Daniel

Front End Developer

( 2017 - 2019 )

-Achieved a substantial 40% growth in sales through the implementation of a scalable design.
-Crafted SEO strategies to achieve prominent rankings across top browser platforms.
-Developed an app that monitors the trading activity of automated trading systems.
-Integrated WebSockets data sources with a React UI layer.
-Introduced Scrum processes such as sprints, planning, retros, and demos.
-Developed new features using TypeScript, Next.js, React, and Redux.
-Maintained the existing code and deployed new features using Vercel.
-Tested front-end features and UI/UX using Cypress.

Back End Developer

(2019)

-Developed back-end microservices in Node.js and TypeScript. Integrated them with AWS products (SQS, SMS, ES, and so on).
-Prepared MySQL database architecture and migrations.
-Migrated the database from Firebase with NoSQL to SQL with PostgreSQL, reducing infrastructure costs and running real-time BI.
-Imported numerous external data in the core database, some coming from structured sources and others from free-form sources.
-Developed tools to support the data-management team activity by providing insights about data issues and business-related inconsistencies.

Full Stack Developer

( 2019 - 2023 )

-Implemented new features for a veterinarian platform that make managing animal documentation easier using React and TypeScript.
-Conducted small improvements and maintenance for a React Native application—iOS and Android versions—for the veterinary platform clients.
- Improved and maintained a PDF documents generator based on React PDF library that allows veterinarians to print full animal health documentation.
- Developed an app that allows users to speak to an AI avatar and, based on the scenario, produces feedback about their communication skills.
- Prepared an analytics page with user record statistics in the app using AG Grid and AG Charts libraries.
- Constructed a library that enables connections to back-end services and React applications via WebSockets.

Senior Full Stack Developer

( 2023 - Present )

-Built multiple web apps using combinations of React, React Native, Next.js, the MERN stack, and several different APIs.
-Fixed issues with the legacy application not supporting modern browsers while maintaining backward compatibility.
- Allowed the client's business to operate uninterrupted by the rapidly changing technology and user habits.
- Developed and maintained the internal portal for financial management for the client.
- Collaborated with multiple stakeholders with various requirements to develop the best possible software solution.
- Adapted the back end to switch from MySQL to MongoDB, enhancing the scalability and performance of the database system better to handle the increasing volume of user data and transactions.