Senior Windows Security Engineer | Technology-Driven Quantitative Trading Firm

Techfellow Limited
City of London
6 days ago
Create job alert

[Up to c. £325k Comp Package | Hybrid Working]


Role Overview


We’re representing a leading global trading and technology firm seeking a Senior Windows Security Engineer to take ownership of the security posture across its Windows systems environment. Sitting within the broader Windows Engineering group, this position plays a key role in safeguarding the firm’s critical infrastructure and ensuring secure, resilient operations across a global technology platform. This is a newly created senior role - ideal for an experienced engineer who brings both depth and judgment to Windows platform security. You’ll be responsible for designing and implementing robust security controls, driving vulnerability management initiatives, and developing automation to scale protection across thousands of endpoints and servers.

The role is technically hands-on, strategic in influence, and well suited to an engineer who thrives on solving complex security challenges at scale...


Key Responsibilities


  • Design, implement, and maintain platform-level security controls across Windows systems in hybrid environments
  • Lead efforts to harden the Windows estate, including application control, host firewalls, auditing, and encryption
  • Drive vulnerability management and patching strategy, ensuring consistent remediation across enterprise endpoints and servers
  • Build automation in PowerShell and related frameworks to streamline detection, response, and compliance workflows
  • Integrate and optimise endpoint protection and EDR solutions, ensuring effective coverage and minimal user friction
  • Collaborate with platform engineers to embed secure-by-default practices into system configuration and deployment pipelines
  • Evaluate new security tools, conduct proof-of-concepts, and contribute to the strategic roadmap for Windows platform defence
  • Monitor, investigate, and respond to potential threats targeting the Windows ecosystem, using telemetry and event data to identify patterns
  • Partner with identity, networking, and infrastructure teams on projects related to Active Directory, Entra ID, and PKI
  • Produce technical documentation and guidance to support operational consistency and knowledge sharing across teams


What You’ll Bring...


  • 8-14 years’ professional experience in Windows systems or security engineering roles within large, distributed environments
  • Deep knowledge of Windows internals and operating system security controls, including kernel-level understanding of process, memory, and privilege management
  • Proven ability to design and implement scalable endpoint security measures (AV/EDR, vulnerability scanning, patch orchestration, and configuration baselines)
  • Familiarity with security frameworks and best practices, including OS hardening, access management, and least-privilege enforcement
  • Hands-on experience with Active Directory, Entra ID, and PKI environments, including certificate lifecycle management
  • Strong automation and scripting ability using PowerShell, with the capability to build repeatable, efficient security workflows
  • Understanding of threat tactics and countermeasures relevant to Windows environments, including lateral movement and persistence techniques
  • *Experience working in mission-critical hybrid infrastructures, balancing risk, uptime, and performance
  • Excellent communication skills - able to translate complex technical issues into actionable insights for non-specialist teams
  • (Preferred) Exposure to vulnerability assessment tooling, SIEM integration, or event correlation pipelines


...

Related Jobs

View all jobs

Senior Windows Security Engineer | Technology-Driven Quantitative Trading Firm

Senior Data Analyst

Senior Data Engineer

Senior Data Engineer - £80,000 - Hybrid

Senior Data Analyst

Senior Data Engineer - Azure | Permanent | Hybrid

Subscribe to Future Tech Insights for the latest jobs & insights, direct to your inbox.

By subscribing, you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

Neurodiversity in Data Science Careers: Turning Different Thinking into a Superpower

Data science is all about turning messy, real-world information into decisions, products & insights. It sits at the crossroads of maths, coding, business & communication – which means it needs people who see patterns, ask unusual questions & challenge assumptions. That makes data science a natural fit for many neurodivergent people, including those with ADHD, autism & dyslexia. If you’re neurodivergent & thinking about a data science career, you might have heard comments like “you’re too distracted for complex analysis”, “too literal for stakeholder work” or “too disorganised for large projects”. In reality, the same traits that can make traditional environments difficult often line up beautifully with data science work. This guide is written for data science job seekers in the UK. We’ll explore: What neurodiversity means in a data science context How ADHD, autism & dyslexia strengths map to common data science roles Practical workplace adjustments you can request under UK law How to talk about your neurodivergence in applications & interviews By the end, you’ll have a clearer sense of where you might thrive in data science – & how to turn “different thinking” into a real career advantage.

Data Science Recruitment Trends 2025 (UK): What Job Seekers Need To Know About Today’s Hiring Process

Summary: UK data science hiring has shifted from title‑led CV screens to capability‑driven assessments that emphasise rigorous problem framing, high‑quality analytics & modelling, experiment/causality, production awareness (MLOps), governance/ethics, and measurable product or commercial impact. This guide explains what’s changed, what to expect in interviews & how to prepare—especially for product/data scientists, applied ML scientists, decision scientists, econometricians, growth/marketing analysts, and ML‑adjacent data scientists supporting LLM/AI products. Who this is for: Product/decision/data scientists, applied ML scientists, econometrics & causal inference specialists, experimentation leads, analytics engineers crossing into DS, ML generalists with strong statistics, and data scientists collaborating with platform/MLOps teams in the UK.

Why Data Science Careers in the UK Are Becoming More Multidisciplinary

Data science once meant advanced statistics, machine learning models and coding in Python or R. In the UK today, it has become one of the most in-demand professions across sectors — from healthcare to finance, retail to government. But as the field matures, employers now expect more than technical modelling skills. Modern data science is multidisciplinary. It requires not just coding and algorithms, but also legal knowledge, ethical reasoning, psychological insight, linguistic clarity and human-centred design. Data scientists are expected to interpret, communicate and apply data responsibly, with awareness of law, human behaviour and accessibility. In this article, we’ll explore why data science careers in the UK are becoming more multidisciplinary, how these five disciplines intersect with data science, and what job-seekers & employers need to know to succeed in this transformed field.