Network Engineer
- Level
- Senior
Not stated in the posting: salary, work type, visa.
Open. First seen 3 October 2026.
About the role
WHO WE ARE
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.
WHAT YOU'LL DO
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
Drive research, innovation, and implementation of infrastructure capacity and reliability optimizations in our Infrastructure environment
- Build, manage and support our complex international LAN/WAN & security environment using modern tooling in an IaC (Infrastructure as Code) 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
WHO YOU ARE
10+ years of working experience as a senior network engineer or architect with proven on-box experience, designing, implementing and troubleshooting complex LANs and WANs.
Experience designing, implementing and supporting Campus LAN networks, ideally on Arista and Cisco products
- Experience in managing network systems using Infrastructure as code (IaC) methodology
Experience working in a multi zone, multi tier firewall architecture across APAC
Experience designing, implementing and supporting DC environments.
Experience administrating Unix systems
Experience in monitoring and managing diverse international WAN networks
WHAT YOU'LL GET
You’ll join a culture of collaboration and excellence, where you’ll be surrounded by curious thinkers and creative problem solvers. Driven by a passion for continuous improvement, you’ll thrive in a supportive, high-performing environment alongside talented colleagues, working collectively to tackle some of the most complex problems in the financial markets.
In return for your expertise, you will be offered a competitive salary package as well as access to a range of Optiver perks, including:
- The chance to work alongside best-in-class professionals
- 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 a company trip every two years
Optiver is committed to diversity and inclusion, and it is hardwired through every stage of our hiring process. We encourage applications from candidates from any and all backgrounds, and we welcome requests for reasonable adjustments during the process to ensure that you can best demonstrate your abilities.
Questions? Get in touch with the recruitment team at careers@optiver.com.au.Optiver takes the protection of your personal information seriously and is committed to keeping your personal information safe and confidential. For full details about how Optiver uses your personal information in our recruitment process, please see our Privacy Policy.
I give permission to Optiver to contact me by email about Optiver roles, company updates, recruitment activities, and events relevant to my career. If you would prefer that we do not retain your personal information for this purpose please let us know by emailing us at careers@optiver.com.au.
What this role asks for
Particular to this role
Cisco · Networking · Unix
Rare in Optiver's other 92 open postings.
Compared with Optiver's other open jobs.
The team: Infrastructure
This role is one of 18 open in Infrastructure.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Linux (9 of 18), CI/CD (8 of 18), Python (7 of 18), Terraform (6 of 18), Cisco (5 of 18), Grafana (4 of 18), Networking (4 of 18)
OTHER ROLES ON THIS TEAM
- Linux Systems Engineer - Bare Metal & Kubernetes posted Sep 8
- Senior Network Engineering Lead (APAC) posted Aug 24
- Production Operations Engineer (Trading Systems / SRE / Application Support) posted Jul 21
- Production Operations Engineer (Trading Systems / SRE / Application Support) posted Jun 23
- Data Center Engineer posted Jun 23
- Network Operations Engineer - Contract posted Jun 22
- Data Center Engineer posted Jun 22
- Data Center Engineer posted Jun 15
- Data Center Engineer posted Jun 10
- Data Center Engineering Lead - Europe posted May 29
- Enterprise Infrastructure Engineering Lead posted May 19
- Network Engineer posted May 4
- Linux Systems Engineer - Bare Metal & Kubernetes posted May 4
- Senior Production Software Engineer posted May 1
- Production Software Engineer - Senior/Staff/Principal posted Mar 18
- Cloud Infrastructure Engineer - Digital Assets posted Mar 11
- Senior Information Security Engineer posted Dec 18
From the team and dates on Optiver's own job board.
Salary context
35 other open postings titled Network Engineer state a salary: median USD 105,000 to USD 166,850 a year.
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