Golang Developer

Jovo is a platform for selling digital assets on real marketplaces and simplifying the user experience for NFT games. - Shopify store integration - Implemented NFT purchases on OpenSea via Seaport - Integration with BNB and Solana blockchains - Automated financial report calculations based on data from various blockchains (purchase price, gas fees) and platform data (sales, marketplace commissions)

Development and maintenance of several projects: 2022 - 2023 Adult social network with content subscriptions and cryptocurrency payments. Tech stack: Golang, GraphQL, Postgres, Redis, Ethereum, Elasticsearch, Docker, K8s. - Implemented deposits and withdrawals of ERC-20 tokens (USDT, ETH). Introduced a staking-based referral program using the platform's native tokens. - Integrated Metamask for user authentication. - Developed a paid subscription mechanism. 2021 - 2022 Social network with Web3 (NFTs, cryptocurrency payments)*. Tech stack: PHP8, Golang, Node.js, GraphQL, Postgres, Kafka, Elasticsearch, Redis, Cosmos SDK, Docker, K8s. - Migrated code from PHP to Golang. - Implemented a WASM module for smart contracts into the company's own blockchain (Cosmos SDK-based). - Developed and integrated smart contracts (heavily modified ERC-1155, airdrop, multi-sender) using Rust: transaction execution and result processing within the platform. - Implemented cross-chain integration with XDB-Chain (DigitalBits) for transferring NFTs between blockchains. - Deployed a CDN solution with built-in image resizing and format conversion using AWS services. - Integrated Sentry and NewRelic for monitoring.

Developing an internal shifting platform. Mentoring middle and junior developers. Technologies used: - golang - php8, laravel - js, react - mysql - nginx - rest api - sentry - newrelic

Leading backend team (3 developers). Maintaining and developing backends for all mobile applications of company. Technologies used: - php7 - Postgres - RabbitMq - memcached - docker - AWS - git - nginx - kotlin on backend - golang

Leading 10+ team (backend, frontend, QA). Prepare development plans, building and optimizing working process. Technologies used: - php7 - golang - python - mariadb - mongodb - redis - git - nginx - Teamcity CI - docker for development and setting up stagings - Clickhouse - Apache Kafka

Technologies used: - php5, php7 - golang - mariadb galera cluster - mongodb - redis - git - nginx - Teamcity CI - docker for development and setting up stagings

Automation of processes for Department of Contextual advertising. Automation processes of generation advertising campaigns from client's feeds and their subsequent uploading to advertising systems (Google Adwords, Yandex Direct). Technologies used: - php5, Yii1 - mysql, mongodb - javascript, coffeescript, typescript, angular1 - git - nginx - Jenkins CI

Creation of websites using major CMS (Bitrix, Drupal, Wordpress) and maintaining existing. Implementation new products. Technologies used: - php5 - HTML, CSS, javascript, jquery - apache, nginx - svn - sphinxsearch

Developing of websites for events. Implementation of online platform for webinars and business education. Technologies used: - php5 - javascript, jquery, HTML, CSS - apache