Senior Infrastructure Engineer
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Job Description
Senior Infrastructure Engineer scaling secure Kubernetes and cloud infrastructure for VALR, a global crypto exchange. Improving reliability, automation, observability, and secure software delivery.
Responsibilities:
- Design, build, and maintain secure, scalable, and highly available cloud infrastructure
- Manage and continuously improve production Kubernetes environments
- Implement and maintain infrastructure-as-code, GitOps, and CI/CD practices
- Improve the reliability, performance, resilience, and observability of VALR’s platform
- Automate infrastructure operations and eliminate repetitive manual processes
- Participate in the on-call rotation, respond to production incidents, and contribute to post-incident reviews
- Troubleshoot complex infrastructure, networking, security, and deployment issues
- Apply security best practices across infrastructure, access controls, and secrets management
- Collaborate with Engineering and Security teams to support reliable and secure software delivery
- Improve infrastructure standards, documentation, and processes while providing technical guidance to other team members
Requirements:
- Extensive experience working in infrastructure, platform engineering, DevOps, site reliability engineering, or a related field
- Strong experience with at least one major public cloud platform, such as AWS, Google Cloud Platform, or Microsoft Azure
- Extensive hands-on experience running and supporting Kubernetes in production
- Strong understanding of Docker and container-based environments
- Experience with Kubernetes templating and configuration tools such as Helm and Kustomize
- Practical experience with GitOps principles and tools such as Argo CD or Flux
- Strong experience using infrastructure-as-code tools such as Terraform or Pulumi
- Experience designing and maintaining CI/CD pipelines using GitLab, GitHub, or similar platforms
- Strong knowledge of Linux systems and command-line tools
- Understanding of networking fundamentals, including DNS, TCP/IP, HTTP, TLS, load balancing, proxies, and firewalls
- Experience with monitoring and observability tools such as Prometheus and Grafana
- Experience participating in incident response and on-call processes using tools such as PagerDuty
- Strong automation and scripting skills, particularly using Bash or similar languages
- Understanding of infrastructure security, including IAM, secrets management, access controls, and least-privilege principles
- Proficiency in using AI tools such as Claude or Codex for technical work, with understanding of security and verification considerations
- Strong troubleshooting and problem-solving abilities in complex production environments
- Ability to work independently, take ownership of technical outcomes, and collaborate effectively across teams
Benefits:
- Innovative work environment with access to the latest blockchain technologies and tools
- Work from anywhere with secure, stable internet connectivity
- Annual professional development allowance
- Scheduled company training sessions
- Competitive salary
- Discretionary bonuses
- Preferential Tier 5 trading fees with no monthly trading volume required
- Diversity, equity, and belonging initiatives
- Statutory leave required by individual countries
- Flexible leave options
- Lunch provided when working from the Johannesburg Head Office
- Social gatherings outside of work
- Company retreats combining professional development and team bonding
- Mac laptop
- Discretionary allowance for home-office extras, with equipment kept after three years (terms and conditions apply)
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