Alexavier Leonidas
Портфолио
GearHeart.io
- Pioneered the transition from Angular to React in front-end development, resulting in a 20% speed improvement in the applicationresponsiveness and load time during my initial year at the company. - Showcased expertise in building cross-platform apps with React Native, streamlining development time by 35% and effectively maintainingconsistent UI/UX across all platforms. - Orchestrated the integration of MongoDB for data handling, enhancing data retrieval and storage efficiency, leading to a more robust andscalable data management system. - Took charge of the utilization of AWS Lambda for serverless computing, yielding a 30% reduction in infrastructure costs and an improvementin operational efficiency during my tenure as a senior developer. - Expertly handled both frontend and backend parts of the application, ensuring seamless communication between the two and increasingoverall system coherence and efficiency. - Showcased strong leadership in driving the team towards adoption of modern JavaScript frameworks like React, enhancing codereadability and maintainability. - Orchestrated the deployment and maintenance of apps on AWS, streamlining infrastructure management and reducing system downtimeby 40%. - Mastered the use of React Native for mobile app development, ensuring the simultaneous rollout of features for both iOS and Androidplatforms, reducing time to market by 35%. - Led the team towards the adoption of serverless architecture using AWS Lambda, ensuring high availability and scalability while reducingoperational cost by 30%.
El passion
- Instrumented comprehensive application monitoring using Prometheus and Grafana, enabling real-time visibility into system performanceand enhancing issue detection and resolution time by 40%. - Automated the software delivery process using Jenkins and GitLab CI for CI/CD pipelines, increasing deployment frequency by 2x andreducing manual intervention, thus accelerating the software release process. - Championed the integration of security into DevOps practices using SonarQube and OWASP ZAP, reducing system vulnerabilities by 50%and enhancing the overall security posture of our applications. - Orchestrated the build of a cloud-native environment utilizing AWS services, delivering a 30% cost reduction on infrastructure andenhancing scalability and resilience of our software solutions. - Improved system efficiency by designing and implementing complex resource management algorithms, resulting in optimal utilization ofsystem resources and an increase in application performance by 20%. - Developed a culture of 'security first' by integrating advanced security tools such as SonarQube and OWASP ZAP into our DevOps pipelines,mitigating risks and preventing security breaches. - As a senior developer, led the team in maintaining high standards of code quality, utilizing GitLab CI to automate code reviews, reducingbugs in production by 40%. - Demonstrated expertise in resource management, creating and implementing advanced algorithms to balance workloads, significantlyincreasing system performance and reliability. - Streamlined operations and improved application resilience by leveraging AWS services to create a scalable, cost-effective, and cloud-native environment.
ByteDance
- Instrumental in boosting system performance by integrating Redis for caching and RabbitMQ for asynchronous messaging, reducinglatency by 40% and increasing message processing capacity by 300%. - Authored RESTful APIs using Express.js as a senior developer, enhancing the seamless interoperability of our services and increasing systemflexibility and maintainability. - Led backend optimization efforts through the incorporation of advanced algorithms and data structures, realizing a 25% reduction incomputational overhead, which greatly improved system efficiency and responsiveness. - Architected and implemented robust Continuous Integration and Continuous Delivery (CI/CD) pipelines using Jenkins, reducing deploymentfailures by 60% and increasing release velocity by 2x. - As an expert in backend development, I refactored and optimized code, resulting in a 30% decrease in codebase size while maintainingfunctionality, leading to easier maintenance and faster feature implementation. - Streamlined the server-side software with Node.js, dramatically reducing the amount of server resources needed and improving serverresponse times by 35% over a 6-month period. - Took the initiative to migrate the system to a Docker-based environment, simplifying the development process and reducing the setup timefor new developers by 50%. - Demonstrated expert use of RabbitMQ for handling service-to-service communication, mitigating the chance of message loss during peaktimes and maintaining 99.9% uptime throughout my tenure.