London, England, United Kingdom · Remote OK
$85k–$105k/yr
AI is being run everywhere, by humans and agents. Harmonic Security governs all of it. The AI Governance and Control (AIGC) platform understands user / agent intent and data context in real time, giving security teams vi…
Skills: Python, PyTorch, Hugging Face, Scikit-learn, Natural Language Processing
London, England, United Kingdom · Remote OK
$89k–$105k/yr
AI is being run everywhere, by humans and agents. Harmonic Security governs all of it. The AI Governance and Control (AIGC) platform understands user / agent intent and data context in real time, giving security teams vi…
Skills: Java, Spring Boot, Maven, Gradle, Event-Driven Architecture
London, England, United Kingdom · On-site
Location: Office based - Central London Summary of role Our Administrator will provide a high-quality administration and back-office support service to operational teams and clients. You will ensure efficient and effecti…
Skills: Administration, Customer Service, Time Management, Attention To Detail, Microsoft Office Suite
London, England, United Kingdom · Hybrid
$55k–$57k/yr
Safety, Health, Environment and Quality (SHEQ) Manager Shaping Safety and Sustainability Location: Abbey Road HRRC, Park Royal, NW10 7TJ (Primary base) Contract Type: Permanent- (Part-Time/Full-Time will be considered) M…
Skills: SHEQ Management, Risk Assessment, Internal Auditing, Accident Investigation, ISO Accreditation
London, England, United Kingdom · Hybrid
Line of Service Assurance Industry/Sector Not Applicable Specialism Entrepreneurial & Private Business (EPB) - General Management Level Senior Manager Job Description & Summary About the role: We are seeking a Senior Man…
Skills: Enterprise Risk Management, Risk Framework Design, Risk Assessment, Key Risk Indicators, Risk Appetite Articulation
London, England, United Kingdom · On-site
$29k–$33k/yr
The Role We're proud to be an approved StS provider, which gives our local authority clients and our tenants the confidence that the accommodation we provide is safe and of a good standard. As our StS coordinator you wil…
Skills: Interpersonal Skills, Administrative Skills, Delegation, Prioritization, Attention To Detail
London, England, United Kingdom · On-site
At International SOS, we are in the business of protecting and saving lives. For 40 years, we have delivered customised security risk management, health, and wellbeing solutions to organisations worldwide. With a presenc…
Skills: Copy Editing, Proofreading, Written Communication, Verbal Communication, Project Management
London, England, United Kingdom · Hybrid
About Lendable Lendable is on a mission to build the world's best technology to help people get credit and save money. We're building one of the world’s leading fintech companies and are off to a strong start: One of the…
Skills: Fraud Investigation, Dispute Resolution, Chargeback Management, Mastercard Scheme Rules, Financial Crime Prevention
London, England, United Kingdom · On-site
Welcome to Haleon. We’re a purpose-driven, world-class consumer company putting everyday health in the hands of millions. In just three years since our launch, we’ve grown, evolved and are now entering an exciting new ch…
Skills: Enterprise Architecture, Infrastructure Design, People Management, Security-by-Design, Cloud Computing
London, England, United Kingdom · Hybrid
Our purpose is to give everyone real confidence to put their money to work. With a heritage dating back more than 175 years, we have a long history of innovation in savings and investments, combining asset management and…
Skills: Financial Crime Policy, Regulatory Horizon Scanning, Gap Analysis, Benchmarking, Risk-Based Approach
London, England, United Kingdom · On-site
Job Description 🌟 Here, YOU LEAD the business – YOU IMPACT lives – YOU GROW yourself 🌟 We are looking for a Full Time Loss Prevention Associate to join our UNIQLO Loss Prevention Team at UNIQLO Kensington. Responsible …
Skills: Loss Prevention, Safety Management, Incident Reporting, Investigation, Inventory Accuracy
London, England, United Kingdom · Hybrid
$50k–$65k/yr
About Auror At Auror, we’re empowering the retail industry to tackle theft and Organised Retail Crime, a $150 Billion problem globally. It’s high volume crime that’s increasingly organised in nature and is putting people…
Skills: Customer Onboarding, Enterprise SaaS Implementation, Project Management, Stakeholder Engagement, ROI Analysis
London, England, United Kingdom · On-site
Hello! We're Teya. 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 that enable our members t…
Skills: Third Party Risk Management, Outsourcing Management, Due Diligence, Regulatory Compliance, Risk Assessment
London, England, United Kingdom · On-site
