Oleksii Dolia

• Implementation and adaptation of Agile processes.
• Development of multiple platforms in the EdTech domain.
• Support of existing code base, implementation of new functionality.
• Promoted a positive work environment by fostering teamwork, open communication, and employee recognition initiatives.
• Enhanced overall team performance by providing regular coaching, feedback, and skill development opportunities.
• Trained new team members by relaying information on company procedures and safety requirements.
• Raised development efficiency by up to 40% through innovations in development and project management processes

Project: Calendar aggregator application

Stack: TypeScript, ReactNative, Rematch, Sentry, NextJS, WP, PHP, MySQL

Responsibilities:

• Development and support of mobile applications for client and business

side

• Build reusable React components for a dynamic and responsive user

interface

• Set up and maintain CI/CD pipelines for automated testing and deployment

of mobile applications

• App improvements and bug fixing

• Redesign for the client application

• Configuration and connect calendars API like Google Calendar, Microsoft,

mobile native calendars

• Handle network requests and manage offline capabilities

• Writing tests, testing

• Create, configure, upload and support application in AppStore and Google

Play

• Conduct code reviews and provide constructive feedback

Project: Online store

Stack: TypeScript, ReactNative, Rematch, Sentry, Google/Apple API

Responsibilities:

• Implementing from scratch and support of web and mobile application

• Connect and configuration various payment systems - Apple/Google pay,

Stripe, PayPal, BLIK, Bank transfer

• Connect InPost API

• Writing tests, testing

• Create, configure, upload and support application in AppStore and Google

Play

• Integrating Google Maps API

• Applied Firebase push notifications

• Monitor and troubleshoot performance issues

• Optimize React application performance by employing memoization, icon

fonts and lazy loading

• Code review

Project: Banking application

Stack: ReactNative, React; Redux-toolkit; Redux-Saga; REST API; PHP;

MySQL; Storybook; AWS

Responsibilities:

• Planning for product development and safety improvements

• Development and support of mobile applications for client and business

side

• Mobile applications performance optimization

• Implement CI/CD pipelines for automated deployment

• Implementing and support of admin panel for the platform

• Migration of react-native version from 0.62 to 0.73

• Test writing

• Maintenance and support for AppStore and GooglePlay

• Implement data protection in React Native by encrypting sensitive data,

using secure storage solutions, and applying best practices for data

transmission and access control using Encryption and Code Obfuscation

• Applied secure Token and Key Storage

• Enhanced user experience by designing and implementing intuitive mobile applications for iOS and Android platforms.
• Worked closely with UX/UI designers to translate wireframes into functional prototypes, ensuring consistent visual design across all platform versions.
• Collaborated with cross-functional teams to develop innovative solutions for complex client requirements.
• Implemented robust security measures to protect sensitive user data and ensure compliance with industry standards.

As a Head of React/ReactNative department

• Guide and support team members, providing mentorship and fostering

professional growth

• Oversee project planning, execution, and delivery, ensuring milestones and

deadlines are met

• Allocate tasks and resources effectively, balancing workload among team

members

• Serve as the primary point of contact between the team and other

stakeholders

• Communicate project goals, updates, and changes clearly to all team

members

• Monitor team performance and productivity, providing feedback and

setting performance goals

• Facilitate solutions to conflicts and challenges within the team

Project: Live video chats platform

Stack: JavaScript; ReactNative; Redux; Redux-Saga; REST API;Reanimated;

Node.JS; Nest.JS

Responsibilities:

• Integrate Video SDK in React Native (Jitsi)

• Database architecture planning

• Design and implement responsive, user-friendly interfaces for data

visualization and interaction

• Develop components and layouts to display real-time streaming data

effectively.

• Integrate with data streaming APIs or services to display live data updates.

• Optimize front-end performance to ensure smooth rendering and minimal

latency for real-time data

• Develop and integrate charts, graphs

• Write unit and integration tests for front-end components and data

interactions.

• Conduct performance testing to ensure the application can handle high

volumes of data

Project: Application for students with live text chats

Stack: TypeScript; ReactNative; Mobx; REST API; PHP; Laravel, Websockets

Responsibilities:

• Team leadership, development management, architecture planning,

decision approval, developer support

• Communicating with the Customer, assisting in decision making, technical

advice

• Cross-browser compatibility and responsive design

• Integrate FIrebase push notifications

• Implementing Google Analytics

• Applied web sockets for chat messaging

Project: Platform for online events booking

Stack: JavaScript; React; ReactNative; Redux; Redux-Thunk; REST API;PHP;

Laravel, Web sockets

Responsibilities:

• Collaborate with designers to translate UI/UX designs into interactive

features.

• Development and support of mobile applications for client and business

side

• Architecture planning, team leadership, development management,,

decision approval, developer support

• Integrating Mapbox API

Project: Cryptocurrency wallet application

Stack: TypeScript; React; Redux-Saga; REST API; Node.JS;

Express.JS,MongoDB

Responsibilities:

• Development and support of web applications for client and businessside

•Connect Blockchain network using web3.js

• Integrate Blockchain provider using Infura fog get balance, send

transaction etc.

•Testing and optimization

Project: Fitness application

Stack: TypeScript; ReactNative; React; Redux; Redux-Saga; REST

API;Node.JS; Express;

Responsibilities:

• Integrating native applications for tracking health metrics

• Planning for product development

• Development and support of mobile applications for client andbusiness

sideImplementing and support of admin panel for the platform

• Utilized HTML, CSS, and JavaScript to create visually appealing and responsive web pages that met client requirements.
• Coded using HTML, CSS, and JavaScript to develop features for both mobile and desktop platforms.
• Worked closely with UX/UI designers to translate their designs into functional web applications.
• Utilized version control systems such as Git to track changes throughout the development process.
• Collaborated with back-end developers to improve website functionality and integrate new features.
• Optimized site content for mobile devices using responsive design techniques.
• Troubleshot technical issues related to front end development, ensuring prompt resolution to maintain project timelines.