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Hi, I’m Hossein Naseri, a Senior Frontend Engineer with 7+ years building enterprise React, Next.js, and TypeScript SaaS platforms across ERP, fintech, and e-commerce. I led frontend architecture for products serving 6M+ users and 100k+ customers, cutting load times by 40%, and I specialize in monorepo architectures (Nx), design systems, performance optimization (Core Web Vitals), and testing. I have a proven track record in remote, async, cross-timezone collaboration; I mentor engineers and have taught 1,000+ students; I have shipped projects from MVP to full-scale production and I thrive in fast-paced, collaborative environments delivering high-quality, accessible UIs and scalable frontend systems.…Hi, I’m Hossein Naseri, a Senior Frontend Engineer with 7+ years building enterprise React, Next.js, and TypeScript SaaS platforms across ERP, fintech, and e-commerce. I led frontend architecture for products serving 6M+ users and 100k+ customers, cutting load times by 40%, and I specialize in monorepo architectures (Nx), design systems, performance optimization (Core Web Vitals), and testing. I have a proven track record in remote, async, cross-timezone collaboration; I mentor engineers and have taught 1,000+ students; I have shipped projects from MVP to full-scale production and I thrive in fast-paced, collaborative environments delivering high-quality, accessible UIs and scalable frontend systems.

Hossein Naseri

Front-End Developer, Web Developer, Full Stack Developer, +5

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Hi, I’m Hossein Naseri, a Senior Frontend Engineer with 7+ years building enterprise React, Next.js, and TypeScript SaaS platforms across ERP, fintech, and e-commerce. I led frontend architecture for products serving 6M+ users and 100k+ customers, cutting load times by 40%, and I specialize in monorepo architectures (Nx), design systems, performance optimization (Core Web Vitals), and testing. I have a proven track record in remote, async, cross-timezone collaboration; I mentor engineers and have taught 1,000+ students; I have shipped projects from MVP to full-scale production and I thrive in fast-paced, collaborative environments delivering high-quality, accessible UIs and scalable frontend systems.…Hi, I’m Hossein Naseri, a Senior Frontend Engineer with 7+ years building enterprise React, Next.js, and TypeScript SaaS platforms across ERP, fintech, and e-commerce. I led frontend architecture for products serving 6M+ users and 100k+ customers, cutting load times by 40%, and I specialize in monorepo architectures (Nx), design systems, performance optimization (Core Web Vitals), and testing. I have a proven track record in remote, async, cross-timezone collaboration; I mentor engineers and have taught 1,000+ students; I have shipped projects from MVP to full-scale production and I thrive in fast-paced, collaborative environments delivering high-quality, accessible UIs and scalable frontend systems.

Available to hire

Hi, I’m Hossein Naseri, a Senior Frontend Engineer with 7+ years building enterprise React, Next.js, and TypeScript SaaS platforms across ERP, fintech, and e-commerce. I led frontend architecture for products serving 6M+ users and 100k+ customers, cutting load times by 40%, and I specialize in monorepo architectures (Nx), design systems, performance optimization (Core Web Vitals), and testing.

I have a proven track record in remote, async, cross-timezone collaboration; I mentor engineers and have taught 1,000+ students; I have shipped projects from MVP to full-scale production and I thrive in fast-paced, collaborative environments delivering high-quality, accessible UIs and scalable frontend systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Persian

Fluent

English

Advanced

Work Experience

Senior Frontend Engineer at Paradigm Digital

June 1, 2023 - May 1, 2026

Led frontend engineering of an ERP/CRM platform serving 100k+ customers with a 7-person Agile team. Established GitHub Actions CI/CD pipelines and led code reviews, cutting feature lead time. Built a configuration-driven, white-label rendering engine that auto-generates 100+ customer-specific forms and interfaces from JSON schemas for ERP/CRM handling billing and supply-chain data, saving roughly 30 developer hours per release cycle.

Senior Frontend Engineer at Paradigm Digital (Client: American Standard Coatings)

June 1, 2023 - May 31, 2026

Led frontend engineering for an ERP/CRM SaaS platform serving 100k+ customers. Established GitHub Actions CI/CD pipelines and led code reviews, reducing average feature lead time from 5 days to 3. Built a configuration-driven, white-label rendering engine that auto-generates 100+ customer-specific forms and interfaces from JSON schemas for billing and supply-chain data, saving substantial development time. Implemented a monorepo-based frontend architecture with Nx and a design system (MUI, Tailwind) and emphasized accessibility (WCAG 2.2 AA) and performance. Delivered 170+ React/Next.js screens, with a focus on component-driven development and testability (Jest, React Testing Library). Mentored 2 mid-level engineers, conducted 30+ technical interviews, and hired 2 frontend developers. Produced a reliable production-ready frontend stack from MVP to full-scale production.

Senior Frontend Engineer at WalleX

February 1, 2022 - May 31, 2023

Architected a centralized Nx monorepo and shared TypeScript utilities; established a Storybook-driven design system; rolled out across 12 internal products on a fintech platform serving 6M+ users. Cut cross-team code duplication by ~40% and reduced new-feature onboarding from days to hours via shared libraries and UI components. Built frontend architecture for a financial platform from scratch—MVP and back-office dashboards for payments and trading—using Next.js and TypeScript; owned every layer from design system to production; shipped in under 7 weeks. Mentored 3 junior engineers and contributed to technical hiring and onboarding.

Senior Frontend Engineer at SinanSoft

January 1, 2021 - February 1, 2022

Built core modules of a Zillow-like real estate platform using React/Next.js; achieved 80%+ test coverage; introduced modern component architecture and cross-team collaboration; onboarded and mentored junior engineers.

Frontend Engineer at Sinan Soft

January 1, 2021 - February 1, 2022

Frontend Engineer for U.S. client projects (remote, part-time). Built core modules of a Zillow-like real estate platform using React/Next.js; achieved 80%+ test coverage on core modules; introduced modern component architecture and testing strategy; rolled out across 3 squads. Coordinated with U.S. clients across time zones via Slack/Zoom/Notion; onboarded and mentored 3 junior engineers to mid-level within 12 months.

Full Stack Engineer at Quantum Startup Accelerator

January 1, 2019 - January 1, 2021

Architected and built 5+ products from scratch across e-commerce, logistics, and B2B SaaS using React/Next.js and the MERN stack; delivered MVPs to investors in under 10 weeks; collaborated with founders on scope and prioritization.

Full Stack Engineer at Quantum + Startup Accelerator

January 1, 2019 - January 1, 2021

Architected and built 5+ products across e-commerce, logistics, and B2B SaaS using React/Next.js and the MERN stack; owned frontend stack end-to-end from design to production. Shipped 2 MVPs in under 10 weeks and collaborated with founders on scoping and prioritization to align with product strategy.

Frontend Developer at Iran Web Yard

December 1, 2017 - January 1, 2019

Led frontend development of a large-scale e-commerce platform serving 20,000+ users with React/Redux and Material-UI; mentored 5 interns; introduced modern component architecture and performance improvements.

Frontend Developer at Iran Web Year

December 1, 2017 - January 1, 2019

Led frontend development of a large-scale e-commerce platform serving 20,000+ users using React, Redux, and Material-UI; mentored 5 interns and contributed to a cohesive design system and scalable frontend architecture.