Ankita Makkar profile photo 1 on Tal

Ankita Makkar

Tech Lead | Walmart | 11 years in Distributed Systems | AI & Scalable Architecture

Bengaluru

14+ years of work experience

Walmart Global Tech India
May 20215 yrs 5 mosPresent

RAP — Returns Application Platform (Core Returns & Refunds Backend) — 6-Year SME • Subject-matter expert for 6 years on RAP, owning fault-tolerance design, fraud-prevention strategy, and platform evolution for the core returns and refunds backend end-to-end. • Implemented fraud-prevention checks in the Create Return API, preventing ~$150K in weekly losses (~$300K annually) through proactive, real-time validation — the closest analog on this resume to risk/fraud systems work. • Designed dual-write (Redis/PostgreSQL) consistency and a transactional-outbox pattern, closing a race-condition class of bugs and improving platform resiliency for high-value transaction flows. • Re-architected the return-creation flow, cutting latency from 6s to 200ms (95% reduction) and removing a major drop-off point in the customer experience. • Designed an instant-refund feature that cut customer refund processing time from 4–5 business days to under 10 minutes — directly analogous to payment-processing latency work. LOBO — Shipping & Carrier Integration Platform • Technical lead for an 8-engineer platform team; owned architecture and delivery for a high-volume system sustaining 3M+ requests/minute at peak (flash sales, holiday surges). • Built Kafka-based event pipelines, circuit-breaker/retry resilience, and Kubernetes horizontal autoscaling to keep the platform stable under extreme load. • Drove a 90% latency reduction and 87% faster carrier onboarding through an in-house, AI-powered schema-mapping and automation platform. Cross-Border Fulfillment Event Pipeline (FMS, FC, LOBO) • Led a cross-team Kafka event-pipeline initiative processing 20–50 million messages/day to coordinate daily order creation with downstream fulfillment across three independently-owned services.
Walmart Global Tech India
Sep 20182 yrs 9 mosMay 2021

OVT — Omni Vendor Terms (Multi-Tenant Vendor Onboarding Platform) • Technical lead for a separate 4-engineer team delivering multi-tenant vendor onboarding and international contract management services from requirements through release. • Led migration of a legacy mainframe application to a modern, UI-based Java platform, improving usability and operational efficiency for vendors.
Envestnet | Yodlee India
Mar 20171 yr 7 mosSep 2018

Bangalore

Envestnet | Yodlee India
Mar 20161 yr 1 moMar 2017

Bengaluru, Karnataka, India

Envestnet | Yodlee India
Aug 20157 mosFeb 2016

Bengaluru, Karnataka, India

Sep 20113 yrs 10 mosJun 2015

Ankita’s AI Stack

antigravity
antigravity
claude code
claude code
claude
claude
gemini
gemini

Education

Intermediate

Delhi Public School , Kalyanpur, Kanpur

199516 yrs2011

Bachelor of Technology (B.Tech.), Computer Science

B.B.D.N.I.T.M.

20114 yrs2015

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Headline

Tech Lead | Walmart | 11 years in Distributed Systems | AI & Scalable Architecture

About

I'm a Senior Software Engineer & Tech Lead with 11 years of experience building scalable backend systems and distributed microservices for high-traffic enterprise platforms. I enjoy solving complex engineering problems—whether that's designing systems that process millions of transactions, improving API performance and reliability, or leading teams to deliver production-ready software at scale. Over the years, I've worked across cloud platforms (AWS, GCP, Azure) and built systems with a strong focus on scalability, resilience, and maintainability. More recently, I've been exploring AI-powered engineering, designing agentic workflows that automate repetitive tasks, improve developer productivity, and streamline business processes. Core technologies: Java • Spring Boot • Microservices • REST APIs • Distributed Systems • System Design • AWS • GCP • Azure • CI/CD Beyond writing code, I enjoy mentoring engineers, driving architectural decisions, and collaborating across teams to turn complex ideas into reliable, scalable products.

Location

Bengaluru

AI stack

antigravity

claude code

claude

gemini

Work experience

Senior Software Engineer | Tech Lead at Walmart Global Tech India, May 2021 - Present · 5 yrs 5 mos, RAP — Returns Application Platform (Core Returns & Refunds Backend) — 6-Year SME • Subject-matter expert for 6 years on RAP, owning fault-tolerance design, fraud-prevention strategy, and platform evolution for the core returns and refunds backend end-to-end. • Implemented fraud-prevention checks in the Create Return API, preventing ~$150K in weekly losses (~$300K annually) through proactive, real-time validation — the closest analog on this resume to risk/fraud systems work. • Designed dual-write (Redis/PostgreSQL) consistency and a transactional-outbox pattern, closing a race-condition class of bugs and improving platform resiliency for high-value transaction flows. • Re-architected the return-creation flow, cutting latency from 6s to 200ms (95% reduction) and removing a major drop-off point in the customer experience. • Designed an instant-refund feature that cut customer refund processing time from 4–5 business days to under 10 minutes — directly analogous to payment-processing latency work. LOBO — Shipping & Carrier Integration Platform • Technical lead for an 8-engineer platform team; owned architecture and delivery for a high-volume system sustaining 3M+ requests/minute at peak (flash sales, holiday surges). • Built Kafka-based event pipelines, circuit-breaker/retry resilience, and Kubernetes horizontal autoscaling to keep the platform stable under extreme load. • Drove a 90% latency reduction and 87% faster carrier onboarding through an in-house, AI-powered schema-mapping and automation platform. Cross-Border Fulfillment Event Pipeline (FMS, FC, LOBO) • Led a cross-team Kafka event-pipeline initiative processing 20–50 million messages/day to coordinate daily order creation with downstream fulfillment across three independently-owned services.

Software Engineer III at Walmart Global Tech India, Sep 2018 - May 2021 · 2 yrs 9 mos, OVT — Omni Vendor Terms (Multi-Tenant Vendor Onboarding Platform) • Technical lead for a separate 4-engineer team delivering multi-tenant vendor onboarding and international contract management services from requirements through release. • Led migration of a legacy mainframe application to a modern, UI-based Java platform, improving usability and operational efficiency for vendors.

Senior Software Engineer at Envestnet | Yodlee India, Mar 2017 - Sep 2018 · 1 yr 7 mos, Bangalore

Software Engineer at Envestnet | Yodlee India, Mar 2016 - Mar 2017 · 1 yr 1 mo, Bengaluru, Karnataka, India

Associate Software Engineer at Envestnet | Yodlee India, Aug 2015 - Feb 2016 · 7 mos, Bengaluru, Karnataka, India

Student at BBBNITM, Sep 2011 - Jun 2015 · 3 yrs 10 mos

Education

Intermediate, Delhi Public School , Kalyanpur, Kanpur

Bachelor of Technology (B.Tech.), Computer Science, B.B.D.N.I.T.M.