Karthikeyan K Email & Phone Number

Chennai, Tamil Nadu, India

● Leading a small team of developers, working towards the modernization of backend services. ● Working on bringing down the cloud costs, with primary focus on the database and related workloads.

Chennai, Tamil Nadu, India

● Stabilized the Production SQL Server CPU utilization by identifying and applying highimpact missing indexes across the database. This greatly reduced the correspondingfailures, improved query performance and helped scaling down the instance, therebysaving cost.● Improved the functional stability and performance of a core module byredesigning the underlying data structure and the business logic. The rollout had beenhighly successful, receiving positive feedback across labs.● Played a pivotal role in identifying a critical performance issue in Production that arose from a recent release. The finding helped in deploying a timely fix, resolving the issue.● Addressed performance concerns in application hot paths by applying variousoptimization techniques. Shared the learnings with a wider audience for the benefit oforganization.● Contributed to observability initiative by building expertise in KQL and setting up queries, dashboards, workbooks and alerts.

Hyderabad, Telangana, India

● Led the design and development of back-end components for a major sport integration project. Sorted out technical challenges in time ensuring a smooth delivery.● Built services from scratch with .NET Core, Protocol Buffers, Kafka, SQL Server, Redis, including comprehensive Unit and Integration tests.● Refactored and improved the throughput of a mission critical .NET service responsible for timely price adjustments reacting to external feeds.● Improved the maintainability of a legacy project by employing appropriate design patterns and principles, ensuring a clean and loosely coupled code base.● Mentored less experienced team members on domain and technologies. Encouraged andwelcomed code reviews, knowledge sharing and process improvements so as to excel as a team.

Hyderabad Area, India

● Led the migration of a monolithic service to a microservice architecture; built common libraries and core services vital for the transformation. Also, managed the migration of on-premise components to Microsoft Azure.● Developed a row level authorization library in Entity Framework Core. The library providesflexible configuration points and abstracts the LINQ-SQL complexity from the consumer.● Migrated a client’s complex IT file transfer process into .NET for improved performance and manageability.● Analyzed and improved the performance of few critical background engines by almost 30%.

Hyderabad Area, India

● Led the technical direction of a newer module, assisting the team with estimates and blockers if any.● Built POC for a Geo-Search feature using Google Maps, integrating with internal customer detail.

Hyderabad Area, India

● Proposed an alternative solution for handling pop up dialogs application wide. This helped cut down the project duration estimate by almost 50%.● Built a POC for an integrated chat system using SignalR; supports operations such as group chat, file transfer, sharing internal application links, etc.● Developed tools for in-house support teams to minimize manual intervention.