Jin

Senior DevOps, Cloud Platform, ML and AI Engineer

Apr 2015 - Present • 11 yrs 6 mos

● Cloud & Platform Engineering: Designed and built production AWS EKS platforms from the ground up, establishing reusable platform capabilities and Infrastructure as Code practices for secure, scalable, and consistent environments. ● GitOps & CI/CD: Architected enterprise GitOps workflows using ArgoCD, CircleCI, Bitbucket, and AWS EKS. Built automated deployment and multi-tenant provisioning pipelines, enabling independent releases while improving consistency and reducing deployment conflicts. ● DevSecOps & Security: Designed Zero Trust architecture using Okta, OIDC/SAML, and AWS Verified Access. Implemented security and compliance controls supporting successful SOC 2 Type I and II certification and ongoing compliance. ● Reliability & Observability: Implemented disaster recovery-as-code and automated recovery processes, achieving RPO/RTO targets below 50% of audited requirements. Established centralised observability with ELK, APM, and CloudWatch to improve visibility and incident response. ● AI Identity & Security: Designed secure identity architecture enabling AI agents to access private APIs through MCP. Integrated Okta and Auth0 for authentication and token exchange, enabling agents to act on behalf of users with end-to-end identity traceability. ● Infrastructure & Cost Optimisation: Led FinOps across AWS, Databricks, MongoDB Atlas, and SageMaker, reducing infrastructure costs by ~40% through rightsizing, autoscaling, capacity planning, and Reserved/Spot Instances. ● AI & MLOps: Built an enterprise MLOps pipeline from Databricks to AWS SageMaker, recognised by AWS as a best-practice implementation. Deployed self-hosted n8n and Langfuse for AI automation, LLM observability, tracing, and cost management. ● Engineering Enablement: Mentored development, platform, and operations teams, promoting DevSecOps, automation, observability, testing, and production ownership while establishing reusable engineering standards and platform capabilities.

Senior Software Engineer

Apr 2015 - Present • 11 yrs 6 mos

Scalable Full Stack Application Development: Designed and developed production full stack systems using React, Node.js, Typescript, Express, MongoDB Atlas, PostgreSQL supporting more than 400,000 active users with a focus on scalability, reliability, and performance. Built and operated serverless and containerized microservices on AWS enabling resilient, event-driven application architectures. Designed and implemented secure user registration, authentication, and notification services using Google Firebase, Auth0 delivering seamless identity management and real-time user communications. Engineered integrations with leading POS platforms including Square, SwiftPOS, and Kounta to synchronize menus, orders, and transaction data, while automating payment, refund, and order processing workflows. Developed secure payment gateway by integrating Stripe and Mastercard services, supporting in-app payments, digital cash card redemption, and provisioning payment cards into Apple Pay and Google Pay for a frictionless customer experience.