Summary

Experience

Senior Software Development Engineer|Amazon Web Services (AWS)

Seattle, WAMar 2018Present

• Led the development of a critical microservices-based platform, improving system scalability by 40% and reducing latency by 25% for a key AWS service.
• Architected and implemented new API endpoints using Node.js and TypeScript, handling over 1 million daily requests with a 99.9% uptime.
• Mentored a team of 5 junior developers, improving code quality metrics by 30% and fostering a collaborative engineering culture.
• Optimized database queries and schema designs (PostgreSQL, DynamoDB), resulting in a 15% reduction in operational costs.

Software Engineer II|Expedia Group

Seattle, WAJul 2014Mar 2018

• Developed and maintained core features for the travel booking platform using Java, Spring Boot, and React, contributing to a 10% increase in user engagement.
• Improved application performance by refactoring legacy code and implementing caching strategies, reducing page load times by an average of 2 seconds.
• Collaborated with product managers to translate business requirements into technical specifications for new features, deploying over 15 major updates annually.
• Implemented unit and integration tests, increasing code coverage to 85% and significantly reducing post-release bugs.

Projects

Serverless E-commerce Platform

Jan 2022Jun 2022

• Designed and implemented a full-stack e-commerce solution using AWS Lambda, API Gateway, DynamoDB, and React, achieving sub-second response times.
• Integrated Stripe for payment processing, enabling secure transactions and reducing development time by 30%.
• Developed a CI/CD pipeline with GitHub Actions, automating deployments and testing.

Real-time Chat Application

Mar 2021Aug 2021

• Built a real-time chat application using Node.js, Socket.IO, and MongoDB, supporting concurrent users and secure messaging.
• Implemented user authentication and authorization features, enhancing data privacy and system security.
• Deployed the application on an AWS EC2 instance, managing server configuration and scaling.

Personal Portfolio & Blog

Sep 2023Present

• Developed a personal portfolio and blog site using Next.js and Tailwind CSS, focusing on performance and SEO optimization.
• Integrated a headless CMS (e.g., Contentful) for dynamic content management, streamlining blog post creation.
• Achieved a perfect Lighthouse score for performance and accessibility, ensuring a superior user experience.

Education

University of Washington|Master of Science in Computer Science

Seattle, WASep 2012Jun 2014

• Achieved a GPA of 3.9/4.0, specializing in Distributed Systems and Cloud Computing.
• Awarded the Dean's Scholarship for academic excellence.

Poznan University of Technology|Bachelor of Science in Computer Science

Poznan, PolandSep 2008Jun 2012

• Graduated Magna Cum Laude, completing a thesis on real-time data processing.
• Developed a real-time analytics dashboard for university research, enhancing data visualization for over 50 projects.

Skills

Programming Languages

JavaScriptTypeScriptPythonJavaGo

Front-End

ReactAngularVue.jsHTML5CSS3ReduxWebpack

Back-End

Node.jsSpring BootExpress.jsRESTful APIsMicroservices

Databases

PostgreSQLMySQLMongoDBDynamoDBRedis

Cloud & DevOps

AWS (EC2, S3, Lambda, SQS, SNS)DockerKubernetesJenkinsGitTerraform