Siarhei Krutsilin Email & Phone Number

Warsaw, Mazowieckie, Poland

NDA:Designed and developed Proof of Concept for an advanced multi-tenant Retrieval Augmented Generation (RAG) application, integrating OpenAI with Azure Search for enhanced search capabilities that 5 customers are using.Developed a user-friendly interface, significantly improving user experience and interaction within the enterprise environment with compliance to WCAG 2.2.Optimized deployment pipelines with Azure Bicep Infrastructure as Code tool.React, NodeJS, NestJS, Python, PostgreSQL, Bicep, Azure, OpenAI, Cognitive Search, Jest, Cypress, FluentUI, Accessibility (WCAG 2.2, VoiceOver, Narrator, NVDA)NDA:Architected and implemented a comprehensive, stand-alone chat service offering complete functionality for both frontend and backend.Established a robust file-sharing system, catering to both public and private use cases within the chat module and other application components.Leveraged React, NestJS, and PostgreSQL (via Prisma) as core technologies, ensuring a cohesive and efficient tech stack for seamless development and scalability.Led integration of OAuth 2.0 and SAML protocols for enterprise customersReact, NextJs, NodeJS, NestJS, Socket.IO, PostgreSQL, Redis, AWS, Terraform, Typesense, Jest, Cypress, Ant Design, Styled componentsNDA:Developed a job aggregation software using a microservice/microfrontend architecture with CI/CD, enabling the posting and parsing of jobs to and from job sites in predefined formats.Implemented cloud computation and analyzing features for handling and processing large amounts of data, improving overall efficiency and scalability.Utilized React, NestJS, and MongoDB as primary technologies, and implemented Garden.io and Azure services for containerization and deployment, ensuring a streamlined and efficient development process.React, GraphQL, Jest, NodeJS, NestJs, Python, Scala, MongoDb, Elasticsearch, Kafka, Docker, Garden, Pulumi, Azure, Databricks, ADF, Mui, Styled components, Xslt, jq

Polotsk, Vitsyebsk, Belarus

Contributed to the development of a healthcare technology company that empowered payers, providers, and care partners with real-time data aggregation, EHR connectivity, and dynamic dashboards and reporting.Worked on data-driven solutions that had a significant impact on improving forms and data processing workflows, increasing overall efficiency and accuracy.Participated in the migration of legacy applications to new technologies, utilizing Angular, C#, MySQL, and REST, to improve overall system performance.Collaborated with cross-functional teams, including design, product, and QA, to deliver high-quality software solutions that met client needs and requirements

Gdańsk, Pomorskie, Poland

Designed, developed, and maintained a document management system using Node.js and MongoDB, which automated the creation of complex documents and streamlined the verification and correction process.Implemented a full-text search functionality that enabled users to easily search for any document by content, improving overall efficiency and productivity.Worked closely with a team of developers and project managers to ensure timely delivery of high-quality software solutions that met client needs and requirements.