Rahul Devaskar

Perth, Australia

Member since July 30, 2014

Rahul is a professional software engineer with leadership experience and expertise in building full-stack Node.js applications and streaming data analytics solutions. He has designed and developed an innovative context-aware advertising platform using Node.js and machine learning techniques. This platform was acquired by a Silicon Valley-based data analytics company.

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Portfolio

Primedice
Node.js, Redis, PostgreSQL, Socket.io
RBD (via Toptal)
AngularJS, Node.js, MongoDB
Gogogab (via Toptal)
Node.js, AngularJS

Experience

JavaScript, 8 years
AngularJS, 3 years
Redux, 1 year
Node.js, 6 years
MongoDB, 2 years
Swift, 1 year
React.js, 1 year
Functional programming, 5 years

Availability

Part-time

Preferred Environment

Mac OS X, Ubuntu

The most amazing...

...piece of software I have built is a complex event processing engine in Node.js for streaming data analysis. The engine is patent pending.

Employment

Node.js API Server Developer
Primedice
2015 - 2016
- Built a Node.js based API platform.
- Built a highly scalable back-end with Redis and PostgreSQL.
- Designed and built a secured API for Blackjack, Minesweeper, Plinko, and Bustabit games.
- Built a Bitcoin deposit/withdraw API.
- Designed and built a chat server using Socket.io.
Technologies: Node.js, Redis, PostgreSQL, Socket.io
Software Engineer
RBD (via Toptal)
2015 - 2015
- Built entire link sharing app (Theslinkapp.com) from scratch.
- Developed an intelligent post creation form with fast auto-complete.
- Created a Node.js-based API server to serve website and apps.
- Programmed a responsive web app with social network features such as post, comment, and follow.
- Wrote a real-time chat and comments engine.
Technologies: AngularJS, Node.js, MongoDB
Full-stack Developer
Gogogab (via Toptal)
2015 - 2015
- Built a real-time event management system.
- Built a scalable API server using node.js.
- Built an AngularJS-based web app to manage events.
Technologies: Node.js, AngularJS
CEO
Aponomy
2014 - 2015
- Built an app (Aponomy.com.au/fuelmate) for Western Australia to get best fuel prices.
Technologies: Ionic, RSS, iOS, Android
Node.js Developer
Coinucopia (via Toptal)
2014 - 2015
- Created software for Bitcoin ATM machine.
- Built an API server for Bitcoin transactions.
- Created a node.js based serialport communicator for camera and bill validator hardware.
- Created an AngularJS based web application to display real-time Bitcoin price and stats.
- Created infrastructure for AML/KYC of Bitcoin buyers.
Technologies: AngularJS, Node.js, Bitcoin, MongoDB
Software Innovator
Mobius Innovations
2012 - 2014
- Designed and developed a context-aware mobile advertising platform using machine learning and pattern recognition techniques.
- Built a highly scalable Node.js-based complex event processing engine for pattern matching in streaming sensor data such as location traces, bank transactions, weather, and social media events.
- Created an iOS and Android library that can be added to any mobile app to serve context-aware advertisements inside apps.
- Developed a data mining engine which provides semantic ontology-based mining of linked open data sources such as OpenStreetMap, DBpedia and Freebase. It intelligently aligns the data from different sources and maintains a distributed triple data store.
- Programmed an Angular.js-based front-end portal to design and deploy rules for pattern matching.
Technologies: Node.js, AngularJS, MongoDB, Redis, Machine learning
Founder and CTO
AXS Solutions
2010 - 2012
- Founded a company for mobile payments facilitation.
- Designed and developed the entire Node.js-based push notification platform for mobile payments receipts.
- Developed a Node.js and Socket.io-based front-end to send notifications to mobile apps.
- Built an Android app for mobile payments.
- Created an API for integrating the mobile payments feature in third-party apps.
Technologies: Node.js, Redis, iOS, Push notifications
IT Analyst
TATA Consultancy Service
2005 - 2012
- Built a system size estimator to predict the future hardware requirements using the current load on the server.
- Built a SOAP application server to expose legacy services (written in C and COBOL) as web services using SOAP 1.2 protocol.
- Developed a testing framework for SOAP server integration testing.
- Built a WSDL generator in Java to auto-create WSDL for legacy services.
- Led the team of five developers and three testers.
Technologies: C, SOAP, Web services
Founder and CTO
Blackbull Investment Company
2008 - 2010
- Designed and built a stock market technical analysis web app that shows beautiful charts for various technical analysis indicators such as MACD, TRIX, MA, and Stochastics.
- Built a web-based portfolio manager to track companies and set buy/sell triggers for stock prices.
- Built an SMS-based notification system to send buy/sell trigger notifications to mobile phones.
- Maintained a blog to explain technical analysis using stock market indicators.
- Built a real-time stock ticker service.
Technologies: jQuery, PHP

Experience

Alchemist (Development)
Alchemist is a Node.js-based complex event processing framework. Alchemist matches patterns in various sensor data coming from mobile systems, bank transactions, and social media.
Fuelmate Android App (Other amazing things)
https://play.google.com/store/apps/details?id=au.com.aponomy.android.fuelmate&hl=en
An Android app built using AngularJS and Ionic frameworks. Get the best fuel prices in Western Australia.
Context Aware Apps and Complex Event Processing (Other amazing things)
https://www.toptal.com/mobile/context-aware-apps-and-complex-event-processing
A blog post about context-aware mobile development.
Fuelmate for iOS (Other amazing things)
https://itunes.apple.com/us/app/fuelmate/id956454948
A mobile app to get the best fuel prices in Western Australia.
Complete Authentication Solution for Web Apps (Development)
http://auth.apostopher.com
A reusable module to instantly add a feature-rich user management system to any web app. It was built as a stand-alone authentication server for user management and a front-end demo was built using AngularJS
Chrome Browser Extension (Development)
https://chrome.google.com/webstore/detail/slink/bcdakccpnpaipcpbefjoibaehdmmhedf
A chrome extension to quickly share links from the browser. Share links with friends, or share it on desktop and view it on mobile!
Context Aware Applications and Complex Event Processing Architecture (Publication)
https://www.toptal.com/mobile/context-aware-apps-and-complex-event-processing
Since almost all smartphones today are equipped with location sensors, motion sensors, bluetooth, and wifi, today's mobile apps can use context awareness to dramatically increase their capabilities and value. This article walks you through building a context aware app that employs complex event processing.
Toptal Mentor
Rahul is a mentor in the Toptal Global Mentor’s Program. This program is a partnership between Toptal and General Assembly to provide high quality mentorship for students from minority and low income backgrounds who are looking to begin their careers as professional software engineers. Rahul shows commitment to diversity in tech by mentoring a General Assembly student every week for a year, covering everything from coding tips and tricks to advice on making it in the industry.

Skills

Languages
CoffeeScript, JavaScript, HTML5, Swift, CSS
Frameworks
Express, Redux, AngularJS, Ionic, React Native, Apache Cordova
Libraries/APIs
LeafletJS, Node.js, Lo-Dash, React.js, Socket.IO
Tools
Chrome Developer Tools, Git, Sublime Text 3, Adobe Photoshop, Node Inspector, Adobe Illustrator, Xcode, Mongoose
Platforms
Mac OS X, Amazon EC2, iOS, Ubuntu
Storage
Redis, MongoDB, CartoDB
Paradigms
Test-driven Development (TDD), Functional programming
Misc
Machine Learning

Education

Bachelor of Engineering degree in Electrical Engineering
University Of Mumbai - Mumbai, India
2001 - 2005

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