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Kefyalew User

@kefyalewuser

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Senior Backend Engineer with expertise in scalable backend systems.

United States

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What I'm looking for

I am looking for a role that fosters innovation, encourages collaboration, and offers opportunities for professional growth.

I am a Senior Backend Engineer with 9 years of experience in developing scalable, high-performance backend systems. My expertise lies in JavaScript, TypeScript, Python, and Go, with a strong focus on API design and cloud-based microservices architectures. I have a proven track record of delivering clean, maintainable code and solving complex technical challenges in fast-paced environments.

At Medely, I developed a healthcare staffing platform that achieved 99.9% uptime and improved response times by 30%. My role involved architecting scalable microservices, implementing real-time communications, and integrating AI-driven matching algorithms. I am passionate about mentoring junior engineers and collaborating in Agile teams to enhance productivity and code quality.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Engineer

Current

Medely

Apr 2023 - Present (2 years 2 months)

Developed and scaled a healthcare staffing platform enabling real-time and AI job matching for healthcare professionals, using Node.js, Django, React, Typescript, Go and AWS services, achieving 99.9% uptime. Architected scalable backend microservices to handle high-volume healthcare data, improving platform response times by 30%. Implemented real-time communications using WebSocket and RESTful API

Node Django React TypeScript Go AWS Microservices REST APIs GraphQL RabbitMQ

Software Development Engineer III

Amazon

Apr 2019 - Present (6 years 2 months)

Developed an IoT system to monitor industrial equipment using AWS IoT Core, Node.js, and Python, resulting in real-time data insights for warehouse operations. Built interactive dashboards using React, Node.js, and WebSocket to visualize performance metrics for IoT devices, increasing user engagement. Architected a serverless backend infrastructure with AWS Lambda, API Gateway, DynamoDB, and Kines

AWS IoT Core Node Python React AWS Lambda API Gateway DynamoDB Kinesis

Web Developer

Deloitte

Jan 2017 - Present (8 years 5 months)

Contributed to web applications across e-commerce, healthcare, and real estate industries, modernizing user experience through a new design system using React, Typescript, Node.js, and Python. Enhanced website UI/UX by implementing updated design elements and accessibility features, leading to improved user engagement and site navigation. Supported front-end and back-end development by creating re