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Kristijan J.

Croatia

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About Me

An enthusiastic Mobile Software Engineer who specializes in writing both UI and app architecture for Android mobile apps. I have ample experience building large and security sensitive applications, creating and optimizing app architecture for best performance, and implementing app features based on design. As a developer, I enjoy taking up new challenges that test my skills and reflect my profession ethos.

Workflow

Git

Other

Java Android Kotlin

Work history

UpStack

Senior Software Engineer

2018 - Present (7 years)

Remote

Creating and developing innovative software solutions for clients across a broad range of industries.

Java Kotlin Android Git

Infinum

Android Team Lead/Android Developer

2014 - 2017 (3 years)

Zagreb, Croatia

Produced clean codes for a set of mobile banking products with high security through unit tests, automation and code reviews.
Ensured smooth integration with client backend services using RESTful APIs to deliver a great mobile user experience that is super fast for end users.
Wrote the mHPB application which won 2 country awards for best tech solution in 2016 and 2017.

Android Rest API Jenkins Circle CI

Interactive 1 Zagreb

Software developer

2012 - 2014 (2 years)

Zagreb, Croatia

Worked with other IT staff to set and develop technical specifications for Android development within the company.
Developed and implemented software features by writing bug free and maintainable application codes.
Set the standards for Android development in the company through planning and implementing server upgrades, maintenance fixes and vendor-supplied patches.

Java PHP Android

Superius Ltd

Software Developer

2010 - 2012 (2 years)

Pula, Croatia

Created new database objects by migrating reporting solutions from MS SQL report builder to a PostgreSQL database with Pentaho BI.
Conducted software development activities for clients using SQL Server and other Microsoft oriented platforms, tools, and technologies.
Drove continuous improvements and efficiency in database administration and migration.

JavaScript Cordova MSSQL PostgreSQL

Showcase

Lead Android Developer, Infinum, mHPB – Croatian Postal bank

mHPB is a personal finance tool for mobile devices.
It offers 24/7 access to essential banking information.
The application aims to reduce costs associated with bank transactions.

Lead Android Developer, Infinum, Erste mBanking

Erste mBanking is Erste Bank's mobile banking service.
It enables customers to carry out financial transactions using smartphones.
The unified payment screen simplifies payments.

Lead Android Developer, Infinum outsourced by TamTam, Oxxio

An Android app for the Netherlands energy company Oxxio to track energy bills and spent energy.
The app supports both smart and traditional meters, catering to both customers and non-customers.
The app is designed for widespread use across Oxxio's network, regardless of customer status.

Lead Android Developer, Infinum outsourced by TamTam, Trucker

Trucker provides a real-time view of available parking spaces.
The app simplifies the process of finding free parking for truck drivers.
Trucker offers safety features like dangerous situation alerts and weather updates.

Lead Android developer, Infinum outsourced by TamTam, Pasta Maestro

The app facilitates cooking various Italian meals.
It includes recipes, fun facts, and stories to enhance the user experience.
The app offers a shopping list and direct supermarket purchasing options.

Education

Completed credits towards a bachelor's degree in Business Informatics

University of Juraj Dobrila, Faculty of Economics