Dayana Sunny

Senior Software Engineer

Austin, TX

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About Me

Senior Software Engineer with 7+ years of experience building distributed systems, identity and access management platforms, event-driven architectures, and cloud-native backend services. Expertise in Go, Python, Kafka, PostgreSQL, Kubernetes, AWS, and GCP. Proven track record delivering scalable infrastructure, fraud prevention systems, developer productivity tools, and high-availability platforms at Cloudflare, Shipt, Apple, and IBM.

Skills

Languages: Go, Python, JavaScript, TypeScript, Swift, SQL

Backend & Distributed Systems: Microservices, REST APIs, Kafka, Temporal, Event-Driven Architecture, Distributed Systems, Background Processing

Databases & Storage: PostgreSQL, Redis, Elasticsearch, Couchbase, Snowflake, DynamoDB, MySQL, Cassandra

Cloud & Infrastructure, Observability: AWS, GCP, Kubernetes, Docker, GitLab CI/CD, TeamCity, TravisCI, Prometheus, Grafana, Splunk

Security & Identity: OAuth2, OIDC, SSO, API Authentication, Access Control

Experience

Software Engineer, Identity Access Management (AuthN) — Cloudflare

Austin, TX | Sep 2025 – May 2026

  • Designed and implemented encryption workflows to eliminate approximately 3 million plaintext API keys across Cloudflare services, significantly improving platform security posture.
  • Developed large-scale migration processes using PostgreSQL stored procedures and Vault-based key management systems.
  • Redesigned OAuth consent flows for third-party integrations using Go, React, Vite, and Cloudflare Workers.
  • Added account-selection capabilities and improved user experience for OAuth authorization workflows.
  • Migrated microservices from TeamCity to GitLab CI/CD pipelines, improving deployment automation and maintainability.
  • Contributed to Single Sign-On (SSO) solutions supporting academic (.edu) organizations.

Technologies: Go, PostgreSQL, Vault, React, Cloudflare Workers, GitLab CI/CD

Software Engineer — Shipt

Remote, CA | Feb 2023 – Oct 2024

Identity Verification Platform

  • Designed and developed a distributed identity verification platform processing 800–1,200 verification events daily and supporting onboarding workflows for 300,000+ shoppers annually.
  • Built reusable verification workflows used for onboarding, fraud prevention, and virtual card issuance.
  • Developed resilient Kafka consumers and webhook processing systems capable of handling asynchronous verification events.
  • Partnered with Product and Operations teams to translate business requirements into scalable technical solutions.
  • Improved fraud prevention capabilities by automating identity verification for new and existing shoppers.

Workflow & Platform Optimization

  • Replaced a 25+ hour virtual card issuance batch process with Temporal workflows, dramatically reducing processing time and eliminating onboarding bottlenecks.
  • Built distributed workflows with improved fault tolerance, observability, and operational reliability.
  • Led engineering efforts supporting metro-merger initiatives involving large-scale shopper and delivery zone migrations.

Search & Internal Tooling

  • Designed and implemented Elasticsearch-powered applicant search capabilities.
  • Built indexing pipelines and APIs supporting search by name, phone number, email, zip code, and address.
  • Developed administrative tooling and bulk-processing APIs used by operations teams.
  • Created Snowflake queries and Python automation scripts for operational reporting and troubleshooting.
  • Mentored junior engineers through design reviews, debugging sessions, and technical guidance.

Technologies: Go, Kafka, PostgreSQL, Elasticsearch, Temporal, Snowflake, Python

Software Engineer, Retail Store Operations — Apple

Sunnyvale | Nov 2019 – Aug 2022

  • Built distributed operational tooling deployed across Apple data centers supporting retail store operations worldwide.
  • Developed a microservice dependency graph platform using Node.js and event-driven architectures to visualize service relationships and dependencies.
  • Designed and implemented APIs consumed by web and iOS applications.
  • Built Splunk dashboards and observability solutions providing operational visibility into distributed systems.

High Availability Monitoring Platform

  • Designed and developed a highly available Watchdog platform for real-time monitoring of 7 application suites and 20–30 microservices health across 3 data centers.
  • Built Redis-backed monitoring systems continuously validating service availability and load balancer configurations.
  • Implemented distributed health-checking jobs and configuration synchronization workflows.
  • Ensured high availability and consistency across geographically distributed deployments.

Developer Productivity & Observability

  • Developed a Go-based Prometheus exporter framework supporting PostgreSQL, Couchbase, and Elasticsearch.
  • Standardized metrics collection and observability across multiple internal services.
  • Built internal iOS applications using SwiftUI and Combine frameworks.

Technologies: Go, Node.js, Swift, SwiftUI, Redis, PostgreSQL, Couchbase, Elasticsearch, Prometheus, Splunk

Cloud Software Engineer — IBM

Austin, TX | Apr 2017 – Oct 2019

  • Developed cloud platform services including cart, order, and fulfillment microservices supporting enterprise cloud offerings.
  • Built REST APIs using Go and Python supporting provisioning and lifecycle management workflows.
  • Contributed to the design and implementation of CloudMatrix fulfillment services responsible for cloud resource provisioning.
  • Leveraged RabbitMQ for event-driven communication between distributed services.
  • Containerized microservices using Docker and deployed workloads on Kubernetes infrastructure.
  • Participated in Agile development processes including sprint planning, architecture discussions, and cross-functional collaboration.

Technologies: Go, Python, RabbitMQ, Docker, Kubernetes, CouchDB

Education

Master of Science: Computer Science | Illinois Institute of Technology — Chicago | Jan 2015 – Dec 2016

Bachelor of Technology | Federal Institute of Science and Technology | Sep 2008 – May 2012

Contact

Email: dayanams11@gmail.com

Phone: +1 773 540 9849

Website: dayanasunny.com