A web platform for a large American global investment company

Responsibilities:
- Full stack and Cloud solutions involving creation/support of complex FinTech systems in a serverless architecture backed by AWS
- Development and improvement of legacy Angular and new React.js applications in scope of micro-frontend architecture
- Development and improvement of GitHub Actions shared workflows across large quantity of supported repositories within micro-frontend and micros-services architecture
- WIP

Domain: finance

Technologies: React.js, TypeScript, Node.js, AWS, Terraform, GitHub Actions

A web platform for a large US video game and software developer and publisher

Responsibilities:
- Full stack and Platform solutions involving creation/support of complex Consent Management systems in a microservice architecture backed by Kubernetes with a close to 1 million MAU
- x5 times improvement of developer's onboarding time and delivery performance based on Plandek metrics by authoring a CLI tool in Go to automate company's internal technical administration and management
- Responsible for one of the main Consent Management solutions involving Passport/ID scanning
- x2.5 times Lead Time increased Lead Time based on Plandek metrics by introducing Terraform Workspaces and Modules as a replacement for legacy Python-based generation of Terraform code
- Improved CI/CD process time by refactoring all the integration tests in several microservices by applying ES6+ features as well as KISS, YAGNI, DRY, SOLID
- Knowledge transfers of JS/Go, Node.js and AWS concepts for colleagues

Domain: identity & consent management

Technologies: TypeScript, Node.js, Go, Bash, AWS, Docker, Kubernetes, Terraform, CircleCI, Datadog, Pingdom

Order Management System for the largest automotive services organisation

Responsibilities:
- Backend solutions involving creating complex AWS infrastructure in a microservice architecture and integrating it with a number of third-party tools and a BFF service to deliver the complete solution to the client
- Created an automated Feature Toggle solution integrated with Optimizely for custom A/B testing and Dark Launches in project's internal systems
- Design and implementation of a complex serverless Order Management System with Commercetools integration at the core of the entire platform from scratch
- Design and implementation of a multi region setup in AWS via Route53 with Active-Passive failover
- Architectural design and implementation of the backend infrastructure with Observability best practices in mind

Domain: e-commerce

Technologies: TypeScript, Node.js, AWS, Serverless Framework, AWS VPC, AWS Route53, Optimizely, Commercetools, New Relic

Innovative news platform start-up that provides an unopinionated information sharing experience in a close to Youtube.com format

Responsibilities:
- Full stack solutions involving creating AWS infrastructure on the backend, creating a state-of-the-art React.js & TypeScript components on the frontend and integrating them together to deliver the complete solution to the client
- Introduced an improved version of State Management System using Rx.js and API Integration system with Axios
- Drastically improved the overall Code Quality and Technical Debt by set up a Code Review process and implemented Code Style & Conventions on the project
- Architectural design and implementation of the backend infrastructure alongside with the project's Solution Architect

Domain: news & media

Technologies: React.js, Rx.js, Typescript, Node.js, AWS, AWS CloudFormation & SAM, Amazon Aurora

As a software developer at EPAM Systems, I do work both related to Front-End (React.js, Vue.js) and Back-End (Node.js).
As a Front-End developer on my current project, I'm responsible for creating and maintaining a huge library of React components, utilising Redux, Axios, Storybook and Jest along the development process.
As a Back-End developer for the same project, I'm responsible for creating, maintaining all the Node.js (Koa framework) based endpoints that our microsevice architecture uses, as well as integrating them with client-side code for successful communication with a third-party system.
As part of my direct responsibilities as a key developer on the current project, I write Swagger and Confluence documentation for both of the code bases and communicate with clients and remote teams.