Dmitrii Gaidarji, Developer in Balti, Moldova
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Dmitrii Gaidarji

Bio

Dmitrii is an accomplished full-stack web application developer with over a decade of experience building innovative, data-driven solutions across various industries. With a strong focus on integrating AI and modern web technologies, Dmitrii has consistently delivered impactful applications that enhance user experience and streamline processes.

Portfolio

Design Barn, Inc.
Full-stack, GraphQL, TypeScript, React, JavaScript Testing, UI Testing...
Pfizer - PGS Operations Insights
React, Full-stack, JavaScript, CSS, HTML, SQL, Node.js, TypeScript...
Point-Dume
Ansible, NGINX, Celery, Django, Docker, Python, Full-stack Development, GitHub...

Experience

  • JavaScript - 10 years
  • MySQL - 6 years
  • Java - 4 years
  • NGINX - 4 years
  • Docker - 3 years
  • Django - 3 years
  • Agile Software Development - 3 years
  • Python - 2 years

Preferred Environment

MacOS, CentOS, Docker, Firebase, AWS Bedrock AgentCore

The most amazing...

...thing I developed is an interactive chatbot that queries document data using embeddings and LLM, transforming complex information into user-friendly responses.

Work Experience

Full-stack Developer

2025 - 2025
Design Barn, Inc.
  • Optimized PostgreSQL indices and EdgeDB queries to enhance database performance and reduce query execution times.
  • Conducted in-depth reviews of Honeycomb logs to identify bottlenecks and improve system reliability.
  • Updated and enhanced Node.js codebase to improve functionality and maintainability.
  • Implemented comprehensive tests to ensure code quality and system stability.
Technologies: Full-stack, GraphQL, TypeScript, React, JavaScript Testing, UI Testing, Performance Optimization, Performance, Optimization, Full-stack Development, Application State Management, REST APIs, Database Optimization, Front-end Development, Back-end Development, Cloud, Profiling, Redux, Context API, Jest, Mocha, Chai, Playwright, Apollo Client, Apollo Server, Docker, Kubernetes, Amazon Web Services (AWS), Google Cloud, Azure, Back-end, Google Cloud Platform (GCP)

Full-stack Web Application Developer

2018 - 2024
Pfizer - PGS Operations Insights
  • Developed an interactive chatbot to query document data using Neo4j embeddings and LLM integrations like ChatGPT.
  • Developed an app that monitors the manufacturing processes worldwide across the company's plants and projects their completion dates on an interactive timeline.
  • Built a Google-like search engine powered by Elasticsearch to index and display the internal company database.
  • Developed a GraphQL database API interface for a Neo4j database to be accessed by agents with different permission levels.
  • Built chart-type applications, such as pie charts and Sankey diagrams, display complex graph data in an interactive one-way flow with filtering capabilities and animations.
Technologies: React, Full-stack, JavaScript, CSS, HTML, SQL, Node.js, TypeScript, Elasticsearch, Neo4j, D3.js, PostgreSQL, Next.js, Machine Learning, AI Chatbots, ChatGPT, ChatGPT API, Full-stack Development, Artificial Intelligence (AI), GraphQL, API Integration, GitHub, Supabase, Tailwind CSS, Auth, Supabase Auth, Front-end, Back-end, Grafana, APIs, RESTFul APIs, Google Cloud Platform (GCP), AWS Bedrock AgentCore

Full-stack Developer

2016 - 2018
Point-Dume
  • Developed an interactive React-driven customer web portal for accessing live accounting data cached using Redis/Redux and visualized with D3.js.
  • Created and set up multiple standalone back-end systems to maintain a REST API for a mobile application using Django.
  • Helped to organize hotspot certificate authentication using Java EJBCA service.
  • Developed the full-stack using React, Django, Gunicorn, Nginx, Redis, and MariaDB.
Technologies: Ansible, NGINX, Celery, Django, Docker, Python, Full-stack Development, GitHub, Front-end, Back-end

Web and Android Developer

2014 - 2016
Evenet LLC
  • Developed an anonymous location-based mobile social network for Android which was reviewed by a Russian developer.
  • Built a web interface for a social network application called Evenet. The idea of the network was to view different events nearby with the ability to create, invite, and share them with others.
Technologies: Java, Android, Full-stack Development

Experience

Surf Forecast Bot

The surf forecast bot fetches data from the web on demand, parses it, and presents a human-readable response via ChatGPT API. It supports conversations, image generation, and system prompt setup during runtime.

Customer Portal with D3.js Charts

https://drive.google.com/file/d/1SiH-sQfBKAcyn88-lkLuNIInTE4K0imb/view?usp=sharing
I developed and deployed a customer portal. Real-time data analysis was presented using reactive and interactive D3.js components with filterable source tables. This website tracked customer usage by different categories.

Fetcher App

An SEO tool to query against Google and YouTube.

Evenet

The landing page for a social network application, Evenet.

PDF Summary Report

http://thepdfreport.com
Solo project · AI · Paddle

A SaaS tool that condenses long-form documents into one branded page. Users configure their brand identity once, then upload an annual report, board pack, or research paper and get back a presentation-ready A4 PDF. An AI pipeline handles extraction and summarization, so there's no template to fill in — the structure and content of each output come from the source document itself.

I designed and built the whole thing: product direction, front end, AI pipeline, PDF rendering, and subscriptions via Paddle as merchant of record.

Education

2012 - 2016

Bachelor's Degree in Business informatics

National Research University Higher School of Economics - Moscow, Russia

Skills

Libraries/APIs

React, D3.js, Apollo Client, REST APIs, Auth, Node.js, Context API, Chai, Playwright

Tools

Celery, NGINX, GitHub, ChatGPT, Grafana, Ansible, Zapier, JavaScript Testing, Mocha

Languages

JavaScript, Python, Python 3, TypeScript, GraphQL, Java, CSS, HTML, SQL

Frameworks

Django, Next.js, Tailwind CSS, Redux, Jest, Agentic Frameworks

Paradigms

Agile Software Development

Platforms

Docker, Firebase, Google Cloud Platform (GCP), CentOS, MacOS, Android, Microsoft Power Automate, Microsoft, Kubernetes, Amazon Web Services (AWS), Azure

Storage

PostgreSQL, MySQL, MongoDB, Elasticsearch, Neo4j, Google Cloud

Other

Full-stack, Software Development, Full-stack Development, Artificial Intelligence (AI), Apollo Server, Application State Management, API Integration, Front-end, Back-end, APIs, RESTFul APIs, Machine Learning, Performance Optimization, Database Optimization, Supabase, Supabase Auth, AWS Bedrock AgentCore, AI Chatbots, ChatGPT API, UI Testing, Performance, Optimization, Front-end Development, Back-end Development, Cloud, Profiling, AI Agents

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