Andrew – JavaScript, React, Typescript

Andrew managed three Next.js web applications, utilizing tRPC as the mediator between the front-end and a FastAPI backend. His role focused heavily on front-end architecture while also supporting backend CRUD operations.

One of the most challenging front-end tasks was to implement the "Optymistic" sync engine via indexedDB. This is a really cool piece of tech, that allows off-line interaction with the front-end apps and sync when internet connection is established.

Additionally, he expanded into iOS development, building a Swift application designed to establish SSH connections to private servers. This allowed users to run AI agents directly against their server data.

One of Andrew's most challenging yet rewarding experiences was participating in a Quantstamp audit for CosmosEVM. He was responsible for addressing audit findings by implementing critical fixes in the smart contracts and expanding the test suite to ensure institutional-grade security.

• architected and managed three Next.js applications;
• participated in development of the sync engine;
• led front-end architecture while contributing to back-end;
• engineered a Swift iOS application for establishing secure SSH connections;
• enabled remote AI agent execution against private server data via mobile;
• implemented smart contract fixes and expanded test suites for CosmosEVM;

The company creates and scales investment opportunities while also focusing on their personal inventions. One of their amazing products is Fully AI, a tool that allows you to create or find your AI experience in minutes. The key idea is to enable anyone to create an AI agent for their business, which will have exact knowledge about the products or services they provide.

The coolest part? The team built a flawless front-end using a state-machine approach.

Andrew led the end-to-end development of this chatbot back before the AI boom. They were early adopters of several key patterns:

• Using RAG for long-term memory and Mongo for short-term.
• Formatting context based on search queries.
• Deploying multiple agents to decide on the best user outcomes.

Today, these functionalities are standard from LLM providers, but the team's early success led to the app’s acquisition by Circus SE Group.

• engineered a deterministic front-end architecture;
• architected a hybrid memory system;
• pioneered agentic design patterns;
• managed the full product lifecycle;
• optimized chatbot performance;

It is a platform that centralises services that newcomers often need to access throughout their settlement and integration journeys. It contains resources found in seven of Canada’s major cities: Halifax, Montreal, Toronto, Ottawa, Calgary, Edmonton and Vancouver.

• simplified the existing front-end architecture;
• created a simple user flow with maps;
• revised the existing approach to component usage;
• implemented the easier storage interaction;
• created a simple localisation structure;
• improved the maps custom locations filtering and search;
• created custom map controls for better UX;
• delegated tasks to trainees;
• revised trainees implementation and provided constant feedback.

This product works on huge AI-based testing for any API. The enormous system that is test-builder demands a huge front-end and supporting products.

• allows to observe Kubernetes traffic and creates tests to ensure API is production-ready;
• has the ability to mock API;
• creates a constant API check and compares it with mocks;
• analyzes traffic and detects flaws of the Kubernetes clusters via the web app.

• Integrated a system, that uses TDD approach and allows smart reuse of components in the main app
• Created a structure that allows easily update and extend the application
• Helped to ensure the transfer of the main application from Redux to Mobx
• Compared and selected the best CMS approach for the marketing website
• Worked closely with CMS provider to ensure their product fulfills all our needs
• Worked on the back-end API to create an end-to-end solution for enormous features on the main product

This is a company, that allows a user to sell their device in a few clicks.

• a user may sell their device via the app;
• they will be guided through the whole process via a sequence of email;
• a shipment kit will be sent through UPS, USPS, or DHL;
• payment is transferred via PayPal;

His favorite project. The development was implemented end-to-end by only him.

• Created architecture and chosen the technologies specifically for the app demands
• Developed the app architecture based on the user journey and database models
• Implemented the app structure in a way, that it can be scaled easily
• Developed the structure for the admin part
• Implemented back-end hooks for triggering emails to users
• Developed the main marketing website with respect to future CMSs

The product allows you to design, secure, analyze, and scale APIs anywhere with visibility and control.

• It provides AI-prowered API monitoring, which is cool
• Gives an opportunity to manage microservices as APIs
• Allows to build and scale API programs with full API life cycle capabilities
• Drives consumption of APIs with flexible developer portal options
• Gains actionable insights across the entire API value chain
• Monetizes API products and maximizes the business value of your digital assets

• Developed a CLI to prode additional functionality to API (soft delete; specific entity backup)
• Implemented the CLI and a separate NodeJS proxy to run additional commands for the product;
• Developed a standalone server for the management tool;
• Allowed in-CLI login;
• Provided an ability to update all the possible entities from console;

This is a company, that works on XSN cryptocurrency. They work on a wide range of products.

• Created cloud platform for staking and automatic masternodes creation
• Developed and supported the main marketing website
• Created front-end architecture
• Compared different approaches to solving non-trivial tasks
• Had an opportunity to write his own libraries and modules for the app
• Introduced testing approaches to the team