About Tiberiu
I specialize in modernizing complex frontend ecosystems and scaling high-performance platforms (1.5M+ users).
I help companies eliminate technical debt through critical migrations (React 16 to 18, JS to TS) and state architecture optimization (Zustand/TanStack Query) that reduces maintenance overhead and accelerates feature delivery. Core
Expertise & Value: Proven Impact: Unified fragmented state management and migrated 140+ API endpoints to MSW.js, eliminating synchronization failures and significantly reducing developer onboarding time.
Performance Engineering: Achieved a 25% improvement in application load speed by refactoring legacy Redux architectures and eliminating redundant re-renders.
Pragmatic Delivery: Expert at shipping greenfield projects under aggressive deadlines, rapidly adopting new tech stacks (e.g., delivered a Razor/Alpine.js project in 2 months with zero prior experience).
Effective Collaboration: Deep experience working within cross-functional teams, consuming complex APIs built on .NET, Django, or Node.js to deliver high-end UIs, including AI-powered condition and drug search interfaces.
Romanian
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- SermoSenior Software EngineerPHARMACEUTICALS INDUSTRYNovember 2021 - February 2026 (4 years and 3 months)London, United Kingdom
- Optimized frontend architecture and component library for 1.5M-user physician platform across 4 major projects, using React, TypeScript, Zustand, and TanStack Query (interfacing with .NET/AWS microservices)
- Major contributions to AI-driven project development with innovative tools to attract investors, delivering peer consultation flows, survey tools for paid research, social feeds, and sentiment dashboards.
- Boosted team efficiency 25% via workflow automation; refactored legacy code, redesigned platform elements, and optimized high-traffic performance.
- GiffgaffSenior EngineerTELECOMMUNICATIONSFebruary 2021 - October 2021 (8 months)London, United Kingdom
- Owned frontend design system and delivered React Native app improvements for high-traffic E-commerce flows (bundles, data, and minutes).
- Architected SVG generator in React for web/app bundle icons. Integrated React SSR applications into the main platform architecture
- Major contributions to the Airtime team, in charge of bundles, data, and minutes for clients to purchase.
- CybSafeSenior Front End EngineerPUBLIC SAFETYFebruary 2019 - February 2021 (2 years)London, United Kingdom
- Architected role-based dashboard system for three user tiers (admin/manager/employee), enabling granular control over cyber awareness campaign configuration and results analytics.
- Engineered an interactive SVG scene where employees identify real-world security risks: exposed USB sticks, unlocked screens, visible passwords, with instant feedback on each selection.
- Spearheaded full platform modernization from legacy JavaScript to React/TypeScript, collaborating across teams on RESTful API integration. Improved application load performance by 25% through Redux state management refactor.
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Education
- Bachelor Degree in Computer ScienceStefan cel Mare University2009Bachelor Degree in Computer Science