Zoreslav K.

Zoreslav K.

Senior Software Engineer

Kiev, Ukraine
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About Me

I am an experienced iOS Developer with 15+ years of professional expertise in the iteration of different software solutions with well-written interfaces, smooth and attractive animations and clever controls that have a lasting impact on users. I am also proficient in the creation of websites, indie games, 3D rendering tools, and biometric software using the right skills and tools for the delivery of high-quality solutions for clients.

Portfolio

iOS Developer/Tech Lead - Kasta iOS
iOS Developer/Tech Lead - Kasta iOS

Kasta (formerly modnaKasta) is the number 1 online store in the "clothing and footwear" segment in Ukraine. Acted as technical lead on a 6 person mobile development team; handling the iOS app architecture and development, communication with marketing, product teams and other technical teams on the project.

iOS Developer - Coin.ph
iOS Developer - Coin.ph

Coins.ph offers users the easiest way to send money, buy load, pay bills, buy game credits and buy bitcoin (BTC), Ethereum (ETH), Bitcoin Cash (BCH) and Ripple (XRP) with no bank account or credit card needed. Created and maintained the iOS wallet/marketplace app for coins.ph

iOS Developer - Lapka Personal Environment Monitor
iOS Developer - Lapka Personal Environment Monitor

Lapka is a tiny, beautifully designed personal environment monitor that connects to the phone of users to measure, collect and analyze the hidden qualities of their surroundings. Developed some UI components, global map screen and social features for the app.

Work history

UpStack
UpStack
iOS Developer
2019 - Present (3 years)
Remote
  • Creating and developing innovative software solutions for clients across a broad range of industries.

Kasta
Kasta
Mobile Tech Lead
2016 - 2018 (2 years)
Kiev, Ukraine
  • Led a team of 6 developers on all mobile developments and worked closely with business, UX, design and back-end teams on projects.

  • Designed app architecture and established best practices on the project for Kasta.

  • Provided technical leadership for app wide analytics, A/B testing, new marketing tools and channels for the client.

Coins.ph
Coins.ph
iOS Developer
2014 - 2016 (2 years)
Manila, Philippines
  • Contributed to the design and development of Coin's iOS application.

  • Offered technical expertise for the development of the iOS wallet and marketplace app.

  • Worked on the addition of every feature and service available on coin.ph

Strelka Institute for Media, Architecture and Design
Strelka Institute for Media, Architecture and Design
iOS Developer
2014 - 2014
Moscow, Russia (Remote)
  • Built the official iOS app for the Fair Enough pavilion as Russia's contribution to the 2014 Venice Architecture Biennale.

  • Offered technical expertise for the testing of software to ensure proper and efficient execution and adherence to the app's business and technical requirements.

  • Successfully shipped an efficient, secure, highly available, and maintainable iOS solution that enhances user satisfaction.

Gipis
Gipis
iOS Developer
2014 - 2014
Moscow, Russia (Remote)
  • Facilitated the implementation of new and improved run tracking algorithms for Gipis.

  • Worked on the onboarding, plan customization and tracker UI reimplementation tasks for the client.

  • Introduced a cleaner design, better UX with less bugs for new GPS tracking algorithms with accurate tracking using less battery resources.

Tricky Eyes
Tricky Eyes
iOS Developer
2013 - 2013
Moscow, Russia (Remote)
  • Regularly wrote clean, concise iOS applications that are stable, extensible and unit-tested.

  • Implemented rich full-screen animations running smoothily even on legacy hardware; maintaining a relatively small binary size.

  • Successfully programmed the solution with a fully custom UI and a nice animated in-app store.

RIDERS
RIDERS
iOS Developer
2013 - 2014 (1 year)
St. Petersburg, Russia (Remote)
  • Created the camera/trick recording UI, added social network integrations and improved the user comments UI for RIDERS.

  • Effectively shipped a lot of code and new features on projects with tight timelines.

  • Diagnosed complex issues, evaluated, recommended and executed the best solutions for clients.

Lapka Inc
Lapka Inc
iOS Developer
2013 - 2013
San Francisco, United States (Remote)
  • Participated in feature development projects for Lapka's iOS app.

  • Wrote the GPUImage-based real-time video filtering code for the Lapka BAM app UI.

  • Efficiently developed some critical features for the Personal Environment Monitor app (engagement – map view, sharing) and worked on an innovative UI for the Blood Alcohol Monitor app.

Uploadcare
Uploadcare
iOS Developer
2012 - 2013 (1 year)
St. Petersburg, Russia (Remote)
  • Regularly designed and developed iOS integration libraries and iOS widgets on projects for clients.

  • Efficiently engineered a media upload widget that allows users to pick, manipulate and upload images and videos from a number of sources (Dropbox, Facebook, Instagram and Camera Roll).

  • Oversaw the easy integration of Uploadcare services into different iOS apps.

EDAPS Consortium / "VTI" PrJSC
EDAPS Consortium / "VTI" PrJSC
Development Team Lead
2008 - 2012 (4 years)
Kiev, Ukraine
  • Managed a team of 4 developers in developing biometric and secure document technologies, including the software suite used to produce INTERPOL Travel Documents .

  • Engineered a facial detection and automatic camera adjustment features for the mobile passport enrollment hardware on the project.

  • Provided troubleshooting expertise for complex technical issues requiring rapid resolution on the biometric/secured document technologies project.

mydeco
mydeco
Senior Developer (Visualization Team)
2007 - 2008 (1 year)
Kiev/London, Ukraine/United Kingdom
  • Led 3D server rendering and tools development on projects for mydeco.

  • Created a SIMD-accelerated multi-threaded ambient occlusions ray tracer for the client.

  • Worked on the the implementation of 3D renderings and subsequent implementations on the backend and oversaw communication with Mental Images (now NVIDIA Advanced Rendering Center) team.

Electronic Entertainment Studio
Electronic Entertainment Studio
C++ Developer
2004 - 2007 (3 years)
Novosibirsk, Russia
  • Worked on the development of Urban Legend; an isometric turn-based strategy with a game editor and other tools for gameplay.

  • Created a performant Direct3D-based game engine from scratch for the client.

  • Successfully managed the game's technology, from the graphics engine, to LUA-powered scripting and AI.

Education