Sirusho Martikyan
Verified Expert in Engineering
Full-stack Developer
Yerevan, Armenia
Toptal member since June 2, 2026
Sirusho is a senior full-stack developer with 8+ years of commercial experience building scalable, high-performance web applications using React, Next.js, and TypeScript. She specialized in microfrontend architectures, design systems, and enterprise platforms. She has led front-end delivery for global brands including IQOS and Burberry, redesigning a product lifecycle management platform and shipping login, registration, and account flows used by millions across microfrontend architectures.
Portfolio
Experience
- React - 8 years
- Next.js - 8 years
- TypeScript - 8 years
- JavaScript - 8 years
- Redux - 8 years
- Front-end Development - 8 years
- Node.js - 4 years
- Claude - 2 years
Preferred Environment
Next.js, React, JavaScript, Node.js, Redux, Agile, Full-stack Development, Claude Code, Supabase, SaaS
The most amazing...
...thing I’ve developed is a high-performance React application used daily by thousands of users across multiple countries.
Work Experience
Key Front-end Developer
Philip Morris International
- Designed and maintained micro-frontend architecture for IQOS Login, Registration, My Account, and Club flows, ensuring scalable and maintainable front-end solutions.
- Developed reusable React/Next.js components from Figma designs and improved application performance through code splitting, bundle optimization, and rendering enhancements.
- Worked with AWS, CloudFront, and Akamai for CDN, caching, application delivery, and handled production incidents.
- Managed SDK integrations and environment configurations, as well as cross-team technical troubleshooting.
- Implemented unit and integration testing, conducted code reviews, and maintained technical documentation to improve code quality and long-term stability.
- Mentored junior developers, supported onboarding, and collaborated directly with Philip Morris stakeholders through technical discussions, Scrum ceremonies, demos, and delivery.
React Expert
ToothReferral.com LLC
- Refactored React document editors using Lexical, Slate.js, and ProseMirror to improve usability and maintainability. Integrated DocuSign Anchor Tagging and Custom Tabs while preserving accurate signature mapping.
- Improved document layouts to keep dynamic content properly aligned within headers, footers, and page boundaries. Modularized existing React codebases without breaking back-end APIs or production integrations.
- Built reusable document templates with dynamic fields such as names, dates, and referral data.
Front-end Team Lead
Emote Care
- Led a front-end team of five developers, coordinating multiple workstreams, sprint planning, estimation, and on-time releases.
- Defined front-end architecture, standards, and best practices, focusing on scalability, maintainability, performance, and consistent development practices.
- Served as the technical bridge between design, the back end, and stakeholders, translating requirements, resolving technical challenges, and aligning delivery expectations.
- Improved application performance through lazy loading, memoization, and optimized state management, while supporting Azure-based deployments and CI/CD pipelines.
Front-end Developer
Xpander.ai
- Implemented WebSocket-based real-time communication for message sending, streaming, and receiving, ensuring reliable low-latency interactions.
- Optimized chat rendering and state updates to efficiently handle long conversation histories and continuously streaming messages.
- Built robust error handling and reconnection logic, covering network failures, interrupted streams, and other real-time edge cases.
- Developed modular React hooks and state management patterns to simplify complex real-time communication and improve maintainability.
Front-end Engineer
Burberry London
- Led the front-end redesign and modernization of Burberry’s PLM platform, improving usability, scalability, and runtime performance.
- Improved application state management and rendering efficiency, reducing unnecessary re-renders and enhancing overall responsiveness.
- Contributed to architecture discussions and technical decision-making, working closely with senior engineers on modernization and implementation strategies.
Full-stack Developer
Pollin Fertility
- Developed core practitioner workflows for appointment booking, order management, payments using Stripe, and test result viewing.
- Built and maintained Node.js/Express APIs supporting operations and core business logic across the platform.
- Implemented Cypress end-to-end testing, reducing regressions and improving release confidence across critical workflows.
- Collaborated with back-end engineers to define API contracts, data structures, and integration patterns, ensuring reliable frontend-backend communication.
