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Опыт работы

Senior Angular / Ionic Developer

с 01.2025 по наст. время (1 год 6 месяцев)
ESHYFT, Дистанційно (Медицина, охорона здоров'я, аптеки)

✅ Optimized app startup time by ~1.2 seconds, reduced overall bundle size by 18%, and improved average screen response time by 40%, resulting in noticeably smoother navigation and higher user satisfaction.

✅ Supported and enhanced a high-load hybrid mobile application serving over 700,000 active sessions monthly, ensuring stability, scalability, and smooth user experience under heavy usage.

✅ Established consistent and high-quality code standards across the project by implementing ESLint, Prettier, and automated git pre-commit hooks.

✅ Resolved critical native app issues by developing and organizing Cordova plugin patches, significantly improving app stability and performance.

✅ Collaborated with cross-functional teams (engineering, QA, product, and marketing) to deliver new features on time and improve release coordination.

✅ Integrated new features and supported upgrades in the native codebase using Java and Objective-C, enhancing app functionality and device compatibility.

✅ Delivered new UI screens aligned with best UX practices, boosting user engagement and satisfaction.

✅ Proactively collaborated with backend teams and product stakeholders to define, develop, and integrate RESTful APIs, ensuring seamless system interoperability.

✅ Strengthened application security by identifying vulnerabilities, applying best practices, and actively participating in secure development initiatives.

Lead Software Engineer | Hybrid Mobile Application Engineer

с 02.2020 по 04.2024 (4 года 3 месяца)
InCust Ltd. / Allied Bits Ltd., Дистанційно (IT)

✅ Implemented a fully automated release process for web and mobile platforms by integrated CI/CD (GitLab). This reduced release times by 5x and significantly improved efficiency, allowing to effectively scale with the growing number of platform instances and products.

✅ Supported a large-scale legacy business panel built with AngularJS (1.x) and contributed to a hybrid mobile app developed with Ionic and Angular, incorporating both legacy (Ionic 3).

✅ Actively participated in the development of new API methods, working cross-functionally to ensure robust and efficient API integration across the platform.

✅ Optimized API response times, achieving up to a 3x improvement in some cases, while reducing data payload size by an average of 45%.

✅ Successfully developed and implemented a self-service kiosk for a network of gas stations, integrated AMP payment terminals and PTS-2 forecourt controllers. One of the solutions was fully autonomous.

✅ Developed a universal payment module, integrated various payment systems such as Stripe, Apple Pay, Google Pay, Flutterwave, eWAY, Wave, Global Payments, as well as loyalty and corporate accounts within the platform.

✅ Created a self-hosted application for the AMP payment terminal with a monopolized mode on Android, requiring the development of a custom Cordova plugin in Java.

✅ Provided mentorship and guidance to team members, fostering their professional growth and development.

Senior Full-Stack Software Engineer

с 02.2019 по 02.2020 (1 год)
Webpromotion, Київ (IT)

- Designed and architected from scratch a B2B2C two-sided marketplace platform for beauty services that scaled to 10,000+ production users - built across the full stack: a scalable PHP RESTful API with a normalized MySQL schema, cross-platform Ionic + Angular + Capacitor/Cordova apps for iOS and Android (separate flows for providers and consumers), and a web-based admin back-office. Delivered real-time in-app messaging (WebSockets, Pub/Sub), multi-channel push notifications (APNs / FCM), geolocation-based service discovery, an appointment booking engine, multi-gateway payment and billing flows, a media upload pipeline, a rating and reputation system, and an automated CI/CD release pipeline.

- Maintained and extended a portfolio of interactive language learning platforms in the EdTech sector - developed and shipped companion cross-platform mobile applications (Ionic + Angular + Capacitor) for iOS and Android across multiple language products, delivering offline-first lesson access, audio playback and text-to-speech pronunciation, gamification mechanics (points, levels, achievements), interactive quizzes and flashcards, and progress analytics dashboards - driving learner engagement and retention.

- Implemented technical SEO and web performance optimization strategies across client websites - improving site architecture, Core Web Vitals, structured data, page load times, and crawlability, resulting in measurable gains in search rankings and organic traffic growth.

Lead Full-Stack Engineer & Co-founder

с 08.2010 по 02.2019 (8 лет 7 месяцев)
Rainbow Lab, Київ (IT)

- Co-founded and grew a development team from freelance roots into a full-service web agency focused on e-commerce platforms - managing the complete lifecycle from client discovery and prototyping to deployment and maintenance.

- Led backend development in PHP with MySQL, designed server architecture, and managed Linux infrastructure, including setup, configuration, security hardening, and ongoing maintenance.

- Developed custom CMS plugins and modules tailored to specific client business requirements, delivering scalable and maintainable solutions.

- Applied holistic SEO strategies and web performance optimization across all client projects, consistently improving search engine visibility and organic traffic.

- Sustained multi-year industry recognition — held #1 place in the Kyiv IT ranking and top-10 positions in Ukraine for e-commerce across multiple consecutive years (2013–2017), with several "Website of the Year" awards across industry nominations.

Образование

European University

Master of Computer Science, Computer and Information Sciences and Support Services, Киев
Высшее, с 2022 по 2024 (2 года)

KROK University

Master of Economics, Economics, Киев
Высшее, с 2005 по 2011 (6 лет)

Дополнительное образование и сертификаты

IT Education Academy (ITEA) - Angular.js 1.x

2016

Angular (Intermediate) Certificate

2024
Сертификат

Angular Advanсed (1000/1000)

Mart 2025
Сертификат

Angular (Intermediate) Certificate

Jan 2024
Сертификат

SQL Advanced Certificate

2025
Сертификат

Node.js Certificate

2025
Сертификат

Знания и навыки

• Angular
• Ionic Framework
• TypeScript
• RxJS
• PHP
• MySQL
• SQL
• Capacitor
• JavaScript
• NgRx
• AngularJS
• Git
• HTML
• CSS
• Teamwork
• Mentoring
• Signals
• Node.js
• MongoDB
• Jira
• Cross-platform mobile development
• Jest
• React
• GitHub
• Docker

Знание языков

• Английский — средний
• Украинский — свободно

Рекомендации

• Sergey Engstrem

  Sergey Engstrem

  Контактные данные скрыты

• Андрей Копайгородский

  Андрей Копайгородский

  Rainbow LAb

  Контактные данные скрыты

• Dani Klein

  Dani Klein

  Director of technology, ESHYFT

  Контактные данные скрыты

Дополнительная информация

Experienced Software Engineer specializing in mobile applications using Ionic Framework, Angular, Capacitor and Cordova. Proficient in PHP and MySQL, with experience in leading development teams and managing the full software development lifecycle.

Linkedin: [открыть контакты](см. выше в блоке «контактная информация»)
GitHub link - https://github.com/osben
telegram: https://t.me/osben90
email: osben90{a}gmail.com
tel: +38 (О93) 3О9-23-97