Олександр

OLEKSANDR BORYSENKO
Senior React Native / Mobile Team Lead Engineer Email: [open contact info](look above in the "contact info" section)
Location: Lviv, Ukraine LinkedIn: [open contact info](look above in the "contact info" section)
English: Upper-Intermediate Phone: [open contact info](look above in the "contact info" section)

Summary
Senior React Native Engineer with 7+ years of experience building scalable mobile applications for product and outsourcing
companies. Experienced in leading mobile teams, designing scalable architectures, owning release processes, and delivering
cross-platform solutions from scratch. Strong background in React Native ecosystem, real-time applications, offline-first
architecture, CI/CD, analytics integration, performance optimization, and mentoring engineers.

Key Achievements
Built and implemented mobile engineering processes from scratch, defining development standards, team workflows, release
pipelines, and technical best practices.
Led the successful delivery and launch of multiple large-scale mobile applications with audiences of millions of users.
Led the design and implementation of scalable mobile architectures, establishing engineering standards and technical
direction across multiple projects.
Drove technical decision-making, including system integrations, application architecture, performance optimization, and
adoption of engineering best practices.
Established quality assurance processes by introducing automated testing strategies and quality gates throughout the
development lifecycle.
Mentored and coached engineers through regular code reviews, technical guidance, knowledge sharing, and career
development support.
Participated in hiring processes, technical interviews, and team growth initiatives, helping build and scale high-performing
engineering teams.
Designed and integrated AI-powered engineering workflows using orchestrators, reusable skills, specialized agents, and
project-specific instructions to automate routine development tasks, improve decision-making, and increase overall team
productivity.

Professional Experience
Senior React Native Developer — N-iX | Jun 2026 – Present
A white-label weather application with fully configurable screens driven by a remote configuration. The configuration defines the app
navigation, screen structure, and modules displayed on each screen. The project also involved significant architectural and
performance improvements, as well as the implementation of different notification types and deep linking. My role on the project was
to help the team release the application on time and with the most optimized architecture and application possible.

• Led architectural improvements for a large-scale white-label weather app, making its configuration-driven navigation and dynamic
rendering more scalable and maintainable.
• Resolved critical performance bottlenecks across navigation, rendering, and application architecture, significantly improving
responsiveness.
• Designed and implemented an AI-powered engineering orchestration framework covering the full software development lifecycle,
from Jira analysis to release readiness.

Senior React Native Developer / Mobile Team Lead — N-iX | Nov 2023 – Jun 2026
Vehicle tracking and transportation management platform designed for public transportation and commercial fleet management.
The application provides real-time vehicle tracking on maps, route management, notifications for approaching stops, and
trip-related events. Users can monitor vehicle movement, receive live updates, and manage transportation workflows directly from
the mobile application. The platform also integrates analytics and monitoring systems to improve operational efficiency and
reliability.

• Owned mobile architecture, codebase, release delivery, and technical direction.

• Led mobile development initiatives and mentored less experienced engineers.

• Implemented large-scale features using React Native, Redux, WebSocket, Push Notifications, and DataDog.

• Collaborated with stakeholders on estimations, planning, and feature prioritization.

• Implementation of AI technologies for PR reviews and writing tests for new functionality.

React Native Engineer — Portside | Nov 2022 – Sep 2023
Aviation management platform designed for aircraft owners and airline operators to manage flights and operational events. The
application allows users to create flight requests, manage schedules, track upcoming events, and analyze operational statistics.
The platform included calendar management, dashboards with charts, offline functionality, and secure authentication flows. The
project focused heavily on scalability, usability, and stable performance across mobile platforms.

• Designed and implemented the mobile application architecture from scratch.

• Implemented Auth0/Biometry Login, Google Maps, Push Notifications, Offline Mode, and Dashboards.

• Delivered the first production release and scaled the platform functionality.

• Mentored junior engineers and conducted code reviews.

JavaScript Engineer — Swedish Education Company | Jun 2021 – Oct 2022
Educational mobile applications focused on helping children learn mathematics, physics, biology, and other school subjects. The
applications provided interactive exercises, educational content, video lessons, and progress tracking functionality. The platform
combined several React Native applications into a unified ecosystem with shared functionality and architecture. The project
required strong collaboration between engineering and product teams to continuously improve the learning experience.

• Integrated multiple React Native apps into one platform.

• Implemented an exercise engine and participated in architecture decisions.

• Worked with React Native, React, Redux, MobX, Firebase, Jest, Cypress, and Detox.

JavaScript Engineer — Aimprosoft | Jan 2019 – May 2021
Worked on multiple outsourcing projects including corporate communication platforms, parking management systems, and e-
commerce/web solutions. Projects included real-time messaging functionality, payment system integrations, user interface
modernization, and frontend migrations. Participated in implementation of scalable frontend architecture and modernization of
legacy applications. Collaborated closely with distributed teams and stakeholders across multiple business domains.

• Implemented features using React Native, GraphQL, WebSocket, WebRTC, and Stripe.

• Participated in architecture modernization and migration to React.

• Conducted code reviews and improved UI/UX quality.

Technical Skills
Mobile & Frontend React Native, React, TypeScript, JavaScript
Architecture Redux Toolkit, RTK Query, GraphQL, Clean Architecture
Backend & Cloud Node.js, Firebase, Google Cloud
CI/CD & Testing Fastlane, AWS CodePipeline, Jest, Detox, Cypress
Other WebSocket, WebRTC, Push Notifications, Google Maps, DataDog

Education
Master of Science / Bachelor of Science in International Economic Relations — Kharkiv Institute of Trade and Economics