Platform Engineer AWS C# or Python - Trading

Client Server Limited; St Albans; On-site; GBP 100,000 - 115,000; Full time

Benefits offered by this job

Bonus

25 days holiday

Enhanced parental leave

Contributory pension

Private medical

MSDN subscription

Gym & cinema discounts

Sabbatical after 10 years

Job summary

Client Server Limited in St Albans is seeking a Platform Engineer (AWS C# or Python) to help build and operate the platform underpinning trading applications. You will work with a small team to enable software engineers to develop, test and deploy.

The role blends software engineering with cloud infrastructure, embracing AI tooling and modern DevOps practices. Expect a hybrid role with 2–3 days WFH, core hours, and opportunities to impact high availability systems.

Qualifications

• Software engineering background with C# .NET and/or Python.
• Strong AWS experience and IaC, preferably Terraform.
• Solid Kubernetes experience and modern platform thinking.
• Hands-on with AI development tools and evolving AI practices.
• Experience building high availability systems.
• Automation-focused mindset improving developer experience.
• Collaborative, eager to learn and share knowledge.
• Degree in Computer Science or related field from a top university.

Responsibilities

• Build and operate the platform underpinning trading platforms.
• Develop tools and services to enable engineers to build, test and deploy.
• Collaborate across teams at the intersection of software, cloud infra and developer experience.
• Help embrace AI, evolve tooling and processes for AI agents and developers.
• Maintain high availability and robust operational practices.

Skills

C# .NET

Python

AWS

Terraform

Kubernetes

AI tooling

High availability

Automation

Developer experience

Collaboration

Education

Computer Science degree

Tools

Azure DevOps Pipelines

ArgoCD

OpenSearch

Grafana

Terraform

Job description

Platform Engineer AWS C# or Python - Trading

St Albans, Hertfordshire | £100k - £115k per year

Platform Engineer (AWS C# or Python) St Albans / WFH to £115k

Are you an infrastructure technologist with a software engineering background?

You could be progressing your career at a highly successful technology business that develops sophisticated platforms used to analyse and trade on global sports markets. You'll join a collaborative engineering team where your work will have a direct impact on business performance.

As a Platform Engineer you will collaborate with a small team to build and operate the platform underpinning its trading platforms, while developing the tools and services that enable software engineers to develop, build, test and deploy applications efficiently.

You'll join a highly impactful Platform Engineering team working at the intersection of software engineering, cloud infrastructure and developer experience. The team plays a central role in embracing AI, evolving engineering tools and processes to better support both developers and AI agents throughout the software development lifecycle.

There's a broad and modern technology estate including AWS, Linux, Kubernetes, Kafka, Redis / Valkey, HAProxy, Consul, Grafana, OpenSearch and Terraform, alongside development technologies including C# .Net, Python, Node.js, Bash and PowerShell. CI/CD tooling includes Azure DevOps Pipelines and ArgoCD.

Location / WFH:

You'll join colleagues in St. Albans, Hertfordshire (parking available), 10 minute walk from local station, with the flexibility to work from home 2-3 days a week in a hybrid model and flexible working hours within the core 0730-1730.

About you:

• You have previous Software Engineering skills, ideally C# .Net, Python
• You have strong experience with AWS and Infrastructure as Code, ideally Terraform
• You have strong Kubernetes experience
• You have a deep understanding of modern platform / cloud engineering
• You have hands-on experience using AI development tools and a good understanding of emerging AI engineering practices
• You have experience of working on high availability systems
• You have a pragmatic, automation focused mindset with a passion for improving developer experience
• You enjoy collaborating, learning new things and sharing knowledge
• You are degree educated in Computer Science or closely related discipline from a top tier university (e.g. Russel Group / Oxbridge)

What's in it for you:

As a Platform Engineer you will earn a competitive package:

• Salary to £115k
• Bonus
• 25 days holiday, rising to 30 after 2 years
• Enhanced parental leave
• Contributory pension scheme
• Private Medical
• MSDN subscription
• Discounts for gym membership, travel and cinema
• Sabbatical after 10 years of service