Junior Infrastructure Engineer

Mesh-AI Limited; Greater London; On-site; GBP 80,000 - GBP 100,000; Full time

Job description

iSAM is an innovative, financial technology firm specialising in quantitative trading, compromised of iSAM Funds and iSAM Securities.

iSAM Securities regulated by the FCA, SFC, and CTFC, and CIMA registered, is a leading algorithmic trading firm and trusted electronic market maker, providing liquidity, technology and prime services to institutional clients and trading venues globally. The firm offers full-service prime brokerage and execution via its cutting-edge proprietary technology, as well as market leading analytics, cleared through the group’s bank Prime Brokers.

iSAM Funds is an alternative asset manager specialising in systematic investing. Each strategy is unique, provides a specialist quantitative approach and is designed to deliver highly diversifying absolute returns for institutional portfolios.

We are looking for a passionate and driven junior engineer to join our growing Infrastructure team. This role is ideal for a recent Computer Science graduate who is eager to gain hands-on experience in infrastructure, CI/CD, automation, and modern cloud-native technologies.

As a Junior Engineer, you will work alongside experienced DevOps and Platform Engineers to support, develop, and improve the core infrastructure that powers our trading applications and research pipelines. You will gain exposure to high performance compute systems, CI/CD workflows, observability tools, and scalable architecture practices.

Responsibilities:

• Support and enhance infrastructure-as-code (IaC) solutions for provisioning and managing Linux servers with tools such as Ansible, Packer and Terraform.
• Help maintain and improve CI/CD pipelines to ensure fast, reliable, and secure software delivery.
• Collaborate with development teams to automate workflows and streamline deployments.
• Assist with monitoring, logging, and incident response for systems and services.
• Contribute to the documentation of systems, playbooks, and standard operating procedures.
• Troubleshoot and optimise data centre operations, addressing issues related to performance and hardware failures.

Qualifications:

• Bachelor’s degree in Computer Science or Software Engineering.
• Understanding of Linux fundamentals and system administration.
• Familiarity with at least one programming or scripting language (e.g., Python, Bash, Go).
• Basic understanding of version control systems, particularly Git.
• Eagerness to learn infrastructure technologies such as Docker and Kubernetes.

Preferred Skills & Knowledge:

• Basic foundation in networking, DNS, security principles, and debugging tools.
• Exposure to CI/CD concepts and tools (e.g., GitHub Actions, Jenkins, GitLab CI).
• Awareness of public cloud platforms such as AWS, Azure, or GCP.
• Interest in observability and monitoring tools (e.g., Prometheus, Grafana, ELK stack).

Personal Attributes:

• Clear communication – explains technical concepts concisely and effectively
• Adaptability – adjusts to new technologies and unexpected challenges
• Analytical thinking – breaks down complex issues logically and methodically
• Decision-making – balances speed and accuracy when making technical decisions
• Collaboration over competition – prioritises team success over individual wins
• Accountability – follows through on commitments and owns mistakes
• Patience – supports teammates as they learn or troubleshoot issues
• Open to feedback – accepts and applies suggestions for improvement
• Growth mindset – always looks for ways to improve skills and workflows
• Proactiveness – takes initiative instead of waiting for instructions

Why Join Us:

• A strong engineering culture that encourages experimentation and ownership.
• A supportive team that prioritises learning and mentorship.
• Access to cutting-edge tools and modern DevOps workflows.
• Opportunities to grow into more senior platform engineering roles.

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