Redocly

Building and leading Redocly’s global R&D organization

Director Of Engineering

Engineering Manager

Guesty

Managing team of engineers to design, build, and support novel solutions to Property Management Platform challenges across Guesty. Nodejs, reactjs, rabbitmq, MongoDB, microservices

Software Engineering Team Lead

Cengage Group

Learning Objects is educational technology company. Cengage Learning acquired Learning Objects
My responsibilities include Scala, js engineering in a large web application, where we deliver support for analytics, various dashboards, and integrations with other platforms.
15% of time responsible for BA (Looker) and warehouse (Snowflake)

Software Engineer, Full Stack

Pathbrite is a portfolio, assessment, and learning management system that helps educators, employers, and learners improve learning outcomes, increase course-passing rates, foster career development and placement, and enable project-based learning and peer collaboration. Launched in 2012, the company currently supports more than 900 schools with an increasingly global footprint.

My responsibilities included javascript engineering in a very large scale Backbone application, developing new features, squashing bugs, writing automated tests, improving the application on mobile devices, re-factoring older features, and improving dev build processes.

Cengage Learning acquired Pathbrite.

Lead Front-end Engineer

Front End Engineer 

Veeva Systems

Front-End Developer

chaspik

Information technology specialist, Web developer

Director of Engineering at Redocly

I'm an engineering manager and full-stack software developer with experience across a variety of domains. After years spent working on distributed systems, web platforms, and dynamic web applications, I now manage teams of highly engaged, talented engineers working in the open API world.

Engineering Management. Leadership. Leadership Development. Team Building. Execution, Technology Manager

Roman Marshevskyi

Aura

- Leading a team of 8+ software engineers, interviewing and hiring engineers
- Building engineering-driven culture within the team, onboarding and mentoring engineers, working on personal development plans
- Responsible for general architecture (both back-end and front-end parts) of the Password Manager and other privacy-related features
- Design and implementation of a cross-platform multithreaded C++ library containing core logic of the Password Manager feature that works on macOS, Windows, iOS, Android, Browser Extensions, and Web
- Redesign internals (cryptographic schemes, communication protocol) of the Password Manager to support secure items sharing
- Implemented automated bindings generation for the target platforms using the libclang
- Setting up CI/CD processes based on GitHub Actions, fully automatic and one-click publishing and deployment
- Technical R&D in the privacy and security fields

Tech stack: C++17 ∙ C# ∙ JS/TS ∙ Python ∙ Emscripten ∙ WebAssembly ∙ SQLite ∙ OpenSSL ∙ Sodium ∙ Clang ∙ CMake ∙ GitHub Actions ∙ Docker

Tech Lead

- Implementing a cross-platform desktop application using Electron as a rendering front-end part and .NET as a core back-end part
- Designing a secure inter-process communication protocol based on the Noise protocol framework
- Simplifying the sign-in process to the Password Manager through improving the general cryptographic scheme while keeping the same level of security
- Took part in overall technical system review made by external partners
- Implementing deployment process to Microsoft Store and Apple App Store
- Designing the A/B testing process

Tech stack: C# ∙ JS/TS ∙ Electron ∙ .NET Core ∙ .NET 5 ∙ Blazor ∙ Xamarin ∙ Mono ∙ Noise

Senior Software Engineer

Clario Tech

- Implemented a generic VPN framework that works both on iOS and macOS with the ability to use different VPN implementations like system-default and custom ones (OpenVPN or strongSwan)
- Designed malware detection engine based on Yara pattern-matching rules and Endpoint Security framework

Tech stack: C ∙ Objective-C ∙ Swift ∙ Core Data ∙ Endpoint Security ∙ Network Extension ∙ Yara ∙ OpenVPN ∙ strongSwan

FigLeaf App

- Collaborated in the design and implementation of a complex machine learning system for classifying input fields and forms on the web page
- Implementation of custom tools for data collecting and markup, components for distributed data processing, models training, testing, and deploying to production
- Took part in the system specification for patent registration
- Worked on technical research and prototyping new features

Tech stack: JS/TS ∙ Node.js ∙ MongoDB ∙ Python ∙ NumPy ∙ Pandas ∙ Keras ∙ Scikit-learn ∙ AutoML ∙ GitLab CI

R&D Software Engineer

Kromtech

- Worked on products such as MacKeeper, MegaBackup, and Chargeberry for macOS, and TrackMyMac, FigLeaf for iOS
- Took part in the development of a new privacy solution for macOS and iOS platforms, and browser extensions for Chrome, Safari and Firefox
- Implemented Action and Network extensions for iOS application
- Implemented a generic networking framework for communication with the back-end APIs
- Identified a problem with the stability of applications on old macOS 10.6+ versions and successfully solved it by increasing crash-free rate up to 99.8%
- Engaged in the design of a complex interprocess communication system
- Initiated a process of covering product features with unit tests
- Worked on CPU and memory optimizations
- Set up CI/CD environment and pipelines

Tech stack: Objective-C ∙ Swift ∙ AppKit ∙ UIKit ∙ Core Data ∙ Realm ∙ RxSwift ∙ RxCocoa ∙ GitLab CI

iOS & macOS Software Engineer 

I’m a software engineer who is fond of solving complex engineering problems using the right tools and technologies. I have diverse experience working on desktop and mobile applications, cross-platform libraries, and frameworks. I’m also interested in applying machine learning techniques for appropriate problems, cryptography, distributed and high-load systems. It all allows me to find solutions for business problems, help product growth, and make users happy. A growth mindset forces me constantly strive to learn something new and look for ways to better myself.

taplio

The Battle

Roman Marshevskyi

Oleksandr Chaikovskyi

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