A leading systematic trading firm is seeking a Platform and Application Engineer to join a team responsible for the onboarding, operation, and continuous improvement of business-critical third-party platforms. The role involves supporting and operating a broad range of third-party platforms across AWS, SaaS, and on-premise environments. The ideal candidate will have 3+ years of experience in Platform Engineering, DevOps, or a similar role.
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Technical Skills Required
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Job Description
Platform & Application Engineer – Systematic Trading Firm | London
A leading systematic trading firm is seeking an Application Platform Engineer to join a team responsible for the onboarding, operation, and continuous improvement of business-critical third-party platforms used across the organisation.
This is a highly varied role sitting at the intersection of Platform Engineering, DevOps, Site Reliability Engineering, and Application Support. The team owns a diverse estate spanning AWS, SaaS, and Linux/Windows on-premise environments, supporting everything from market data platforms and observability tooling through to collaboration and AI-enabled services.
You'll work closely with traders, quantitative researchers, developers, infrastructure teams, and external vendors, ensuring critical platforms remain reliable, scalable, and operationally efficient.
The Role:
- Support and operate a broad range of third-party platforms across AWS, SaaS, and on-premise environments
- Own the onboarding, configuration, maintenance, and continuous improvement of business-critical applications
- Manage platforms such as market data services, observability tooling, reporting platforms, collaboration tools, and AI-enabled services
- Design and maintain highly available application environments with a focus on performance and operational stability
- Troubleshoot issues across Linux, Windows, networking, cloud, and application layers
- Work directly with vendors and internal stakeholders to resolve incidents and improve platform reliability
- Perform root cause analysis and implement long-term engineering solutions
- Develop automation and tooling to reduce manual effort and improve operational efficiency
- Build monitoring, observability, and operational controls across the application estate
- Contribute to the evolution of engineering standards, operational processes, and platform governance
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Requirements:
- 3+ years' experience within Platform Engineering, DevOps, Site Reliability Engineering, Linux Engineering, App Support, or a similar role
- Strong Linux administration and troubleshooting capability
- Experience supporting production platforms within complex technical environments
- AWS experience, ideally including services such as ECS, RDS, and IAM
- Experience with Infrastructure-as-Code and configuration management tools such as Terraform and Ansible
- Strong scripting and automation skills using Python, Bash, or PowerShell
- Experience with monitoring and observability platforms such as Grafana, Splunk, Prometheus, or similar
- Understanding of networking fundamentals and application connectivity troubleshooting
- Experience working with Git-based workflows and modern engineering practices
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Desirable:
- Experience supporting market data platforms
- Exposure to SaaS platform administration
- Financial services experience
- Familiarity with GitHub, Slack, OpsGenie, and related tooling
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Company Highlights:
- Technology-led culture – drives both trading and internal engineering investment
- Significant growth across compute, storage, and networking platforms creating a strong pipeline of upcoming projects
- Opportunity to work on challenging infrastructure and platform engineering problems within a large-scale HPC environment
- c.2,000 employees – large enough for scale, small enough for meaningful individual impact
- Brand-new London HQ with free on-site gym
- Flat organisational structure with direct exposure to senior technical leadership
- Highly collaborative culture with close interaction between engineering, research, and trading functions
- Excellent Glassdoor ratings consistently citing a strong work-life balance
- Strong focus on innovation, automation, and engineering excellence
- Benefits: Free breakfast & lunch, 13% pension, year-one guaranteed bonus, work abroad allowance, private healthcare, relocation packages, and more.
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