Dmitry

Stored and controlled code, using Bitbucket, GitHub, and GitLab as sources for a distributed version control system.
Used CI/CD, pipelines, and Jenkins for deployment and release control.
Tracked and fixed bugs, using Monday, Jira, and Trello as reporting tools.
Implemented a cryptocurrency coin components-based wallet (coin actions), explorer (reviews read-only transactions, statistics,
and analytics), and swap (used for coin exchange from-to and to-from).
Implemented cryptocurrency coin exchange API integrations, usually with a specific API for a specific coin.
Integrated payment systems for banking, cards, and two-way binding coins and money transfers.

Delivered in-person training internally and for multiple external partners. Stayed up to date with company technologies and helped
internal and external team members be on the same page.
Developed solutions that enabled communications with dozens of companies through a personal messenger, training for dozens
of companies through a personal training portal (accounting and law), and hockey and football training for children and adults.
Designed and developed a highly loaded SPA/SaaS with a 100% responsive design for mobile, tablet, laptop, and desktop
devices and all browsers.
Stored and controlled code, using GitHub and GitLab as sources for a distributed version control system.
Set up automated unit and E2E tests (front end and back end) to ensure that all sections met requirements.
Tracked and fixed bugs, using Jira and Trello as reporting tools.
Built a TypeScript-based, 100% modular front-end structure based on a list of basic and complex components. Created a
Storybook of all reusable components with examples and conducted unit and E2E tests.
Built a 100% microservices architecture based on Node.js, Express.js, Molecular, Queues, and SQL and NoSQL databases. The
aim was to use any service as an isolated service for a specific need and one server with the flexibility to have N workers.
Implemented a load balancer for services and databases, allowing for as many customers as needed without horizontal and
vertical scaling problems.
Managed a team of 3-10 members, focusing on milestones, sprints, task preparation, timeline planning (using Gantt charts, Jira,
and Confluence), daily calls under custom Scrum with weekly demos, pull requests reviews, and code quality control.

Led planning and development of technology strategy, architecture, and functionality; UI/UX; and API integrations.
Served as a team leader and senior developer for a successful startup (from scratch), using Vue, React, Angular, Node.js,
TypeScript, and a 100% responsive UI/UX.
Stored and controlled code, using GitHub and GitLab as sources for a distributed version control system.
Set up automated unit and E2E tests (front end and back end), to ensure that sections met their requirements.
Tracked and fixed bugs, using Jira and Trello as reporting tools.
Conducted final technical interviews with successful candidates and stayed involved in hiring and firing employees.
Led technical and motivational calls with team members and performed code and quality reviews.
Communicated with clients for technical and strategic negotiations; prepared deadlines, milestones, and sprints; and structured
releases and demos

Developed dozens of websites and applications (sell, upsell, and resell) and performed hundreds of A/B tests, resulting in
thousands of sales and millions of dollars in income.
Developed eCommerce websites and components, using modern technologies for SPAs, including React, Redux, Vue, Vuex, and
AngularJS, and Angular.
Used highly loaded back-end technologies, including Node.js, Express.js, PHP 5, PHP 7, Laravel, and Lumen.
Managed deployments and release controls, using CI/CD, pipelines, and Jenkins.
Stored and controlled code using Bitbucket, GitHub, and GitLab as sources for a distributed version control system.
Set up automated unit and E2E tests (front end and back end) to ensure that sections met their requirements.
Tracked and fixed bugs, using Monday, Jira, and Trello as reporting tools

Set up and managed the AWS infrastructure. Developed multiple serverless web apps, using React/Angular/Vue, AWS API
Gateway, and AWS Lambda. Migrated legacy codebases to new, modern React/Angular/Vue applications.
Developed solutions that enabled communications with dozens of companies through a personal messenger, training for dozens
of companies through a personal training portal (accounting and law), and hockey and football training for children and adults.
Designed and developed a highly loaded SPA/SaaS with a 100% responsive design for mobile, tablet, laptop, and desktop
devices and all browsers.
Stored and controlled code using GitHub and GitLab as sources for a distributed version control system.
Set up automated unit and E2E tests (front end and back end) to ensure that sections met their requirements.
Tracked and fixed bugs, using Jira and Trello as reporting tools.

Worked on dozens of databases with hundreds of tables, millions of requests, and billions of rows, using microservices and load
balancer architecture, serving 10,000+ DAU and 300,000+ MAO.
Designed and developed highly loaded web, mobile, and desktop systems for collecting and analyzing statistics.
Stored and controlled code using GitHub and GitLab as sources for a distributed version control system.
Set up automated unit and E2E tests (front end and back end) to ensure that sections met their requirements.
Tracked and fixed bugs, using Jira and Trello as reporting tools.