Junior Systems Support Engineer - Selby Jennings - #2089272

Our client, a leading proprietary trading firm in the digital asset space, is looking for a Junior Systems Support Engineer. In this role, you will support a multi-region, high-frequency trading environment while collaborating closely with development and infrastructure teams to build and enhance a highly available data extraction platform. You will also play a key role in maintaining and optimising a multi-cloud setup underpinning a mission-critical trading system.

The ideal candidate will have hands-on production experience within a cloud environment, supported by strong fundamentals in infrastructure, Linux, and networking. You will bring a commercial mindset, strong problem-solving ability, and a clear ambition to grow within a highly technical, fast-paced environment at the forefront of trading and technology.

Responsibilities

• Act as the infrastructure SME for a 24/7 globally distributed, multi-region high-frequency web scraping platform
• Drive and own performance optimisation and process improvements across the full platform lifecycle
• Collaborate closely with development teams on architecture, prioritisation, and system design
• Manage and improve multi-cloud infrastructure, including vendor evaluation and best-practice implementation

Requirements

• 2+ years' experience in Infrastructure, DevOps, or Platform Engineering roles
• Proven production experience in global cloud environments (AWS + strong multi-region/networking expertise)
• Strong Linux and networking fundamentals, including performance tuning and optimisation
• Scripting/development experience (e.g. Bash, Python, Java, C#, Rust, or VBA)
• Degree in Computer Science, Engineering, or a relevant STEM discipline
• Experience in Data Extraction desirable