Zhenyu Li

Zhenyu Li

$40/hr
Senior Software Engineer
Reply rate:
100.0%
Availability:
Full-time (40 hrs/wk)
Age:
34 years old
Location:
Yanji, Jilin, China
Experience:
10 years
Zhenyu Li - |- Summary  Highly skilled and motivated Senior Fullstack Engineer with over 9+ years of experience in designing and developing robust web applications.  Proficient in Python/Django, PHP, Laravel, React, Angular, JavaScript, and TypeScript, seeking challenging opportunities to utilize my expertise in creating innovative solutions and driving technological advancements. Skills & Abilities  Programming Languages: Python, PHP, JavaScript, Node.js  Web Frameworks: Django, React, Angular, Laravel, Wordpress  Frontend Technologies: HTML5, CSS3, Sass/Scss, Bootstrap, TailswindCss, ChakraUI, MaterialUI, Antd  Version Control: Git, SVN  RESTful APIs and Web Services  Agile/Scrum Methodologies  Test-Driven Development (TDD) Cloud  Platforms: AWS, DigitalOcean, Azure, Clover, Google Cloud  Compute: EC2, Lambda, Virtual Machine  Microservices Architecture  DevOps Tools: Docker, Kubernetes, Jenkins, Ansible, Terraform  Storage: S3, Backup, Blob, Firebase, Dropbox  Databases: Redis, Postgres, Sqlite, Mongo  Continuous Integration/Continuous Deployment (CI/CD) Operations  Fields: HealthCare, SaSS  Business: Trello, Asana, Jira, Photoshop  Analytics: Tableau, Glue, Spark, D3.JS  Standards: REST, SOAP, TCP/IP, XML, YAML, CONF, GIT, OAUTH, API, JSON, EDI Experience SENIOR FULLSTACK ENGINEER (DJANGO) | DEMANDIQ | AUGUST 2020 – OCOTOBER 2022  Spearheaded the development of a mission-critical web application using Django and React, resulting in a 30% increase in user engagement.  Collaborated with the product team to design and implement RESTful APIs, improving application performance and user experience.  Successfully integrated third-party APIs and services, such as payment gateways and cloud platforms, to enhance application capabilities and data processing.  Mentored and coached junior engineers, providing guidance on best practices, design patterns, and code reviews to foster a culture of continuous improvement within the team.  Worked closely with DevOps to optimize deployment processes, implement CI/CD pipelines, and automate workflows, resulting in a 25% reduction in deployment time.  Investigated and resolved complex technical issues, utilizing debugging and profiling tools to improve performance and enhance application stability. SENIOR FULLSTACK ENGINEER | CLOUDCONTROL | JANUARY 2019 – MAY 2020  Designed and implemented a scalable backend architecture to support the dashboard's functionalities, ensuring optimal performance even during peak usage periods.  Collaborated closely with frontend developers and product managers to define API contracts and data schemas, enabling smooth communication between the frontend and backend systems.  Utilized Python and Django to build robust APIs, enabling users to interact with various modules of the dashboard efficiently.  Integrated the dashboard with the underlying cloud infrastructure (AWS/Azure) to fetch and process real-time data from disparate sources, providing users with up-todate analytics and business metrics.  Implemented user authentication and access control mechanisms, ensuring secure data access for different user roles and maintaining compliance with security standards.  Developed custom data visualizations using charting libraries (e.g., D3.js) to present complex data in an intuitive and actionable manner.  Optimized database queries and employed caching strategies to reduce response times, resulting in a 30% improvement in dashboard loading speed.  Actively participated in code reviews and conducted rigorous testing (unit, integration, and performance) to maintain code quality and minimize potential issues.  Collaborated with the DevOps team to implement continuous integration and continuous deployment (CI/CD) pipelines, enabling seamless updates to the dashboard with minimal downtime.  Mentored junior developers, sharing best practices and fostering a collaborative environment that encouraged innovation and skill development. 2 FULLSTACK ENGINEER | SQUIBLER.IO | APRIL 2017 – NOVEMBER 2018  Developed and maintained RESTful APIs and backend services for a data analytics platform using Django, enabling real-time data processing and advanced data visualization capabilities.  Utilized Flask to create microservices that facilitated efficient data processing and improved overall system performance.  Implemented responsive and intuitive UI/UX using Angular, resulting in improved customer satisfaction and reduced bounce rate.  Collaborated with cross-functional teams, including data scientists, to integrate machine learning models and algorithms into backend processes.  Implemented caching mechanisms and optimized database queries, resulting in a 20% reduction in data retrieval time and improved application responsiveness.  Worked closely with the QA team to identify and resolve software defects, ensuring a seamless user experience.  Actively participated in Agile development methodologies, attending sprint planning, stand-ups, and retrospectives, ensuring timely delivery of features and bug fixes.  Contributed to codebase refactoring and improvement initiatives, enhancing code readability, maintainability, and test coverage. JUNIOR FULLSTACK ENGINEER | SELFDECODE | AUGUST 2015 – MARCH 2017  Developed and maintained backend functionalities for a data-driven web application using Python and Django, ensuring seamless communication with the frontend and providing a smooth user experience.  Collaborated with a cross-functional team to define technical requirements and participated actively in Agile development methodologies, including sprint planning, stand-ups, and retrospectives.  Implemented RESTful APIs for efficient data retrieval and processing, contributing to the application's responsiveness and performance.  Utilized Django ORM to manage database operations, including model creation, data retrieval, and updates, ensuring data integrity and consistency.  Integrated third-party APIs for payment processing, shipping, and social media platforms, expanding the platform's functionality.  Conducted unit testing and participated in code reviews to maintain code quality and adherence to best practices.  Implemented A/B testing and performance optimization techniques, resulting in a 20% increase in conversion rates.  Assisted in integrating third-party APIs and services, enhancing application functionalities and expanding its capabilities.  Worked on frontend tasks when needed, providing valuable contributions and demonstrating a willingness to collaborate across teams.  Proactively engaged in learning opportunities to improve skills in Python, Django, and related technologies, staying abreast of the latest trends and advancements in backend development. 3 Education BS IN COMPUTER SCIENCE | SHANGHAI JIAO TONG UNIVERSITY 4 2014
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