YouTeam Logo

Summary

Expertise

Project Highlights

Education

Agency

SB

English:

Upper Intermediate

Sergey B.

vetted by Youteam

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 available

Expertise

Years of commercial development experience

7 years of experience

Core technologies

QA 5 years
Java 5 years
Android 5 years
Kotlin 5 years
Python 5 years

Other technologies

Basecamp
Eclipse
JIRA
Kotlin
MySQL
SQL
Android
Bugzilla
Cryptography
Git
Reverse engineering
SQLite
Matplotlib

Project Highlights

icon
Key developer

ParkMobile

May `18 - Present

7 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.

Kotlin
Android
JUnit
Mockito
GSON
Postman
Retrofit
RxJava
Firebase
Room database
icon
Android developer

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

Android
GSON
Retrofit
MVP patterns
Moxy
icon
Android developer

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

Android
GSON
Retrofit
GCM
icon
Android developer

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

Android
Genymotion
SQLite
Wireshark
icon
Security engineer

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

Eclipse
SQL
SSH
icon
Android developer

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

Android
Calligraphy
GSON
Picasso
Retrofit
icon
Android developer

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

Android
Retrofit
SQLite
Wireshark

Education

Higher education in Computer Science

Agency

Development agency #31

400+

GMT-11

Remote

Want to hire this engineer?

Check if Sergey is available