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I’m Tony Lintonylin, a Senior Full-Stack & AI Developer with 8+ years of experience leading the design and delivery of scalable SaaS platforms, cloud-native apps, and AI-powered solutions across enterprise and service-based industries. I specialize in React, Angular, Node.js, Python, cloud architecture, and large language model integration, turning complex business needs into high-impact digital products. I’m known for elevating system stability and code quality, mentoring engineers to improve quality by 50%, and driving a 70% expansion in product use cases through innovative full-stack and AI development. I thrive in collaborative teams and enjoy shipping robust, data-driven features that customers actually use.…I’m Tony Lintonylin, a Senior Full-Stack & AI Developer with 8+ years of experience leading the design and delivery of scalable SaaS platforms, cloud-native apps, and AI-powered solutions across enterprise and service-based industries. I specialize in React, Angular, Node.js, Python, cloud architecture, and large language model integration, turning complex business needs into high-impact digital products. I’m known for elevating system stability and code quality, mentoring engineers to improve quality by 50%, and driving a 70% expansion in product use cases through innovative full-stack and AI development. I thrive in collaborative teams and enjoy shipping robust, data-driven features that customers actually use.

Tony Lintonylin

5.0 (1 review)

I’m Tony Lintonylin, a Senior Full-Stack & AI Developer with 8+ years of experience leading the design and delivery of scalable SaaS platforms, cloud-native apps, and AI-powered solutions across enterprise and service-based industries. I specialize in React, Angular, Node.js, Python, cloud architecture, and large language model integration, turning complex business needs into high-impact digital products. I’m known for elevating system stability and code quality, mentoring engineers to improve quality by 50%, and driving a 70% expansion in product use cases through innovative full-stack and AI development. I thrive in collaborative teams and enjoy shipping robust, data-driven features that customers actually use.…I’m Tony Lintonylin, a Senior Full-Stack & AI Developer with 8+ years of experience leading the design and delivery of scalable SaaS platforms, cloud-native apps, and AI-powered solutions across enterprise and service-based industries. I specialize in React, Angular, Node.js, Python, cloud architecture, and large language model integration, turning complex business needs into high-impact digital products. I’m known for elevating system stability and code quality, mentoring engineers to improve quality by 50%, and driving a 70% expansion in product use cases through innovative full-stack and AI development. I thrive in collaborative teams and enjoy shipping robust, data-driven features that customers actually use.

Available to hire

I’m Tony Lintonylin, a Senior Full-Stack & AI Developer with 8+ years of experience leading the design and delivery of scalable SaaS platforms, cloud-native apps, and AI-powered solutions across enterprise and service-based industries. I specialize in React, Angular, Node.js, Python, cloud architecture, and large language model integration, turning complex business needs into high-impact digital products.

I’m known for elevating system stability and code quality, mentoring engineers to improve quality by 50%, and driving a 70% expansion in product use cases through innovative full-stack and AI development. I thrive in collaborative teams and enjoy shipping robust, data-driven features that customers actually use.

Skills

Experience Level

Expert

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Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer / AI Engineer at Smartsheet

January 1, 2024 - February 1, 2026

Architected Smartsheet’s AI workspace from discovery through in-product content and formula generation, enabling users to create summaries, project plans, and spreadsheet formulas inside sheets and dashboards. Built secure Node.js and Python middleware for prompt orchestration with access controls and telemetry, driving adoption to 42K+ weekly active users. Engineered a contextual formula assistant with autocomplete, syntax highlighting, inline validation, and NL-to-formula conversion, handling 120K+ monthly interactions. Implemented retrieval-augmented generation with vector embeddings and semantic search so AI responses reference workspace attachments, historical sheets, and internal documents. Created a Kubernetes tunneling framework with mTLS authentication to route staging traffic to local environments, reducing debugging time and infra costs by ~90%. Refactored large-scale grid rendering with virtualization, lowering load times by ~40% for sheets with hundreds of thousands of c

Senior Full Stack Engineer at GoSite

June 1, 2021 - December 1, 2023

Directed customer-facing platform enhancements for bookings, messaging, reviews, invoices, and payments from a single dashboard. Modernized subscription pricing and self-checkout flow using React, Next.js, and Stripe, enabling new pricing models to launch 50% faster. Built a real-time messaging center with WebSockets and event-driven services to allow merchants to communicate with customers via SMS, email, and web chat. Implemented appointment scheduling workflows with recurring bookings, reminders, waitlists, and calendar synchronization. Integrated with Google Business Profile, Yelp, QuickBooks, Twilio, and Stripe to synchronize reviews, billing, customer records, and communications. Optimized PostgreSQL queries, Redis caching, and asynchronous jobs to improve API response times by >35% during seasonal spikes.

Senior Frontend Engineer at Ardomus Networks Corporation

January 1, 2016 - February 1, 2021

Spearheaded the redesign of enterprise network-monitoring dashboards for IT administrators to track bandwidth, hardware status, server uptime, and infrastructure alerts. Migrated multiple legacy applications to React-based SPAs, delivering a unified, responsive interface. Built interactive visualizations for network metrics and system health using reusable charting components and live event feeds. Established a shared UI library to standardize tables, forms, filters, and notifications across internal platforms. Connected REST and WebSocket services to stream telemetry for real-time outage monitoring and anomaly detection. Strengthened frontend performance with lazy loading, code splitting, memoization, and API batching on data-heavy screens.

Software Engineer Intern at Penpower Technology

February 1, 2014 - January 1, 2015

Created ViatalkBT, an Android app transforming a smartphone into a Bluetooth speech-to-text tool, achieving 10,000+ downloads. Produced WorldCardCloud for Android to scan, organize, and synchronize business cards (5,000+ downloads). Integrated OCR, Bluetooth, and cloud synchronization to boost mobile productivity. Optimized background synchronization and local storage for responsiveness and battery efficiency. Documented architecture, feature specifications, and troubleshooting workflows for future maintenance.

Software Engineer Intern at Eastek Technology Co., Ltd.

August 1, 2014 - September 1, 2014

Architected and delivered a browser-based platform enabling engineers to inspect PCB manufacturing data, layer structures, and component layouts. Designed automated test frameworks for CAM software to improve validation accuracy and regression coverage. Contributed to release reliability and documented architecture, troubleshooting workflows, and feature specifications.