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Saqib Naseeb

@saqibnaseeb

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Senior Frontend Engineer focused on scalable, type-safe React and TypeScript apps.

Pakistan

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What I'm looking for

I seek senior frontend roles emphasizing React/TypeScript excellence, performance, accessibility, collaborative teams, mentorship opportunities, and projects that integrate data-driven features and measurable user impact.

I am a Senior Frontend Engineer with 8+ years building high-performance, scalable, type-safe front-end applications using React.js, TypeScript, and Next.js.

I drive performance improvements through memoization and lazy loading, enforce strict type safety with advanced TypeScript patterns, and implement robust testing with Jest and React Testing Library to reduce runtime errors and speed deployments.

I have led product development teams, trained and mentored engineers, and delivered production features like recommendation engines and complex data-stream integrations while maintaining strong UI/UX and accessibility (WCAG) standards.

My background spans data science and ML-adjacent work, including LLM annotation and training, and I routinely apply that domain knowledge to frontend problems, analytics-driven features, and performance optimizations.

Experience

Work history, roles, and key accomplishments

Current

Senior Frontend Engineer

Current

Powerfront

Jan 2023 - Present (3 years 5 months)

Optimized critical rendering paths and implemented strict TypeScript patterns to reduce initial load time by 25% and cut production runtime errors by 40%; built responsive, accessible interfaces and improved Lighthouse scores.

React TypeScript Next.js Redux Vite TailwindCSS Jest Accessibility Performance Optimization

Part-Time LLM Trainer

Turing

Jan 2024 - Oct 2024 (9 months)

Created high-quality prompt-answer pairs and performed rigorous data validation and annotation to improve LLM stability and model performance for backend, frontend, and data science domains.

Data Annotation Data Validation Jupyter Pandas Quality Assurance NLP Next.js Model Training Optimization Model Training AI Model Training Annotations Annotating JavaScript JavaScript (Node.Js Java Javascript (ES6)TypeScript Cypress Solution Architecture

Lead Frontend Developer

Code Informatics

Jan 2020 - Dec 2022 (2 years 11 months)

Trained and led a frontend team, developed new features, optimized frontend performance, and conducted R&D for complex tasks across multiple client products.

React Frontend Architecture Team Leadership Performance Optimization Component Libraries R&D Mentoring

Freelance Software Developer

Essayshark

Jun 2017 - Sep 2022 (5 years 3 months)

Gathered customer requirements and developed applications that met user needs. Built React (Redux) web apps with JavaScript, jQuery, HTML5, and CSS3, and developed Android apps in Java and statistical analysis in Python.

React Redux JavaScript jQuery HTML5 CSS3 Android (Java)Python (Statistical Analysis)

Lead Full Stack Developer

CODE Informatics

Mar 2020 - Mar 2022 (2 years)

Led full-stack development using TypeScript/JavaScript, Go (Golang), React, and Docker while providing technical leadership and code review. Delivered software solutions for web applications.

Fullstack Development TypeScript JavaScript Go (Golang)React Docker Code Review Technical Leadership

Junior Software Engineer

Care Pvt Ltd

Jan 2018 - Dec 2020 (2 years 11 months)

Shifted from backend Java Spring Boot training to frontend React development; built reusable components, custom designs, and implemented security assessments for third-party integrations.

React Spring Boot CSS Component Design Security Analysis Frontend Development

Lead Frontend Developer

Diamatics CSA LLC

Led product development, defined technical roadmaps, implemented robust API error handling and deployed a recommendation engine that increased average order size by 7%.

React React Query SWR Jest Error Handling Roadmapping