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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. Founded in 2021, Optiver's Singapore location is our ninth global office. As a fast-growing office, we have the feel of a start-up, but the backing of a large multinational trading firm. In Asia Pacific, Optiver was one of the first global market makers to establish a presence in the region, with the incorporation Optiver's APAC head office in Sydney in 1996. Since then, we have expanded our footprint by establishing offices in Taipei (2005), Hong Kong (2007) and Shanghai (2012). WHAT YOU' LL  DO  Our Network operations 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.   A performance-based bonus structure unmatched anywhere in the industry. We combine our profits across desks, teams and offices into a global profit pool, fostering a truly collaborative enviro