Work Experience
Senior Backend Developer | Tech Lead (AI Voice-to-Voice Telephony Verification System)
Duration: Oct 2025 – Jan 2026
Summary:- Designed and implemented an AI-driven voice-to-voice telephony system for automated client identity and account status verification
- The system autonomously initiates outbound calls, conducts verification dialogs, and captures structured verification results, supporting real-world telephony scenarios including voicemail detection and IVR navigation
- It uses a Retrieval-Augmented Generation (RAG) layer to fetch relevant client and contextual data during live calls, enabling dynamic prompt adaptation in real time with full end-to-end automation including monitoring and escalation flows
Responsibilities:- Designed end-to-end architecture for automated voice verification workflows;
- Implemented outbound voice call handling with IVR and voicemail detection;
- Built real-time dialog management with dynamic prompt adaptation;
- Integrated RAG pipelines to retrieve client and account context during calls;
- Implemented structured result extraction and verification outcome storage;
- Designed monitoring, confidence scoring, and escalation mechanisms for uncertain cases;
- Implemented voice interfaces for conversational interaction.
Technologies: Python, FastAPI, OpenAI Realtime, RAG, Vector Databases, Telephony APIs, Docker
Senior Backend Developer | Tech Lead (AI-Based Buying Committee Identification Platform)
Duration: Oct 2025 – Jan 2026
Summary:- Designed and implemented an AI-powered system for identifying a company’s Buying Committee within an existing contact base
- The platform builds structured company profiles by combining PDF parsing, AI-based content analysis, and data aggregation from multiple external sources via APIs and scraping
- It uses a custom LLM-driven algorithm with prompt chains to infer roles, influence levels, and relationships within the Buying Committee, followed by automated validation and provides analytical insights through interactive dashboards
Responsibilities:- Designed system architecture for Buying Committee identification workflows;
- Implemented PDF parsing and AI-based document analysis pipelines;
- Built data aggregation and scraping mechanisms via APIs and external sources;
- Developed a custom LLM-based prompt-chain algorithm for role and influence detection;
- Implemented validation logic to ensure result accuracy and consistency;
- Designed analytics layers with interactive charts and visualizations for end users.
Technologies: Python, FastAPI, LLMs, LangChain, PDF Parsing Tools, Web Scraping, APIs, Vector Databases, BI & Visualization Tools
Senior AI Developer | Tech Lead (AI Platform for Media Analytics)
Duration: Oct 2024 – Oct 2025
Summary:- Developed and maintained an AI-driven platform component for orchestrating media data workflows using a tool-based LLM agent
- The system enables direct ingestion of media content from external sources including YouTube channels, search results, and individual content URLs, interactive exploration of project datasets through table-based querying, and generation of analytical reports with optional LLM-powered processing
- The agent pipeline was designed for deterministic behavior, schema correctness, and reliable tool orchestration across complex workflows
Responsibilities:- Designed, built, and owned the LLM agent pipeline end-to-end;
- Implemented tool-based agent orchestration for media data ingestion and analysis workflows;
- Integrated external content sources, including YouTube channels, search APIs, and direct content URLs;
- Enabled interactive exploration of project tables using structured, ag-grid-style query patterns;
- Developed analytical report generation with optional LLM-based post-processing;
- Stabilized and standardized Jinja-based prompt templates to ensure deterministic tool selection and schema-valid outputs;
- Maintained an evaluation and regression testing harness to validate agent behavior, expected tool execution paths, and output correctness.
Technologies: Python, LangChain, LangGraph, Langfuse, OpenAI, OpenRouter, Gemini, Jinja Templates, APIs
CTO | Data AI Architect (Hell & Heaven Travel – AI-Powered Personal Travel Concierge)
Duration: Oct 2024 – Oct 2025
Summary:- Designed and implemented an AI-powered personal travel concierge that helps users plan trips, receive personalized recommendations, and interact via chat and voice
- The system is built on a multi-agent architecture where specialized AI agents collaborate to handle itinerary planning, recommendations, and user communication across multiple channels
Responsibilities:- Designed a multi-agent AI system using integrated LLMs;
- Architected cloud-native backend and application infrastructure;
- Developed a web application with messaging-platform chatbot integration;
- Implemented voice interfaces for conversational interaction.
Technologies: Python, FastAPI, OpenAI, LangChain, Docker, AWS, WebSockets, Messaging APIs
CTO | Data AI Architect (OnlyAsk – AI-Powered Teacher Assistant)
Duration: Mar 2025 – Oct 2025
Summary:- Built an AI-powered assistant for teachers that supports lesson preparation, student interaction, and contextual Q&A
- The system combines multi-agent LLM orchestration with real-time voice and chat interfaces and a Retrieval-Augmented Generation pipeline to ensure accurate, context-aware responses
Responsibilities:- Designed a multi-agent AI architecture using integrated LLMs;
- Developed a cloud-native web application and chatbot;
- Implemented real-time voice streaming interfaces;
- Built a Retrieval-Augmented Generation (RAG) pipeline to improve contextual accuracy.
