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Sai Erramada - Full Stack Java Developer in Wisconsin, USA

Sai Erramada

Mid-level Full-Stack Java Developer specializing in microservices and cloud-native systems

WalgreensConcordia University WisconsinWisconsin, USA6 Years ExperienceMid LevelWorks Remote

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About

Backend engineer with hands-on experience building real-time, event-driven systems at Walgreens, including a Kafka-based prescription status notification service and scalable pipelines for messy prescription/inventory data. Strong focus on reliability patterns (retries, idempotency, DLQs) and iterating based on pharmacist feedback to improve usability.

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Key Strengths

  • Owned end-to-end delivery of real-time notification feature (design → build → launch → iterate)
  • Event-driven systems implementation with Kafka to replace polling-based workflows
  • Reliability engineering for messaging pipelines (retries, idempotency, DLQ/error flows)
  • Scaled messy real-world data ingestion with validation/normalization and async processing
  • Incorporated user feedback post-launch (reduced alert noise via notification filtering)

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Experience

Full Stack Java DeveloperWalgreens · Jan 2025 – Present
Full Stack Java DeveloperHCL Technologies · Jan 2021 – May 2023
Java DeveloperKPIT Technologies · Jul 2019 – Dec 2020

Education

Concordia University Wisconsinmaster, Computer Science (2025)
Anurag College of Engineeringbachelor, Electronics & Communication (2020)

Languages

English

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Typically responds within 24 hours

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Sai ErramadaMid-level Full-Stack Java Developer specializing in microservices and cloud-native systems