Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Design and develop security tools, automate processes, and enhance system security.
- Company: Leading global trading and technology firm with a focus on cybersecurity.
- Benefits: Competitive compensation package, collaborative culture, and opportunities for professional growth.
- Other info: Hands-on role in a low-ego environment with excellent career advancement potential.
- Why this job: Join a dynamic team to solve real-world security challenges through innovative engineering.
- Qualifications: 3-7 years in security engineering, strong coding skills, and a solid tech background.
We’re partnering with a leading global trading and technology firm as it continues to expand its broader cybersecurity engineering capability across multiple international locations. This role is intentionally broad in scope, designed for strong software-oriented security engineers who may sit across offensive security, defensive engineering, infrastructure security, detection, tooling, or platform protection rather than one narrowly defined domain. The environment is highly engineering-led, with a strong preference for technically exceptional generalists who enjoy building, automating, and solving security problems through software and systems thinking. Successful candidates will typically come from a computer science or software engineering background before moving deeper into cybersecurity-focused engineering work.
This is a hands-on role within a collaborative, low-ego team where security is embedded directly into the engineering culture. The focus is less about rigid process ownership and more about bringing strong technical judgement, curiosity, and the ability to improve security through practical engineering solutions.
Key Responsibilities- Design and develop internal security tooling, automation, and defensive capabilities across the technology environment.
- Partner closely with software, infrastructure, and platform engineering teams to improve security across systems and workflows.
- Contribute across a broad range of security initiatives, including detection, hardening, threat analysis, infrastructure protection, and secure engineering practices.
- Investigate vulnerabilities, suspicious activity, and emerging threats, helping drive remediation and operational improvements.
- Build scalable solutions that improve visibility, detection quality, and security operations efficiency.
- Support security architecture and threat modelling discussions, helping teams make pragmatic, risk-aware decisions.
- Evaluate new attack techniques, tooling, and security research, translating relevant findings into actionable engineering improvements.
- Help strengthen security awareness and engineering best practices across the wider organisation.
- Continuously improve the balance between security, usability, and developer productivity.
- 3-7 years’ experience in security engineering, infrastructure security, or a related technical field.
- Strong computer science or software engineering foundations, with the ability to perform well in coding-focused interview processes.
- Strong programming or scripting ability (Python or similar), particularly around automation, tooling, or systems development.
- Experience building or contributing to security-focused software, tooling, platforms, or infrastructure.
- Broad understanding of security concepts across areas such as application security, infrastructure security, detection, threat modelling, or defensive engineering.
- Comfortable working as a technical generalist rather than within a highly siloed security function.
- Ability to reason clearly about security trade-offs and apply pragmatic engineering judgement.
- Experience working with version control, modern engineering workflows, and collaborative development practices.
- Strong communication skills and the ability to work effectively with highly technical stakeholders.
- (Preferred) Backgrounds combining software engineering experience with subsequent security-focused engineering work.
Security Engineer (Software Engineering Focus) | Quantitative Analysis and Trading Leader in City of London employer: Techfellow Limited
Contact Detail:
Techfellow Limited Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Security Engineer (Software Engineering Focus) | Quantitative Analysis and Trading Leader in City of London
✨Tip Number 1
Network like a pro! Reach out to folks in the industry on LinkedIn or at meetups. A friendly chat can open doors that a CV just can't.
✨Tip Number 2
Show off your skills! If you’ve got a portfolio of projects or contributions to open-source security tools, make sure to highlight them in conversations. It’s all about demonstrating what you can do!
✨Tip Number 3
Prepare for those technical interviews! Brush up on your coding skills and be ready to tackle real-world security problems. Practice makes perfect, so get coding!
✨Tip Number 4
Don’t forget to apply through our website! We’re always looking for talented individuals who are passionate about security engineering. Your next big opportunity could be just a click away!
We think you need these skills to ace Security Engineer (Software Engineering Focus) | Quantitative Analysis and Trading Leader in City of London
Some tips for your application 🫡
Show Off Your Skills: Make sure to highlight your software engineering background and any relevant security experience. We want to see how your skills align with the role, so don’t hold back on showcasing your coding prowess and problem-solving abilities!
Tailor Your Application: Take a moment to customise your application for this specific role. Mention how your experience relates to the key responsibilities listed in the job description. This shows us that you’ve done your homework and are genuinely interested in the position.
Be Clear and Concise: When writing your application, keep it straightforward and to the point. We appreciate clarity, so avoid jargon unless it’s necessary. Make it easy for us to see why you’re a great fit for the team!
Apply Through Our Website: Don’t forget to submit your application through our website! It’s the best way for us to receive your details and ensures you’re considered for the role. Plus, we love seeing applications come directly from our site!
How to prepare for a job interview at Techfellow Limited
✨Know Your Tech Inside Out
Make sure you brush up on your programming skills, especially in Python or similar languages. Be ready to discuss your past projects and how you've applied your coding knowledge to solve security problems.
✨Understand the Security Landscape
Familiarise yourself with current security threats and trends. Be prepared to talk about recent vulnerabilities or attack techniques and how they could impact the systems you'll be working on.
✨Showcase Your Problem-Solving Skills
During the interview, highlight your experience in building and automating security tools. Share specific examples of how you've improved security through practical engineering solutions in previous roles.
✨Communicate Effectively
Since this role involves collaborating with various teams, practice explaining complex security concepts in simple terms. Strong communication skills will help you connect with technical stakeholders and demonstrate your ability to work in a low-ego team environment.