CMC Markets is looking for an experienced Senior Network & Security Engineer to join our Technology team. This role plays a key part in designing, building and supporting our global network infrastructure, ensuring high …
Skills: Cisco ACI, Multicast Networking, CCNP, Data Centre Design, Cloud Networking
London, England, United Kingdom · On-site
About Us LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the s…
Skills: AML Compliance, Financial Crime Advisory, SMF17, Regulatory Reporting, SARs Monitoring
London, England, United Kingdom · Hybrid
$72k–$75k/yr
Salary: £72,000 to £75,000 Dependant on experience Contract Type: Full Time Permanent Security Level: CTC Location: London / Gatwick / Hybrid Visa Restrictions: This position does not currently offer visa sponsorship. We…
Skills: Programme Leadership, People Management, Regulatory Framework Development, Stakeholder Engagement, Strategic Planning
London, England, United Kingdom · On-site
Job Description Purpose of the role To provide specialist proactive and reactive investigative service in response to physical incidents, cyber security incidents, external fraud insider threats and criminal conduct. Acc…
Skills: Application Security, Product Security, Shift-Left Security, Vulnerability Management, Threat Modelling
London, England, United Kingdom · On-site
Driver Manager Application Deadline: 1 July 2026 Department: Operations Employment Type: Permanent Location: Beddington Depot Reporting To: Operations Manager Compensation: £52,080 / year Description The successful candi…
Skills: People skills, Communication, Listening, Adaptability, Investigative interviewing
London, England, United Kingdom · On-site
Company Description Shawbrook provides finance to a wide range of customer segments that value the premium experience, flexibility and certainly we deliver. We are a purpose-led organisation, with a focus on delivering l…
Skills: Control Testing, IT Risk Management, Cyber Risk, GRC Tooling, AuditBoard
London, England, United Kingdom · Hybrid
About the role: You will be part of a global team responsible for reviewing, articulating, and supporting the negotiation of cyber security contractual language. The role contributes to building and maintaining client tr…
Skills: Cyber Security Contract Negotiation, IT Security Risk Management, Compliance, Privacy, ISO 27001
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Build and improve end-to-end sensitive data detection models by curating training datasets and tuning production models. Collaborate with engineering and product teams to iterate on model performance based on real-world customer feedback.
Requires strong applied NLP experience with transformers and the modern ML stack, including Python, PyTorch, and Hugging Face. Candidates must have a proven track record of taking classification models from idea to production and managing high-quality datasets.
AI is being run everywhere, by humans and agents. Harmonic Security governs all of it. The AI Governance and Control (AIGC) platform understands user / agent intent and data context in real time, giving security teams visibility and control across every tool and workflow so companies can move faster with AI while minimizing risk.
We operate in one of the fastest-moving spaces in tech: the emerging intersection of AI and cybersecurity. It's a market still being defined, and we're among the first to build natively for it - protecting sensitive data in real time, at the endpoint, with minimal friction for the teams using it. Enterprises get full visibility and control. Their people get to innovate without guardrails slowing them down.
Named to the Rising in Cyber 2026 list, Harmonic is gaining serious recognition and serious traction. We're led by deep cybersecurity expertise and backed by investors who know the space: N47, Ten Eleven Ventures, and In-Q-Tel.
As AI adoption inside the enterprise accelerates, the ability to safely observe, control, and enforce policy in real time isn't a nice-to-have. It's mission-critical infrastructure. That's what we build.
Our Product Delivery team is the engine that turns vision into impact. We ship early and often, getting valuable features into the hands of customers quickly and iterating fast. We work in the open by default, sharing progress and ideas, and we trust each other to own outcomes. We’re a small but mighty crew where every person plays a critical role and we’re committed to using AI to work smarter and faster.
As our Data Scientist, you’ll help advance our mission to secure Generative AI adoption by building and continuously improving the detection models at the heart of our product - curating high-quality training datasets and tuning production models informed by real-world customer feedback.
