Candidates 6
$3500 / mo
≈ $42000 / year net
Senior Front-end developer
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published 24 April
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published 24 April
Adept at successfully revamping Web solutions to enhance user satisfaction and retention time, streamline navigation, and increase ad revenue and sales. Able to effectively communicate with a wide range of clients and coworkers.
$8000 / mo
≈ $96000 / year net
Teamlead
Ukraine · Chernivtsi · More than 10 years of experience · Advanced/Fluent ·Published 10 April · In passive search
Ukraine · Chernivtsi · More than 10 years of experience · Advanced/Fluent ·Published 10 April · In passive search
Built native and web applications with WCAG compatibility
Resolved risks on zero-day exploits in public libraries
Improved code security and stability
Built ML models to optimize and predict user behaviour and application response
Hands-on crisis management
$5000 / mo
≈ $60000 / year net
Senior Frontend Developer
Ukraine · 7 years of experience · Upper-Intermediate ·Published 21 March · In passive search
Ukraine · 7 years of experience · Upper-Intermediate ·Published 21 March · In passive search
- Introduced end-to-end testing for a critical project area, significantly reducing post-release issues.
- Created the "Creatives Builder" core feature, accelerating project launch and increasing iteration speed.
- Optimized interactive ads, reducing size by 20% and load times by 25%, improving user engagement.
- Enhanced developer experience with release automation scripts, linting, and formatting, reducing development time and errors.
- Reduced code duplication by three times through comprehensive codebase refactoring.
Sidekick (Sep 2019 - Mar 2021)
- Contributed to the development and migration of an Electron application to Chrome with WebExtension.
- Designed and developed a WebRTC-based online meeting and screen-sharing tool using Twilio.
- Developed a password manager with autofill and autosave features for improved user convenience and security.
- Designed and implemented a time tracking feature for users and teams.
Uvik Software (Sep 2018 - Sep 2019)
- Planned and executed a comprehensive refactoring and performance optimization strategy, improving application responsiveness by 70%.
- Successfully migrated mobile and web applications to the latest React Native version, ensuring compatibility with new CPU architectures.
Cusbee (Sep 2017 - Sep 2018)
- Led the migration to the latest React Native version, resulting in a 20% improvement in app performance.
- Implemented mobile security features, enhancing platform security.
- Developed and delivered a suite of 5 applications for a restaurant management platform.
SharpMinds (Sep 2015 - Sep 2017)
- Developed and taught a JavaScript Advanced course for company employees, contributing to team skill improvement.
- Transitioned from synchronous jQuery plugins to a custom microframework, enhancing project performance, developer experience, and maintainability.
- Introduced modern architectural concepts, optimizing code structure and development processes.
- Automated the backend building and publishing process, improving the developer experience.
$6000 / mo
≈ $72000 / year net
Full Stack Developer (.NET/React)
Ukraine · Chernivtsi · 5 years of experience · Advanced/Fluent ·Published 18 March · In passive search
Ukraine · Chernivtsi · 5 years of experience · Advanced/Fluent ·Published 18 March · In passive search
Core tasks I’ve approached earlier:
1) Development from scratch, or maintaining & improving desktop apps
2) Various parsers/business automation solutions
3) Complex 3-rd party integrations
4) Cross-platform mobile development (React Native)
5) Leveraging both: frontend & backend implementation, as a Full-stack (.Net/React)
Worked with different projects, from startups, SMBs, to large-scale product that is direct competitor of Salesforce.
Highly experienced in customer communications with clients from across the globe. That includes consulting, ASAP assistance, establishment of tasks and business values for any development. Certified English C1 (FCE).
With such background, I can provide not only technical solutions but also business-aimed, to fully cover your customer’s needs.
— Had a lot of experience with communicating with clients around the globe.
— Have won as lead and speaker two offline hackathons.
— Got a bachelors degree in CS while working full time from first year.
$6000 / mo
≈ $72000 / year net
Technical Lead, React Native Engineer
Ukraine · 9 years of experience · Upper-Intermediate ·Published 10 March · In passive search
Ukraine · 9 years of experience · Upper-Intermediate ·Published 10 March · In passive search
Kotlin
Javascript/TypeScript
Java, Concurrency, Collections
OOP/OOD
MVC/MVP
React Native:
React
Redux
Redux-Saga
React Navigation
React Native Navigation
CodePush
feature-sliced
Android:
Android Core, NDK
Retrofit, OkHttp, GSON, Jackson
Picasso, Glide, UIL, Fresco
Google IAB V3, Amazon AIP v2
RxJava, RxAndroid
GreenDao, ActiveAndroid, SQLite, DBFlow(basic)
SQL
Dagger 2
Google Maps, Facebook, Twitter, G+
BLE
JUnit, Mockito
Analytics tools:
Crashlytics
Google Analytics
Firebase Analytics
Basic knowledge of reverse engineering
Tools:
IDE: VSCode, Android Studio, IntelliJ IDEA, Visual Studio, WebStorm, CLion
Project Setup: Gradle, Maven (basic), Metro bundler
Source control: Git
Have worked on different challenging tasks like:
- implementing custom media protocol;
- implementing adaptive video quality algorithm based on the bandwidth throughput;
- implementing custom communication protocol with IoT device based on BLE;
- rewrote the critical service in order to handle the high load in terms of providing face recognition solution;
- implementing core network layer for client-backend communication based on WS;
- voice assistants integration into an app;
- etc.
Had various challenges in team leading and mentoring like:
- controlling the process of reducing team bus-factor;
- reveal and define the main priorities for the team;
- took part in the team restructuration;
- lead the communication and integration processes with the partners;
- etc.
Looking for possibility to lead the team.
$5000 / mo
≈ $60000 / year net
Front-end developer
Ukraine · Chernivtsi · 7 years of experience · Upper-Intermediate ·Published 5 March · In passive search
Ukraine · Chernivtsi · 7 years of experience · Upper-Intermediate ·Published 5 March · In passive search