Technologies: Python, FastAPI, OpenAI, LangGraph, LangChain, PostgreSQL, Docker, WebSockets
Data Engineer | Senior Backend Engineer (NDA Project – Enterprise Legacy Backend & CI/CD Modernization)
Duration: Sept 2024 – Oct 2025
Summary:- Supported and modernized large-scale enterprise backend systems built on legacy platforms
- The project focused on stabilizing core business logic, improving deployment reliability, and introducing automated CI/CD pipelines
Responsibilities:- Supported large-scale backend systems using PL/SQL and Java;
- Worked with legacy platforms including Dragon Designer;
- Designed and implemented CI/CD pipelines using GitLab CI/CD;
- Integrated AWS services to ensure reliable automated deployments.
Technologies: PL/SQL, Java, GitLab CI/CD, AWS, Oracle, Docker
Senior Data Engineer (NDA Project – Data Warehouse & BI Platform)
Duration: Nov 2024 – Sept 2025
Summary:- Designed and implemented a corporate Data Warehouse and analytics platform to support business reporting and decision-making
- The solution included ETL pipelines, relational storage, and BI dashboards
Responsibilities:- Designed and built DWH systems on PostgreSQL and MS SQL;
- Developed ETL workflows using SSIS and Azure Data Factory;
- Implemented analytical dashboards using Power BI.
Technologies: PostgreSQL, MS SQL, SSIS, Azure Data Factory, Power BI
Data Engineer (NDA Project – XML to DWH ETL System)
Duration: Feb 2025 – Aug 2025
Summary: Built a dedicated ETL system for transferring and transforming structured XML data into a relational Data Warehouse optimized for reporting and analytics.
Responsibilities:- Built Data Warehouse solutions on MS SQL;
- Developed ETL pipelines for XML-to-database data ingestion;
- Ensured data validation and consistency across transformations.
Technologies: MS SQL, SSIS, XML, SQL
Senior Data Engineer (NDA Project – IBM Cloud DWH Recovery & Refactoring)
Duration: Sept 2024 – Oct 2024
Summary: Restored and refactored an existing Data Warehouse hosted on IBM Cloud to improve performance, stability, and maintainability after operational degradation.
Responsibilities:- Restored broken Data Warehouse pipelines;
- Refactored schemas and ETL logic for better maintainability;
- Optimized performance in IBM Cloud environment.
Technologies: IBM Cloud, DB2, SQL, ETL Tools
Senior Data Engineer (NDA Project – AWS Data Ingestion & Reporting Platform)
Duration: Jan 2025 – Oct 2025
Summary: Engineered a scalable data ingestion and reporting platform on AWS to support analytics and business intelligence workloads.
Responsibilities:- Engineered data ingestion pipelines using AWS services;
- Built workflows using Redshift, S3, and Athena;
- Designed optimized data models and stored procedures;
- Ensured consistent and reliable reporting outputs.
Technologies: AWS Redshift, S3, Athena, SQL, Python
VP Engineering – Core Technology - Act Trader Technologies (Act Trader Technologies – Core Trading Platform Modernization)
Duration: Mar 2024 – Aug 2024
Summary: Led modernization of a legacy trading platform by migrating to a cloud-native, event-driven microservices architecture with improved scalability, observability, and fault tolerance.
Responsibilities:- Introduced cloud-native microservices architecture;
- Refactored 12+ core trading services;
- Implemented NATS-based event-driven communication;
- Improved fault tolerance through containerization and CI/CD;
- Led distributed engineering teams across multiple time zones.
Technologies: Docker, NATS, CI/CD, Cloud Platforms, Git
CTO | Tech Lead | Senior DWH Developer - DataMola (DataMola – Enterprise Data & AI Solutions)
Duration: Nov 2015 – Feb 2024
Summary: Led and delivered enterprise-grade data engineering and analytics solutions for clients across finance, logistics, telecom, and e-commerce industries.
Responsibilities:- Led 20+ full-cycle data engineering projects;
- Designed enterprise data lakes and analytics platforms;
- Built event-driven and self-healing ETL pipelines;
- Integrated ML models for forecasting, fraud detection, and behavior analysis;
- Established coding standards, CI/CD processes, and observability practices;
- Reduced ETL maintenance costs by 40% through reusable components.
Technologies: PostgreSQL, Oracle, Python, ML Frameworks, CI/CD, Cloud Platforms
Team Lead – Risk & Reporting - SoftClub (SoftClub – Risk & Regulatory Reporting Platform)
Duration: Jan 2009 – Nov 2016
Summary: Developed a regulatory-compliant data warehouse for financial and governmental reporting with full auditability and automated reporting pipelines.
Responsibilities:- Led development of regulatory-compliant DWH on Oracle / Exadata;
- Translated regulatory requirements into automated data flows;
- Managed agile delivery across development and analyst teams;
- Coordinated with finance and compliance stakeholders.
Technologies: Oracle, Exadata, PL/SQL, ETL Tools
Education
- PhD in Mathematics (p-Adic Analysis)
Belarusian State University
- Master’s degree in Mechanics & Mathematics
Belarusian State University
- Postgraduate Finance & Banking Courses
Belarusian State Economic University
Upstaffer since April, 2026
