Kartik Dalai
@kartikdalai
Senior Backend Engineer building scalable Java microservices and event-driven platforms on AWS.
IndiaWhat I'm looking for
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
Work history, roles, and key accomplishments
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
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%.
Software Engineer
Mindfire Solutions
Dec 2019 - Dec 2021 (2 years)
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.
Internship Trainee
Yusata Infotech Pvt Ltd
Dec 2018 - Sep 2019 (9 months)
Internship trainee role at Yusata Infotech Pvt Ltd.
Education
Degrees, certifications, and relevant coursework
Biju Patnaik University of Technology
Master of Computer Applications, Computer Applications
Grade: 9.0/10
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
Completed a Master of Computer Applications (MCA) at Biju Patnaik University of Technology (BPUT), achieving a grade of 9.0/10.
Availability
Location
IndiaAuthorized to work in
Job categories
Skills
Interested in hiring Kartik?
You can contact Kartik and 90k+ other talented remote workers on Himalayas.
Message KartikGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
