Charanjot S.
Lead Java Developer @Publicis Sapient
Signup · Get unlimited contacts
WORK HISTORY
Lead Java Developer @Publicis Sapient
Toronto, ON, CA
End Client : United Health GroupInsurTech platform was designed to modernize traditional insurance operations by leveraging cloud-native architectures, serverless computing, and data-driven APIs to deliver secure, scalable, and cost-efficient solutions. The system was built to handle large-scale policy management, claims processing, and customer servicing across multi-cloud environments, while maintaining strict compliance and security standards.Designed microservices using Java 17, Spring Boot, Hibernate, JPA, Rest APIs and deployed them on Amazon EKS, and managed APIs using API Gateway and CDN(Cloudfront) ensuring fault tolerance, scalability, and seamless integration across insurance product lines.Implemented Infrastructure as Code (IaC) using Terraform and AWS CDK, enabling consistent, version-controlled provisioning of multi-cloud infrastructure.Migrated workloads from server-based to serverless architectures (AWS Lambda, API Gateway, DynamoDB), reducing microservice operational costs by 95% while improving elasticity and availability.Optimized cloud expenditure by ~40% through intelligent workload scaling, right-sizing compute resources, and leveraging managed services.Modernized the data layer by migrating MySQL to NoSQL (MongoDB & DocumentDB), enabling horizontal scalability and supporting high-volume API traffic.Implemented fine-grained RBAC (Role-Based Access Control) using an adapter design pattern, intercepting tokens before requests reached the controller layer, thereby strengthening authentication and authorization workflows.Key Achievements:Reduced microservice infrastructure costs by 95% through serverless migration.Improved platform scalability and performance, achieving near real-time API responses through OpenSearch indexing and NoSQL migrations.Strengthened platform security with RBAC and token interception mechanisms, ensuring compliance in a highly regulated domain.
EDUCATION
Punjab Technical University
Bachelor’s Degree, Information Technology
ABOUT CHARANJOT S.
i) Tech Lead with 10 years of experience in architecting, designing, and developing secure, scalable, and cloud-native applications across finance, healthcare, and e-commerce verticals.(ii) Skilled in building and modernizing distributed microservices-based systems using Java 17+, Spring Boot, Hibernate, JPA, multithreading, non-blocking workflows, ensuring high availability, fault tolerance, and Strong expertise in DevOps and MLOps practices—designing CI/CD pipelines (GitLab CI, Jenkins, Bitbucket, Github Actions), GitOps-driven automation, and Kubernetes orchestration across AWS, Azure, GCP.(iv) Deep knowledge of cloud-native infrastructure: AWS (EC2, EKS, ECS, Lambda, RDS, DynamoDB, Cognito, S3, SQS, SNS, Step Functions, Event Bridge, Cloudfront, Route 53 and more), Azure, GCP services, Cloudflare Workers; proficient in Infrastructure as Code using Terraform, CloudFormation, Ansible and CDK.(v) Experienced in security and compliance (DevSecOps, Kubeclarity, Pod Security Standards) ensuring cloud workloads meet regulatory and business security requirements.(vi) Proficient in data and observability platforms: Prometheus, Grafana, Kibana, Fluentd, FluentBit, BigQuery, Looker—enabling proactive monitoring, troubleshooting, and insights-driven decision making.(vii) Experienced in SCM & collaboration tools: Git, Bitbucket, Perforce, SonarQube, Azure Defender; adept in Agile methodologies and cross-functional team Strong foundation in API-driven design and event-driven systems using Kafka, SQS, EventBridge, and API Gateway.(ix) Proven ability to combine hands-on engineering with architectural leadership, bridging technical depth with product vision to deliver mission-critical solutions.(x) Mentored engineers and conducted design and code walkthroughs, accelerating team onboarding and raising overall engineering maturity.Certifications :AWS Certified Solutions Architect - Associate
This profile is compiled from publicly available professional sources. Unifers is not affiliated with or endorsed by LinkedIn. Request removal of this profile.