# Kartik Dalai Kartik Dalai is a remote worker on Himalayas, Senior Software Engineer at Warner Bros. Discovery, based in India. Source: https://himalayas.app/@kartikdalai ```text Senior Backend Engineer building scalable Java microservices and event-driven platforms on AWS. ``` | Detail | Value | | --- | --- | | Availability | Open to opportunities | | Location | India | | Authorized to work in | India | | Job categories | Senior Backend Engineer, Software Engineer, Backend Engineer, Microservices Engineer, Distributed Systems Engineer, Event Driven Systems Engineer, Senior Backend Engineering, Senior Backend Development | | Skills | Java, Python, JavaScript, Data Structures, TypeScript, SQL, Spring Boot, Spring Cloud, REST APIs, Microservices, JPA, Hibernate, Apache Flink, AWS Kinesis, AWS Lambda, OpenSearch, Cloudwatch, MySQL, PostgreSQL, Redis, Cassandra, Elasticsearch, JanusGraph, Docker, Kubernetes, Terraform, GitHub Actions, CI CD, Junit, Mockito, Integration Testing, Grafana, Kibana, Prometheus, System Design, Distributed Systems, GitHub, Kafka, S3, EC2, Performance Optimization | ## What I'm looking for ```text I’m looking to lead backend platforms—building Java/Spring microservices and event-driven pipelines on AWS—focused on low-latency performance, reliability, and measurable cost reductions, with opportunities to mentor engineers and own end-to-end delivery. ``` ## About ```text I’m a Senior Backend Engineer with 7.5+ years building scalable microservices, distributed systems, and event-driven backend platforms in Java, Spring Boot, Apache Kafka, and AWS. I currently own the HBO Max Ad Platform backend processing 2.5 billion ad events per day. I build and operate low-latency services, including REST APIs, microservices, and event-driven pipelines with sub-200ms latency. I also created a high-concurrency server-side ad beaconing microservice handling 7-8 million requests per day, eliminating client-side tracking and reducing operational costs by 50%. I architect fault-tolerant, multi-region systems using Apache Flink, Kubernetes (EKS) jobs, and Apache Kinesis—enabling zero-downtime deployments and 99.9% uptime in production. I further drive efficiency through JVM tuning, connection pool optimization, job right-sizing, and S3 storage tiering, reducing AWS infrastructure costs by 25%. Previously, I designed backend microservices for real-time fraud detection at Deloitte using Spring Boot and Apache Kafka, processing 2-3K transactions per second with alerting latency under 500ms. I re-architected a legacy monolith into event-driven microservices, improved throughput by 30%, reduced failure rate by 45%, and raised test coverage from 55% to 90% with JUnit and Mockito—cutting production incidents by 35%. ``` ## Experience ### Senior Software Engineer (current) [Warner Bros. Discovery](https://himalayas.app/companies/warner-bros-pictures). Jun 2024 - Present ```text Owned end-to-end backend development for the HBO Max Ad Platform, building REST APIs, microservices, and an event-driven pipeline processing 2.5B ad events per day with sub-200ms latency. Built and operated high-concurrency Java/Spring Boot beaconing and multi-region fault-tolerant systems using Apache Flink, Kubernetes (EKS), and AWS services, improving uptime to 99.9% and reducing AWS infrastruc ``` Skills: S3, Java, Spring-Boot, REST-APIs, Microservices, Apache-Flink, Kubernetes, Amazon-EKS, Terraform, GitHub-Actions, CI-CD, AWS-Kinesis ### Software Engineer 2 [Deloitte USI](https://himalayas.app/companies/deloitte-ireland). Dec 2021 - Jun 2024 ```text Designed backend microservices for a real-time fraud detection system using Spring Boot and Apache Kafka, processing 2–3K transactions per second with alerting latency under 500ms. Re-architected a legacy monolith into event-driven microservices with Spring Cloud Data Flow and improved test coverage from 55% to 90% with JUnit/Mockito, reducing production incidents by 35%. ``` Skills: Kafka, Spring-Boot, Microservices, REST-APIs, Junit, Mockito, JanusGraph, Elasticsearch, Java ### Software Engineer Mindfire Solutions. Dec 2019 - Dec 2021 ```text Developed 10+ REST APIs and 20+ Angular components for a custom augmented reality platform, reducing rendering latency by 40%. Led full lifecycle delivery with US-based clients and enabled real-time AR scene rendering within 300ms of target image scan on mobile devices. ``` Skills: REST-APIs, Angular, Augmented-Reality-(AR) ### Internship Trainee Yusata Infotech Pvt Ltd. Dec 2018 - Sep 2019 ```text Internship trainee role at Yusata Infotech Pvt Ltd. ``` ## Education ### Biju Patnaik University of Technology Master of Computer Applications, Computer Applications. Grade: 9.0/10 ```text Completed a Master of Computer Applications (MCA) program at Biju Patnaik University of Technology, graduating with a grade of 9.0/10. ``` ### Biju Patnaik University of Technology Master of Computer Applications (MCA), Computer Applications. Grade: 9.0/10 ```text Completed a Master of Computer Applications (MCA) at Biju Patnaik University of Technology (BPUT), achieving a grade of 9.0/10. ``` ## Tech stack - Apache Flink - GitHub - Kubernetes - Spring Cloud - GitHub Actions - MySQL - PostgreSQL - Cassandra - Gmail - Spring Boot - Redis - Terraform - JavaScript - Java - Kafka - Grafana - Kibana - Prometheus - Elasticsearch - OpenSearch - JUnit - Mockito - SQL - JanusGraph To contact Kartik, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire). ## People also viewed - [D s s Raghavendra](https://himalayas.app/@dssraghavendra): Senior Backend Engineer, Birdeye Pvt Ltd - [Neeraj Kumar](https://himalayas.app/@neerajkumar4): Senior Software Engineer, Glide Cloud Solutions - [Harshit Raj](https://himalayas.app/@rharshit82): Software Development Engineer I, Amazon - [Rajesh Singh Kadyan](https://himalayas.app/@rajeshsinghkadyan): Senior Backend Engineer, Brillio Technologies - [Ishwarya K](https://himalayas.app/@ishwaryak): Senior Associate Technology L1, Publicis Sapient - [Pradip User](https://himalayas.app/@pradipuser): Senior Backend Engineer, Walmart Global Tech India - [Akshita Mittal](https://himalayas.app/@akshitamittal): Senior Software Engineer, Visa - [Abhishek Verma](https://himalayas.app/@abhishekvermaa10): Senior Software Engineer, Exerp - [Ashish Chauhan](https://himalayas.app/@ashishchauhan4): senior developer, Wipro Limited - [VISHNUDAS V U](https://himalayas.app/@vishnudasvu): Software Development Engineer (Backend), DP World