Senior Platform Engineer in Cardiff

Hybrid / Flexible Working

Salary: Up £65,000 depending on experience + up to 20% annual bonus + benefitsStability, flexibility and the opportunity to work on greenfield projects within one of Europe\’s leading financial experts, does that sound interesting to you?

Job TitleSenior Platform Engineer

LocationCardiff

The RoleAs a Senior Platform Engineer at LDMS, you will be responsible for the cloud infrastructure that underpins our SaaS products and internal tooling. You will also be expected to help meet business requirements when needed across other technology streams such as Oracle Database & Middleware Administration and End User Computing.

The Right Candidate

Accomplishes tasks independently by planning possible solutions, implementing them and testing their correctness

Takes time to analyse existing infrastructure and propose improvements

Shares their knowledge and explains work to others by writing documentation

Provides guidance and mentoring to Junior Engineers in matters of technology, architecture and best practices

Explores new technologies by building proof‐of‐concept solutions

Understands that constant learning underpins good engineering

RequirementsEssential:

Ability to design, build, and operate cloud infrastructure that supports production services, with an understanding of how platforms evolve to meet changing technical and business needs

Strong hands‐on knowledge of core AWS services such as EC2, VPC, ECS, RDS, and IAM, alongside a practical understanding of cloud security, networking, and scalability

Proven use of Infrastructure‐as‐Code tools (for example, Terraform or similar) to deliver repeatable, version‐controlled, and well‐governed infrastructure

Familiarity with building and improving CI/CD pipelines that enable automated, reliable delivery of infrastructure and platform changes

Working knowledge of observability practices and tooling, including metrics, logging, and alerting, with an understanding of how observability supports reliable operations and incident response

Acts as a senior technical contributor, offering guidance, design input, and constructive review to other engineers, and helping shape shared engineering standards and approaches

Desirable:

Ability to automate tasks and workflows using a high‐level language such as Shell or Python

Working knowledge of Microsoft 365 services such as Entra ID, Intune, Defender, and Conditional Access, particularly in security‐conscious environments

Exposure to relational database platforms such as PostgreSQL or Oracle, including general administration and collaboration with application teams

Familiarity with networking concepts – VPCs, subnets, routes, gateways, firewall rules, NAT etc

OS Administration of Linux and Windows machines – including directly through command line and Ansible configuration management

Benefits

Discretionary Bonus (Up-to 20%)

25 days annual leave (plus bank holidays)

1 day Birthday leave

1 day Charity leave

Private Health Insurance

EAP

Pension (3% / 5% contribution)

Salary sacrifice – Bike & Electric Vehicle Scheme

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