✔ Develop and maintain a prominent B2C application specializing in travel and air/rail ticket sales within the Republic of Kazakhstan, holding a leading position in the market.✔ Execute tasks within the Avia-Content Team, focusing on key performance indicators such as integration with third-party data sources, search speed, search result relevance, bookability, loyalty program effectiveness, and the implementation of proprietary products for air transportation.💡 𝐒𝐤𝐢𝐥𝐥𝐬: Python 3.9-3.11 · K8s · SOA · System Design · Databases · REST · Websocket · GitFlow📊 Implemented OpenTelemetry tracing like an end-to-end analytics tool, enabling real-time tracking of key platform components' performance.🛠 Successfully resolved Kubernetes probes for select services lacking APIs, notably enhancing the platform's fault tolerance.🔍 Enhanced search speed by an average of 10-20%, directly impacting booking and ticket purchase conversion rates.🎁 Integrated a loyalty program seamlessly into search and booking functionalities, addressing critical vulnerability issues and optimizing caching mechanisms.✈️ Facilitated integrations with new external providers, bolstering the market position by offering competitive airfare options.📶 Optimized development processes, improved code quality control🔨 𝐓𝐨𝐨𝐥𝐬: PostgreSQL · ELK · Redis · Clickhouse · RabbitMQ · Docker · Sentry · Graphite · Jaeger · Sanic · Uvicorn · Gunicorn · Django · Gitlab · GitlabCI

✔ Contributed to the release of the Beta version of the product and participated in prototyping for future product development.✔ Developed high-tech solutions focusing on near-real-time search using BM25F probabilistic and nearest neighbor techniques in embeddings vector space retrieval and ranking.✔ Created microservices using Python and .NET Core prioritizing stability, reliability, monitoring, documentation, and security.✔ Implemented a scalable resource-oriented architecture for handling unstructured data capabilities such as text search, similarity analysis, and leveraging Elasticsearch's capabilities.💡 𝐒𝐤𝐢𝐥𝐥𝐬: Python 3.9 · FastAPI · .NET Core 7 · System Design · SPARQL · Software Engineering · Big Data🔨 𝐓𝐨𝐨𝐥𝐬: PostgreSQL · StarDog (GraphDB) · ElasticSearch · Kibana · AWS CLI · Rancher Desktop · WSL2 · Docker · Docker Compose · k8s · Azure DevOps · Teams · Postman · Git · ArgoCD · Mend · WhiteSource · Grafana · Jupyter Lab · SonarQube🔍 Developed a prototype document search service using the BM25 algorithm and implemented rounds to calculate search quality metrics. Uploaded annotated datasets, including decomposed MSMarco, to Elasticsearch.📊 Integrated all existing services with OpenTelemetry for efficient collection and analysis of Observability data.☑️ Ensured services were production-ready by addressing architectural requirements for security, monitoring, logging, and error handling.🛠 Assumed DevOps responsibilities, including configuring CI/CD pipelines, setting up development and testing infrastructure, and deploying new services created by the team.

✔ Contributed as a member of the backend development team for a procurement platform service.✔ Highload service (designed for a 300K+ active users | ~200 RPS)✔ Implementation of business requirements for procurement pipelines✔ Integration with front-end team in vue.js to implement some features🔨 𝐓𝐨𝐨𝐥𝐬: Python 3.9 · FastAPI · PostgreSQL · SQLAlchemy · Redis · Docker, GitLab CI, ELK-stack · RabbitMQ · SonarQube · Jira · Confluence.📖 Implemented robust pagination, sorting, and filtering functionalities for various areas and service objects, enhancing user experience and efficiency.🔎 Developed and integrated a full-text search feature into the service, improving search capabilities and user satisfaction.🛠 Actively performed DevOps functions within the team, including service production, Docker file creation, CICD setup, and service deployment.

✔ Implementation of business requirements and features in the legacy service of local use in the holding company (ERP systems, document management, production accounting)✔ Elimination of technical debt and optimization✔ Assumed a managerial role, leading the development team towards successful project completion.🔨 𝐓𝐨𝐨𝐥𝐬: Visual Studio, MS SQL, Redmine, Confluence, Kanban📈 Promoted from Junior Developer to Lead Developer for outstanding performance and leadership abilities.🧹️ Refactored and optimized codebase, significantly improving readability, maintainability, and overall performance. Reduced resource consumption by an average of 30%.📚 Independently designed and developed production planning and variance management projects, resulting in substantial cost savings and enhanced production efficiency.