I joined the top 3% to be able to work on amazing projects while striking the right work-life balance with 100% home (or surf) office.

https://www.toptal.com/resume/andrej-gajdos

Software Engineer

Built company's fully responsive website.
Built customizable UI components used across multiple projects.
Built functional prototype of funds management and payments system in exchange platform.

React Developer

Helped deliver a React Native project used for managing fitness studios.
Fixed various bugs and issues in the project.
Optimized the project for the Android platform.

Designed and built a functional prototype of event management platform for managing swimming teams and swimming competitions.
Designed a new user interface based on customer’s prototypes.
Built a functional prototype from scratch as a single page application.

- Designed and built an interactive podcast platform.
- Podcasters can upload audio files and add 'spots' to specific moments in their podcasts, which can be anything from links, to social media posts, to other videos or images.
Listeners are engaged with content, such as social media posts or preview of external web pages.
- Built a Single Page App from scratch with a complex user interface, including user interactions and animations using React.js, Redux, D3.js, Webpack, SVG, HTML5 Audio.
- Designed and developed a RESTful API server using Heroku, Amazon S3, Node.js, Koa, PostgreSQL and integration with Twitter API.

Technologies: Heroku, Amazon S3, PostgreSQL, JavaScript, Node.js, Koa, Objection.js, Knex.js, React.js, Redux, D3.js, SVG, Webpack, Babel, Twitter API

Principal Software Engineer

- Present and demonstrate products to potential customers from all over the world
- Demonstrate products’ features to developer teams and how to use them in the development process with a specific workflow, environment and toolset
- Help sales associates close deals by presenting our products in specific use-cases
- Train sales associates in effectively presenting and selling tools to developer teams and managers
- Assist customers with installation, troubleshoot, and provide customer service for configuration issues

Pre-sales Engineer


- Implemented new features and fixed bugs in enterprise applications used for data quality management, rewrote UI components to modern technologies
- Designed and implemented the front-end of interactive application for customer data management
- Designed and implemented server-to-sever communication and server push in GWT application

Technologies: Java, JavaScript, ES6, React.js, Flux, Immutable.js, Backbone.js, jQuery, Bootstrap, SCSS, Webpack, Gulp, Babel, D3.js, JSP, JSTL, JMS, ActiveMQ and Errai


- Analysed, designed and implemented solutions for gathering and processing structured and unstructured data from social networks and various other sources
- Designed and implemented module for building and visualisation of social network 

Technologies: Java, JavaScript, Liferay, Spring MVC, Maven, JSP, JSTL, jQuery, Bootstrap, D3.js, Jung, OrietDB, YouTube and Twitter API’s

Java Developer

- Responsible for execution and results analysis of both manual and automated tests
- Developed and maintained whole test infrastructure with automated tests
- Designed test cases, wrote documentation and reported issues
- Used JavaScript, Python, Ruby languages and Squish tool

Software Tester

The first OOP Language I learnt was Java. I have experience with back-end development in Node.js and Java EE. I have been, however, using javascript for 5+ years. I have developed mainly enterprise applications and I have experience with developing asynchronous messaging in JMS. I use Node.js, React.js, Redux, ES6, Webpack, Twitter Bootstrap and others to develop full stack applications.

I have experience with various front-end frameworks and JavaScript libraries. I have more than two years experience building complex front-ends of enterprise, dashboard and single page applications. I use npm for managing packages and devependencies and Webpack for bundling modules.

I have over six years of experience developing web applications with JavaScript and jQuery. I have experience with various JavaScript libraries such as ES6, React.js, Flux, Redux, Immutable.js, Backbone.js, Webpack, Gulp, D3.js, and others.

I have over six years of experience developing web applications. I have experience with customizing Wordpress themes and developing dashboards, visualisations of enterprise applications.

I have more than two years experience developing in React.js, Flux/Redux, Immutable.js, ES6, Webpack. I integrated various libraries in React.js applications including Twitter Bootstrap, D3.js, jQuery and various jQuery plugins.

I designed and developed a RESTful API server using Heroku, Amazon S3, Node.js, Koa, PostgreSQL and integration with Twitter API for interactive podcast platform.

I developed interactive visualization of social network in D3.js, jQuery and Twitter Bootstrap. I also developed a number of charts in D3.js, C3.js and FusionCharts.

Full-stack Web Developer ● Technology Consultant

Andrej Gajdos

My website & freelance software development blog. Built with Wordpress & JavaScript.

andrejgajdos.com

Blazing fast static website built with React & Gatsby. All pages are fully responsive and optimised for mobile viewing.

Nash

Event management platform for managing swimming teams and swimming competitions. I designed a new user interface based on customer’s prototypes and built a functional prototype.

FastSwims

An interactive podcast platform:

- Podcasters upload their audio and add 5-20 spots to their podcasts
- These spots can be anything from links, to social media posts, to other videos or images
- Listeners can listen and comment on these specific spots

SayCaster

Neo-transfer allows you to log in with a private key, see balance, and transfer NEO or GAS within TestNet. The project is based on JS SDK for NEO blockchain.

Neo Transfer

A newsfeed for events on cryptogoods with a single, responsive page.

Newsfeed Cryptogoods

User authentication in a single page application with Node, React, Redux and Koa combined with Passport.

Authenticating Users in SPA using Node, Passport, React and Redux 

jQuery DataTables plugin for rendering nested data tables in rows. Inner tables are independent of the data and layout from the outer table.

Nested Datatables

Webpack configuration to bundle ES6, React, Sass, and Bootstrap for production and development.

Webpack Setup for ES6, React, Sass, and Bootstrap

A workflow which converts SVG sprite into PNG images utilizing Gulp.

SVG Sprite into PNG

Implementation of server push messages from server to client in GWT application with Errai framework.

Server Push in GWT Application with Errai

A Liferay portlet to visualize a social network as a directed multigraph. Jung library is used for building the multigraph, which is stored in OrientDB. Visualization and other components are built in D3.js and Bootstrap.

Social Graph

A basic personal calendar application with two view modes (week/month). The application generates log files and uses a MySQL database. The presentation layer is built in Swing and SwingWorker. Connections to the database are developed in JDBC. The project contains simple JSP pages for viewing a list of events and their detailed information. 

Personal Calendar

Some insurance brokers have a list of insurances and clients in XLS format and need to generate various contracts based on a contract template in DOC and DOCx format. The user can set up a database (XLS or XLSx) and required columns, which will be parsed into the contract. The application has a database of insurance in SQLite. The main window contains a list of clients with detailed information, where the user can instantly search clients, add required information (date, overpayment, insurance from database), choose contract templates, and generate a contract (DOC or DOCx) for the client. The UI is built in WPF and ADO.NET is used for parsing data from a Microsoft Excel file.

Personal details

Andrej G.

Summary

Technical skills

Work Experience

Personal Projects