About the Position
We are looking for an experienced Network Security Engineer who will help us maintain the team’s highest level of service and keep our network security levels ahead of our business demands, while pushing for more standardisation through automation.
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. Enabling those systems to operate in a secure and auditable manner is a key mission of the Network Security team.
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. Additional responsibilities of this role will include:
- Assessing our firewall policies against our security standards and business needs
- Working closely with our Cybersecurity team to mitigate threats and vulnerabilities
- Interacting with stakeholders to establish and push firewall policies
- Troubleshooting issues by analysing packet captures and reviewing audit logs
- Working closely with our Network Engineering team on DMZ designs and deployments
- Contributing to support tasks and actively taking steps to improve the team's ability to monitor our systems effectively, through scripting and/or conveying requirements to our dedicated developers
Getting the details right and keeping good records will be critical in this role. Striving to improve the team through documentation and contributing to our monitoring and automation systems will be a must.
About You
- Hands-on experience with firewall configuration and troubleshooting
- Strong understanding of network security principles and technologies (e.g., TCP, ARP, BGP, OSPF, DHCP, DNS)
- Experience designing a DMZ network
- Motivated to automate workflows to increase efficiency
- Strong ability to context switch and organise your workload
- Clear communication skills and a high degree of customer service
- 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
If you're a recruiting agency and want to partner with us, please reach out to [email protected].
Top Skills
What We Do
Jane Street works differently. As a liquidity provider and market maker, we trade on more than 200 trading venues across 45 countries and help form the backbone of global markets. Our approach is rooted in technology and rigorous quantitative analysis, but our success is driven by our people.
Our bright, beautiful offices in the heart of New York, London, Hong Kong, and Amsterdam are open and buzzing with conversation. We come from many backgrounds and encourage travel between offices to share perspectives. Some of our best ideas come from bumping into a visiting colleague at the office coffee bar.
Markets move fast. Staying competitive as we’ve grown has required constant invention—of new trading strategies, technology, and processes. We’ve found this is easier when you hire humble, kind people. They tend to help each other, and prioritize teamwork over titles.
We invest heavily in teaching and training. There’s a library and a classroom in every office, because deepening your understanding of something is considered real work. Guest lectures, classes, and conferences round out the intellectual exchanges that happen every day.
People grow into long careers at Jane Street because there are always new and interesting problems to solve, systems to build, and theories to test. More than twenty years after our founding, it still feels like we’re just getting started.
