Kartik S

* Designed and developed a latency-sensitive shopping assistant for Amazon Search and Detail pages, meeting strict targets of 155ms and 200ms. * Drove $17MM revenue growth by mapping product types to customer needs, enabling customers to browse high-quality ASINs. * Built a plug-and-play CI/CD pipeline framework, cutting dev efforts from 1 month to 1.5 weeks. * Automated EC2 health checks and email alerts, reducing downtime and operational load by 20%/month. * Mentored an intern to deliver a pipeline risk mitigation tool eliminating 50+ tickets/month. * Created generic task orchestrator templates in Apache Airflow, reducing onboarding from 45 to 15 days across 30+ cases (66% SDE time savings). * Maintained and enhanced Scala-based microservices, including transportation logic and unit tests. * Developed a custom DynamoDB-based locking mechanism ensuring exclusivity in orchestration workflows. * Automated workflow integration of Cradle jobs with AWS Glue, saving $5K/month, reducing integration from 1 week to 1 day, and cutting ops overhead by 80%. * Added metrics/alarms for critical EMR service steps and created a CDK package for easier deployment, resolving COE action items. * Selected for Amazon DevCon 2025 (Top 130) and presented an Engineering Excellence solution in Seattle, WA. * Architected an AWS-native Retrieval-Augmented Generation (RAG) AI assistant using Amazon Lex, Bedrock (Titan Embeddings & Titan Text G1), Glue, DynamoDB, S3, and OpenSearch. Trained on internal docs with enterprise security: VPC isolation, private subnets, and KMS encryption.

• Involved in revamping their existing products such as Course purchase website, online IDE and problem practice platform hackerblocks. • Only 15% of students were able to complete the online purchased courses before the access expired , as a Product Engineer created a FAQ list to get feedback from students about the issue and came with the roadmap to add new features such as course pause feature for 2 months so that students can get extra buffer and gamifying the module assessments, the completion rate grew to 45%. • Revamped the curriculum for Data structures and algorithms using Java and mentored college students for the same. • Curated around 400 Data Structures And Algorithms problems and editorials on the practice platform hackerblocks

Worked on technologies such as core Java, springboot, build tools such as Maven and gradle, Hibernate ORM.

My project involved adding additional support for building container images by fabric8-maven-plugin. The options which were needed to be added are: 1.Java Image Builder 2.Buildah

Assisted students and solved their data structures related queries.