Vaibhav Khandelwal

Software Engineer

Gurugram, Haryana, India12 yrs 8 mos experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Over 12 years of experience in software engineering.
  • Expertise in building scalable distributed systems.
  • Proven track record in driving organizational growth.
Stackforce AI infers this person is a Backend-heavy Fullstack Engineer with extensive experience in E-commerce and Fintech.

Contact

Skills

Core Skills

MicroservicesDomain-driven DesignCloud SolutionsBackend DevelopmentSoftware Development

Other Skills

API designAPI developmentAPI interface designAWSAWS LambdaAds platform developmentAds systems designAmazon DynamoDBAmazon EC2Amazon S3Collaborative Problem SolvingComplianceCost optimizationData MigrationData Pipelines

About

Results-driven software engineer with over 12 years of experience designing and building scalable, high-performance distributed systems. Expertise in Java, Golang, AWS cloud solutions, Kafka, Redis, and microservice architectures, with a strong focus on domain-driven design and achieving million-scale scalability. Throughout my career, I have contributed to and led the development of platforms in ads, membership, communication, and growth marketing, delivering impactful solutions with high customer and business value. Currently, I focus on organizational growth through domain building, operational simplification, and cost efficiencies, leveraging deep technical knowledge and leadership skills. My background from Delhi Technological University has laid a firm foundation for solving complex problems with innovative software and cloud-native solutions.

Experience

12 yrs 8 mos
Total Experience
2 yrs 6 mos
Average Tenure
6 yrs 4 mos
Current Experience

Swiggy

2 roles

Software Development Engineer IV

Promoted

Apr 2022Present · 4 yrs 2 mos

  • 1) Tech for Giftables Business:
  • Led tech design and execution for Swiggy’s Giftables BL across cart, order, post-order and comms, enabling 5,000+ SKUs, complex refund/replacement flows, and GTM-ready, reusable foundations for future gifting journeys. Partnered closely with product and multiple engineering pods to define scope, simplify flows across Food/IM/Gifting, and drive decisions on order hierarchy, collections, and refunds. Mentored next-level ICs, set up structured execution (contracts, CFDs, dashboards), and ensured quality, opex readiness and SOPs for a high-complexity, multi-quarter launch.
  • 2) Org Tech Simplification:
  • Drove org-wide tech simplification across Membership, Config Platform and Communication Platform, deprecating high-cost DUs/APIs, cutting infra spend by $35K/month, and improving latency, reliability and self-serve opex for teams. Led Loyalty (Shaktimaan) modernization and call-depth reduction, Redis/storage and CPU optimisations, and membership-context based traffic reduction (1.5 million TPM/RPM) to unlock both performance and cost wins. Re-architected Config Platform governance and SDK, simplified push-notification architecture, and institutionalised data-backed simplification roadmaps, enabling safer rollouts and easier platform adoption across the org.
  • 3) Tech for Ads Domain:
  • Built Swiggy’s in-house Ads platform end-to-end, scaling multi-BL Sponsored/Keyword/Banner Ads to multi-million RPO while saving ₹40L/month and leading migration from legacy systems. Drove DSP/SSP, post-serving, and advertiser metrics design, shaped contracts and policies with BLs, and established clear boundaries between Ads and business domains. Enabled rapid onboarding for new BLs, delivered high-RPO use-cases like Category Sponsored Ads and keyword bidding, and ensured production readiness through performance, opex, and GTM processes.
JavaGolangAWSKafkaRedisMicroservices+1

