Dayana Sunny

Software Engineer - Cloudflare

Sep 2025 - Present

• Worked as a software engineer on the Identity and Access Management (AuthN) team.
• Encrypted and decrypted plaintext API keys using Vault in dependent services, and cleaned up about 3 million plaintext keys using a batch stored procedure in Postgres.
• Redesigned OAuth consent for third-party OAuth using Golang, React, Vite, and Cloudflare Workers and added account-selection support to the OAuth consent UI.
• Migrated two microservices from TeamCity to GitLab CI.
• Started handling SSO for academic .edu subdomains using Golang.

Software Engineer - Shipt

Feb 2023 - Oct 2024

• Worked as a software engineer on Shipt's Shopper Acquisition and Activation team.
• Designed and developed a scalable microservice with a webserver and Kafka consumer workers for identity verification of new and existing shoppers using Persona.
• Designed and implemented Kafka consumers and callbacks to make identity verification reusable for fraud checks in virtual card creation.
• Analyzed and proposed technical solutions in the bi-weekly Persona sync meetings with internal product and ops based on product and ops requirements.
• Integrated new technologies into existing systems, increasing capabilities and improving overall performance.
• Created a new Elasticsearch index for shopper applicants, wrote search queries, and exposed the results over an endpoint.
• Replaced a virtual-card cron job that ran for more than 25 hours with a Temporal workflow, reducing delays for new and existing shoppers and preventing revenue loss.
• Created cron jobs as part of a metro-merge initiative to update all the shopper's metros in the database. Shopper zones and delivery windows were mapped to the newly created zones and updated the delivery windows to the new zones using the cron jobs.
• Wrote Python scripts to decertify shoppers in select metros and pull transition history from Fountain, and created an admin bulk endpoint to move many candidates off the waitlist.
• Created indexes and database migration scripts to improve performance.
• Mentored junior engineers to guide assigned tasks and debug issues.
• Wrote Snowflake queries to extract data and debug issues.
• Worked with the product team to understand the requirements and design the solution.

Software Engineer - Apple

Oct 2019 - Aug 2022

• Worked as a tools engineer on an Apple Retail Store Operations team and built tools distributed across datacenters.
• Developed a microservices call graph showing service dependency matrices across environments using the Probot event-driven framework in Node.js.
• Created API endpoints for web and iOS clients, logged results to Splunk, and built dashboards from those metrics.
• Designed & developed an internal iOS app (iPad & iPhone) in Swift using SwiftUI, Combine frameworks.
• Developed a Watchdog application for dynamic real-time monitoring of microservice replicas using load balancer configs and a Redis in-memory cache for continuous health monitoring.
• Implemented jobs for continuous health checks and periodic fetching of active configurations from GSLB/CDN.
• Watchdog was distributed across multiple datacenters for high availability and data consistency.
• Designed and developed a Prometheus exporter CLI tool in Golang to execute database queries, check uptime, and fetch relevant real-time metrics. It queried multiple datastores including Couchbase, Elasticsearch, and Postgres, and was deployed as a sidecar to microservices to expose metrics in Prometheus format.

Cloud Software Engineer - IBM

Apr 2017 - Oct 2019

• Developed features in cloud brokerage cart-service, order service, and fulfillment microservices using Golang (Gin-gonic), Python (Flask-RESTPlus), and CouchDB (NoSQL). Used RabbitMQ for internal event-driven microservice communication.
• Contributed to the design and development of the Cloudmatrix fulfillment microservice, a provisioning agent for cloud offerings that updates users on provisioning and de-provisioning status.
• Developed order search endpoints with filter parameters, including gte/lte date filters, from a database with more than 50,000 records.
• Containerized Python and Golang microservices using Docker and deployed them to the cloud. Used Kubernetes for orchestration and Travis CI for CI.
• Worked in an Agile Scrum environment and participated in bi-weekly sprint planning, design reviews, and Scrum meetings.
• Collaborated with management, internal and development partners regarding design status and project progress in daily standups and bi-weekly sprint planning sessions.

Database Developer Intern - Mercadien Group

Aug 2016 - Nov 2016

• Alert optimization data pull: worked for Investors Bank to extract alert data, transaction data, and SARs from the Fiserv FCRM database under various conditions and factors.
• Developed scripts and stored procedures in MS SQL Server 2012 to extract customer's Risk profile and alert information from the FCRM database.
• Customer's Dynamic Risk Rating (DRS) using FCRM: Dynamic Risk Scoring utilizes a monthly risk score output of each customer to maintain a high-risk customer list.
• Calculated customer risk scores based on various factors.
• Developed scripts and stored procedures in MS SQL Server 2012 to generate the High-risk Customers list based on various conditions and factors.