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Hi, I'm Allen Chen, a passionate software engineer with extensive experience working in startups and large enterprises. I specialize in designing and deploying scalable solutions using AWS services and have expertise in JavaScript, Java, and Python. I enjoy building reliable microservice architectures that boost system efficiency and scalability. I am also a dedicated mentor, committed to helping developers grow technically and improving my team's overall performance. Agile methodologies are at the core of my work, where I focus on delivering high-quality software iteratively and collaboratively.…Hi, I'm Allen Chen, a passionate software engineer with extensive experience working in startups and large enterprises. I specialize in designing and deploying scalable solutions using AWS services and have expertise in JavaScript, Java, and Python. I enjoy building reliable microservice architectures that boost system efficiency and scalability. I am also a dedicated mentor, committed to helping developers grow technically and improving my team's overall performance. Agile methodologies are at the core of my work, where I focus on delivering high-quality software iteratively and collaboratively.

Allen Chen

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Hi, I'm Allen Chen, a passionate software engineer with extensive experience working in startups and large enterprises. I specialize in designing and deploying scalable solutions using AWS services and have expertise in JavaScript, Java, and Python. I enjoy building reliable microservice architectures that boost system efficiency and scalability. I am also a dedicated mentor, committed to helping developers grow technically and improving my team's overall performance. Agile methodologies are at the core of my work, where I focus on delivering high-quality software iteratively and collaboratively.…Hi, I'm Allen Chen, a passionate software engineer with extensive experience working in startups and large enterprises. I specialize in designing and deploying scalable solutions using AWS services and have expertise in JavaScript, Java, and Python. I enjoy building reliable microservice architectures that boost system efficiency and scalability. I am also a dedicated mentor, committed to helping developers grow technically and improving my team's overall performance. Agile methodologies are at the core of my work, where I focus on delivering high-quality software iteratively and collaboratively.

Available to hire

Hi, I’m Allen Chen, a passionate software engineer with extensive experience working in startups and large enterprises. I specialize in designing and deploying scalable solutions using AWS services and have expertise in JavaScript, Java, and Python. I enjoy building reliable microservice architectures that boost system efficiency and scalability.

I am also a dedicated mentor, committed to helping developers grow technically and improving my team’s overall performance. Agile methodologies are at the core of my work, where I focus on delivering high-quality software iteratively and collaboratively.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer at Amazon

May 31, 2025 - July 15, 2025

At Amazon, I contributed to building scalable, high-performance websites and AWS services, working on both frontend and backend. I improved user engagement by 25% building responsive UIs with React and Tailwind CSS and enhanced content management efficiency using Contentstack. On the backend, I architected microservices using Java, Python, and Golang achieving 99.99% uptime. I established event-driven architecture with AWS SQS improving real-time communication by 50%, integrated AWS API Gateway for secure microservice interactions, and optimized performance via Amazon ElastiCache. I introduced thorough automated testing practices increasing reliability by 30%. Additionally, I implemented Infrastructure as Code with AWS CloudFormation and automated CI/CD pipelines to reduce deployment errors and speed up deployment by 40%. I also led a team of 5 developers, collaborated with Agile teams, and mentored junior developers to elevate team productivity.

Full Stack Developer at TEKsystems

January 31, 2020 - July 15, 2025

As a Full Stack Developer at TEKsystems, I developed responsive front-end applications using advanced JavaScript frameworks increasing mobile engagement by 40%. I created pixel-perfect user interfaces using component libraries, integrated third-party APIs enhancing features adoption, and maintained high software quality with comprehensive testing reducing bugs by 20%. I optimized front-end performance leading to 50% faster load times. On the backend, I developed services with Python, C#, and Ruby improving system performance by 25%. I worked with cloud architectures on AWS, Azure, and GCP to ensure high scalability and reliability with 99.99% uptime. My experience also includes emerging technologies like AI and video streaming platforms, which helped increase service efficiency by 15% and reduce latency by 20%. Collaborating within Agile teams ensured successful, timely product delivery.