Network Security Engineer

Network Security Engineer

Full-Time 51750 - 63250 £ / year (est.) No working from home possible
Janestreet

At a Glance

  • Tasks: Join our Network Security team to enhance and secure our network infrastructure.
  • Company: Dynamic firm with a culture of collaboration and continuous improvement.
  • Benefits: Competitive salary, flexible work environment, and opportunities for professional growth.
  • Other info: Join a team that values intellectual humility and innovative ideas.
  • Why this job: Make a real impact on network security while working with cutting-edge technology.
  • Qualifications: 7+ years in network infrastructure, strong troubleshooting skills, and a collaborative mindset.

The predicted salary is between 51750 - 63250 £ per year.

We are looking for an experienced Network Engineer to join our Network Security team to help us run, scale and continuously improve our network security infrastructure through hands-on operations, design, and implementation. The ideal candidate would have strong networking fundamentals and experience with security appliances such as firewalls and proxy.

Jane Street’s numerous distributed systems are built on an agile, reliable, multi-vendor network infrastructure that supports all traffic profiles, from trading to internet connectivity. Supporting such a large multi-function network requires advanced tooling for monitoring and automation. Strong communication and interpersonal skills will be needed to collaborate with colleagues across the firm globally.

You will find and resolve issues, plan and execute deployments, and improve systems where possible. In this role, we’ll look to leverage your advanced networking skills and security knowledge to:

  • Work closely with Network Engineering on design and deployment of security perimeter and adjacent network infrastructure
  • Effectively manage and continuously evolve network segmentation, DMZ, and other aspects of network security
  • Evaluate and lab test new platforms for our network security infrastructure
  • Collaborate with Cybersecurity on detection and mitigation of threats and vulnerabilities on our network
  • Interface with application owners and traders to enable business workflows in a secure way
  • Proactively enhance support by improving network infrastructure observability, scripting, and communicating requirements to our software engineers
  • Improve our network security processes and documentation

A holistic approach to system design is critical for this role. The Networking department prioritises flexibility, compatibility, and efficiency when crafting solutions, all while seeking ongoing buy-in and feedback from users across the firm. Our firm’s culture prizes intellectual humility, openness, and continuous improvement, which translates directly to the daily work of this team. We’re all partners working towards shared goals and are always looking for the next best idea that will make our work stronger.

Your strong communication skills and analytical thinking will be invaluable as we support the daily work of our colleagues and keep our systems operating at the highest standard.

About You:

  • 7+ years of experience operating and deploying network infrastructure
  • Experience with routing and network protocols (OSPF, BGP, PIM-SM)
  • Experience troubleshooting transport protocols (TCP/UDP)
  • Strong understanding of firewall hardware architecture, performance metrics, and its functional components
  • Experience with firewall configuration and troubleshooting
  • Understanding of Public Key Infrastructure and related technologies
  • Understanding of modern encryption techniques
  • High capacity to learn; we are interested in how you think, not just what you know
  • Ability to context switch, while still being able to prioritise and organise your stack
  • Ideally experience with overlay networks (EVPN, VxLAN)
  • A flexible and reliable team player who enjoys working in a collaborative environment
  • Proficiency in a programming language is preferred
  • Fluency in English is required

Network Security Engineer employer: Janestreet

Jane Street is an exceptional employer located in Greater London, offering a dynamic work culture that fosters collaboration and innovation. Employees benefit from engaging projects in finance tech, opportunities for professional growth, and a commitment to using cutting-edge technology. With a focus on intellectual curiosity and teamwork, Jane Street provides a rewarding environment for those passionate about software engineering.

Janestreet

Contact Details:

Janestreet Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Network Security Engineer

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 Janestreet, 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 Janestreet

Don’t forget to head straight to our website and check out any openings for cybersecurity roles at Janestreet. 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 Network Security Engineer

Network Security
Firewall Configuration
Routing Protocols (OSPF, BGP, PIM-SM)
Transport Protocols (TCP/UDP) Troubleshooting
Public Key Infrastructure
Modern Encryption Techniques
Overlay Networks (EVPN, VxLAN)

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 Janestreet 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 Janestreet that you’re committed to staying ahead in the game.

How to prepare for a job interview at Janestreet

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 Janestreet 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 Janestreet.

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.