Prakhar Tiwari

Software Engineer

India4 yrs 10 mos experience

Key Highlights

Reduced API query latency by 65%.
Increased cache hit rate from 50% to 80%.
Designed systems handling over 1 million leads daily.

Stackforce AI infers this person is a Backend-focused Software Engineer with expertise in SaaS and Fintech.

Contact

Skills

Core Skills

Amazon Web Services (aws)Api DevelopmentPerformance OptimizationCaching StrategiesJavaSpring FrameworkBack-end Web DevelopmentMicroservicesBlockchain

Other Skills

KotlinAmazon SQSRedisData StructuresReactive ProgrammingRedis Pub/SubReactNodeExpressweb3.jsTruffleGanacheEthereumAmazon Relational Database Service (RDS)Amazon S3

About

Experience

4 yrs 10 mos

Total Experience

1 yr 7 mos

Average Tenure

1 yr 7 mos

Current Experience

Expedia group

SDE-2

Nov 2024 – Present · 1 yr 7 mos · India · Hybrid

Drove performance optimization of a high-traffic API, reducing query latency by 65% from 1.2s to 300ms by eliminating RID lookups by
implementing clustered and sequential indexing.
Redesigned and optimized the Redis caching strategy used to deliver near real-time redemption percentages for active campaigns, resulting in an increase in cache hit rate from 50% to 80%.
Enhanced the core redemption event flow from Apply Coupon to Commit Coupon by 20%, enabling
consumers to make accurate data-driven decisions. This improvement led to clearer campaign insights and the creation of similar campaigns to boost customer retention.

KotlinAmazon SQSAmazon Web Services (AWS)API Development

Bharatpe

SDE-2

Oct 2024 – Nov 2024 · 1 mo · India · Hybrid

- Implemented RTE v3, introducing 60 and 90-day programs for ineligible lenders, resulting in a 6% higher conversion rate and a 15% revenue increase by converting them to eligible lenders and processing their loans.

JavaSpring Framework

Airtel

Software Engineer

Apr 2022 – Oct 2024 · 2 yrs 6 mos · India · On-site

Designed and developed an event-based system to manage the Lead flow across all lines of business (Broadband, Postpaid, Airtel Black). The system efficiently handles 1 million unqualified leads daily, with the customer-facing createCart API achieving a P99 latency of under 80ms.
Implemented an automated feature allowing campaign sheets to go live in about 2 minutes upon ingestion, Bypassing scheduled times ,Transitioning to a pub-sub event architecture ensures consistency across pods. I've introduced a delay between cron jobs to swap sheet versions from Aerospike to in-memory cache enhancing system responsiveness
− Designed and implemented the 'Multiple Circle Support' for campaigns, Eliminating the need for separate replicas per circle enabling campaigns to serve multiple circles seamlessly.
− Designed a feature expanding offers beyond Telco customers to include services like electricity and water bills, Potentially reaching over 10% more users for payments.
Created a microservice delivering predefined templates for A/B experimentation across Telco Sim Acquisition journeys (Prepaid, Postpaid, Broadband). It efficiently manages over 3 million leads daily with minimal modifications.

Data StructuresReactive ProgrammingBack-End Web DevelopmentMicroservices