Senior Full Stack Engineer with 7+ years of experience building enterprise SaaS products, AI-powered applications, healthcare systems, fintech platforms, marketplaces, and internal business tools. Specialized in modern frontend/backend engineering, system design, and production delivery across distributed teams. AI-native development focused on integrating LLM workflows into real products, improving performance and maintainability, and owning end-to-end features from concept through production. Strong product-oriented thinking, customer empathy, and clear technical communication.

Armine Simonyan

Senior Full Stack Engineer with 7+ years of experience building enterprise SaaS products, AI-powered applications, healthcare systems, fintech platforms, marketplaces, and internal business tools. Specialized in modern frontend/backend engineering, system design, and production delivery across distributed teams. AI-native development focused on integrating LLM workflows into real products, improving performance and maintainability, and owning end-to-end features from concept through production. Strong product-oriented thinking, customer empathy, and clear technical communication.

Available to hire

Senior Full Stack Engineer with 7+ years of experience building enterprise SaaS products, AI-powered applications, healthcare systems, fintech platforms, marketplaces, and internal business tools. Specialized in modern frontend/backend engineering, system design, and production delivery across distributed teams.

AI-native development focused on integrating LLM workflows into real products, improving performance and maintainability, and owning end-to-end features from concept through production. Strong product-oriented thinking, customer empathy, and clear technical communication.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

Armenian
Fluent
English
Fluent
Russian
Advanced
French
Advanced

Work Experience

Full-Stack Developer at Toptal
January 1, 2021 - Present
Worked with distributed international teams on production-grade SaaS platforms and enterprise applications. Built scalable frontend and backend systems using React, TypeScript, Node.js, APIs, and modular architectures. Collaborated with product/design/engineering teams to deliver customer-focused solutions, improving platform performance, architecture, maintainability, and engineering standards.
Full Stack Developer at Freelance / Upwork
January 1, 2020 - Present
Developed full-stack applications using Python, FastAPI, React, Vue.js, Next.js, and TypeScript; built AI-powered features, automation systems, and backend APIs; implemented CI/CD pipelines and improved deployment workflows; added unit and integration testing; integrated cloud services, third-party APIs, and payment systems; worked directly with clients in agile environments; used AI-assisted development tools to accelerate delivery and debugging.
Senior Full-Stack Developer at Upwork
January 1, 2019 - Present
Delivered enterprise SaaS platforms, AI-powered applications, healthcare systems, marketplaces, fintech solutions, and internal business tools for international clients. Designed scalable frontend and backend architectures using React, Next.js, Vue.js, Node.js, PHP/Laravel, TypeScript, and PostgreSQL. Built dashboards, workflow automation systems, API integrations, payment flows, cloud-based applications, and AI-powered features, including OpenAI/LLM workflows in production. Optimized performance, maintainability, and developer experience across long-term projects while maintaining high client satisfaction through ownership and proactive communication.
Full-Stack Developer at Arnology LLC
March 1, 2018 - Present
Developed scalable web applications across healthcare, enterprise software, CRM, workflow automation, and business management domains. Built APIs, backend services, frontend applications, deployment workflows, and cloud integrations. Improved usability, scalability, operational stability, and long-term maintainability.
Full-Stack Developer (Internship) at Colibri Lab LLC
February 1, 2017 - January 1, 2018
Built responsive frontend interfaces and backend functionality using modern web technologies. Gained practical experience developing production applications within Agile development teams.

Education

Faculty of International Relation (French University In Armenia) at French University In Armenia - Faculty Of International Relation
September 1, 2013 - May 1, 2017
Full - Stack Web Development Course at Colibri Lab LLC
January 3, 2017 - July 1, 2017

Qualifications

micro1 Certified Full Stack Engineer
April 6, 2026 - April 6, 2026
https://drive.google.com/drive/folders/1YzbqzqciMTTXxSpVW5g4cWd6lCZJVO1Q?usp=sharing

Industry Experience

Software & Internet, Computers & Electronics, Professional Services, Healthcare, Financial Services, Other
    Neural

    Built a healthcare operations platform centralizing client management, appointments, billing, documentation,
    and care-team workflows.
    Developed complex dashboard interfaces displaying appointments, client activity, billing data, clinical
    documentation, and operational KPIs.
    Implemented advanced data tables with filtering, sorting, configurable columns, pagination, and detailed record management.
    Built scheduling workflows, calendar views, provider availability management, and appointment lifecycle
    functionality.
    Developed scalable, reusable component libraries using React, Next.js, TypeScript, Tailwind CSS, and Redux Toolkit.
    Integrated multiple REST APIs and coordinated complex frontend state across interconnected healthcare workflows.
    Optimized rendering performance, data loading, and user experience for large datasets and enterprise-scale applications.
    Collaborated on frontend architecture, state management patterns, code quality, and product improvements across multiple platform modules.
    Delivered accessible, maintainable, and high-performance interfaces supporting day-to-day operations for
    healthcare organizations.

    Sparkdit

    Developed a multi-tenant SaaS platform for collaborative decision-making using Nuxt 3 and Laravel.
    Integrated OpenAI APIs to deliver AI-assisted workflows and intelligent content generation.
    Built reusable Vue 3 components, complex forms, and responsive interfaces with Tailwind CSS.
    Implemented secure authentication, role-based access control, and scalable REST API integrations.
    Worked across frontend and backend to deliver production-ready features with Docker-based development
    workflows.
    Collaborated closely with stakeholders to transform business requirements into scalable product functionality.