Vatler Lett

April 2020 - August 2022

Senior MERN Stack Engineer  Keepler Germany

Responsibilities:
• Led the development and maintenance of multiple web applications using the MERN stack (MongoDB, Express.js, React.js and Node.js)
• Collaborated with stakeholders, product owners and cross-functional teams to understand requirements and develop solutions that met the needs of the business and customers.
• Built and optimized efficient, scalable and secure web applications utilizing the latest front-end technologies such as React Hooks, Context API and Next.js.
• Developed RESTful APIs, and implemented GraphQL to improve the performance and scalability of the web applications.
• Managed the deployment of web applications to cloud-based platforms like AWS, Heroku and GCP.
• Developed and deployed microservices to optimize and enhance the performance of the web applications.
• Mentored and trained junior developers on best practices and technologies used in the team.
• Utilized Git for version control and collaborated with other developers on code reviews and merge requests.
• Participated in sprint planning and retrospectives to improve team workflows and development processes.
Responsible for maintaining and updating CI/CD pipelines and automated testing.
• Led and implement security best practices to ensure compliance with industry standards and regulations.

July 2018 - March 2020

Full Stack Developer  Freelancer, Upwork, Fiverr

Responsibilities:
• Utilized React, Angular and Vue for the front-end development, Node.js Framework such as Express for the back-end, and MongoDB for the database
• Built RESTful APIs for data manipulation and integration with third-party services
• Developed a full-stack web application using different types of stack for a small local business
• Implemented user authentication and authorization using JWT
• Built a responsive user interface with Material-UI and deployed it on AWS, Heroku and Netlify
• Worked with team members to implement new features and improve application performance
• Made use of Git and Github for version control

January 2017 - May 2018

Junior MERN Stack Developer  Emerton Japan

Responsibilities:
• Participated in the full software development life cycle of web applications using the MERN stack (MongoDB, Express.js, React.js and Node.js).
• Designed and developed front-end user interfaces using React.js and Redux.
• Developed and implemented back-end RESTful API's using Express.js and Node.js.
• Integrated front-end and back-end systems using Axios and Mongoose.
• Collaborated with designers, developers and other cross-functional teams to build and maintain the company's web applications.
• Utilized Git for version control and collaborated with other developers on code reviews and merge requests.
• Participated in sprint planning and retrospectives to improve team workflows and development processes.
• Developed and optimized the performance of web applications using various development and debugging tools.
• Participated in code refactoring and maintenance activities to improve application scalability and security.