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About the Role

We are looking for a Senior Virtual Desktop (Horizon) Engineer to operate, improve, and evolve a large-scale enterprise VMware Horizon environment. This is a hands-on, execution-focused role with strong emphasis on platform automation, repeatability, and data-driven decision making. You will be responsible for keeping the platform stable and improving its operation over time through automation, standardization, and evidence-based optimization.

Responsibilities

Operate and support production VMware Horizon (Omnissa) environments
Own and execute Horizon platform upgrades (agents, pods, components) with minimal user impact
Troubleshoot and remediate performance, stability, and user-experience issues using metrics and evidence
Diagnose and resolve authentication and login-related issues (AD, GPOs, certificates, SSO, MFA integrations)
Design and implement automation and repeatable processes using PowerShell, APIs, and infrastructure-as-code principles
Use monitoring and operational data to drive capacity planning, tuning, and remediation decisions
Work closely with infrastructure, networking, and security teams on cross-domain issues and improvements
Analyze and address resource contention across compute, memory, storage, network, and vGPU
Participate in remediation initiatives related to performance degradation, login latency, session instability, and user-impacting incidents
Continuously reduce manual operational effort through scripting, standardization, and platform improvements

Requirements

7+ years of real production experience as a senior Horizon engineer
Comfortable taking ownership of both technical outcomes and operational quality
Bring automation and infrastructure-as-code thinking to improve reliability and consistency
Troubleshoot, optimize, and justify changes with data
Execution-focused with a strong bias toward fixing root causes instead of symptoms
Stay calm and methodical under pressure, especially during incidents
Communicate clearly, explaining technical decisions with evidence and impact

Skills

VMware Horizon
PowerShell
APIs
Infrastructure-as-code

Location

Sydney

Work Type

Full-time

Experience Level

Senior

Benefits

Performance-based bonus structure
Training, mentorship and personal development opportunities
Daily breakfast, lunch and an in-house barista
Gym membership plus weekly in-house chair massages
Regular social events, including a company trip every two years
Guided relocation, a competitive relocation package and visa sponsorship where necessary

About the Company

Optiver is a global market maker founded in Amsterdam, with offices around the world.
Established in 1986, Optiver is a leading liquidity provider with close to 2,000 employees globally.
We improve the market through competitive pricing, execution, and risk management.
We provide liquidity to financial markets using our own capital, trading a wide range of products.
Optiver’s Sydney office is one of the primary players within Asian markets, trading a range of products.
Established in 1996, the Sydney office is an active participant on the Hong Kong, Korea, Singapore, Taiwan and Japan exchanges, and acts as Optiver’s APAC head office.

Equal Opportunity

Optiver is committed to diversity and inclusion.
We encourage applications from candidates of all backgrounds, and welcome requests for reasonable adjustments during the process.