- Led a development team of 4 people to serve high quality products on startup basis;- Developed 10+ applications like ETL, SERP parsers and automation tools for internal usage to make programmatic ads department more automotive;- Designed data storage schemas to keep data convenient for analytic purposes;- Set up and administer servers with our software, databases and Airflow (bare metal, docker compose and Kubernetes deployments) to satisfy our growing department needs;- Developed intuitive user interfaces (ReactJS, Django Templates) to allow managers and analytics provide clients convenient reports;- Organized development workflow with CI/CD pipelines, version control (Git) and testing to speed up products development and increase overall software quality;- Wrote documentation and schemas for APIs and other applications to keep track of features and make new team members on-boarding process easier.

- Led a team of 3 engineers to develop the whole product from scratch;- Created node graph interface for feeds data management in browser to make the most satisfying user interface and keep user experience on the high level;- Coded creative design editor in ReactJS with shared functionality with Node backend to seamlessly reproduce and quantify their templates with thousands of products;- Build high-performance image processing pipeline in Amazon (later Yandex) Cloud and MongoDB to allow giant e-commerce clients update their creatives on hourly basis;- Made a Django administration backend with convenient REST API allowing seamless frontend communication and ease of continuous development;- Developed an algorithm of parsing DAG created in the node interface to Celery tasks chains avoiding unused branches and infinity cycles;

- Directing a talented team of artists and web designers for high-profile projects including the FORMA arts and music festival. Successfully managed multiple projects simultaneously, ensuring timely and quality delivery.- Oversee the analytics of various websites, implementing strategies that leading to improved performance metrics and user engagement.- Pioneering the integration of advanced payment systems and other web functionalities. This initiative significantly enhancing user experience and streamlining transaction processes.

- Provided guidance in developing Slise's innovative on-chain ad server;- Played a critical role in leveraging blockchain technology for targeted advertising in the Web3 space;- Contributed to Slise's ability to deliver exceptional campaign results for clients in Web3.

- Managed data processing tasks in a high-paced startup environment using Kafka, ClickHouse and Python to match business requirements and IAB certification;- Refactored, updated and covered a Django project with tests with over 200 conflicting dependencies to increase performance, security and scalability;- Worked on Docker containerization to increase service mobility and scalability and improve developer experience (DX);- Responsible for system design of core high-performance (200k+ requests per second) services to preserve SLA and availability of the most popular podcasts;- Implemented a cost-saving strategy by migrating key services to Advanced RISC Machine (ARM) architecture, right-sizing environments and tiers, reducing Amazon Web Services (AWS) bill by 30%;- Administrated Cloud infrastructure by implementing RBAC to most of the services, configuring VPC and implementing Infrastructure as a Code (IaaC) approach to the key services to increase security and deploy convenience;- Developed CI/CD pipelines using GitHub actions to make build, test, deploy easier and rollback processes faster to make services more fault tolerant;- Worked on complex TypeScript React frontend and Node.js Express backend to provide clients more analytic charts for all their needs;- Optimized queries and workload with Postgres and Clickhouse by improving queries, implementing caching, tuning database configurations and implementing connection pools to reduce load on data warehouses and increase throughput;- Took part in improving conversion attribution (first, last and multi touch) pipeline and billing system to provide clients the most accurate data as fast as possible;- Created innovative ads server MVP addressing a significant frequency problem in podcast advertising.

- Developed backend of real-time dynamic retargeting platform used by biggest e-commerce platforms like Ozon, Lamoda, DomClick and others solving problems popular in advertising industry like already purchased or irrelevant products;- Designed and developed high-performing and fault-tolerant recommendations processing using Kafka, RabbitMQ, MongoDB and Celery with green threads serving millions of users accurate and always actual recommendations;- Worked with ML and AI teams on integrating their models in retargeting systems keeping pleasant collaboration and strong integration between departments.

- Development of a browser tracking code and fingerprinting service to make CPA marketing platform more valuable for webmasters by linking more conversions;- Development of system components for reconciliation of payments between advertisers and webmasters to increase their profit;- Covered code base with unit tests to make the system more reliable and assure quality of future releases.

- Took part in developing an internal task manager and software for accounting of staff, clients, and document flow with 1C to automate most of the company's processes;- Worked on auxiliary service to help copywriters and other departments work faster;- Was developing a CRM platform for SEO analytics to raise websites' position in organic results.