Position: Backend engineer
Category: PHP
English level: upper
Years of experience: 8

Designed e-commerce platform and development processes
(git-flow, CI/CD, testing). I was responsible for the development process, system architecture, and code quality.
We made a good flexible system based on SOA. The project in the support stage now and I'm ready for new challenges
Traffic delivery system (CPA network). I was responsible for backend API, design and development of new features, refactoring, and optimization for highload. Designed and developed new statistics services (based on a mathematical formula) which helped the company to increase conversion rate x3
Tech stack: PHP (yii2), MySQL, redis, python, nodejs, elasticsearch, mongodb.

Designed E-commerce healthcare platform from scratch. I was working on this project as a technical lead/architect
Designed a completely new system based on SOA to speed up the platform, remove legacy monolith, and make it more flexible for new features and business requirements.

I was responsible for system architecture, development workflow (code review, testing, CI/CD), and security.

Tech stack: Symfony 5, postgres, elasticsearch, redis, mongodb, rabbitmq, nodejs, python

Highload messenger backend and infrastructure. I’ve designed microservice architecture. All services were written on NodeJS also I was responsible for AWS infrastructure, scalability, fault tolerance, CI/CD automation.
Tech stack: PHP, Nodejs, MySQL (AWS aurora), Redis, go, WebSockets, firebase. AWS infrastructure: EC2, RDS, ELB, Route53, S3, auto scaling.

Crypto payment gateway. I built a payment gateway for processing anonymous transactions in crypto (self-hosted server). Integrated several blockchains.
Tech stack: Nodejs, typescript, PostgreSQL, web3.js

Big data aggregator:
Distributed databases and API for collecting, processing, and sharing a large amount of data collected from open sources.
Tech stack: Nodejs, VueJS, Postgresql, Cloud API (DigitalOcean, GCP, AWS), terraform, ansible, github actions, kubernetes 

Microcontrollers management cloud service:
Full stack solution for management set of microcontrollers from cloud server including controller commands via MQTT, monitoring controllers state, collecting data, administration, customer portal.
Tech stack: Nodejs (Express, sequelize.js), MySQL, Docker, Bitbucket CI, eclipse Mosquitto (MQTT server), websockets, VueJS
As a backend engineer I would like to work with a team of skilled developers and engineers who can help me develop and maintain robust, scalable backend systems capable of handling high volumes of traffic and data. Also, I would like to have the freedom to explore new technologies and approaches to development and be encouraged to continuously improve my skills and knowledge. It would be ideal to have access to state-of-the-art tools and resources that will help me to be more efficient and effective in my work.

Collaboration with other teams and stakeholders across the organization is essential for me to develop innovative software solutions that meet business needs and drive growth. I would like to take on new challenges and responsibilities.