Elkin Mejia Full-Stack Developer

Software Developer

Globant

Jan 2025 - Mar 2025 (3 months)

• Contributed as a Full Stack Developer, working across React (frontend) and Node.js (backend) within a construction services platform. • Developed dynamic and reusable React components to support business workflows and pricing visualization. • Implemented backend services in Node.js to handle pricing calculations, service variations, and business rules related to construction offerings. • Designed and maintained RESTful APIs, ensuring reliability and scalability of backend services. • Authored and maintained API documentation using Swagger (OpenAPI), improving integration clarity between frontend and backend teams. • Collaborated with multidisciplinary teams to translate business requirements into technical solutions within tight timelines

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Fullstack Developer

TheSteps.io

Dec 2024 - Feb 2026 (1 year 3 months)

• Developing scalable full-stack solutions using Next.js and TypeScript for building modern, performant web applications. • Designing and consuming APIs using GraphQL, enabling efficient data fetching and flexible frontend integration. • Managing and querying relational data with PostgreSQL, ensuring data consistency and performance optimization. • Collaborating across teams to architect and implement end-to-end features that align with product goals. • Leveraging Microsoft Azure services to support cloud deployment, application scaling, and monitoring. • Writing clean, maintainable code with a focus on scalability, reusability, and developer experience

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Full-stack Developer

Banana Script

Jul 2023 - Oct 2024 (1 year 4 months)

• Built backend services using NestJS and Node.js, following a Serverless architecture with AWS Lambda, DynamoDB, SQS, Cognito, and CloudWatch. • Developed frontend components with React.js and TypeScript, managing state with Redux and React Context for scalable and maintainable UI. • Focused on performance optimization through memoization and code splitting, enhancing responsiveness and load times. • Implemented CI/CD pipelines using AWS CodePipeline to automate testing and deployment workflows. • Integrated APIs built with FastAPI in Python for connecting messaging platforms like WhatsApp and Telegram. • Gained introductory experience with Large Language Models (LLMs) and tools like LangChain for early-stage AI-based feature exploration.

Software Developer

RevStar

Nov 2022 - Jun 2023 (8 months)

• Developed backend services using NestJS and Node.js within a Serverless architecture powered by AWS Lambda. • Built and maintained frontend components using React.js, ensuring seamless integration with backend APIs. • Integrated core AWS services such as RDS and Cognito to enhance application security, authentication, and data management. • Collaborated on multiple client projects, delivering scalable and secure solutions through modern development practices. • Applied the Serverless Framework for efficient infrastructure deployment and automation. • Ensured code quality and maintainability through modular design and best practices in TypeScript and JavaScript.

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Fullstack Developer

Pakud

Nov 2021 - Nov 2022 (1 year 1 month)

• Developed and maintained backend services using Node.js and AWS Lambda in a Serverless architecture. • Performed data scraping with Python to collect and process business-critical information. • Integrated backend services with frontend interfaces using the Next.js framework for improved performance and SEO. • Led the migration from React.js to Next.js, significantly enhancing application speed, maintainability, and user experience. • Utilized AWS services including RDS, OpenSearch, and DynamoDB to build scalable data-driven features. • Supported the company’s B2B platform by connecting clients with product providers through optimized system architecture. • Applied modern JavaScript practices and cloud infrastructure skills to ensure effi

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Fullstack Developer

Enmify

Aug 2021 - Jun 2023 (1 year 11 months)

• Developed cross-platform mobile applications using React Native and built responsive web interfaces with Next.js. • Created backend services with Node.js and AWS Lambda in a Serverless architecture, ensuring scalability and low-latency performance. • Designed and managed backend data storage using NoSQL databases like MongoDB. • Integrated Epayco as a secure payment gateway, enabling seamless transaction processing across platforms. • Collaborated across teams to deliver end-to-end features, ensuring alignment between frontend and backend logic. • Utilized AWS services and JavaScript to implement efficient solutions that supported real-time application demands. • Maintained and enhanced mobile and web features for a smooth, consistent use

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Fullstack Developer

Pakud

Feb 2021 - Sep 2021 (8 months)

• Built and maintained web applications using React.js for the frontend and Node.js with AWS Lambda in a Serverless architecture for the backend. • Developed dynamic user interfaces with React.js, ensuring responsive design and a smooth user experience. • Designed and implemented backend services and RESTful APIs using JavaScript and Node.js. • Leveraged AWS services such as Lambda and API Gateway to create scalable, eventdriven applications. • Collaborated with cross-functional teams to deliver full-stack features from development to deployment. • Applied Serverless programming principles to reduce infrastructure complexity and improve deployment speed.

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Backend Developer

Pakud

Oct 2019 - Dec 2020 (1 year 3 months)

• Developed and maintained backend services using Node.js in a Serverless architecture with AWS Lambda. • Designed and deployed scalable APIs, focusing on modular code and efficient execution in cloud environments. • Utilized AWS services such as Lambda and API Gateway to handle business logic and routing. • Collaborated with the development team to optimize backend workflows using best practices in JavaScript. • Gained hands-on experience in Serverless programming, improving deployment speed and system reliability. • Contributed to the overall system stability by writing clean, well-documented, and testable code.

Elkin Mejia

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