Senior Infrastructure Engineer (AWS, K8S, GitOps)

About the role

Thoughtworks is looking for a Senior Infrastructure Engineer to help clients build and evolve the systems they use to deliver and run software. The role suits someone who works well in teams of diverse roles and levels, champions technical quality and helps clients adopt agile ways of working and DevOps as a mindset for collaboration. Because of project nature and client security clearance, the successful candidate must be a Singapore citizen or PR.

Key responsibilities

• Work within teams to launch projects through hands-on implementation, evaluate existing infrastructure and drive improvements.
• Explore client needs and collaborate on a technical roadmap and solution supporting their business goals.
• Help shape and build Thoughtworks' cloud and infrastructure practice with business development, marketing and capabilities teams.
• Build controls and processes for continuous delivery and evolution of infrastructure and applications, driving automation.
• Monitor projects so technical expectations are consistently met, and give expertise in DevOps, cloud, platform and infrastructure engineering.
• Build trusting partnerships with client engineering leadership and propose innovative solutions to constraints and business policies.

Required profile

• Singapore citizenship or PR.
• Experience designing and implementing enterprise and web-scale hosting platforms, administering application, web and database servers.
• History of working with at least one IaaS cloud platform and two or more application runtime platforms (physical servers, virtual servers, container clusters, serverless, databases).
• Experience with CI/CD tools, monitoring systems, and security concerns such as secrets management, network security and software supply chain security.
• Comfortable partnering with infrastructure technicians, support and network analysts, security analysts, system administrators and IT managers, and adapting to change with limited information.

Required skills

• Hands-on AWS experience; deep understanding of cloud, virtualization and infrastructure automation.
• Kubernetes, container orchestration and GitOps practices.
• Scripting in at least one language (Golang a plus); Linux, Windows or container cluster administration.
• Infrastructure as Code, Agile methods and DevOps philosophies.
• Bonus: AI agentic development, unit testing, automated testing, stress and performance testing.