J

James Whalen

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Chevy Chase, Maryland, United States
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Résumé

Jobs verified_user 0% verified
  • F
    Senior Full Stack Engineer & Tech Lead
    Fortunes Tech
    May 2021 - Current (5 years)
    Architected and developed scalable web applications using React.js and Node.js, Nest.js, delivering intuitive user interfaces and robust • • • backend services that improved user engagement by 20%. Integrated AI/ML models with Python to enhance application functionality, enabling personalized recommendations that boosted user retention by 15%. Designed and optimized RESTful APIs for seamless third-party integrations, reducing data retrieval times by 25% and ensuring high system reliability. Led a team of 7 developers, conducting code reviews and mentoring junior engineers, resulting in a 30% improvement in code quality and adherence to best practices. Managed AWS-based cloud infrastructure, implementing CI/CD pipelines that streamlined d
  • J
    Senior Backend Engineer
    J3st Gaming
    Oct 2019 - Apr 2021 (1 year 7 months)
    Built a web application with the team from scratch for streamers and viewers to manage challenges and donations. • • • Enhanced the Nest.js backend service architecture by updating RESTful APIs to GraphQL and integrating AWS SQS, managing application performance and improving data handling. Implemented Stripe API integration with payment flow, trial periods, monthly and yearly subscriptions, and withdrawals. Worked with a comprehensive tech stacks, including PostgreSQL, GraphQL, Apollo Server/Client, TypeScript, TypeORM, tRPC and microservices architecture. Led the creation of a Web3-based sports betting pages integrating blockchain technologies, using Ethereum smart contract, Solidity, and Web3.js for secure transactions and betting log
  • C
    Software Engineer
    Cengage Group
    May 2017 - Oct 2019 (2 years 6 months)
    E-Learning Providers Collaborated with a cross-functional team to design and develop an education website and mobile application from scratch, utilizing a tech • • stack that includes Python, Django, PostgreSQL, SQLAlchemy, React.js, Vue.js and React Native and deployed the entire solution on AWS. Designed and implemented RESTful APIs using Python, Django, and Django Rest Framework, ensuring robust and scalable back-end services, utilizing SQLAlchemy for efficient ORM (Object-Relational Mapping) and database interactions with PostgreSQL. Designed a scalable micro-service architecture for front-end, ensured seamless RESTful API communication, utilized Docker containers for deployment, used Nginx for routing and load balancing, and set up C
  • Redox
    Full Stack Engineer
    Redox
    Oct 2015 - May 2017 (1 year 8 months)
    Developed and maintained a health web application, migrating the existing web application from the LAMP stack app to MERN stack app. • • • Translated redesigned Figma designs to pixel-perfect and fully responsive web application using JavaScript, React, SASS and LESS. Rebuilt backend services in Node.js using Express.js, creating RESTful APIs to handle various insurance operations such as policy management, claims processing, and user management. Migrated data from MySQL to MongoDB, optimizing data models and queries to take full advantage of MongoDB's performance capabilities. Implemented secure authentication flow using JWT (JSON Web Tokens) to ensure safe and efficient user authentication and authorization. Integrated third-party serv
Education verified_user 0% verified
  • GEORGE MASON UNIVERSITY
    M.S. in Computer Science
    GEORGE MASON UNIVERSITY
    Apr 2014 - Oct 2015 (1 year 7 months)
  • GEORGE MASON UNIVERSITY
    B.S. in
    GEORGE MASON UNIVERSITY
    Apr 2011 - Mar 2014 (3 years)