Software Development Engineer III

Jan 2020Mar 2022 · 2 yrs 2 mos

  • 1) Designed and owned core Ads systems:
  • (Ads Bidder, Ads Event Consumers, Ads Serving Layer), enabling CLM-based audience segmentation across 12+ segments with zero incremental tech effort for new segments. Built robust observability, debuggability and schema foundations so product, DS and analytics teams could reliably trace pacing, targeting and DSP responses end-to-end.[1]
  • 2) Drove execution of complex cross-team projects:
  • (Ads Re-Arch, Similar Restaurants, CPM/BYO) involving 4–8 developers and multiple systems, defining rollout, parity and production-readiness plans. Improved Ads Bidder latency by ~38% via targeted perf testing and tuning (e.g., GOGC and memory profiling), and unblocked launches by resolving bottlenecks across Ads, Search, DS, Merch and Foundations while keeping GTM timelines intact.[1]
  • 3) Reduced operational load and infra cos:
  • By cutting Ads pricing upload effort from ~4 days of manual ops to ~12–16 hours through deep-dives across dashboard, consumers and RDS, and by fixing RDS CPU spikes via batching, rate limiting and sequence optimizations. Eliminated Kafka lag in high-traffic scenarios through parallel consumption (goroutine pool per node), and pushed higher UT/SLT coverage plus whitewalker adoption to make new features more resilient and safer to roll out.
Node.jsAds systems designPerformance testingOperational efficiencyMicroservices

Amazon

Software Development Engineer II

Apr 2017Jan 2020 · 2 yrs 9 mos · Bengaluru, Karnataka, India

  • 1) Developed and maintained core components of Amazon Pay Balance’s doorstep cash load feature, which includes load order fulfillment, customer eligibility API (scale upto 6000TPS) for offline capability, customer notifications and reconciliation. Work enabled business to grow to more than 30k orders/day.
  • 2) Lead Project BOM for making Amazon Pay Balance architecture RBI guidelines compliant which was to process, display and store payments data in India. Lead team to migrate post payments processing platform from Amazon proprietary VPC in DUB to AWS BOM region. Work enabled business continuity wrt RBI mandate.
  • 3) Lead system re-architecture of Amazon Pay Balance for making it fully RBI complaint, multi-tenant, reducing operational load and infrastructure cost. Work helped in reducing operational load by 30%, infra-cost by 60% and enabling other marketplaces to use Pre-paid instrument.
AWSAPI designSystem architectureCloud Solutions

Delhivery

2 roles

Senior Developer

Promoted

Apr 2016Apr 2017 · 1 yr · Gurugram, Haryana, India · On-site

  • LMaP web app and FE app (back-end):
  • LMaP is a web-based platform to track last-mile delivery at the shipment level, built using Node.js with Express.js, Firebase, AWS Lambda, AWS Kinesis, BigQuery, and AWS S3 for real-time tracking and data processing. The system integrates SendGrid for email communication, New Relic for server monitoring, Sentry for exception logging, PM2 for process management and clustering, VPC for secure infrastructure, and Git for version control in a production-grade environment.
Node.jsFirebaseAWSBackend Development

Technology Associate

Jun 2015Mar 2016 · 9 mos · Gurugram, Haryana, India · On-site

  • Last Mile as a Product:
  • Working on server side in nodejs for LMaP which is IT software for centers from where packages are delivered to customers. Technologies being used are nodejs, firebase, expressjs, AWS Lambda and AWS Kinesis
Node.jsFirebaseAWSBackend Development

Paytm

Software Engineer

Dec 2014May 2015 · 5 mos · Noida, Uttar Pradesh, India · On-site

  • Referral Program
  • Worked on Referral program. Created API to send sms and email to share referral link and created email job using job queue (kue node module) to send email on Referrer transaction. Technologies used are Nodejs, Branchmetrics deepliking API.
Node.jsAPI developmentBackend Development

Bank of america

Senior Technical Associate

Jul 2013Dec 2014 · 1 yr 5 mos · Gurugram, Haryana, India · On-site

  • 1) PRODUCTS TECHNOLOGY- CARDS:
  • Under Integrated Cards Decision Platform converted QE Dashboard application to maven based and developed UI for Developer Cockpit application used jQuery, Date Picker and Data Table. Developer cockpit app was for viewing code review reports.
  • 2) E - COMMERCE:
  • Under Mobile App Development team worked on Data Portal Application which was used by manager to view information of, to add/ delete direct reportees. Created SOAP based web services for CRUD operations using Hibernate. Used HSQLDB and Servlet/JSP and followed MVC design pattern. Upgraded the application using RESTful Web Services.
JavaWeb servicesSOAPSoftware Development

Education

Delhi College of Engineering

B.tech — INFORMATION TECHNOLOGY

Jan 2009Jan 2013

Kendriya Vidyalaya

Jan 2002Jan 2009

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