Software Engineer
2019 - 2020Megaphone, LLC- Delivered performance and UX improvements to customer-facing UI.
- Refactored legacy Rails-views and jQuery logic into React components.
- Implemented state-of-the-art testing practices.
- Upgraded numerous outdated dependencies, including React from 15.6 to 16.8.
- Delivered a highly parallelized, dockerized, Elixir application for forecasting orders.
- Rewrote a legacy Ruby component as a new Phoenix microservice.
- Tracked down and resolved bugs in an existing Ruby on Rails application.
Technologies: React, CSS, Ruby on Rails, Elixir, Phoenix, Docker, PostgreSQL, Redis, Google Cloud PlatformSoftware Engineer
2016 - 2018Aspiration Partners, LLC- Designed and delivered an SOA system for financial account opening and management.
- Implemented a solution for the processing and storage of PII and other sensitive data.
- Increased account security by building a 2FA solution.
- Mitigated the amount of fraud by setting up a system for identity verification.
- Built a mechanism for migrating users from one banking partner to another.
- Optimized the performance via algorithms and query tuning; in one case, reducing the job execution time from eight hours to under one second.
- Proactively identified and communicated risks to management; created plans to mitigate risk in each of the projects.
- Managed the application deployment and post-deployment verification.
- Delivered improvements to the internal admin portal built on React and Node.js.
- Implemented a system for ingesting files from a banking partner using Python.
Technologies: Ruby on Rails, React, Node.js, Java, PostgreSQL, RabbitMQ, Docker, Vault, GraphQLTech Lead
2014 - 2016The Honest Company, Inc.- Increased the customer conversion rate by 10% by optimizing the performance and UX of a web-based checkout flow.
- Enhanced an order management system with the capability to fulfill an order from multiple distribution centers.
- Built and A/B tested experimental features on top of an existing platform.
- Managed a cross-functional team of eight developers.
- Ensured the application performance by monitoring the system and delivering optimization patches.
Technologies: Ruby on Rails, AngularJS, PostgreSQL, RabbitMQ, Optimizely, MongoDB, CoffeeScriptSoftware Engineer
2013 - 2014Fiksu, Inc.- Developed a customer-facing web portal for the management of advertising campaigns.
- Crafted APIs and interactive data visualizations.
- Designed and delivered rapid prototypes of web GUIs.
- Expanded the functionality and improved the performance of administrative tools.
- Wrote and executed database migrations.
- Improved API performance via database query tuning.
- Integrated a web portal with Stripe.
Technologies: Ruby on Rails, jQuery, Highcharts, MySQL
Andrey Izotov
JavaScript Developer in Los Angeles, CA, United States
Member since August 21, 2018
Andrey is a full-stack developer specializing in the delivery of optimized solutions built with React and Ruby on Rails. Zealous about TDD, he enjoys delivering maintainable systems with high-test coverage. He produces reliable results, whether leading a team or working independently. Passionate about designing software systems, Andrey can provide a solution to satisfy your technical needs.
Andrey is now available for hire
Portfolio
- Megaphone, LLCReact, CSS, Ruby on Rails, Elixir, Phoenix, Docker, PostgreSQL, Redis...
- Aspiration Partners, LLCRuby on Rails, React, Node.js, Java, PostgreSQL, RabbitMQ, Docker, Vault...
- The Honest Company, Inc.Ruby on Rails, AngularJS, PostgreSQL, RabbitMQ, Optimizely, MongoDB...
Experience
- Object-oriented Programming (OOP), 12 years
- SQL, 9 years
- Test-driven Development (TDD), 8 years
- Ruby on Rails (RoR), 8 years
- JavaScript, 8 years
- RabbitMQ, 5 years
- React, 3 years
- Node.js, 1 year
Availability
Part-time
Preferred Environment
VS Code, macOS, Docker, GitHub
The most amazing...
...thing I've built is an optimization for an eCommerce checkout flow that increased customer conversion by 10%.
Employment
Experience
- Account Opening and Management System Implementation (Development)
I designed and delivered an SOA system for opening and managing financial accounts. The system was comprised of third-party service integration points, internally-accessible-and-public-facing APIs, and background processing modules.
Technologies: Ruby on Rails, PostgreSQL, RabbitMQ - Two-factor Authentication Implementation (Development)
I enhanced an application's security by implementing a 2FA solution.
Technologies: Java, PostgreSQL, Twillio - User Migration Implementation (Development)
I implemented a mechanism for migrating users from one banking partner to another.
Technologies: Ruby on Rails, PostgreSQL, RabbitMQ - Checkout Flow Improvement (Development)
I improved the checkout flow of an eCommerce application by rebuilding a multi-page Rails-views experience as a single-page application. The resulting performance and UX improvements accounted for a 10% conversion lift.
Technologies: Ruby on Rails, AngularJS, Optimizely - Order Management System Improvement (Development)
I enhanced an order management system with the capability to fulfill an order from multiple distribution centers.
Technologies: Ruby on Rails, PostgreSQL, RabbitMQ - CellSim (Other amazing things)https://www.youtube.com/playlist?list=PLmatbM0gftCvPawO_vajHoLuAbIM_H_36
Inspired by biological cell behavior, I designed and developed an application for modeling mutations of living tissues. The simulation included cell division, death, mutation, movement, angiogenesis, metastasis, inter-cell signaling, and elimination of severely mutated (cancer) cells.
Technologies: C#, XNA, WPF, Dynamic Data Display - Secret Storage Implementation (Development)
I enhanced a software system with secure secret storage and dynamic credential-provisioning mechanism via a Vault integration.
Technologies: Ruby, Java, Vault - Podcast Advertisement Forecast Implementation (Development)
I built a solution for forecasting podcast advertisement downloads. This was done by creating two models: for episode downloads and ad impressions. The former modeled the episode requests N days after launch while the latter modeled the ad-slot impressions.
These models were then used to generate mock episode download requests, which were in turn fed into an ad decision engine. The solution was delivered as a highly-parallelized, dockerized, and well-documented application with >95% test coverage.
Technologies: Elixir, Phoenix, PostgreSQL, Redis, Docker - IP Rainbow Table Generation (Development)
I wrote a highly-parallelized script to generate an IP rainbow table for looking up hashed IPs.
Technologies: Elixir - Multistep Order Creation Wizard (Development)
I built a multi-step wizard for creating an advertisement order in a web UI. The solution was delivered as a composite of React components complete with tests, documentation, and animations.
Technologies: React, CSS, Ruby on Rails - Upgrading a Legacy Front End (Development)
I updated a legacy front end, previously built with jQuery and Rails views with React components including, among others, modals, selectors, and filters.
Technologies: React, CSS, jQuery, Ruby on Rails
Skills
Languages
JavaScript, Ruby, HTML5, CSS, SQL, GraphQL, CoffeeScript, Python, JavaFrameworks
Ruby on Rails (RoR), AngularJSLibraries/APIs
React, jQuery, D3.js, Stripe, Node.jsTools
Git, CircleCI, Vault, RabbitMQParadigms
Test-driven Development (TDD), Agile Software Development, Object-oriented Programming (OOP), Continuous Integration (CI)Platforms
Docker, New Relic, Rancher, Amazon Web Services (AWS), Google Cloud Platform (GCP)Storage
PostgreSQL, MongoDB, Datadog
Education
- Bachelor's degree (magna cum laude) in Computer Science2009 - 2013University of Massachusetts - Amherst, MA, USA
