2026
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AI Security Engineer

Company IconJanus Henderson Group
Location IconLondon

Select how often (in days) to receive an alert: A career at Janus Henderson is more than a job, it’s about investing in a brighter future together. Our Mission at Janus Henderson is to help clients define and achieve superior f...Read More>>.

Posted: September 26th, 2026
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Security Engineer

Company IconHarrington Starr
Location IconLondon

Senior Security Engineer | Managed Security Services | London I’m currently recruiting for a Senior Security Engineer to join a growing Managed Security Services team in London (Hybrid). This is a hands‑on oppo...Read More>>.

Posted: September 27th, 2026
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Security Engineer

Company Icondevelop
Location IconLondon

Security Engineer – Perm – Up to £85,000 + benefits Must already hold or be eligible for SC level security clearance Remote - 1 - 3 x a month in London office An established organisation is seeking a M...Read More>>.

Posted: September 27th, 2026
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Cyber Security Engineer

Company IconHuxley
Location IconLondon

Cyber Security EngineerHedge Fund | Small, High-Impact Security Team | LondonWe are partnering with a highly successful investment management firm seeking a Security Engineer to join a small, technically strong secur...Read More>>.

Posted: September 27th, 2026
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Cyber Security Engineer

Company IconGravitas Recruitment Group (Global) Ltd
Location IconLondon

Cyber Security Engineer | London | Upto £85k DOE + bonus Working with a well-established financial services client that is strengthening its cybersecurity team. The focus is on building and developing the security technology stack: th...Read More>>.

Posted: September 27th, 2026
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IT Security Engineer

Company Iconsociedad colombiana de cardiología y cirugía cardiovascular
Location IconLondon

AboutUs Our mission is simple: we want to set people free to do meaningful work. People love our software--and it turns out that people love working here too. We've been recognized as a "Best Company to Work For", and we're proud of ou...Read More>>.

Posted: September 28th, 2026
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Security Engineer

Company IconLT Harper Group
Location IconLondon

Senior Security Engineer (Defender / Sentinel) UK Applicants ONLY You’ll be the engineer who makes Defender and Sentinel actually work for enterprise customers: deploying them, tuning them, automating around them, and working wit...Read More>>.

Posted: October 1st, 2026
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Security Engineer

Company IconBarclay Simpson
Location IconLondon

This specialist retail company seeks an experienced Security Engineer to own security tooling and to take ownership of end-to-end security engineering projects as part of a small team.This is a broad generalist security engineering role in...Read More>>.

Posted: October 1st, 2026
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Cyber Security Engineer

Company IconBig Red Recruitment
Location IconLondon

What if your next Cloud Security role was designed to take you beyond engineering? You’ll join a growing cybersecurity consultancy where you can get hands-on with complex Azure security, identity, PIM and PAM work while sitting directly w...Read More>>.

Posted: October 1st, 2026
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Cyber Security Engineer

Company IconDVF Recruitment
Location IconLondon

Cyber Security Engineer | Leading International Law Firm | London (Hybrid) £77,000 (£80k for the right expertise) A well-regarded international law firm with a global presence is looking for a Cyber Security Engineer to join thei...Read More>>.

Posted: October 2nd, 2026
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