Kwame Osei | Software Engineer II at Amazon

Summary

Experienced Software Programmer with 6 years of expertise in developing scalable software solutions and optimizing system performance. Proficient in Python, Java, and cloud platforms like AWS, with a strong background in full-stack development and Agile methodologies. Adept at transforming complex requirements into robust and efficient applications that drive business value and enhance user experience. Passionate about continuous learning and applying cutting-edge technologies to solve real-world problems.

Experience

Software Engineer IIAmazon

Seattle, WAMar 2021Present

Led the development and deployment of a new microservice for order processing using Python and AWS Lambda, reducing latency by 20% and reliably handling over 1 million transactions daily.
Optimized database queries and indexing for a critical e-commerce platform's PostgreSQL database, improving response times by 15% and achieving annual infrastructure cost savings of $50,000.

Software DeveloperMicrosoft

Redmond, WAJul 2019Mar 2021

Developed and maintained core backend services for Azure Cognitive Services using C# and .NET Core, supporting over 500 enterprise clients globally.
Contributed to a team effort that improved API reliability and uptime by 99.9% through rigorous unit testing, integration testing, and comprehensive code refactoring.

Projects

Distributed Task Queue

Jan 2022Jun 2022

Developed a fault-tolerant distributed task queue in Go, capable of processing 5,000 tasks/second with horizontal scaling.

Serverless Image Processing API

Sep 2020Feb 2021

Created an AWS Lambda-based serverless API using Python for on-demand image resizing and watermarking, reducing operational costs by 80% compared to traditional servers.
Integrated with S3 for storage and API Gateway for exposing endpoints, achieving an average response time of under 200ms.
Implemented secure authentication and authorization with AWS IAM, ensuring data privacy and access control for users.

Real-time Chat Application

Jan 2019May 2019

Engineered a real-time chat application using Node.js, Express, and Socket.IO, supporting concurrent connections for over 100 users.
Implemented user authentication and message persistence using MongoDB, ensuring secure and reliable communication.
Developed a responsive front-end with React, providing an intuitive and seamless user experience across devices.

Education

University of WashingtonMaster of Science in Computer Science

Seattle, WASep 2017Jun 2019

Completed thesis on distributed systems optimization, improving data processing efficiency by 15%.
Achieved a 3.9 GPA, focusing on advanced algorithms and cloud computing.
Awarded Graduate Fellowship for research in machine learning applications.

Georgia Institute of TechnologyBachelor of Science in Computer Science

Atlanta, GAAug 2013May 2017

Graduated with High Honors, maintaining a 3.8/4.0 GPA.
Awarded Dean's List for 6 consecutive semesters for academic excellence.
Member of the ACM Programming Team, competing in regional competitions.

Skills

Programming Languages

PythonJavaC#JavaScriptGoSQL

Cloud Platforms & DevOps

AWS (EC2, S3, Lambda, DynamoDB, RDS)AzureDockerKubernetesTerraformJenkinsGitCI/CD

Web Technologies

ReactNode.jsSpring BootRESTful APIsGraphQLMicroservices

Databases & Data

PostgreSQLMySQLMongoDBRedisApache KafkaData Structures & Algorithms

Methodologies & Tools

AgileScrumJiraConfluenceUnit TestingSystem DesignProblem Solving