Nivyan ButtSenior Frontend Engineer
Profile

Frontend Engineer with 3+ years of expertise in JavaScript (ES6+), TypeScript, React, and Next.js, delivering scalable, cross-browser-compatible web applications. Proven track record architecting reusable component libraries, implementing CI/​CD pipelines, and collaborating with cross-functional remote teams to ship high-performance user experiences

Professional Experience

Independent Senior Full-Stack Freelancer

Jan 2020 – Jun 2025 | Remote

Successfully delivered 20+ end-to-end software solutions, including Hospital Management Systems and complex E-commerce ecosystems across Upwork and Fiverr.

  • •Managed the full SDLC for a diverse global clientele, maintaining a 100% on-time delivery rate and a consistent 5-star performance rating.
  • •Engineered high-conversion React and Next.js platforms, translating Figma designs into performant code that drove a 25% average increase in client conversion.
  • •Architected scalable backend systems using Python and Java, implementing robust database schemas and secure API integrations for enterprise-grade applications.
  • •Consulted on technical strategy and UI/​UX best practices, bridging the gap between business goals and technical execution for 20+ product launches.
  • •Technologies: React, Next.js, Python, Java, PostgreSQL, Figma, RESTful APIs

    • Senior Software Engineer

    Arithmiks⁠
    2022 – Jan 2026 | Lahore, Pakistan

    Bilingual (Arabic/English) platform for automated transcription and AI-driven insight extraction.

  • •Built various full-stack features, including a responsive RTL/LTR layout system to support seamless bilingual UI/​UX.
  • •Integrated Nylas API to build a high-performance internal calendar system, streamlining meeting scheduling and automated bot deployment.
  • •Ensured cross-browser compatibility across Chrome, Firefox, and Safari using Playwright E2E testing.
  • •Technologies: React, Node, Playwright, MSW, i18next, Zod, Better Auth, Drizzle, Docker, Nylas, Listmonk

    • AI-powered loan management ecosystem orchestrating secure workflows for 200+ brokers and lenders.

  • •Architected a multi-tenant system with granular RBAC, ensuring SOC 2-compliant access and security for lenders and borrowers.
  • •Engineered an AI-driven fraud detection engine using Gemini to score high-risk applications and match borrowers with optimal loan products.
  • •Automated document extraction by integrating AWS Textract, reducing manual processing time by 70%.
  • •Optimized complex state management using Redux to handle data-heavy loan application workflows and real-time UI updates.
  • •Technologies: Next.js, Tailwind CSS, Redux, Django, PostgreSQL, AWS Textract, Gemini AI, JWT, Docker

    • High-scale lead generation platform connecting 50+ dealerships with data-driven purchase insights.

  • •Directed a team of 2 engineers to architect a high-scale marketplace, managing the full SDLC and end-to-end delivery for 50+ enterprise dealerships.
  • •Engineered a high-performance frontend architecture using Next.js, optimizing data-fetching and rendering for 7M+ vehicle records.
  • •Translated business requirements into technical roadmaps, delivering a conversion-optimized UX that generated 15+ dealer sales in the first month.
  • •Architected real-time data visualizations using Chart.js and WebSockets to provide dealerships with live inventory and lead tracking.
  • •Technologies: Next.js, Tailwind CSS, Slate.js, Chart.js, Django, PostgreSQL, AWS S3, WebSockets

  • •Engineered a browser-based CAD tool using KonvaJS, increasing design efficiency by 60% and reducing calculation errors by 85%.
  • •Developed complex vector-based features and automated PDF blueprint generation for 500+ daily active users.
  • •Conducted code reviews and maintained CI/​CD pipelines to enforce engineering best practices across a remote team
  • •Technologies: React.js, TypeScript, KonvaJS, Redux, PdfJS, DND Kit, Styled Components, Django

    • Metro-360 Data Platform | Full-Stack Developer

  • •Architected scalable data pipelines handling 2M+ daily records from BigQuery and SFTP, ensuring data integrity across distributed sources.
  • •Optimized backend processing using Python (Pandas/NumPy), reducing complex data transformation cycles from hours to minutes.
  • •Technologies: React, Python, Pandas, NumPy, Flask, PostgreSQL, BigQuery

  • •Launched a multi-sided healthcare platform featuring a custom case referral system and automated patient-provider matching.
  • •Engineered a mobile-first architecture that achieved 99% compatibility, significantly expanding accessibility for 1,000+ patients.
  • •Technologies: Next.js, Tailwind CSS, Zod, Form Management, RESTful APIs

  • •Developed a high-fidelity 3D garment viewer using Three.js and WebGL, enabling granular real-time customization of textures and meshes.
  • •Engineered a custom shader-based logo placement system, boosting user engagement through realistic material rendering.
  • •Technologies: Next.js, Three.js, WebGL, GLSL (Custom Shaders), 3D Graphics
    • Projects

    DataDash

    AI-Powered Data Analytics & Dashboard Engine
    Mar 2026 – Present

    Engineered a full-stack, language-agnostic data platform enabling users to transform raw SQL databases into actionable visual insights through an AI-integrated workspace.

  • •Architected a dynamic Dashboard Engine with a fully customizable grid layout, supporting real-time data visualization through widgets, charts, and interactive tables.
  • •Integrated Large Language Models (LLMs) to provide a Natural Language-to-SQL interface, allowing non-technical users to perform complex data analysis using plain English.
  • •Developed a comprehensive SQL Query Builder and database explorer that supports schema introspection and automated AI-driven query suggestions.
  • •Implemented a multi-tenant architecture allowing secure database connections and persistent state management for personalized user dashboards.
    • Education

    Bachelors of Science in Computer Science

    National University of Computer and Emerging Sciences
    2019 – 2023 | Lahore, Pakistan

    FSC (Pre-Engineering)

    DPS College
    2017 – 2019 | Okara, Pakistan
    Skills
    Technologies

    AI & ML: LLM Integration (Gemini, OpenAI), Prompt Engineering, Computer Vision (OpenCV), AWS Textract, RAG, Pandas, NumPy

    Languages: JavaScript (ES6+), TypeScript, Python, Java, SQL

    Frontend: React, Next.js, TypeScript. Redux, Tailwind CSS, Three.js/​WebGL, KonvaJS

    Backend: Node.js, Django, Flask, Express, RESTful APIs, WebSockets, GraphQL

    Databases: PostgreSQL, MongoDB, BigQuery, Drizzle, Prisma

    DevOps & Cloud: AWS (S3, EC2, Textract), Docker, NGINX, CI/​CD, Playwright Auth & Security: OAuth, JWT, RBAC, SOC 2 compliance

    Tools

    GIT | GitHub | Notion | Postman | VS Code | Figma | Jira | Shortcut | Trello