Experience
Philip Morris IQOS
https://www.iqos.com/fr/fr/login.html?gr=falseXpander.ai | Generative AI Platform
https://xpander.ai/Burberry Product Lifecycle Management (PLM) Platform
https://row.burberry.com/Pollin Canada
Emote Care
Education
Professional Degree in JavaScript
JavaScript - Yerevan, Armenia
Bachelor's Degree in Informatics and Applied Mathematics
Yerevan State University - Yerevan, Armenia
Certifications
Claude Certified Architect - Foundations
Anthropic
Introduction to Agent Skills
Anthropic Education
AI Fluency: Framework & Foundations
Anthropic Education
Claude 101
Anthropic Education
Claude code in action
Antropic
Skills
Libraries/APIs
React, Node.js, React Redux, React Query, Stripe, HubSpot API, REST APIs, React Testing Library, Stripe API, WebGL, API Development, OpenAI API, D3.js, Google Maps, Google Maps API, Redux-Saga, Zod, Yup
Tools
Adobe, Redux Toolkit, Prettier, Git, GitHub, Bitbucket, GitLab, Figma, Claude Code, Claude, NPM, ChatGPT, Google Analytics, Adobe Experience Manager (AEM), Webpack, Sentry, TanStack Router, Claude Agent SDK
Languages
JavaScript, TypeScript, HTML, CSS, SQL, GraphQL, Python, SCSS
Frameworks
Next.js, MUI CSS, Agentic Frameworks, Express.js, Material UI, Redux, Jest, Tailwind CSS, Cypress, Django
Paradigms
B2B, Responsive Web Design (RWD), Unit Testing, Agile, Microfrontends, REST, Search Engine Optimization (SEO), Role-based Access Control (RBAC), UI Design, UX Design, Agile Project Management, Fast Healthcare Interoperability Resources (FHIR)
Platforms
HubSpot, Firebase, Amazon Web Services (AWS), Google Cloud Platform (GCP), Vercel, AWS IoT, Webflow, Twilio, Google Ads, Azure, Clerk
Storage
PostgreSQL
Industry Expertise
Healthcare, Project Management
Other
Storybook, Tailwind UI, Front-end Development, Supabase, Full-stack, Full-stack Development, Web Development, Agentic Coding, Front-end, Styled-components, Performance, Site Speed Optimization, Technical SEO, Mobile First, User Interface (UI), Dashboards, Data Visualization, RESTFul APIs, Code Review, Website Performance, AI-assisted Development, Technical Leadership, Software Engineering, Problem Solving, Interviewing, Communication, Web App Development, Apple Pay, ESLint, Cursor AI, Front-end Architecture, Design Systems, API Integration, APIs, Software Design, Artificial Intelligence (AI), Authentication, Authorization, Supabase Auth, Payment APIs, Live Chat, Agentic AI, AI Agents, Performance Optimization, Deployment, SaaS, Large Language Models (LLMs), CI/CD Pipelines, AI-generated Code, Progressive Web Applications (PWAs), Zustand, User Experience (UX), Mobile-first Design, SMS, Financials, Security, Minimum Viable Product (MVP), OpenAI, DocuSign, Charts, Booking, Consulting, Real-time Data, System Integration, Webhooks, Computer Science, Vibe Coding, Google Analytics 4 (GA4), Google Tag Manager, Meta Ads, Marketing Attribution, Software as a Service (SaaS), Architecture, Mentorship, Team Leadership, Software Architecture, Technical Consulting, Integration, CTO, Integrations, Lovable, Scalable Architecture, Code Auditing, Product Management, LLM Integration, Engineering Management, Anthropic, Screeners, Attention to Detail, Written Communication, Dashboard Development, Optical Character Recognition (OCR), CMS, Content Management Systems (CMS), Software Deployment, PostgreSQL 9, WebSockets, TypeORM, Startups, Zebra Printer Integration, Hotels & Lodging, Reservation Flow, Electronic Health Records (EHR), Audits, AI System Design, Claude Code Configuration, Context Management, Generative AI Architecture, Multi-agent Orchestration, Production Reliability, Prompt Engineering, Structured Output, Tool & MCP Design
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