Network Operations Engineer (12-month contract)

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 

Optiver is seeking a Network Engineer (Operations) with a passion for solving complex problems, optimizing performance, and reducing network complexity. As part of a team that manages the infrastructure for our proprietary trading systems, you will directly contribute to the design, optimization, and maintenance of globally distributed networks that are critical to our low-latency trading operations. Speed, reliability, and scalability are at the center of everything we do, and your work will have a direct impact on the performance of our market-making activities. Your responsibilities will include but not be limited to:

• Providing technical expertise to support a high-frequency trading environment
• Automating and monitoring network infrastructure, reducing manual interventions
• Supporting end-to-end infrastructure deployments, including network and UNIX platforms, across data centers and global WAN environments
• Assisting with planned upgrades and maintenance (migrations, expansions, hardware and software upgrades)
• Ensuring proper function of WAN networks across data centers and colocations
• Contributing to capacity planning, connectivity improvements, and traffic flow optimization
• Driving research and innovation to improve infrastructure reliability and performance, including evaluating bleeding-edge technology for use in the trading stack
• Contributing to the ongoing standardization of our environments & our Infrastructure as Code vision
• Collaborating with developers, researchers, and hardware engineers on projects requiring a stable and scalable platform

WHO YOU ARE

• 5+ years of working experience as a network engineer
• Strong knowledge of network performance, monitoring, and capacity planning
• Experience in monitoring and managing diverse international WAN networks
• Able to monitor, debug, troubleshoot issues arising in LAN/ WANs
• Proficiency in network transport and routing protocols (TCP/UDP, OSPF, BGP, Multicast)
• Comfortable working with multi-vendor environments (Cisco, Arista, Palo Alto)
• Experience with L2/L3 networking, firewalls, and network security
• Ability to coordinate with 3rd parties and manage projects end-to-end
• Familiar with Unix systems and data center management
• Certifications like Arista ACE level 3, PCNSE, Cisco CCIE, CCNP or beyond are a plus

WHAT YOU'LL GET

• 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

As an intentionally flat organisation, we believe that great ideas and impact can come from everyone. We are passionate about empowering individuals and creating diverse teams that thrive. Every person at Optiver should feel included, valued and respected, because we believe our best work is done together.

Our commitment to diversity and inclusion 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.