Project Management

• Spearheading release planning and driving the platform through its production releases.
• Sustaining a reliable weekly delivery cadence across the team.

Product Management

• Owning the customer experience — translating raw requirements into design and delivery.
• Mentored 2 interns to independently ship a user-system connector and a deployment manager.

Feature Development (Golang & Cloud Integrations)

• Developed the OAuth2.0 based Identity server and client, implementing authorization code and ROPC grant flows.
• Led the design, entire backend development, and rollout of the product in the AWS China region, including app distribution on major stores and WeChat Sign-In integration.
• Optimized OTA status flow for millions of devices, achieving ~99% cost reduction.
• Designed an analytics dashboard leveraging OpenSearch.
• Developed scalable bulk device certificate registration using ECS.
• Concurrent processing using channels and semaphore.

Scalability

• Key contributor to the 4M-device stress test, leading cost analysis, observability dashboards, and performance investigations.

Collaboration

• Pioneered solutions for two business-critical, time-sensitive issues, resolving them under high-pressure conditions.
• Authored MQTT API documentation using AsyncAPI.

FinOps

• Delivered a comprehensive cost-analysis framework (feature/service/client-based), manually reviewing 250K+ lines of code pre-AI era.
• Proactively refactored backend workflows to optimize DB performance and reduce latency; actively involved in all optimization discussions.
• Mentored 3 interns on developing a FinOps calculator project.

Feature Development (Golang & Cloud Integrations)

• JSON data processor.
• Groups based on dynamic filters.
• Async OTA support for firmware >5 MB.
• Clean product uninstallation.
• Alexa + Matter integration for local device communication.
• End-to-end user migration across backend, apps, dashboards, CLI, and integrations for 5+ enterprise customers.
• MQTT devices: MQTT-based file delivery.
• HTTP devices: mTLS-based APIs for devices and CA certificate management.

Security & Compliance

• SMS-based MFA.
• DB backup and restore.
• GDPR compliance by encrypting PI data with two-level caching and cost-optimized lazy migration.
• API logging with CSV exports to S3 for compliance.

Documentation

• Enhanced developer documentation with Swagger versioning and limits/quotas references.
• Wrote release notes for every release.

Collaboration

• KT to new joiners.
• Reviewed 90% of the code written.
• Speaker at ESP DevCon '22, presenting on event filtering mechanisms.

DevOps

• Automated end-to-end operations, previously manual, across 10+ CI/CD pipelines.
• Revamped company-wide AWS account management using SSO-based access over passwords, plus identity governance.