Senior Platform Engineer

Laser Digital group; City of London; On-site; GBP 65,000 - 90,000; Full time

Job summary

A blockchain technology company based in London is looking for a Senior Platform Engineer. This role focuses on designing and managing scalable cloud infrastructure for cryptocurrency trading. Candidates should have expert AWS knowledge, strong skills in Terraform, Kubernetes, and automation tools. The expected salary range is £65,000 – £90,000 per annum, and the position is full-time.

Qualifications

• Expert-level knowledge of AWS services.
• Advanced proficiency in Terraform and Terragrunt.
• Strong experience with Kubernetes and EKS.

Responsibilities

• Architect and manage scalable cloud infrastructure on AWS.
• Implement EKS clusters for containerized workloads.
• Develop CI/CD pipelines for automated infrastructure.

Skills

AWS knowledge

Terraform

Kubernetes

Ansible

Python scripting

Prometheus

Grafana

GitLab CI/CD

Education

AWS Professional Certification

Job description

We’re seeking an exceptional Senior Platform Engineer to join our Platform Engineering team during a period of significant growth. This project‑focused role involves designing, building, and maintaining the infrastructure that supports high‑performance cryptocurrency trading operations and digital asset management.

Key Responsibilities

• Architect, deploy, and manage scalable cloud infrastructure across multi‑account AWS environments.
• Design and implement EKS (Elastic Kubernetes Service) clusters for containerized workloads.
• Build infrastructure‑as‑code using Terraform/Terragrunt for all AWS resources.
• Develop and maintain GitLab CI/CD pipelines for automated infrastructure deployments.
• Create self‑service deployment capabilities for developers and quantitative researchers.
• Build cryptocurrency‑specific infrastructure (wallet integrations, blockchain connectivity).

Observability & Reliability (20%)

• Implement comprehensive monitoring using Prometheus and Grafana.
• Deploy and maintain OpenSearch for centralized logging with FluentBit agents.
• Optimize infrastructure for low‑latency trading applications.
• Diagnose and resolve performance issues on Linux systems.
• Ensure high availability and disaster recovery capabilities.
• Create meaningful alerts balancing signal‑to‑noise ratio.

Security & Compliance (10%)

• Implement security best practices across infrastructure and applications.
• Work with Security team through formal Jira workflows (treated as internal client).
• Ensure compliance with regulatory requirements (FCA, VARA, ADGM).
• Manage secrets and keys for cloud infrastructure.
• Partner with Rust developers, quantitative researchers, and data engineers.
• Maintain detailed technical documentation.
• Create architecture diagrams and system design documents.
• Mentor junior engineers through code reviews and knowledge sharing.
• Act as subject matter expert for infrastructure design and best practices.

Required Qualifications

Technical Skills (Must‑Have)

• Expert‑level AWS knowledge and deep understanding of AWS services, including VPC, Transit Gateway, EKS, EC2, S3, RDS, Lambda.
• Advanced proficiency in Terraform and Terragrunt.
• In‑depth knowledge of Kubernetes and EKS cluster management.
• Strong proficiency in Ansible for server configuration management.
• Advanced Python scripting for automation and tooling.
• Hands‑on experience with Prometheus, Grafana, and ELK stack.
• Experience with GitLab CI/CD pipelines and GitOps (ArgoCD).

Critical Soft Skills

• Architectural thinking: ability to design scalable, resilient systems.
• Stakeholder management: communicate effectively with traders, developers, executives.
• Autonomous ownership: self‑motivated, takes initiative, drives projects independently.
• Clear communication: articulate complex technical concepts to non‑technical stakeholders.
• Project management: plan, prioritize, deliver on time with competing priorities.
• Innovation mindset: creative problem‑solving for novel challenges in crypto space.

Desired Qualifications

• AWS Professional Certification (Solutions Architect or DevOps Engineer).
• Experience with cryptocurrency infrastructure (exchanges, wallets, blockchain nodes).
• Palo Alto firewall management experience.
• Experience with Fireblocks or similar MPC (multi‑party computation) solutions.
• Financial services infrastructure experience (trading, market data, exchange connectivity).
• Co‑location and data center operations experience.
• Low‑latency system design and optimization.
• Regulatory compliance implementation (FCA, MiFID II, GDPR).
• Service mesh technologies (Istio, Linkerd).
• HashiCorp Vault or similar secrets management platforms.

Location: London, England, United Kingdom

Salary: £65,000 – £90,000 per annum

Seniority Level: Mid‑Senior level

Employment Type: Full‑time

Job Function: Financial Services, Investment Banking, and Investment Management

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