James Persson

About

Solution-oriented and problem solver with 8+ years of hands-on experience building and maintaining software and software architecture. Highly skilled in communication, collaboration, and technical documentation.Proficient in developing Full stack & Dapps using modern languages and frameworks like React, Vue, Node and Solidity.

Experience

• Sr Full Stack Web3 Developer · 3Box11-01-2020 – 11-01-2022

  Designed and implemented a microservices-based infrastructure with Node.js and GraphQL and was involved in developing mobile applications with React Native, React, TypeScript, and React Query. Architected and developed complex dApps(NFT, DEX) have more than 100000 users using TypeScript, React.js, Node.js and Web3.js. Designed and optimized database schemas, implemented data models, and ensured efficient data retrieval and storage mechanisms using relational database and NoSQL databases improving scalability, performance, and overall system stability. Developed responsive user interfaces and interactive components using React, leveraging functional and class components, state management with hooks and Redux, routing with React Router, and integrating with RESTful APIs, to deliver performant and maintainable web applications with seamless user experiences. Developed RESTful APIs and implemented authentication and authorization mechanisms using JSON Web Tokens (JWT) to ensure secure communication between the front-end and back-end components. Implemented and managed a robust CI/CD pipeline using tools like Jenkins, Git, Docker, and AWS, enabling seamless integration, automated testing, and continuous deployment of software applications across multiple environments, resulting in improved productivity, reduced manual effort, and faster time-to-market. Performed comprehensive code reviews for both front-end and back-end components, ensuring adherence to best practices, coding standards, and architectural guidelines, while providing constructive feedback and suggestions for optimization, maintainability, and improved performance.

• Full Stack Web3 Developer · JSE06-01-2018 – 08-01-2020

  Leveraged serverless architecture using AWS Lambda to design and implement highly scalable and cost-effective solutions. By utilizing event-driven functions, achieved seamless integration with other AWS services, such as Amazon API Gateway and DynamoDB, resulting in efficient data processing and reduced operational overhead. Participated in a fintech project, I spearheaded the design and implementation of a comprehensive financial management system, leveraging technologies like Expess.js, React, and MySQL to deliver a secure and scalable platform for handling complex financial transactions and managing user accounts. Participated in several projects utilizing MERN, MEAN, MEVN, PHP and brought remarkable growth in each project. Utilized React, Redux, and React Query to build a high-performing and responsive web application that featured state management, data fetching, and seamless user interactions, ensuring an enhanced user experience and efficient handling of complex data flows. Collaborated closely with cross-functional teams comprising designers, product managers, and backend developers to implement agile development methodologies, ensuring smooth communication, efficient workflow, and successful delivery of high-quality software solutions. Utilized Angular and NGRX extensively to implement reactive state management, enabling efficient data flow and predictable application behavior.

• Full Stack Developer · Flowplayer08-01-2016 – 03-01-2018

  Designed and developed or rebuilt 8+ websites utilizing JavaScript, TypeScript, ReactJS, VueJS, and NodeJS, Laravel. Ensure applications security and ability to interact with multiple APIs and databases. Used TDD(Test Driven Development) to improve software quality.

• Frontend Developer · Eferio03-01-2014 – 06-01-2016

  Collaborated with the UX/UI design teams to improve the website and applications, increasing conversion rates by 30%. Built User-friendly interface and reusable code template using React. Designed, coded, maintained, tested, implemented, and validated 10+ web applications.

Education

• Mid Sweden UniversityBachelor's degree, Computer Science

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