Network Security Engineer (12-month contract)

Optiver is a global market maker founded in Amsterdam, with offices in London, Chicago, Austin, New York, Sydney, Shanghai, Hong Kong, Singapore, Taipei and Mumbai. Established in 1986, today we are a leading liquidity provider, with close to 2,000 employees in offices around the world, united in our commitment to improve the market through competitive pricing, execution and risk management. By providing liquidity on multiple exchanges across the world in various financial instruments we participate in the safeguarding of healthy and efficient markets. We provide liquidity to financial markets using our own capital, at our own risk, trading a wide range of products: listed derivatives, cash equities, ETFs, bonds and foreign currencies.

Optiver’s Sydney office is one of the primary players within Asian markets, trading a range of products. Established in 1996, we're an active participant on the Hong Kong, Korea, Singapore, Taiwan and Japan exchanges, and act as Optiver’s APAC head office. 

Our engineers are directly responsible for the infrastructure underpinning all of Optiver's trading and non-trading activity in general, including office networks and a complex WAN environment. We are providing a reliable, fast and well supported network and Unix platform to run our core business on, this requires a good understanding of not only the technical network problem but also the broader business problem being solved. This team is successful when they are collaborating and solving complex problems with simple solutions and are constantly making optimizations in reliability, capacity, scalability and latency. Your responsibilities will include:

• Support end-to-end infrastructure deployments in Asia Pacific data centers including but not limited to network and security platforms
• Build, manage and support our complex international LAN/WAN & security environment 
• Drive research, innovation, and implementation of infrastructure capacity and reliability optimizations in our Infrastructure environment 
• Collaborate with developers, researchers and our hardware engineers on projects that require a stable and scalable platform to operate on 
• Automate, monitor, and benchmark our various networks and systems 

• An Australian or New Zealand Citizen, Australian Permanent Resident or able to provide evidence of full working rights
• 7+ years of working experience as a network security engineer, troubleshooting complex network and security issues
• Experience in designing, implementing and supporting zone based firewalls and associated firewall technology with Checkpoint and Palo Alto firewalls
• Experience in working in a multi zone, multi tier firewall architecture across APAC
• Experience in managing Unix systems
• Experience in monitoring and managing diverse international WAN networks 
• Able to monitor, debug, troubleshoot issues arising in LAN/ WAN's and Firewall infrastructure

• The chance to work alongside diverse and intelligent peers in a rewarding environment
• Competitive remuneration and additional leave entitlements
• Training, mentorship and personal development opportunities
• Gym membership plus weekly in-house chair massages
• Daily breakfast, lunch and an in-house barista
• Regular social events including an annual company trip