Welcome to my portfolio

E Sai Krishna

Senior Software Engineer | AWS Certified Developer Associate

8+ years of experience in .NET, AWS, and building scalable backend systems and APIs. Leverages AI tools (Claude, GitHub Copilot) to accelerate development and solve complex problems efficiently.

Experience

8+ years building scalable systems, APIs, and cloud solutions

Senior Software Engineer

EPAM Systems

Jan 2026 - Present

Acting team lead leveraging AI pair programming (Claude Code) to accelerate migration from legacy systems to high-performance data access services with RESTful APIs.

  • Lead migration initiatives from legacy systems to modern, performant data access services
  • Collaborate with development teams and clients on architectural improvements
  • Leverage LLMs and Model Context Protocol in building AI-assisted applications
  • Use AI agents (GitHub Copilot, Cline) to accelerate development by 80%
  • Mentor 6 engineers in team
.NET CoreAWSClaude CodeGit

Senior Software Engineer

EPAM Systems

Jan 2025 - Dec 2025

Architected and implemented migration of legacy batching system to Hangfire background jobs for improved performance and reliability.

  • Part of OSR team working on SHA initiatives and system modernization
  • Created solution for migrating background batch jobs to Hangfire
  • Designed performant queueing system improving reliability
  • Integrated Windows services using WCF
  • Implemented WebSocket for real-time progress notifications
  • Refactored applications for significant performance gains
Hangfire.NETWindows ServicesWebSocketWCF

Senior Software Engineer

EPAM Systems

Jul 2024 - Dec 2024

Addressed architectural debt and performance bottlenecks in complex corporate tax platform through systematic analysis and optimization.

  • Debugged complex .NET systems for performance issues
  • Designed solutions using ASP.NET, .NET Core, Angular, PostgreSQL
  • Analyzed codebase and proposed performance mitigation strategies
  • Evaluated AWS infrastructure for application performance
  • Collaborated with teams on architectural alignment
ASP.NET.NET FrameworkAngularPostgreSQLAWS

Engineer, Team Lead

ValueMomentum

Sep 2019 - Jun 2024

Scaled insurance product to meet business demand through infrastructure optimization, microservices migration, and CI/CD implementation.

  • Proposed infrastructure changes resolving bulk quote conversion issues, increasing revenue by 60%
  • Pioneered CI/CD with GitHub Actions achieving 50% efficiency improvement
  • Orchestrated microservices transition reducing errors by 40%
  • Implemented event-driven architecture with pub-sub communication
  • Automated batch jobs saving service team 2 days/week
  • Mentored 5 engineers in team
C#.NETAWSGitHub ActionsDynamoDB

Software Engineer

ValueMomentum

2019 - 2022

Developed insurance-based product using APIs, third-party integrations, and complex payment workflows.

  • Designed APIs for Socotra Policy Administration System integration
  • Implemented quote pricing with automated underwriting approval (<5 seconds)
  • Optimized document generation reducing time by 5+ seconds
  • Constructed mapping layer and stored procedures for seamless integration
  • Integrated Stripe Payment Gateway for post-payment workflows
C#.NETGraphQLStripeSocotra API

Director

HashtagHyderabad

2017 - 2019

Event management company designing and executing corporate and personal events.

  • Conducted meetings with clients converting leads to business
  • Coordinated with vendors across diverse backgrounds
  • Orchestrated corporate and personal events
Event ManagementBusiness Development

Product Support Engineer

HCLTech

2017

Provided technical support for Google's DoubleClick for Publisher.

  • Diagnosed issues for major clients (Microsoft, Motorola, Samsung, Apple)
  • Documented software defects in JIRA
  • Provided technical assistance through investigation and diagnostics
JIRASupportTroubleshooting

Skills & Expertise

Technologies and tools I've worked with extensively

Languages

C#.NETJavaScriptPythonHTMLCSS

Cloud Services

AWS LambdaAWS DynamoDBAWS SNS/SQSAWS CloudWatchAWS IAMAWS EC2

Architecture

MicroservicesEvent-Driven ArchitectureRESTful APIsPub-SubSOLID Principles

DevOps

GitGitHub ActionsCI/CDDockerFeature Management

Databases

SQL ServerPostgreSQLDynamoDBNoSQL

Integrations

StripeGraphQLWebhooksWCFMessage Brokers

Achievements & Impact

11
Engineers Mentored
6 at EPAM, 5 at ValueMomentum
8+
Years of Experience
In software engineering and cloud services
60%
Revenue Impact
Increased through infrastructure optimization
40%
Performance Gain
Reduced errors via event-driven architecture

Awards & Recognition

Highflier of the Quarter - Innovation

ValueMomentum

2021

Made a Difference - Annual Award

ValueMomentum

2022

Let's Connect

Open to new opportunities, collaborations, and interesting projects. Feel free to reach out!

Phone: +91-9908866642

Based in India • Open to Remote & On-site opportunities