At a Glance
- Tasks: Design and implement security controls for Windows systems in a hybrid environment.
- Company: Leading global trading and technology firm with a focus on innovation.
- Benefits: Competitive salary package, hybrid working, and opportunities for professional growth.
- Other info: Collaborative culture with excellent career advancement opportunities.
- Why this job: Join a dynamic team tackling complex security challenges and make a real impact.
- Qualifications: 8-14 years in Windows security engineering with strong automation skills.
The predicted salary is between 54000 - 66000 £ per year.
- Senior Windows Security Engineer | Technology-Driven Quantitative Trading Firm
- 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 newly created senior role is ideal for an experienced engineer with depth and judgment in 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 Power Shell 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 Power Shell, 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.
- #J-18808-Ljbffr
Senior Windows Security Engineer | Technology-Driven Quantitative Trading Firm employer: Techfellow Limited
Techfellow Limited is an excellent employer for those seeking a dynamic and rewarding career in software engineering. With a strong focus on employee growth, the company fosters a collaborative work culture that encourages innovation and ownership, all while offering the flexibility of a hybrid working model in the vibrant city of London. Employees benefit from competitive compensation, ongoing professional development opportunities, and the chance to work on cutting-edge technology in a supportive environment.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Windows Security Engineer | Technology-Driven Quantitative Trading Firm
✨Get Involved in the Cybersecurity Community
Diving into the cybersecurity community is key for landing that full-time gig. Join forums like Reddit's r/cybersecurity or attend local meetups to connect with industry veterans and other job seekers. Networking is everything in this field—don’t just be a passive lurker!
✨Show Off Your Skills with Capture the Flag Competitions
Participate in Capture the Flag (CTF) competitions; these are not just a fun way to boost your skills but also a chance to showcase your talent to potential employers. Many companies, including Techfellow Limited, love seeing candidates who actively engage in these challenges.
✨Tailor Your Online Presence
Make sure your LinkedIn and any professional profiles reflect your cybersecurity expertise. Share your projects, whether they’re personal or from a previous role, to catch the eye of hiring managers. This is how they’ll find your passion and commitment to the field!
✨Apply Directly Through Techfellow Limited
Don’t forget to head straight to our website and check out any openings for cybersecurity roles at Techfellow Limited. Applying directly can sometimes give you an edge, especially if you can mention that you've been following our work or engaging in the community.
We think you need these skills to ace Senior Windows Security Engineer | Technology-Driven Quantitative Trading Firm
Some tips for your application 🫡
Show off your technical skills:In cybersecurity, it's crucial to highlight your technical prowess. Make sure your CV showcases specific skills like network security, penetration testing, or threat analysis. If you have relevant certifications (like CEH or CISSP), pop those on the front page to grab attention!
Tailor your portfolio for the role:Even for a full-time role, a portfolio can set you apart. If you've worked on any cybersecurity projects—be it CTF challenges, security assessments, or research papers—include these in your application. This demonstrates not just your skills, but also your hands-on experience!
Use real-world examples:When writing your cover letter, don’t just stick to your qualifications. Share real-world examples of how you’ve tackled security issues or vulnerabilities. This gives the hiring team at Techfellow Limited insight into your practical problem-solving abilities and makes your application memorable.
Demonstrate your passion for cybersecurity:Cybersecurity is an ever-evolving field, so show us that you’re always learning! Mention any recent courses, webinars, or industry events you’ve attended. This not only exhibits your enthusiasm but also signals to Techfellow Limited that you’re committed to staying ahead in the game.
How to prepare for a job interview at Techfellow Limited
✨Sharpen Your Technical Skills
For a role in cybersecurity, it’s essential to be up-to-date with the latest tools and techniques. Brush up on your knowledge of firewalls, intrusion detection systems, and vulnerability assessment tools. Be ready to discuss specific scenarios where you’ve applied these skills, as hands-on experience can really set us apart in interviews.
✨Prepare for Scenario-Based Questions
Expect the interviewers at Techfellow Limited to throw in some hypothetical situations to see how you’d handle them. Think about common security breaches or incidents and be prepared to explain how you would respond. This not only shows your problem-solving skills but also your understanding of real-world cybersecurity challenges.
✨Highlight Your Certifications
Certifications like CompTIA Security+, CISSP, or CEH can give you a significant edge in a full-time role in cybersecurity. Make sure to mention these during your interview and be prepared to discuss what you learned through those certifications and how they relate to the position at Techfellow Limited.
✨Show Your Passion for Cybersecurity
Since you’re going for a full-time gig, showing genuine enthusiasm for the field can make all the difference. Share any personal projects, blogs, or communities you’re part of that relate to cybersecurity. This not only showcases your passion but also your commitment to staying engaged in this ever-evolving field.
