Headline

Software Engineer, PdE @Mercari | Building Global(Cross border) Product at Scale | Java, GoLang, Microservices, Distributed Systems, AI Native | ex - @UniAcco @Wozo Gaming | BTech CSE

About

I build backend systems that scale — and ship features that move numbers. At Mercari, I engineered an Image Search system now driving ¥77.4M GMV/month at 1801% ROI, serving 2M+ users across one of Asia’s largest C2C marketplaces. I’ve contributed to multi-country product launches (HK, TW, US), improved latency SLOs from <1% → 65% compliance, and owned features end-to-end — from system design to production monitoring. Beyond backend, I work across the frontEnd using AI-native workflows (Cursor, Copilot) and have led org-wide AI initiatives as a single-stakeholder pDE — driving POCs that cut across product, design, and engineering. I’m deeply interested in GenAI and LLMs & RAG — not just as a trend, but as tools I actively integrate into how I build and ship products faster. Outside of building: I conduct engineering interviews, mentor junior engineers, and contribute to org-wide growth and planning initiatives. Outside of Work - I love writing my thoughts, Learnings & Sharing what’s beneficial for others that I could know earlier. My Medium Blog - https://medium.com/@vandana.igdtuw/i-built-an-image-search-system-heres-what-i-actually-learned-b56abacdc06f

Location

Gurugram

AI stack

codex

cursor

Work experience

SDE-2(AI Native) at Mercari India, Feb 2026 - Present · 7 mos, Built an Image Search system enabling users to discover similar products using images by designing scalable search APIs and integrating similarity-based retrieval, embeddings, vector DB across Mercari catalog services, increased ¥77.4M/month GMV lift and 1,801% ROI, used by 2M+ monthly search UUs. Authored TDDs to drive architecture decisions and align with business requirements. • Expanded scope into full-stack product engineering - independently driving frontend development, PRDs, EDDs, and UI/UX design end-to-end using AI-native development workflows (Cursor, Copilot), shipping features E2E at accelerated pace; delivered Like utility features with +30.7% / +29.6% / +40.1% improvement (iOS/Android/Web) independently. • Developed the Global One Product app, owning the backend services. Delivered 6+ features including partial SDUI homescreen, deep link generator, account management, checkout service, item details screen & SERP(SpringBoot). • - Launched in HK, TW and US, cutting per-market localization integration effort by 40%. • Led development of search and metadata APIs and a notification generator service in Java, directly improving product GMV; • Integrated circuit breakers across multiple upstream microservices, tuned error threshold from 1,000 → 5,000, reducing CB-triggered errors by 65% in production, improving system resilience and fault tolerance. • Implemented SLOs, monitors, and PagerDuty alerts via Datadog across Backend, BFF endpoints - deployed error budget burn alerts and reduced unnecessary on-call pages by 50% via threshold tuning, pages, significantly improving observability and incident response time. improved Image Search latency SLO from <1% → 65% compliance (p95 upper bound 1.5s). • Created CI/CD pipelines and automated database schema migrations using Goose for master service via environment-scoped GitHub Actions workflows (dev + prod) reducing manual deployment effort by 60%, enabling safe version transitions.

Software Engineer at Mercari India, Jun 2024 - Feb 2026 · 1 yr 9 mos

Software Engineer Intern at Mercari India, Jan 2024 - Jun 2024 · 6 mos

Software Engineer Intern at UniAcco, Jun 2023 - Aug 2023 · 3 mos, Mumbai, Maharashtra, India

Mentor at Protégé IGDTUW, Feb 2023 - Jun 2023 · 5 mos

Software Developer Intern at Wozo Gaming, Oct 2022 - Dec 2022 · 3 mos

Machine Learning Intern at INDIRA GANDHI DELHI TECHNICAL UNIVERSITY FOR WOMEN, Jun 2022 - Jul 2022 · 2 mos, New Delhi, Delhi, India

Education

Bachelor of Technology - BTech, Computer Science, Indira Gandhi Delhi Technical University for Women

Xll, PCM with computer science, kendriya vidyalaya