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I am a Senior Full-Stack Engineer with over 10 years of experience building scalable web applications and AI-driven solutions. I specialize in Java, Python, React.js, Django, Flask, Spring Boot, and SQL for large-scale data processing, and I work across cloud platforms including AWS, Azure, and GCP. I enjoy turning complex business problems into efficient, data-driven applications. I have hands-on experience with LLM fine-tuning, vector search with Hugging Face, and semantic ETL pipelines powered by Kafka and Airflow. I am passionate about applying cutting-edge technologies such as TensorFlow and PyTorch to deliver practical AI solutions, collaborating with cross-functional teams, and continuously learning to stay ahead in the field.…I am a Senior Full-Stack Engineer with over 10 years of experience building scalable web applications and AI-driven solutions. I specialize in Java, Python, React.js, Django, Flask, Spring Boot, and SQL for large-scale data processing, and I work across cloud platforms including AWS, Azure, and GCP. I enjoy turning complex business problems into efficient, data-driven applications. I have hands-on experience with LLM fine-tuning, vector search with Hugging Face, and semantic ETL pipelines powered by Kafka and Airflow. I am passionate about applying cutting-edge technologies such as TensorFlow and PyTorch to deliver practical AI solutions, collaborating with cross-functional teams, and continuously learning to stay ahead in the field.

Sophiia Sheretko

Full Stack Developer, Back-End Developer, Web Developer, +3

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I am a Senior Full-Stack Engineer with over 10 years of experience building scalable web applications and AI-driven solutions. I specialize in Java, Python, React.js, Django, Flask, Spring Boot, and SQL for large-scale data processing, and I work across cloud platforms including AWS, Azure, and GCP. I enjoy turning complex business problems into efficient, data-driven applications. I have hands-on experience with LLM fine-tuning, vector search with Hugging Face, and semantic ETL pipelines powered by Kafka and Airflow. I am passionate about applying cutting-edge technologies such as TensorFlow and PyTorch to deliver practical AI solutions, collaborating with cross-functional teams, and continuously learning to stay ahead in the field.…I am a Senior Full-Stack Engineer with over 10 years of experience building scalable web applications and AI-driven solutions. I specialize in Java, Python, React.js, Django, Flask, Spring Boot, and SQL for large-scale data processing, and I work across cloud platforms including AWS, Azure, and GCP. I enjoy turning complex business problems into efficient, data-driven applications. I have hands-on experience with LLM fine-tuning, vector search with Hugging Face, and semantic ETL pipelines powered by Kafka and Airflow. I am passionate about applying cutting-edge technologies such as TensorFlow and PyTorch to deliver practical AI solutions, collaborating with cross-functional teams, and continuously learning to stay ahead in the field.

Available to hire

I am a Senior Full-Stack Engineer with over 10 years of experience building scalable web applications and AI-driven solutions. I specialize in Java, Python, React.js, Django, Flask, Spring Boot, and SQL for large-scale data processing, and I work across cloud platforms including AWS, Azure, and GCP. I enjoy turning complex business problems into efficient, data-driven applications.

I have hands-on experience with LLM fine-tuning, vector search with Hugging Face, and semantic ETL pipelines powered by Kafka and Airflow. I am passionate about applying cutting-edge technologies such as TensorFlow and PyTorch to deliver practical AI solutions, collaborating with cross-functional teams, and continuously learning to stay ahead in the field.

Skills

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Intermediate

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Intermediate

Work Experience

Senior Software Engineer at DNA Micro

May 1, 2022 - Present

Built and maintained full-stack features using React.js and Java Spring Boot; developed and consumed RESTful APIs; deployed containerized applications on Azure-compatible services; optimized SQL interactions for large-scale financial data processing; implemented ETL pipelines and microservices leading to a 60% reduction in manual workflows and sub-50ms latency; contributed to AI-driven fraud detection analytics using TensorFlow/PyTorch and NLP techniques.

Full Stack Engineer at ReachLink

September 1, 2020 - April 1, 2022

Architected AI-powered chatbot and recommendation engines using Python, NLP (spaCy, BERT), and LLM techniques (RAG, Langchain); developed scalable backend services interfacing with SQL data sources; implemented OAuth2/JWT authentication for secure access; migrated to microservices with Django/React, achieving ~30% performance improvements and higher conversion rates; designed and deployed data pipelines for real-time analytics.

Software Developer at Kodershop

June 1, 2016 - May 1, 2020

Optimized a high-traffic patient portal with Java and SQL tuning, Redis caching; implemented ETL pipelines using Apache Kafka and Airflow to normalize JSON from MongoDB and enrich with vector embeddings to support semantic search; built automated testing frameworks with Python (pytest) and Selenium; improved reliability and scalability.

Junior Software Developer at Soft Positive

August 1, 2014 - May 1, 2016

Developed an automated voice call center using Twilio and Node.js; contributed to Java/Spring web apps to improve stability and reduce bugs; optimized SQL Server and PostgreSQL performance; built a Django-based data analytics platform using MongoDB; established unit testing with Jest to improve code quality.