🎁 Before you apply, rehearse this interview. Create your free WorkMundi account and get an Interview Training on HelpsYouSpeak — no cost, no card. I want my training →
About the Position 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 will 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. We’ll also look to leverage your advanced networking skills and security knowledge to: Work closely with our Network Engineering team on the design and deployment of security perimeter and adjacent network infrastructure 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 our Cybersecurity team on the detection and mitigation of threats and vulnerabilities on our network Interface with application owners and traders to enable business workflows securely Proactively enhance support by improving network infrastructure observability and 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. Our broader Networking team prioritizes 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 toward 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 Have 7+ years of experience operating and deploying network infrastructure Experienced with routing and network protocols (OSPF, BGP, PIM-SM) Experienced with troubleshooting transport protocols (TCP/UDP) Have a strong understanding of firewall hardware architecture, performance metrics, and functional components Experienced with firewall configuration and troubleshooting Understand Public Key Infrastructure and related technologies Understand modern encryption techniques Have a high capacity to learn; we are interested in how you think, not just what you know Able to context-switch, while still being able to prioritize and organize your stack Ideally have experience with overlay networks (EVPN, VxLAN) A flexible and reliable team player who enjoys working in a collaborative environment Preferably have proficiency in a programming language Fluency in English required If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com .
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.