Backend and Agentic Engineer building production services and AI agent systems on Node.js, NestJS and AWS. Design REST/GraphQL APIs, queues and event-driven integrations, deploy them to AWS (EC2, S3, Lambda, SQS, RDS, CloudFront) and keep them observable and fail-safe.
Build agentic solutions on top of LLMs with the Mastra framework (TypeScript agents, tools, workflows, memory and evals) and n8n: tool calling and MCP servers, RAG pipelines over vector stores, multi-step and human-in-the-loop agent workflows, plus prompt and cost optimization.
Also a result-oriented fullstack programmer in developing robust, fast and fail-safe web applications written on PHP, Javascript, TypeScript, MySQL. Can solve issues in MySQL and ElasticSearch performance, backend and frontend part like google page speed optimization. Have practice working with Ubuntu Linux.
Have experience in writing Android apps using Kotlin/Java.
Also coming with 8+ years of experience and Specialist’s degree (Ukrainian education) in Information Technology.
Node.js, NestJS, TypeScript, AWS (EC2, Lambda, S3, SQS, RDS, CloudFront), PostgreSQL, MySQL, ElasticSearch, Redis, Docker, PHP, Laravel, Codeigniter, Phalcon, Symfony, Linux, Laravel Forge
Mastra framework (TypeScript agents, tools, workflows, memory, evals), n8n automation, AI agents on Node.js/NestJS, LLM tool calling, MCP servers, RAG and vector stores, AWS Bedrock.
Javascript/Typescript, Vue.js, React.js, React Query.
Android Kotlin.
Work as Backend/Agentic Engineer on Node.js/NestJS and AWS, as well as Laravel/Vue.js, Next.js/React.js. Build NestJS services with TypeScript, PostgreSQL/MySQL, Prisma/TypeORM, BullMQ queues and REST/GraphQL APIs, deployed to AWS (EC2, Lambda, S3, SQS, RDS, CloudFront) with Docker and CI/CD. Build agentic features on top of LLMs with the Mastra framework and n8n: agents with tools, workflows and memory, MCP servers, RAG pipelines over vector stores, multi-step and human-in-the-loop automations. Support 2 projects. Language school and high load project based on Laravel, MySQL, ElasticSearch, Redis, Laravel Horizon Queue, React.js, Next.js. Optimized MySQL queries using indexes, redis queues, redis cache. Implemented optimized ElasticSerach mappings and DSL queries. Optimized queue workers using Laravel Horizon. Also developed mobile application for language school based on Android Kotlin.
High load projects based on MySQL/Solr/PHP/Zend 1. Supported carid.com, truckid.com, motorcycleid.com, boatid.com, powersportsid.com with inner CRM and admin panel. Optimized MySQL queries with over than 500 million of records.
Developed and supported website based on Phalcon 3/jQuery/MySQL/Memcached.
Developed websites mdi-toys.ru, mdi.com.ua with PHP Bitrix CMS. Developed website lucyandleo.com, lucyandleo.ru on Codeigniter 3. Developed crm.mdi-toys.ru on Codeigniter 3/Vue.js 3.
Worked as Bitrix/Wordpress CMS programmer. Developed online store good-kvadro.ru with Bitrix CMS and 10 websites using Wordpress CMS.
Learnt Delphi and C++ programming.