Hi, I'm Sachin Dhiman. I'm a Principal Platform Engineer and Architect with 14+ years of experience designing and modernizing large-scale, high-availability infrastructures across AWS, Kubernetes, and on-prem environments. I specialize in hybrid-cloud design, container orchestration, and infrastructure automation using Terraform, Ansible, Helm, and ArgoCD to reduce deployment times and improve reliability. I've helped organizations achieve 99.99% uptime and cost savings up to 30% through efficient architectures and resource optimization. I focus on security and identity management (Keycloak, OAuth2, SAML), observability (Prometheus, Fluent Bit, OpenSearch, Grafana), and scalable data platforms (Hadoop, Trino, Kafka, PostgreSQL). I'm passionate about mentoring teams, driving continuous improvement, and delivering robust, scalable platforms that empower innovation.

Sachin Dhiman

Hi, I'm Sachin Dhiman. I'm a Principal Platform Engineer and Architect with 14+ years of experience designing and modernizing large-scale, high-availability infrastructures across AWS, Kubernetes, and on-prem environments. I specialize in hybrid-cloud design, container orchestration, and infrastructure automation using Terraform, Ansible, Helm, and ArgoCD to reduce deployment times and improve reliability. I've helped organizations achieve 99.99% uptime and cost savings up to 30% through efficient architectures and resource optimization. I focus on security and identity management (Keycloak, OAuth2, SAML), observability (Prometheus, Fluent Bit, OpenSearch, Grafana), and scalable data platforms (Hadoop, Trino, Kafka, PostgreSQL). I'm passionate about mentoring teams, driving continuous improvement, and delivering robust, scalable platforms that empower innovation.

Available to hire

Hi, I’m Sachin Dhiman. I’m a Principal Platform Engineer and Architect with 14+ years of experience designing and modernizing large-scale, high-availability infrastructures across AWS, Kubernetes, and on-prem environments. I specialize in hybrid-cloud design, container orchestration, and infrastructure automation using Terraform, Ansible, Helm, and ArgoCD to reduce deployment times and improve reliability.

I’ve helped organizations achieve 99.99% uptime and cost savings up to 30% through efficient architectures and resource optimization. I focus on security and identity management (Keycloak, OAuth2, SAML), observability (Prometheus, Fluent Bit, OpenSearch, Grafana), and scalable data platforms (Hadoop, Trino, Kafka, PostgreSQL). I’m passionate about mentoring teams, driving continuous improvement, and delivering robust, scalable platforms that empower innovation.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert

Work Experience

Principal Platform Engineer
May 1, 2024 - November 7, 2025
Designed and deployed a high-availability Hadoop cluster (Ambari) across hybrid infrastructure, achieving 99.99% uptime and zero data loss during failover. Built a multi-node Kubernetes cluster (RKE2/containerd) with namespace isolation, automated healing, and scalable workloads. Configured APISIX as an ingress gateway and service mesh, enabling secure API routing, TLS termination, and rate limiting, with Keycloak for authentication. Automated provisioning with Terraform and Ansible, reducing environment setup time from days to under 3 hours. Implemented end-to-end CI/CD pipelines with Jenkins and GitLab CI for containerized microservices, accelerating deployments by 60%. Enhanced observability with Prometheus, Fluent Bit, and OpenSearch, and deployed Keycloak-based SSO for internal/external services. Led incident response and post-mortem reviews.
Senior Software Engineer at ILex
April 20, 2024 - April 20, 2024
Designed and built AWS-native infrastructure powering 100% production uptime and 20+ microservices. Containerized monolithic services into Kubernetes-based microservices, cutting infrastructure costs by ~30%. Optimized CI/CD pipelines (Bitbucket/Jenkins) to enable daily production releases with minimal manual intervention. Integrated AWS API Gateway with Kafka for event-driven services; tuned Redis caching and reduced API latency; implemented unified monitoring with CloudWatch, Prometheus, and OpenSearch.
Senior Software Engineer at Singtel
September 30, 2022 - September 30, 2022
Architected and deployed AWS cloud infrastructure using Terraform/Ansible; managed Kubernetes clusters with automated deployments via Helm and ArgoCD; standardized CI/CD pipelines with Jenkins and GitHub Actions; implemented AWS Lambda-based serverless automation; improved security with granular IAM roles, VPC isolation, and encryption at rest/in transit.
Technical Lead at UOB via HCL
October 31, 2021 - October 31, 2021
Developed Java Spring Boot microservices integrated with PostgreSQL and Kafka, enabling real-time event-driven banking transactions with near-zero message loss. Designed RESTful APIs that improved inter-system connectivity and reduced transaction latency by 35%. Modernized on-prem DevOps to fully automated pipeline, increasing release reliability and maintaining ~99.98% service uptime across critical banking systems. Automated provisioning workflows using Terraform and Ansible, cutting deployment time from 6 hours to under 1 hour and ensuring policy compliance. Engineered CI/CD pipelines using Jenkins and GitLab CI, eliminating manual handoffs and reducing deployment errors by 90%. Implemented observability stack with Prometheus and OpenSearch, improving troubleshooting and reducing incident resolution time.
Senior Software Engineer at Deskera
December 31, 2020 - December 31, 2020
Designed and developed RESTful APIs using Java & Spring Boot powering real-time data flow for 50,000+ users. Built and containerized Inventory & Notification microservices; integrated Kafka-based event streaming; optimized PostgreSQL performance through query tuning and indexing. Implemented OAuth2/JWT security; collaborated with DevOps to deploy on Kubernetes with rolling updates, achieving 99.99% uptime. Strengthened code quality through unit and integration testing.
Senior Software Engineer at UOB via Optimum Solution
September 30, 2019 - September 30, 2019
Implemented AWS CloudWatch monitoring for logs; developed RESTful APIs with Spring Boot; containerized services on Kubernetes; automated Maven-based build and deployment; improved security with encryption at rest/in transit.
Senior Developer at Landmark Online Pvt Ltd
August 31, 2018 - August 31, 2018
Collaborated with BAs and multiple teams to develop Promotion Engine (Condition and Action module), REST APIs with Spring, and an email service for reliable communications within the application framework.
Module Lead at ANZ via Persistent System
April 30, 2017 - April 30, 2017
Involved in the Retail Channel Enablement and Ops Blueprint Phase 1; developed web services using Spring RESTful architecture; implemented service/DAO layers with JDBC; managed Maven builds and ensured deployment consistency.
Software Engineer at RazorSight
December 31, 2014 - December 31, 2014
Worked on Inventory Analytics; developed a manual correlation module and a web service to fetch/compare data for analytics; collaborated with clients to align requirements and expectations.
Software Developer at Sasken Communication Ltd
November 30, 2013 - November 30, 2013
Contributed to Patient Assess, Shockwaves, and Reward Plus; designed RESTful APIs and database schemas; collaborated with clients and analysts to align objectives.

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Software & Internet