Senior Infrastructure Engineer (AWS, Azure, GCP, Terraform)

Due to the nature of the projects and specific client security clearance, this role requires the successful candidate to be a Singapore Citizen or PR of Singapore. Senior Infrastructure Engineers within Enterprise Modernization, Platforms and Cloud (EMPC) at Thoughtworks are strategic technical engineers and trusted advisors who direct solution architecture and enterprise infrastructure strategy for complex, large-scale modernizations. They are comfortable working within teams of people with diverse roles and levels of experience to find solutions that meet the needs of the organization. They combine technical expertise and understanding with consideration of different situational needs. They champion technical quality and effective ways of working as a means to better outcomes for clients, rather than an end in themselves. They help clients to understand agile ways of working and DevOps as a mindset for collaboration. Job responsibilities You will act as a trusted technical advisor to senior client executives, guiding multi-year infrastructure strategy, platform engineering, and cloud transformation roadmaps under the EMPC practice. You will champion DevOps philosophies, Infrastructure as Code (IaC), continuous delivery for infrastructure, and Site Reliability Engineering (SRE) practices across client engagements. You will work within teams to launch projects through hands-on implementation, evaluate existing infrastructure and drive improvements. You will explore the client’s needs and collaborate on building a technical roadmap and impactful solution that will support their ambitious business goals. You will help shape and build Thoughtworks’ cloud and infrastructure practice through collaboration with other practitioners, business development, marketing and capabilities development teams. You will ensure and build the controls and processes for continuous delivery and evolution of infrastructure and applications, driving automation through all stages of the process. You will take a proactive role in monitoring and ensuring that technical expectations of deliverables are consistently met on projects. You will provide expertise and guidance in the areas of DevOps, cloud, platform and infrastructure engineering, both internally and in client sites. You will establish trusting and thoughtful partnerships with a client’s engineering leadership. You will adjust and suggest innovative solutions to current constraints and business policies. Job qualifications Technical Skills You have an extensive track record in platform engineering, legacy modernization, and cloud architecture across major IaaS platforms ( AWS, Azure, or GCP ) and enterprise container orchestration platforms like Kubernetes. You possess deep technical mastery in Infrastructure as Code (IaC) tools (e.g.,Terraform, CloudFormation) , automated configuration management, and modern CI/CD delivery pipelines. You bring expertise in enterprise networking, platform vulnerability management, zero-trust security paradigms, and software supply chain security. You have hands-on experience designing and implementing observability systems, multi-cloud resilience and Site Reliability Engineering. You bring an open and thoughtful mindset toward emerging technologies and AI, proactively exploring AI-assisted platform automation, predictive operations, and intelligent telemetry. You can contribute to the design and implementation of enterprise and/or web-scale hosting platforms and can administer application servers, web servers, and databases. You can write scripts using at least one scripting language, with Golang experience being a plus. You have experience working with software delivery teams, and understand DevOps philosophies, Agile methods, Infrastructure as Code and how to apply them to your work. You have a history of working with at least one IaaS cloud platform, and two or more application runtime platforms in