Andrej Z.

Andrej Z.

Senior Android Developer

Osijek, Croatia
Hire Andrej Z. Hire Andrej Z. Hire Andrej Z.

About Me

Andrej is a Senior Android Developer with 8+ years of experience in Java, Kotlin, Retrofit, Jetpack, etc. He solves complex business problems through innovation and engineering best practices. Andrej brings mobile projects to life from concept to implementation, driving architecture and functionality decisions that produce clever solutions that perfect the clients' vision of projects.

Work history

UpStack
UpStack
Senior Android Developer
2020 - Present (5 years)
Remote
  • Creating and developing innovative software solutions for clients across a broad range of industries.

  • Participating in scrums consisting of cross-functional teams, both software and hardware.

  • Ensuring that features are being delivered efficiently and on time.

Cypher
Senior Android Developer
2016 - 2020 (4 years)
Remote
  • Build new Android apps and SDKs from the ground up on projects for clients; championing best practices and continuously improving the software delivery process.

  • Create tools and infrastructure to enable rapid iteration cycles on mobile; writing clean, maintainable code and handling tasks to develop, test, review, and ship new user-facing features on solutions.

  • Identify, troubleshoot, and resolve production bugs on several Android apps for clients.

Siemens
Siemens
Senior Java Developer
2014 - 2016 (2 years)
Osijek, Croatia
  • Designed robust architectural solutions for a monitoring and charging system used by large telecoms; implementing and maintaining features on project.

  • Liaised with the infrastructure and support teams to respond to and resolve complex issues on the system.

  • Worked on the delivery of technical deliverables/activities in line with Siemen's schedule; ensuring the quality of deliverables on the project.

StarNet Software
.NET Developer
2013 - 2014 (1 year)
  • Exercised strong decision-making skills in the design, implementation and maintenance of features across multiple applications for StarNet Software.

  • Executed and coordinated requirements processes for the implementation of various desktop applications including some CMS solutions.

  • Reviewed functional and technical requirements on projects; raising potential issues and participating in design discussions on projects.

Microsoft Innovation Center
Microsoft Innovation Center
.NET Intern
2011 - 2012 (1 year)
Varadzin, Croatia
  • Worked in a fast-paced Agile environment producing a variety of internal applications for MIC Varazdin.

  • Learned and implemented a broad range of business processes and needs in generating actionable software requirements on projects.

  • Maintained and troubleshot user issues and software issues.

Portfolio

Team Member RoboKiller
Team Member RoboKiller

RoboKiller is a spam call and robocall blocker that helps users filter and control incoming phone calls by automatically blocking and adding to the blacklist any unwanted caller. Implemented new features as a team member on the project, maintained features and fixed bugs on the app. It has 500k monthly and 40k daily active users.

Team Member - globaliD
Team Member - globaliD

The globaliD app allows users to privately and securely identify themselves to sites and apps. It collects verifications to build a user's reputation for the digital economy—without ever giving up control over their personal information. Worked on the payment feature of the app - facilitating safe and secure interactions with different service providers.

Team Lead - Real Estate App
Team Lead - Real Estate App

Worked on a B2B CMS solution for real estate agents using client requirements in preparing feature descriptions for the solution. Implemented and maintained key features and components.

Education

Bachelor's Degree, IT
Bachelor's Degree, IT
Faculty of Organization and Informatics - Croatia
2009 - 2013 (4 years)