Abhishek Kumar

What I built:

• →Designed an LLM orchestration pipeline (Google Gemini API) that analyzes a 7-day rolling window of real user adherence to dynamically recalculate daily calories, macros, and workout intensity.
• →Built Indian diet-aware nutrition logic — recognizing regional foods and portion patterns instead of defaulting to Western food databases.
• →Implemented deterministic fallback rules with structured JSON schema outputs to ensure consistent, safe coaching responses even on LLM edge cases.
• →Delivered a full-stack adaptive coaching experience — adapting plans to off-days instead of penalizing them, reducing user guilt and improving retention.

What I built:

• →Engineered an isolated multi-vendor storefront platform with a streamlined 4-step merchant onboarding wizard and dynamic theme token system (apparel, lifestyle, electronics, grocery).
• →Built instant slide-out cart drawers and automated Indian pincode serviceability validation with Cash on Delivery (COD) checkout workflows.
• →Developed a merchant self-serve inventory and fulfillment control center with isolated routing for independent vendor storefront domains.

What I built:

• →Built a no-code landing page builder that gets app makers live in under 5 minutes — with one-click App Store / Google Play import pulling icons, screenshots, ratings, and descriptions automatically.
• →Implemented smart device routing via QR codes and deep links — detecting visitor devices and redirecting to the correct store automatically.
• →Integrated privacy-first, zero-cookie analytics fully compliant with GDPR/CCPA — no consent banners, no tracking overhead.
• →Delivered instant SSL subdomains and custom domain support with global CDN caching, plus templates for app launches, SaaS products, pre-launch waitlists, and developer portfolios.

What I built:

• →Architected enterprise financial reporting microservices in Java & Spring Boot, consolidating live banking transaction feeds into a real-time analytics module for operators.
• →Engineered low-latency query handling and resilient data pipelines across high-volume institutional banking datasets.
• →Built responsive Angular UI components for complex, high-density financial data visualization and automated compliance report exports.
• →Developed the Investment View Report for High Net Worth Individuals (HNWIs) — sector allocation breakdowns, country-wise allocation maps, performance curve charts over time, and granular transaction-level details across all asset classes.

What I built:

• →Spearheaded end-to-end monolithic-to-microservice migration, decoupling legacy delivery systems into resilient Spring Boot microservices with 100% service uptime maintained during cutover.
• →Architected enterprise-grade authentication integrating OKTA SSO with PKCE (Proof Key for Code Exchange) flow across all exposed REST endpoints — neutralizing authorization vulnerability vectors.
• →Engineered pre-advice integration pipelines with P4e third-party logistics services to transmit high-volume package routing schedules globally.
• →Developed responsive Angular 15 operator portals improving dispatcher workflows, component reusability, and backend API integration efficiency.

What I built:

• →Architected plug-and-play merchant onboarding microservices for EDC terminals, integrating synZ OCR for instant automated KYC verification of PAN & GST documents via mobile app — reducing onboarding from days to minutes.
• →Engineered mutual TLS (2-way SSL) authenticated REST microservices consuming YES Bank core banking APIs (getBalance, startTransfer, getStatus) for automated merchant fund settlements.
• →Developed the paperless Digital E-Charge Slip microservice dispatching electronic receipts via GupShup SMS gateway across More Retail / MRPL and Manipal Hospitals.
• →Implemented distributed transaction tracing with Spring Sleuth and health metrics with Spring Actuator — enabling sub-second root-cause diagnosis across payment switch hops.

What I built:

• →Engineered distributed scheduling and orchestration engines using Java, Spring MVC, Hibernate, and Quartz Scheduler with Git-integrated pipeline triggers and Jira API hooks for automated issue tracking.
• →Built the Accurate Background MVR microservice integrating directly with US state DMV databases to retrieve 3–7 year driving history records for continuous driver monitoring (VEREIT).
• →Delivered the DHL WTX Automated Map Generator using IBM WTX Java APIs to auto-generate complex EDI maps from configuration specs — eliminating all manual WTX IDE mapping overhead.