Jan 2023 – Oct 2023 · 9 mos

• Working with a team of 8 engineers to plan and execute the roadmap for Int'l Messaging
• Leading engineering efforts for cloud cost monitoring and optimization
• Actively involved in design discussions, code reviews, incident handling, and hiring
• Initiated a unified technical onboarding experience for new hires which got adopted across teams

Jul 2021 – May 2023 · 1 yr 10 mos

• Plivo provides a messaging and voice platform for business communications.
• Leading efforts for migration to OpenTelemetry across product engineering teams
• This decouples application observability from the underlying infrastructure
• Created a common library to be used by different teams for seamless migration
• Lead performance optimisation efforts across services in our multi-region stack
• Improved p99 latencies by up to 10x using query batching, better DB indexes, caching, DB connection pooling and prepared statements, granular observability, etc.
• Brought down cloud costs by ~6% (saving 1000s of $ per month) using fine-tuned autoscaling, batching SQS requests, latest EC2 instance types, S3 intelligent tiering, etc.
• Laid the foundation for WhatsApp as a new communication channel offering

Oct 2019 – Jun 2021 · 1 yr 8 mos

• Lead efforts to reach 99.99% availability for the messaging platform
• Deployed core services in a multi-region active-passive setup for quick disaster recovery
• Built an event-driven service to automatically migrate platform traffic to passive AWS region when active region fails
• Implemented dynamic SMS routing system to improve delivery & profit margins
• Automated manual process of periodically ranking telecom carriers for quality of service by integrating with third-party carrier testing tool
• Improved platform resilience by handling transient downtime of telecom carriers using retries & adding spam mitigation using geo-restrictions to internal operations dashboard
• Dockerized SMS Gateway & reduced failure recovery times by ~15%
• Added visibility to international profit margins in the data analytics pipeline (Airflow)

Jun 2018 – Oct 2019 · 1 yr 4 mos · On-site

• SocialCops is a data collection and intelligence platform facilitating data-driven decision-making.
• Engineered a batch-processing architecture to export primary data from our data collection platform, Collect, to tools like Google Sheets & Zapier
• Developed a Python library & API to access product data & usage metrics, empowering the business unit to make data-driven decisions
• Built near real-time search & analytics capability using Elasticsearch to enable users to better monitor their data collection efforts
• Responsible for hiring for backend engineering roles & mentoring junior engineers & interns across teams
• Spoke about near real-time data sync between MongoDB & Elasticsearch at Delhi Elastic Meetup (https://bit.ly/2PBa0Cx)

Jun 2016 – May 2018 · 1 yr 11 mos · On-site

• Improved & maintained tabular data export service by making it configurable (filters, email data archives, multiple file formats, etc.) & more performant (reduced time to export by ~26% using memoization)
• Integrated billing & subscription management into the product
• Scaffolded load testing setup for India’s national data platform (https://bit.ly/2QSRcew)
• Designed a Grafana Dashboard for Kubernetes Cluster Health Monitoring (grafana.com/dashboards/2577) (team of 2)
• Setup continuous deployment pipelines for company website on AWS CodePipeline
• Built a CLI tool to simplify provisioning & backups of AWS resources (github.com/checkaayush/saw)
• Provisioned & managed Kubernetes clusters on multiple cloud providers

Oct 2015 – Apr 2016 · 6 mos · Remote

• Automate.io helps run automated business workflows on cloud applications.
• Integrated cloud application APIs like Mailchimp, Trello, Twitter, etc. into the core platform
• Simplified integration testing and simulation of business workflows

May 2015 – Jul 2015 · 2 mos · New Delhi Area, India

• Engineered distributed web scrapers for fetching and parsing open data (~815 M rows)
• Developed a Python utility for synchronized and automated upload of data to Google Drive
• Built a service exposing natural language querying for an internal entity recognition engine

May 2014 – Jul 2014 · 2 mos · New Delhi Area, India

• Portable Real-Time Heart Rhythm Monitor
• Prototyped a 3-probe Electrocardiograph using low precision circuitry
• The cost of preliminary cardiovascular analysis using the prototype was ~1000 INR