Staff Engineer

- Built an AI meeting assistant that records calls (Zoom/Teams/Meet) and in‑person sessions (mobile), generates structured notes, drafts follow‑up emails, and creates CRM tasks; human‑in‑the‑loop review flows before syncing to CRMs. -Implemented compliance rule engine (pre/post‑meeting checks, retention/attestations, restricted terms escalation) with policy‑as‑code and auditable decision logs. -Built conversational recommendation agents using fine-tuned Llama 2 with RAG over vector DBs (Pinecone) and multi-agent debate systems (self-correction via Langgraph) to improve consensus in knowledge-intensive tasks. -Led the design of a decentralized MARL framework using Ray/RLLib and PettingZoo and solved credit assignment challenges in cooperative agents by implementing QMIX and MADDPG algorithms with custom reward shaping. - Shipped CRM connectors for Salesforce, Wealthbox, Redtail with robust token/refresh handling, idempotent writes, and conflict resolution against user edits. -Architected and optimized high-performance RESTful APIs using FastAPI with Python, implementing Redis caching and indexing strategies to improve data integration efficiency by 60,000 rpm and reduce API response times. -Designed and optimized GraphQL backend systems by resolving the N+1 query problem using DataLoader, enabling efficient batching and caching of database queries, which improved performance and scalability for complex data-fetching operations. -Improved application performance by implementing AWS Elastic Load Balancing and effectively resolving RPS bottlenecks while mitigating DDoS attacks through automated traffic monitoring and rate limiting. -Addressed concurrency issues by implementing optimistic locking and utilizing message queues like AWS SQS, which enhanced data integrity and allowed the application to handle up to 500 concurrent users without performance degradation. -Developed a responsive and pixel-perfect insurance website using React/Next.js with TypeScript, optimizing performance through advanced techniques such as React Query for efficient data fetching and caching strategies, increasing in user experience satisfaction and resulting a 25% boost in conversion rates. -Engineered high-performance server-side rendered (SSR) applications using Next.js13 with the app router, significantly improving SEO visibility and optimizing routing for enhanced user navigation and experience. -Utilized Capacitor to bridge web applications with native mobile functionalities, enabling the development of hybrid mobile applications that leverage device features while maintaining a consistent codebase across iOS and Android platforms. -Enhanced DevOps workflows by designing and implementing CI/CD pipelines using Jenkins, Docker, and best practices like optimizing Dockerfile layers, leveraging multi-stage builds, and utilizing Docker Hub and AWS ECR caching to reduce image build times. -Championed Test-Driven Development (TDD) practices within the team, writing comprehensive unit, integration and e2e tests using frameworks like Jest, Pytest and Mocha, which improved code quality, reduced bugs by 40%, and facilitated smoother feature rollouts.

Senior Engineer

- Owned the 3-year technical vision for Alexa Subscriptions, aligning 8 product lines and ~50 engineers; platform powers all voice-driven subscription funnels (Alexa+, Prime, Kids+, Hey Disney!, Skills) and generates multi-million ARR. -Built an automated LLM evaluation pipeline benchmarking 100+ model/prompt variants weekly; reduced manual validation by 95% and gated 15+ Alexa+ launches across 20 KPIs. -Standardized the fine-tuning path for 1P LLMs, improving 8 conversational KPIs. -Led design of a cross-device content recommender now live across 6 voice and screen experiences. -Mentored 9 engineers with 6 promotions to SE2/SE3; conducted 70+ technical interview loops and trained 5 new interviewers. -Served as Alexa on-call incident lead for 10 high-severity events; cut MTTR by ~50% and established org-wide ops reviews, design-review forums, and knowledge-sharing practices. -Eliminated 190 ms of user-perceived latency through parallelization and speculative execution. -Devised automated testing and release strategy enabling full CI/CD, replacing manual test and release processes. -Designed and shipped multimodal (voice + visual) feature discovery for Echo Show (2nd Gen). -Architected and launched a bulk Alexa skill enablement service, unlocking skill bundling products. -Played a key role in integrating third-party APIs (payment gateways, email services, social media authentication and etc) to expand functionality and improve user experience. -Designed and delivered Hey Disney! voice-based subscription sign-up flow. -Mentored junior engineers in distributed systems (Hadoop/Spark) and early deep learning frameworks (TensorFlow 1.x, Theano). -Advocated for and implemented best practices for code quality, using tools like ESLint and Prettier, and TDD (Test-Driven Development) to improve overall development speed and product quality.