English:
Upper Intermediate
Sergey B.
Vetted by YouTeam
Ukraine
UTC +02:00
Ukraine/Kyiv
English:
Upper Intermediate
Android developer
As android developer have experience with IOT, MQTT, android security, firebase, google maps, geolocation, custom views, embedded devices, deeplinks, WebSockets, reflection As security engineer successfully participated in big complicated projects like b-next, participated in code review, security audit, DOS checks Checked android security, reversed apk, modified java reversed code, modified smali code, worked with a bouncy castle.
Want to hire this engineer?
Check if Sergey is availableExpertise
Years of commercial development experience
7 years of experience
Core technologies
Other technologies
Project Highlights
ParkMobile
May `18 - Present
6 years
Park Mobile. Creating proof of concept application for parking. Working on existing application, integrating to customers team.
Responsibilities & achievements
Tasks performed: • Worked on planning and creating proof of concept • Succesfully created proof of concept • Participated in customers hackaton on the top of POC and took 3rd place. • Integrated into customer's android squad • Took part in delivering new features • Took part in refactoring application • Took part into converging several applications to one code base.
John lewis
Apr `18 - May `18
John Lewis rapido.
Responsibilities & achievements
Tasks performed: • Created architecture • Mentored colleagues • Coded review • Designed API • Created screens • Created business logic
R&F Pulse
Dec `17 - Mar `18
3 months
Hybrid android-web application.
Responsibilities & achievements
Tasks performed: • Worked with urban airship API • Debugged web views JS • Provided methods in Android code for JS • Provided data for web view
NYNJA
Apr `17 - Oct `17
6 months
NYNJA Cross platform communication application with MQTT server communications, lots of custom views and built in functionality, analog of Telegram. Contains: -chat -video and audio calls GEO location (Displaying sharing, path) -mobile number verification -recording audio (with histogram), video -making photos.
Responsibilities & achievements
Tasks performed: • Created communications with server (on bert encoding and MQTT protocol) • Created lots of custom views for complicated GUI • Found bug in N2O framework while building communication with server • Implemented voximplant (video/audio calls), found a few bugs there and reported them • Created GUI • Prevented few security holes • Provided builts for testing
B-Next
Jan `17 - Mar `17
2 months
B-Next Complicated economic software for monitoring Capital, markets, compliance, etc. winner of e-FX Award 2016 for best e-surveillance solution provider.
Responsibilities & achievements
Made full application audit by owasp asvs level 2: • Did architecture, design and theat modelling • Did authetication verification • Did session management • Created access control • Did internal security verification • Did cryptography
Plazus
Oct `16 - Jan `17
3 months
Plazus - template of your social network with automatic built, deploy, and market submit. - integrated social networks (VK, FB, twitter) - working with GPS - fixing memory leaks and optimizing memory usage - photo - deep links - push notifications - firebase
Responsibilities & achievements
Tasks performed: • Separated application into independent modules for automatical compile • Implemented application logic, UI and navigation • Responsible for providing test build and providing certificates for release builds • Solved problems with deeplinks in unusual protocol format in gmail
eCozy
Oct `15 - Oct `16
1 year
IOT project with hardware modules made for controlling temperature. - GPS, geolocation - google maps - google analytics - embedded devices -custom views. Project Role: Implementing business logic, Communicating with IOS and Server team for designing API, Testing hardware devices, Testing network on hardware devices (sniffing traffic with Wireshark).
Responsibilities & achievements
Tasks performed: • Implemented application logic • Implemented custom view (chart with a magnifier) • Tested embedded devices • Created test and release builds • Fixed bugs
Education
Higher education in Computer Science
Agency
400+
GMT-11
Remote
Want to hire this engineer?
Check if Sergey is available