Open to opportunities

Aidar Khabibullin

@aidarkhabibullin

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Senior Frontend Engineer building high-performance SaaS apps with React, Next.js, and leadership.

Turkey

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What I'm looking for

I’m looking for a team where I can build high-performance frontend with React/Next.js, keep shipping via CI/CD, and lead scalable, modular, security-minded architecture—while mentoring others to deliver measurable product impact.

I’m a Senior Frontend Engineer who drives complex SaaS experiences—delivering 20+ high-impact applications and contributing to multi-million ARR (~$4.4M). I focus on measurable performance wins, cutting bundle size by 50%, load times by 35%, and boosting user retention by 20% through scalable, modular architecture and continuous delivery.

Most recently, I led frontend as a Tech Lead, shipping high-performance features within a 50+ cross-functional organization, with a 5-person frontend team and CI/CD practices. I’ve built role-based admin experiences (including Stripe integration), delivered React Native subscription flows, created an internal UI-kit and dev tools, and refactored monolithic code into reusable modules—improving team efficiency and development throughput.

Experience

Work history, roles, and key accomplishments

Tech Lead Frontend Engineer

ShelterZoom

Apr 2022 - Apr 2026 (4 years)

Led frontend engineering for a cybersecurity SaaS, building an admin panel with role-based access and Stripe integration, reducing manual admin tasks by 30%. Delivered React Native subscription capabilities (retention +20%), created an internal UI kit (dev efficiency +20%), refactored components into modular architecture (team efficiency +40%), and reduced page load times by 35%.

React Next.js React Native TypeScript Javascript (ES6)CI CD Stripe Performance Optimization Modular Architectures

Senior Frontend Developer

Sberbank

Jan 2021 - Apr 2022 (1 year 3 months)

Developed the Sberbank Vmeste banking experience with integrated Sber Online support and led architecture/CI for scalable future frontend apps. Migrated legacy frontend from Angular to React, built an in-house payment system, mentored 3 middle developers, and reduced support requests by 70% via a customizable client management panel.

React TypeScript Javascript (ES6)CI CD Angular Migration Payment Systems Architecture Testing

Middle Frontend Developer

OpenText Cloudally Backup

Feb 2019 - Jan 2021 (1 year 11 months)

Migrated a frontend to React 16 with SSR, reducing page load times by 46% and improving SEO traffic by 32%. Optimized builds with Rollup (bundle size -31%, build speed +2.7x) and implemented feature-based architecture (feature development speed +1.5x), supporting Salesforce integrations that increased customer acquisition by 32%.

TypeScript Rollup Performance Optimization SEO Optimization Feature Based Architecture Salesforce Integration

Middle Frontend Developer

LLC Runtime

Oct 2017 - Feb 2019 (1 year 4 months)

Improved React application performance using code splitting, lazy loading, and asset optimization, reducing LCP/TTI by 46%. Increased reliability with unit tests (96% coverage), introduced feature flags to accelerate releases, reduced incident reports by 30%, and improved conversion metrics by 33% through React-based product and checkout experiences.

React Lazy Loading Performance Optimization React Testing Unit Testing Conversion Optimization