Iurii Malchenko

Kyiv, Ukraine

Member since November 30, 2012

Iurii is a seasoned developer with a wealth of experience in the development of web front-ends and back-end systems. He has experience in group environments, and has written a large amount of code for a number of professional software solutions. He enjoys tackling seemingly "unsolvable" problems.

Iurii is now available for hire

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Portfolio

PINBank
Java Core, CDI, JPA, Servlets, JMS, ActionScript
Alt-M Technologies LLC
Java, OSGI, Java ME, PostgreSQL, MySQL, CouchDB, PHP, SMPP

Experience

SQL, 11 years
Amazon Web Services (AWS), 6 years
Functional Programming, 6 years
Scala, 6 years
Akka, 5 years
Elasticsearch, 3 years

Availability

Part-time

Preferred Environment

Linux, IntelliJ IDEA, Git

The most amazing...

...software I've built is a tool for mixing different Java ME apps into one multi-app with multitasking, allowing users to view multiple apps at once.

Employment

Senior Java Developer
PINBank
2011 - 2012
- Member of a team working to implement a complex web project. The project included a variety of user services that were made accessible through a single account to provide a unified, user-friendly experience.
- Contributed to the design and overall architecture/infrastructure of the project.
- Designed and implemented the JSON over HTTP protocol for client-server communication. This included CDI integration, rich options for access control, security, and routing.
- Included support for both for Java and ActionScript runtimes, dramatically boosting the productivity of both the Java and Flash teams.
- Developed a fully automated ActionScript code generator to build a facade for the protocol. This included service interfaces, client factories, configuration, data transfer objects, type-aware (de)serialization, error handling, and queuing.
- Optimized SQL code for complex queries.
- Worked in management and maintenance of the infrastructure for the distributed app servers. Initiated and completed the migration from GlassFish to JBossAS 7.
- Developed an extensive online storage system with filtering, access control, sharing, searching, and video/audio/image processing.
- Wrote a majority of the code for every subsection of the project, including storage, social networking, private data management, and the notification system. Designed APIs for nearly every service developed.
Technologies: Java Core, CDI, JPA, Servlets, JMS, ActionScript
Software Developer
Alt-M Technologies LLC
2005 - 2011
- Developed a platform for premium SMS services, including a backend system for SMS processing, provider/partner integration, billing, and reporting.
- Created a LAMP based mobile entertainment site.
- Created a mobile casino system with Java ME clients and a OSGI/PostgreSQL based backend.
- Designed a TV show platform, including server-side (OSGI/PostgreSQL) services for player-interaction via SMS, support for Java ME clients, a mobile website, and a manager’s web interface.
- Developed a service to enable customers to easily and reliably send SMS notifications. This involved a backend system (OSGI/PostgreSQL/CouchDB), integration with upstream SMPP-providers, message delivery and processing, scheduling, accounting, reporting, and a web based (JavaScript RIA) frontend for managing contacts and campaigns.
Technologies: Java, OSGI, Java ME, PostgreSQL, MySQL, CouchDB, PHP, SMPP

Experience

MULTiME (Development)
A worldwide-unique project that overcomes a major MIDP-1.0/MIDP-2.0 limitation that restricts the user to only running a single application (midlet) at a time. The project is a constructor for mixing several midlets into one - a “multi-midlet”, allowing for use of them simultaneously within an emulated multi-tasking environment.
SMS@Sender (Development)
An “internet-to-sms” messaging project with mobile/web clients.
BomberField (Development)
This is an online real-time multiplayer game that is currently under development.
WideUP (Development)
http://wideup.net
A multifunctional platform for the online business sector and private space.
youdrive (Development)
A driving-related Ukrainian site that is currently on hold.
View-First Java Web Framework (Other amazing things)
A view-first framework for Java that was inspired by Lift. It is based on Java Servlets and integrates easily with CDI. It has not been open-sourced yet. It is user-friendly and runs efficiently, needing just a few ms to generate 500KB responses with 16+ concurrent requests.
Advanced UI framework for Java ME (Other amazing things)
This is a Java ME framework that I've created and used to build a number of applications and games. It is not open-sourced and I have not continued to develop it since iPhone/Android have become relevant in the mobile market, but it is an elegant, efficient framework.

Skills

Languages
Scala, Java, SQL, JavaScript
Libraries/APIs
Slick, Java Collections, Circe, Scala.js, Stripe API, ObjectWeb ASM
Tools
IntelliJ IDEA, 2checkout, Eclipse, Nginx
Paradigms
Functional Programming, Concurrent Programming, Object-oriented Programming (OOP), Actor programming, Unit Testing
Misc
Java concurrency, Akka HTTP, Multithreading, Elasticsearch, JWT, Akka Streams, Parsers, Cats
Frameworks
Akka
Platforms
Amazon Web Services (AWS), Linux
Storage
MySQL, PostgreSQL

Education

Master's degree in Applied Mathematics and Computer Science
Taras Shevchenko National University of Kyiv - Kyiv
2003 - 2008

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