• Addressed failing tests to ensure code reliability, instituted a comprehensive code review process for junior developers, and established guidelines and style guides for a cohesive and high-quality codebase.• Enhanced data security with scheduled Firestore backups, migrated to TypeScript for improved code maintainability and enabled Over-The-Air (OTA) updates for Expo projects.• Upgraded the development toolchain with Husky pre-commit hooks, linting, and automated CI/CD. Migrated the entire project to TypeScript.

• Overhauled the development toolchain of the company, bringing in features such as TypeScript, ES6, unit testing, bundling, linting, and automated CI/CD• Spearheaded the development of high-performance webhooks, integrating them with WebSockets, resulting in a 30% faster message delivery.• Automated cron jobs reduced manual data cleanups by 90% and improved PostgreSQL query execution performance by 40% by restructuring database schema.• Utilized git submodules to streamline the combined repository, cutting deployment time in half, enhancing code maintainability, and facilitating a more efficient development workflow.• Led a team of software engineers in developing backend infrastructure, successfully delivering functional web applications that met or exceeded client requirements and expectations.

• Collaborated on the backend system for an IoT-capable mobile app, optimizing express middlewares for a 30% faster data retrieval.• Implemented caching mechanisms through Redis that reduced server response times, leading to a 15% overall app performance improvement.• Introduced TypeScript and used enums for better type checking, enhanced code consistency by utilizing shared types between the frontend and backend.• Implemented a database sharding strategy to horizontally scale and distribute data, resulting in a significant improvement in system scalability and performance. Integrated and worked with PostGIS to manage and query geolocation data.

• Designed and implemented a high-impact software solution to efficiently analyze an electronic board game and translate over 50 game piece positions into data tables and functions accessible via an API.• Worked directly with the libraries analyzing the game and reading data from the electronic board, implementing optimizations that resulted in a 30% improvement in-game data processing speed, facilitating seamless interaction between developers and the board game hardware.• Maintained a near-zero tech debt throughout the project, ensuring long-term sustainability and ease of maintenance.

• Developed a cross-platform mobile app seamlessly interacting with Twitter API through Firebase Cloud Functions, enhancing user experience by significantly reducing the build size to approximately 25 MBs.• Implemented robust data caching mechanisms, reducing data transfer and eliminating unnecessary API calls, resulting in a substantial 20% decrease in mobile data usage for app users.• Leveraged Webflow SDK to manage user website metadata in the app, skillfully utilized JavaScript libraries for Mapbox API to provide users with advanced geolocation functionalities and features.