Gabriel Gircenko

Gabriel Gircenko

Android Senior Engineer
Reply rate:
-
Availability:
Full-time (40 hrs/wk)
Age:
33 years old
Location:
Zagreb, Grad Zagreb, Croatia
Experience:
6 years
Gabriel Gircenko, w ​ ww.gabrielgircenko.com​, Email: g ​-, Phone: - Summary: Senior Android Engineer with 6 years of experience in managing, leading and developing. Mission: "CEOs should concentrate on business, I'll take care of Android." I'm a reliable, ambitious and extroverted engineer always pushing companies' development to the next level. I aspire to widen my skills in a highly driven environment. Check out my portfolio at ​www.gabrielgircenko.com​ and other sources: Knowledge and Skills: I’m in top 5% of Android design implementation developers, know a lot about UX and best practices all over the platform. I developed and published few apps on my own as well with bigger teams, from apps with 200 users to millions of users all over the globe. I prefer Kotlin over Java and Flutter over Kotlin. Lately, I’ve been immersing myself into AR/VR, 3D and even 4D projects. In addition to my Android development skills, I have very good active speaking and writing skills in English, effective and direct communication, wide and strong knowledge of online tools like GitHub, JIRA, Trello, etc. I know a lot, but not everything. And in mastery, you always have space to grow. Working Experience: Toptal N ​ OVEMBER 2016. – TODAY ANDROID SENIOR ENGINEER | REMOTE ● Worked with 3 clients so far. Here are the details about the projects: o First app built with ArCore ▪ I was working side to side with another Android Developer to replace the previous developer ▪ The biggest challenge was to successfully interact with object in 3D space ● I’ve built custom controllers which utilize only a drag gesture ● This ended up in being more intuitive than built in and constraining controllers and I would dare to say, more intuitive than iOS ▪ The second biggest challenge that I did was to animate multiple elements moving on click. At the beginning of the project that seemed impossible with my limited knowledge of the technology, but through the 1st task I figured a lot about ARCore. When this task was due, it was actually really easy to make it work like envisioned. o Idyllic Code Review​ - identity app ▪ This was by far the most interesting code review I’ve done so far ▪ The client was heavily concerned with the security of the user data 1 Gabriel Gircenko, w ​ ww.gabrielgircenko.com​, Email: g ​-, Phone: - ▪ ● I was familiar with security guidelines of Android platform but with this project made my knowledge much more solid ▪ The client was very happy with the extensive details that I’ve documented in a simple Google Doc file o Roadstar Driver​ and ​Mechanic​ apps - Uber for truck drivers in need of mechanics ▪ Have been responsible for the full development of 2 Android apps and 1 Ionic app built for both Android and iOS. ▪ Worked on real-time push notifications with Firebase. ▪ Implemented location services and working with Google Maps. ▪ Presented and interacted with 3D models. ▪ Captured images, uploaded, and presented them inside the app. ▪ Technologies used: Android, REST, GPS, 3D (libgdx), Ionic, Firebase Check the profile Ateatar ​ FEBRUARY 2019. – TODAY UNITY ENGINEER | REMOTE ● This is an NGO’s VR startup project at the very early stage. o It’s a team of 7 creative and capable people. It consists of a screenwriter, 3 actors, 2 designers and me as a developer o I’m in charge of building the whole experience from scratch o This VR experience will be exported for Gear VR and Oculus GO and will be hosted on Oculus Store o The most exciting part of the project is interacting within 4D environment Epigraph ​JULY 2014. – TODAY OWNER, FOUNDER AND ANDROID CONSULTANT ● ● ● ● Founded a company for gaining more reliable job opportunities. Learned a lot about the market and business of start-ups as well as established companies. At one point we had 2 full-time Android developers, but personally I wasn’t ready for the amount of work the CEO position in an agency demands. Check our website. Digital Media Experience (NDA) ​OCTOBER 2015. – OCTOBER 2016. ANDROID SENIOR ENGINEER | REMOTE ● ● ● Developed 2 premium video content streaming apps with millions of users and the library for them. The team is full of awesome and skilled people. Proactively made improvement suggestions from which 90% were adopted. We had UI issues on a weekly base, I suggested and fixed those issues by making more robust code. 2 Gabriel Gircenko, w ​ ww.gabrielgircenko.com​, Email: g ​-, Phone: - ● ● ● Learned about VIPER, architecture variation of MVP, with Mockito and PowerMockito tests. None of us 3 had any “main” part on which we work on but, whatever comes as an issue assigned to me, I do it. Caching, bugs, UI, memory & code improvements, sending tracking data, writing tests, changing models according to JSON responses, etc. Check the website. App For Pregnant Mothers (NDA) ​SEPTEMBER 2014. – SEPTEMBER 2015. ANDROID ENGINEER | REMOTE ● ● ● ● #1 lifestyle app in the country of client’s origin. I was the lead Android Engineer and took the re-design and built the app from scratch to publish. One of the most interesting and complex designs I’ve implemented so far. Technologies: Android Studio, Crashlytics, Material Design, REST UpWork O ​ CTOBER 2013. – SEPTEMBER 2015. ANDROID FREELANCING ENGINEER | REMOTE ● ● ● ● ● Helped over on 15+ clients to move their software to the next level. I was reviewing code, giving suggestions and plugging into existing code to make revisions and finally publishing. Making revisions after other developers is always the most challenging, because freelancers rarely do a code by SOLID principles. But by doing that, I extracted the best code practices and learned on other’s mistakes. Developed in KANBAN, SPRINT & SCRUM setups. Some of the projects I worked on: o Xpatpub – pub-crawling app for Korean test market ▪ We’ve published it successfully to Google Play Store and I continued working on the revisions until the client paused the project indefinitely. o PlayerFM​ – podcast app ▪ I did my tasks although I was not able to finish all that had been planned. The project was too complex, code made by just one coder and I couldn’t plug and code fast enough. o Conference app for Dubai ▪ The client wanted a completion of 70% finished app on which 4 freelancers, one after another, worked before they bailed. The code was in the worst condition I ever saw and the client had a very tight schedule. The client delivered a fully developed app on time. Check my portfolio. Taxi Central ​APRIL 2013. – OCTOBER 2013. 3 Gabriel Gircenko, w ​ ww.gabrielgircenko.com​, Email: g ​-, Phone: - ANDROID LEAD ENGINEER ● ● ● I had done architecture, documentation, full development, partial design, testing, publishing and promoting. Being my first published app I learned a lot including Google maps API, location, fragments, custom UX and UI design, lists, etc. You can check the app ​here​. Technology: Kotlin, Java, Android, Flutter, VR, AR, 3D, 4D, Android Studio, Unity, Android SDK, REST, JSON, XML, API, SQL, SQLite, Material Design, Parse, Firebase, JUnit, Mockito, PowerMockito, Gradle, Eclipse IDE, Git, GitLab, GitHub, Gradle, Ionic, HTML, JavaScript, Python, CSS, PHP, iOS, Swift. Education: Faculty of Electric Engineering and Computing (FER) ​SEPTEMBER 2010. – JUNE 2013. DROPPED 1. Technical School Tesla S​ EPTEMBER 2005. – JUNE 2010. MATRICULATED WITH A Other: Recommendations are available on request. In my spare time, I ride a mountain bike, play drums and do various recreational and extreme sports like surfing, snowboarding, etc. 4
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