Sayantan Saha

Software Engineer

Hyderabad, Telangana, India4 yrs 8 mos experience

AI EnabledHighly Stable

Key Highlights

Led migration of legacy systems with zero downtime.
Achieved 40% reduction in authentication latency.
Built high-availability systems serving millions of requests.

Stackforce AI infers this person is a Cloud Computing and E-commerce expert with a strong focus on distributed systems.

Contact

sahasayantan236@gmail.com LinkedIn

Skills

Core Skills

JavaApache SparkAmazon Web Services (aws)MicroservicesPostgresql

Other Skills

JavaScriptCentOSTerraformOracle CloudFull-Stack DevelopmentTypeScriptReactKotlinObject-Oriented Programming (OOP)C++Artificial Intelligence (AI)Machine LearningLarge Language Models (LLM)Generative AI ToolsSoftware Development

About

Book an 1:1 call: https://topmate.io/sayantan_saha_18 Hello! I'm Sayantan, a software engineer and AI, LLM enthusiast, specializing in Java, Kotlin, Javascript, TypeScript, React, AWS and full-stack development. With a B.Tech in Computer Science & Engineering and five years of hands-on experience, I excel in delivering high-quality software products on time. As a proactive problem-solver and strong communicator, I'm dedicated to continuous learning and collaboration. Let's connect and explore how my skills can contribute to your team's success.

Experience

4 yrs 8 mos

Total Experience

4 yrs 4 mos

Average Tenure

4 mos

Current Experience

Oracle

Senior Member of Technical Staff

Jan 2026 – Present · 4 mos · Hyderabad · Hybrid

Building large-scale distributed systems for OCI Security Data Platform

JavaApache Spark

Amazon

3 roles

Software Development Engineer 2

Oct 2023 – Jan 2026 · 2 yrs 3 mos

As part of Identity services org, I've led the migration of a 15-year-old legacy monolithic authentication service into 3 decoupled microservices running on AWS cloud, serving 50M+ daily requests with zero downtime during cutover.
Reduced authentication latency by 40% (from 250ms to 150ms) by re-engineering sign-in and account recovery flows using concurrent caching, improving customer experience across all Amazon subsidiaries

JavaJavaScriptAmazon Web Services (AWS)

Software Development Engineer

Aug 2021 – Sep 2023 · 2 yrs 1 mo

Built permission-aware order history webapp for Amazon Business handling 10M+ requests/day with 99.999% availability — integrated 4 microservices to enable role-based access control for 500K+ B2B customers.
Slashed infrastructure costs by 60% ( $180K annually) as IMR Ninja by implementing auto-scaling policies and rightsizing EC2 instances across 10+ services in the org.
Saved 96 dev-hours monthly by automating CI/CD pipeline deployments using AWS CodePipeline — reduced deployment time from 45 minutes to 8 minutes per release.
Cut incoming ticket counts by 40% (saving 100+ dev-hours/month) by building automated triaging system that resolved common issues and documented solutions in internal wiki to act as oncall playbook.

JavaAmazon Web Services (AWS)

Software Development Engineer Intern

Jan 2021 – Jul 2021 · 6 mos

• Delivered $100K annual cost savings (with 10% YoY growth projection) by optimizing S3 storage lifecycle policies and eliminating redundant DynamoDB read operations in Amazon Business post-purchase services.

JavaMicroservices

Ooredoo oman

Database Administrator

Aug 2019 – Sep 2019 · 1 mo · Muscat Governorate, Oman

Migrated the existing PostgreSQL servers from v9.4 to v11.4 for Ooredoo's self-care mobile application.
Setup streaming replication among the PostgreSQL cluster.
Developed a High Availability solution on both pairs of servers which ensures the Automatic Failover with zero downtime and zero data loss.

CentOSPostgreSQL