Олексій

Oleksii Shakhin, Software Engineer
Khmelnytskyi, Khmelnytskyi Oblast, Ukraine, [открыть контакты](см. выше в блоке «контактная информация»)

PROFILE Product-focused JavaScript engineer with 10 years' experience delivering scalable web and mobile
applications. Expert in JavaScript/TypeScript, React/React Native, Angular, Node.js, Redux, Three.js,
GraphQL and cloud platforms (GCP, AWS). Proven ability to own end-to-end features in complex domains
— 2D/3D graphics, fabrication management, telehealth and financial analytics — and to collaborate
effectively across teams while driving performance and maintainability.

E M P L O Y M E N T H I S TO RY

Aug 2016 — Jun 2018 Javascript Frontend Developer, OmnieSoft Khmelnytskyi
Responsible for developing Front End Application with Angular for Restful server based on microservice
architecture. Making real-time application with WebSockets and Firebase Cloud Messaging. Developing
Angular templates from pure HTML-pages. Developing Custom Structural Directives and Dynamic
Components. Had experience to work on project as single developer. Was responsible for full systems
development life cycle. Had a several projects where was responsible for Systems analysis, requirements
definition, system design, developing, integration and testing Technologies/environment: JavaScript,
TypeScript, Angular, CSS, HTML, Firebase, WebSocket, Rxjs.

Jul 2018 — Mar 2021 Javascript Fullstack Developer, AMC Bridge Khmelnytskyi
Had 2 long-term projects related to 2d and 3d computer graphics Project #1: The development of
cloud web application that allows user to create precise floor plans with following metrics calculation
according to common standards in real estate industry. The application provides user an intuitive and
simple way to outline rentable and non-rentable spaces over existing technical floor drawing. The original
drawing is used for anchoring outlining element in order to achieve the maximum precision of metrics
calculation. Worked on designing and implementation of such features from scratch: management of
expired sessions, management of commands sequence for the scenario, draw lines of fixed length,
copy/paste geometries between different browsers' tabs, mapping of models, relation between scenario
and floor plan. Was involved into work with client-side core, server-side core, UI, unit-tests. Fixed
bugs. Technologies/environment: JavaScript, TypeScript, ReactJS, Node.js, Amazon S3, ODA Web SDK,
Visualize.js, Redux, Bitbucket, Git. Project #2: Was part of the team that worked on a web-application that
allows to manage fabrication process within different size model shops. Participated in the development
of the front-end part from scratch based on Meteor with wide usage of React and Three.js. Worked on a
3D viewer, implementing the following functions: animation of transformation of 3D parts, highlighting
on the model of places where there may be potential problems with printing, management of several
versions of the part, as well as 3D visualization of the difference between these versions of this part,
implemented a number of tools for visual information about the part: tool for measuring the wall thickness,
measuring the distances between points on the surface, analyzing circular edges and convex /concave
faces on the geometry, viewing the cross section of the part.I was involved in creating functionality
that allows you to visually annotate different parts of the 3D model and generate comments based on
them to the version of the model. Also created from scratch a module that calculates the total cost and
time required for printing based on the input 3D model and parameters of the 3D printer and additional
assets used in the pre- or post-processing. Engaged in the implementation of a flexible system for
setting up fabrication flow for ordering 3D, controlling the printing process and delivery. On the backend
implemented management, validation and storage of data in the database related to the ordering, setting
up fabrication flow, communication system between customers and organizations (event notifications and
messages in the web application and via email). Technologies/environment: Meteor, JavaScript, React,
Three.js, Node.js, MongoDB, HTML, CSS, Less.

Apr 2021 — Aug 2021 Javascript Fullstack Developer, WDevs Kharkiv
Worked with Amwell company (formally know as American Well). My part of job was a development of
ecosystem of medical products for clinical employee and patients as well. Was responsible for various
products of the customer's company, which includes a RTC connection with a patient and a doctor,
management an appointment with comprehend calendar system, a mobile application working on Native
Script and so on.
Sept 2021 — Jul 2022 Javascript Frontend Developer, Team International Kharkiv
Was part of the team of developers who worked on cloud-based complex project for managing various
business-processes. Was responsible for developing rich, adaptive UI components, data exchange between
client and server, identifying, diagnosing, and fixing website problems, issues and bugs. Effetively
multitasked and worked well with internal and external teams. Helped to achieve a consistent look
and visual theme across the website by promoting uniform fonts, formatting, images, and layout.
Technologies/environment: JavaScript, Typescript, Angular, RxJs, Node.Js, WebScoket, Angular Material,
HTML, CSS, SCSS, Git.

Jul 2022 — Mar 2023 Javascript Frontend Developer, Aksiio
Worked on cloud-based system that specializes in finding malfunctions in train equipment. My
responsibilities consisted in the development, maintenance and improvement of the web interface for train
station workers that allowed the management of found faults. Also was responsible for separated interface
for admins , which allowed to monitor available equipment, sites e.t.c. Technologies/requirements:
Javascript, Typescript, React, Redux, WebSocket, SCSS, Git, Webpack.

Aug 2023 — May 2024 Javascript Fullstack Developer, Jama Ltd
Was part of the development team working on an existing web application focused on managing business
processes. Contributed to further development, feature expansion, maintenance, and optimization of
the platform. Designed and implemented new functionality across both frontend and backend layers.
Independently developed a cross-platform mobile application from scratch using React Native for Android
and iOS. Implemented core architecture, UI components, API integration, authentication flows, and
deployment pipelines. On the backend side, developed RESTful APIs using Node.js and Express, designed
and maintained MongoDB databases, and integrated various Google Cloud services to support scalability,
storage, and infrastructure needs. Ensured reliable data exchange between client and server, improved
performance, and resolved production issues. Technologies/environment: JavaScript, TypeScript, React,
React Native, Expo, Node.js, Express, MongoDB, Google Cloud Platform, REST API, HTML, CSS, Git.

Aug 2024 Javascript Frontend Developer, Liquidity
Was part of the development team working on a web application focused on financial analysis and
reporting, featuring an integrated AI-driven system for data insights and forecasting. Contributed to the
design and implementation of responsive, data-intensive user interfaces that enabled users to analyze
complex financial datasets in an intuitive and efficient way. Developed and maintained scalable frontend
architecture using React and Vue. Implemented dynamic dashboards, interactive charts, and advanced data
visualization components using Highcharts. Collaborated closely with backend and data teams to integrate
AI-generated insights, ensuring accurate data representation and smooth client–server communication.
Optimized performance of large datasets, improved application responsiveness, and maintained high code
quality through reusable components and state management best practices. Participated in feature planning,
UI/UX improvements, and cross-team coordination to deliver consistent and reliable product updates.
Technologies/environment: JavaScript, TypeScript, React, Redux, Highcharts, GraphQL, HTML, CSS,
SCSS, Git, Storybook, Jest, Vue

E D U C AT I O N

Sept 2014 — Dec 2019 Master Degree, Khmelnitsky National University Khmelnytskyi

SKILLS JavaScript C#
Typescript Python
ES6 Java
SQL Firebase
MongoDB AWS S3
jQuery Three.js
CSS/SCSS Redux/Redux Toolkit
HTML Vue
Node.js Google Cloud Platform
React GraphQL
Docker Storybook
Git Jest/Vitest
Rx.js Webpack
Angular 2+ npm/yarn
Express.js