# Jaison John > Principal Engineer at CVS Location: Pleasanton, California, United States Profile: https://flows.cv/jaisonjohn DevOps, Microservices, Cloud, Serverless, Container, Docker, Kubernetes, Kafka, Java, Python, Kotlin, Golang, Rust, Gen AI - Buzzword Compliant :) • 15+ years of experience in design and development of enterprise applications. • Microservices: Expertise in Restful design principles. Expertise in microservices architecture and advocate for it. Experience in establishing best practices for developing and implementing high performant enterprise microservices. Experience in breaking down monolith into multiple cloud-native Microservices. Experience in a Loyalty management SOA (Service Oriented Architecture) platform that handled around 1.5 million transactions daily. • Cloud: 5+ years of experience in cloud: AWS (Amazon Web Services) - Openstack - GCP (Google Cloud Platform). Multiple aspects of cloud – FaaS/Iaas/PaaS. Serverless: Experienced in serverless stack including AWS S3 static hosting, AWS lambda Functions, CloudFront edge cache • DevOps: CI-CD expertise with Github - Drone.io/CircleCI/Github Actions - Docker - Artifactory – Kubernetes Infrastructure as Code: Experience with Terraform/CloudFormation, Puppet/Ansible • Security: Experienced in incorporating security practices into development stage and advocates for it. Introduced OWASP filtering for the REST services in a previous project. Experience in securing microservices using OAuth2 and JWT https://stackoverflow.com/a/47341333/6785908 • Data: Expertise in event sourcing using kafka. Experienced in both SQL and NonSQL databases. Experience in Bigdata technologies such as Cassandra and Apache Kafka • Domain expertise: Well versed in Master Data Management (MDM) / Product Information management (PIM) , Inventory Systems and Loyalty Management which are backbones of Retail Industry • Opensource Contribution: I have contributed to Jackson (a leading java JSON library which spring boot uses under the hood) and Kubernetes documentation, Active in Stackoverflow https://stackoverflow.com/users/6785908/ • Expertise in design patterns and Object-Oriented concepts (OOC) • Google certified Cloud Architect Professional. Oracle Certified in Java. Amazon Certified in AWS • Methodology: Experience in Scrum Agile as well as waterfall software development practices ## Work Experience ### Principal Engineer @ CVS Health Jan 2022 – Present Order Management System Modernization, Inventory Management System Java, Kotlin, Kafka, Spring Boot, Postgres, Cassandra, GCP BigQuery, Looker Studio (formerly DataStudio), circleCI, argoCD, Splunk, Prometheus, Grafana, NextJS, K8s (Kubernetes), Docker, Disaster Recovery, Distributed Systems, GCP Load Balancers, Cloud cost optimization GenAI - Chatbot with RAG, VectorDB K8s at the Edge - K3S ### Engineering Manager @ Shipt Jan 2020 – Jan 2022 | San Francisco Bay Area Order Management System Go (Golang), Kafka, Redis, Postgres ### Lead Engineer @ Gap Jan 2019 – Jan 2020 | San Francisco Bay Area • Improving inventory services to reduce the latency to the order of 10s of milliseconds • Implemented CI CD practices using Jenkins pipeline in PCF (Cloud Foundry) environment • Introduced Semantic Versioning for release and artifacts • Leading the integration team ### Senior Engineer @ Target Jan 2015 – Jan 2019 | Greater Minneapolis-St. Paul Area • Lead an in-house built Master Data Management System's backend services and established guidelines for API development. • Designed Automated feature environment Architecture. • Expertise in Restful design principles. Expertise in Spring Boot microservice framework. • Experience in DevOps Practices with Openstack - Terraform / Docker - Kubernetes stack. • Experience in securing RESTful services using oauth2, JWT and Spring security. • Complete CI-CD (Continuous Integration Continuous Deployment) Pipeline experience with Git - Drone.io/Jenkins - Artifactory - Kubernetes. • Full stack Development experience; From Angular to k8s (Kubernetes). • Experience in different Enterprise integration patterns (EIPs); Expertise in Apache Camel • Technologies/ Languages/ Tools Kotlin, Spring Boot, Apache Kafka, Spring Cloud, Go (Golang), Angular, Apache Camel. Drone.io for CI-CD. Jenkins CI Pipeline, Jenkins DSL, Spock, JUnit. ### Technology Lead @ Infosys Jan 2014 – Jan 2015 | Greater Chicago Area • Technology lead for Stibo STEP MDM (Master Data Management) Tool implementation. • Migrated CPG data from MS SQL Server database to Stibo STEP MDM Tool. • Developed and deployed various inbound and outbound integrations for the MDM system using Java and Spring. • Experience in Azure Worker role PaaS. • Tools/Technologies used: Java, Spring, Stibo Step PIM (Product Information Management) / MDM (Master data Management) Tool, XML, Microsoft Azure cloud, Azure BlobStorage, Azure Tablestorage, Azure Workerrole deployment, MS SQL Server 2008. ### Senior Software Engineer @ Infosys Jan 2011 – Jan 2014 | Greater Chicago Area • Key design & development resource for SOAP-based web services that processes point of sale (POS) transactions on the order of 1.5 million transactions per day. • Developer in a critical module of Loyalty management platform. Developed Soap web services which handles point transactions. • Experience in both SQL and noSQL; expertise in SQL queries and performance tuning of SQL queries using indexes and partitions. • Responsibility includes leading and mentoring an offshore team, code review, performance tuning of Java code, query performance tuning etc. Software/Tools used: Java, Spring, Apache CXF, JAXB, SOAP Webservices, Maven, SQL, MySQL, SVN, MemCached, EHCache, Basic UNIX • Experience in XML technologies like XSD, XSLT, XPATH, JAXB, DOM, SAX, StAX etc. ### Software Engineer @ Infosys Jan 2007 – Jan 2011 | Bengaluru Area, India • Developed SOAP webservices using CXF • Worked on different Java/JEE projects like webcrawling / scraping data using Webharvest, a java based scraping tool. Software/Tools used:Java, Spring DI, Spring MVC, Tomcat, JBoss, Apache CXF, JSP, HTML, CSS, Javascript, Hibernate, SQL, MySQL, Maven, Xquery, Xpath, Eclipse, Subversion Jira etc ## Education ### Master of Science - MS in Computer Science, Artificial Intelligence and Machine Learning Western Governors University ### Bachelor of Technology (B.Tech.) in Electrical, Electronics and Communications Engineering Cochin University of Science and Technology ## Contact & Social - LinkedIn: https://linkedin.com/in/jaison-john-0205049 - Portfolio: https://stackoverflow.com/users/6785908/so-random-dude - Portfolio: https://bugdays.com --- Source: https://flows.cv/jaisonjohn JSON Resume: https://flows.cv/jaisonjohn/resume.json Last updated: 2026-04-12