You’ll build and improve sensitive data detection models end-to-end - defining new sensitive data categories, curating training and evaluation datasets, training and validating models, and shipping production-ready detectors.
Once models are live, you’ll continuously improve our existing suite using model performance metrics and direct customer feedback to prioritise retunes and sharpen detection accuracy.
You’ll communicate clearly and proactively in a remote/hybrid team - able to explain trade-offs, make recommendations, and bring engineering, security, and product partners along in decisions without slowing momentum.
You’ll stay current on techniques that materially improve model and dataset quality, and you'll be directly contributing to the development of groundbreaking technology that empowers secure Generative AI adoption within enterprises.
You’ve taken classification / NLP models from idea to production and owned them after launch - monitoring performance, tuning on real-world feedback, and improving results over time (not just training and handing off).
You have strong applied NLP experience: transformers and embeddings, when fine-tuning makes sense, and when a simpler classical approach wins.
You’ve built and managed high-quality training and evaluation datasets from messy real-world data - making hard labelling/taxonomy calls, and you can point to how dataset quality moved model performance.
You run rigorous evaluation and care about precision/recall trade-offs, so we know a model is better before customers do.
You’re expert in Python and comfortable in the modern ML stack (e.g. PyTorch, Hugging Face, scikit-learn).
You’re a clear communicator who collaborates well across a remote/hybrid team, and you have a bias for shipping: pragmatic decisions, fast iteration, and incremental delivery.
Experience in data security / sensitive-data classification, or adjacent applied security problem spaces.
Experience working directly with customers/end-users to understand the problem domain and validate improvements.
Experience operating ML systems in cloud environments (e.g. AWS).
Harmonic exists to help enterprises adopt AI safely and at scale. We hold ourselves to the same standard.
Everyone at Harmonic actively uses AI tools to do their best work, from research and writing to building processes and automating workflows. We expect every new hire to bring curiosity about AI and a willingness to use it to work smarter, faster, and more creatively.
For some roles, that means tinkering and staying open to new tools. For others, it means building entirely new systems with AI at the core. We'll be clear about what we expect for each role, and we'll give you the tools and support to get there.
This isn't just a job - it's a chance to help define a category. Harmonic Security was named to the Rising in Cyber 2026 list, and we're just getting started. We're building at the intersection of AI and security, carving out an emerging market where the rules haven't been written yet, and the people who join now will write them.
We believe today's talent is tomorrow's success, and we're committed to creating an environment where you can do the best work of your life.
Recognized momentum - We made the Rising in Cyber 2026 list, a signal that the market is taking notice
Rare market opportunity - Join early in a category-defining company at the convergence of AI and security, where your work directly shapes how enterprises tackle one of the biggest unsolved problems in tech
Competitive pay and meaningful equity - A real stake in Harmonic's success, not a token gesture
Comprehensive benefits - 401K, pension plan, generous PTO, and flexible hybrid work
A small, high-trust team that values transparency, creativity, and continuous learning - no politics, no bureaucracy
Thoughtful leadership - that cares deeply about your growth, not just your output
Annual global off-sites - past trips include Lisbon, Portugal and Nashville, TN
Real ownership - you'll shape the product, the culture, and the direction of the company from day one
We embrace new, unfamiliar situations that require initiative and rapid decision-making. We orient ourselves quickly and deliver results with minimal guidance.
We raise our hands, take on challenges, and assist others whenever possible. We hunger for opportunities to learn and do more.
We support one another to create cohesion and unity. We collaborate openly, share feedback honestly, and help everyone produce their best work
Govern AI wherever your workforce runs it.
AI is being run everywhere, by humans and agents. Harmonic Security governs all of it. The AI Governance and Control (AIGC) platform understands user / agent intent and data context in real time, giving security teams visibility and control across every tool and workflow so companies can move faster with AI while minimizing risk. Request to join our AI Security Community at https://forms.gle/NuwfEQBqsC9wWqgz5
Offices: 1390 Market Street, Suite 200, San Francisco, California 94102, US
There are currently 867 open security & safety positions in London, United Kingdom listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Wise, JLL, Amazon, HSBC, Securitas Group, among others. Browse the listings above to see every active employer.
Yes — 435 of the 867 open security & safety positions offer remote or hybrid work (67 remote, 368 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
