Engineering Scalable Digital Solutions for Modern Businesses

Challenge

Heuristic ranking capped GMV and obscured fairness; offline models drifted quickly vs. seasonal inventory.

Approach

Two-stage retrieve-then-rank pipeline with embeddings, contextual bandits for exploration, fairness constraints, real-time inventory filters, and automated offline/online evaluation harness.

Stack

Challenge

Live class and exam bursts overwhelmed monolithic APIs; caching inconsistencies corrupted assessment submissions.

Approach

Decomposed hot paths: stateless signaling, sharded Redis, read-scaled Postgres, hierarchical CDN caching with signed segment URLs, and integrity streaming to proctoring subsystem.

Stack

Challenge

Mobile checkout friction, address errors, cross-border surprises, and PSP outages capsized conversion and margin.

Approach

Headless checkout BFF with progressive disclosure, verified address APIs, adaptive wallet placement, orchestrated payment routing with health checks, and transparent landed cost earlier in funnel.

Stack

Challenge

Fragmented scheduling and care management tools obscured population health priorities and inflated admin load.

Approach

Unified patient engagement layer atop EHR APIs with identity resolution, prioritized care gaps, encrypted collaboration, and governed analytics extracts.

Stack

Challenge

Tail latency and dashboard stalls threatened enterprise renewals; profiling culture was immature.

Approach

SLO-first program: tracing, query review board, Redis edge cache for hot aggregates, worker autoscaling with backpressure, and frontend performance budget in CI.

Stack

Challenge

Legacy PAS extensions could not expose stable APIs for embedded channels; underwriting checks were inconsistent across regions.

Approach

We introduced an API façade with event-driven underwriting orchestration, standardized screening pipelines, and a governed feature pipeline for pricing experiments.

Stack

Challenge

Spreadsheet chaos and delayed reporting blocked timely decisions and strained client trust during renewals.

Approach

Next.js dashboards with SSO, tenant isolation, curated REST/GraphQL APIs backed by warehouse-enriched semantic layer, lazy-loaded charts, feature-level entitlements, and drill-down narratives with annotation threads.

Stack

Challenge

Fragmented legacy tools slowed policy changes and introduced inconsistent data across brokers, underwriters, and claims teams.

Approach

We engineered a modular web platform with role-based workflows, audit trails, and integrations to core administration systems. QA automation guarded critical pricing and eligibility paths before every release.

Stack

Challenge

Fragmented automation, flaky suites, and manual regression cycles blocked shipping and hid quality signals from leadership.

Approach

Shared Playwright framework with fixtures, factories, dockerized dependencies, parallel sharding, Allure/HTML reporting, test impact analysis tied to git diffs, and weekly quality council publishing escape rate trends.

Stack