Simon Muravev

• Increased application speed by 5% and boosted user satisfaction by 15% through a user-centric refactoring of storefront app. • Improved new customers launch routine by 20% and reduced human-related issues by 80% by leading the development of a module federation web application using React.js and webpack, Vite. • Accelerated project delivery and reduced operational costs by streamlining CI/CD workflows and improvements in team communication. • Directed and scaled the frontend platform team, acting as the key interface between business stakeholders and engineering, driving alignment across product vision, technical roadmap, and delivery milestones. • Delivered 90%+ of initiatives without formal business specifications, leveraging proactive problem- solving and customer-centric development, resulting in measurable increases in user satisfaction and engagement. • Optimized and maintained end-to-end frontend platform performance by implementing advanced monitoring, automated testing, and efficient development workflows, reducing feature delivery time and production incidents.

Contributed to the development of an AI-based system that helps industry leaders maintain code quality and eliminate bugs and security vulnerabilities in device supply chains. • Secured $9.8M in venture funding by leading the development of a key product that demonstrated strong potential to investors • Led the front-end development of the product, including a strategic website redesign that improved application speed by 60% and boosted user satisfaction by 90%. • Guided the development of a responsive web application using React.js and Astro, improving customer satisfaction by 20% and reducing page rendering time by 50%. • Collaborated closely with backend teams to ensure seamless integration and stable application performance across devices. • Implemented Agile and Kanban methodologies to streamline development workflows, enhancing team communication and reducing operational costs. • Drove key architectural changes, ensuring adaptability and maintaining team morale in a dynamic, fast-paced environment.

Developed a complex financial analysis solution for a top national bank, designed to streamline data processing and improve real-time decision-making. • Led the development of a high-performance user interface, connecting a large bank's data lake to financial specialists through a fast, reliable, and flexible frontend. • Optimized loan interest calculations and financial analytics, improving data integration and decision-making speed. • Architected the frontend solution using the latest React (Hooks), Redux, and TypeScript, focusing on performance, scalability, and maintainability. • Collaborated on backend integration using REST APIs, with Open API specification and Swagger for seamless communication with the backend. • Introduced SOLID, DRY, and KISS principles in architectural decisions, ensuring clean and maintainable code. • Managed CI/CD pipelines using Jenkins in Docker and Kubernetes, improving deployment times and ensuring robust code quality with SonarQube. • Focused on cross-browser compatibility (Safari, IE11) and accessibility (ARIA roles) for an inclusive user experience. • Participated in Agile/Scrum sprint planning and task management through Jira, ensuring smooth progress in a dynamic team environment. • Conducted code reviews to maintain high coding standards and facilitated documentation using Confluence and Swagger.

Led the development of a complex internal B2B platform, akin to AWS, featuring multiple pipelines to enhance scalability and efficiency for internal operations. • Developed a high-performance JAMstack platform with server-side rendering (SSR) using Gatsby, React, and GraphQL, improving site performance by 40% and reducing load times by 30%. • Created a custom CMS for content management using Angular 10, RxJS, TypeScript, and Node.js (Fastify), streamlining backend integration and cutting customer time by 20%. • Enhanced user retention by 50% through the implementation of robust PWA features, including offline capabilities and service workers. • Led frontend-backend integration efforts using REST APIs and Open API specification, ensuring seamless data exchange and scalable architecture. • Implemented CI/CD pipelines using GitLab CI/CD, Jenkins, Docker, and Kubernetes to automate deployments and improve development workflows. • Ensured cross-browser compatibility and compliance with accessibility standards (a11y, ARIA roles), delivering a smooth user experience across all major browsers. • Led the company's Frontend developer community, organizing meetups, contributing to R&D, and developing a competency matrix for frontend engineers.

Highly loaded local online store (up to a thousand orders per sec • In-house servers • Legacy code, critical problems in the interoperability architecture • Mobile applications for modern platforms Duties and key competencies: • Ensuring system fault tolerance (uptime 97% during my work) • Ensuring the security of all components (under my leadership, outdated encryption mechanisms were replaced with modern ones, SSL and HTTPS access was configured) • Optimization of highload using load balancing, caching, and optimization of complex queries to the MySQL • Implementation of complex interactive elements using Javascript (ES5 / ES6 / ES2017 with Babel), CSS (LESS, SASS), cross-browser and responsive layout (using the webpack and gulp builders), SVG and HTML5. • Application architecture development: PHP Backend parts and client JS (Vue, GraphQL) for processing and displaying customer orders • Design, implementation, documentation, testing GraphQL API: strongly-typed API with built-in protection against unauthorized access. It is written on the Laravel, runs inside the Docker container network, designed by me. He simplified the development of mobile applications and accelerated the work with the service • Implmentation and operation of the CI / CD system: from a control system based on Git (Github Flow) to the secure possibility of testing functions in production. • Writing tests, profiling, and optimizing code for performance and memory. • Implementation of a clear system of software product documentation Achievements: • For six months of work in the company, I have reduced the need for constant monitoring of the site's performance and implemented convenient management of the functioning status • Saved the company's expenses (I used only free software, Implemented a logistics system, which accelerated order processing by 37% and reduced the company's fixed costs) • The employees raised by me became key employees in the development department

👨🏻💻 Developed CRM for this business PHP 5.3, PostgreSQL, Bootstrap, JQuery, HTML and CSS were used to implement the project. Since this was my first serious experience in developing WEB applications, I did not make a choice in favor of using ready-made development platforms (Yii2, Symfony, Laravel) - I wanted to deeply study the principles of designing and developing sites, as well as understand the built-in PHP tools. From a technical point of view, the main difficulties in my first project were: • It was required to ensure maximum performance of the server-side when working on free hosting - thanks to this I am well versed in data caching, asynchronous processing, and delivery of data to the user • It was required to provide a convenient data storage structure to minimize the cost of data storage and simplify the calculation of analytics - I gained the skills to develop normalized relationships between tables in the database and understand the acceptable cases of neglect of the database architecture. • Requirements for performance both on computers and on phones - I deeply understood adaptability and cross-browser compatibility learned how to use CSS Media Query and understood the reasons and methods of normalize.css development The project was successfully implemented, thanks to the development, most of the routine work was automated. Here are the main features that I have implemented: • Quickly add and record all interactions with customers and employees • Convenient control of the work schedule and employment of employees