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Tazeen F.
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Tazeen F.

Full-Stack AI Engineer | React, Node.js, Python | SaaS

"𝗔𝗜 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝘀" 𝗯𝘂𝗶𝗹𝗱 𝗳𝗿𝗮𝗴𝗶𝗹𝗲 𝗔𝗣𝗜 𝘄𝗿𝗮𝗽𝗽𝗲𝗿𝘀 𝘁𝗵𝗮𝘁 𝗰𝗼𝗹𝗹𝗮𝗽𝘀𝗲 𝘂𝗻𝗱𝗲𝗿 𝗿𝗲𝗮𝗹 𝘁𝗿𝗮𝗳𝗳𝗶𝗰. 𝗜 𝗯𝘂𝗶𝗹𝗱 𝗯𝗮𝘁𝘁𝗹𝗲-𝘁𝗲𝘀𝘁𝗲𝗱, 𝘇𝗲𝗿𝗼-𝗯𝗹𝗼𝗮𝘁 𝗔𝗜/𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 𝘁𝗵𝗮𝘁 𝗰𝘂𝘁 𝗯𝘂𝗴𝘀 𝗯𝘆 𝟱𝟬% 𝗮𝗻𝗱 𝗮𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝘀𝗰𝗮𝗹𝗲 𝗼𝗻 𝗱𝗮𝘆 𝗼𝗻𝗲. I am a Full-Stack AI Engineer with 8+ years of experience building AI-powered applications, SaaS platforms, workflow automations, and scalable web products. I've delivered 20+ production projects, improved application performance by 40%, reduced production bugs by 50%, and helped startups ship faster with clean, maintainable architecture. What I can help you build: - AI Applications - AI Assistants & Chatbots - OpenAI API Integrations - GPT-Powered Applications - AI Workflow Automation - Internal AI Tools - AI Content Generation - Business Process Automation - LLM Integrations - SaaS Products - Multi-Tenant SaaS Platforms - Customer Portals - Admin Dashboards - Subscription & Billing Systems - Analytics Platforms - Internal Business Tools - Role-Based Access Control - MVP to Enterprise Scaling - Full-Stack Development I build complete, production-ready systems,from responsive frontends to scalable backend services and cloud infrastructure. Frontend: React Next.js TypeScript JavaScript Backend: Node.js Express.js Python Databases: PostgreSQL MongoDB Cloud & DevOps: AWS Docker API Development & Integrations REST APIs GraphQL OAuth JWT Authentication Payment Gateway Integration CRM Integrations Third-Party APIs Webhooks Why clients work with me I help teams make better technical decisions. Whether you're launching an MVP, modernizing an existing platform, or integrating AI into your product, I focus on building software that's scalable, maintainable, and ready for real users. You can expect: - Clear communication - Fast iterations - Clean, maintainable code - Scalable architecture - Reliable delivery - A product-first mindset Results: 40% improvement in application performance Spearheaded optimization initiatives for existing software solutions, leading to a 40% improvement in application performance and a 15% increase in customer satisfaction. - Product Manager, TCG 50% fewer production bugs Implemented best practices in code quality and testing, reducing production bugs by 50% while improving deployment frequency by 30%. - Engineering Lead, TCG 25% higher user engagement Implemented OAuth and JWT security protocols, conducted GDPR and PCI-DSS compliance audits, and proposed product improvements that increased engagement by 25% while reducing bounce rates by 30%. - Senior Product Manager, Invisible Technologies Technologies: AI: OpenAI API, GPT, AI Integration, AI Automation, LLM Applications Frontend: React, Next.js, TypeScript, JavaScript Backend: Node.js, Express.js, Python Databases: PostgreSQL, MongoDB Cloud: AWS, Docker APIs: REST API, GraphQL, OAuth, JWT Tools: Git, GitHub, Jira, Agile Development If you're looking for a senior engineer who can take ownership, communicate clearly, and build reliable AI or SaaS products that are ready for production, not just prototypes, I would be happy to discuss your project. Send me a message or an invite, and let's build something great.

🇺🇸Woodbridge, United States$45/hr100% JSS5.00 (2)Since Mar 2026

Earnings and projects

MRR
$398

Last 6 months ÷ 6

World#87,100 / 412k
🇺🇸Country#12,747 / 62.1k
Revenue, last 30 days
$0

Last 6 months: $2.4k

Total earnings
$2.4k

Billed in all: $2.5k

World#317,342 / 412k
🇺🇸Country#49,072 / 62.1k
Per project
$1.2k

$1.2k in the last 6 months

World#110,015 / 412k
🇺🇸Country#18,748 / 62.1k
Projects, last 6 months
2
50% fixed50% hourly
World#88,921 / 412k
🇺🇸Country#11,762 / 62.1k
Projects in all
2
50% fixed50% hourly
World#328,889 / 412k
🇺🇸Country#47,959 / 62.1k

Earnings, last 30 days

$2.5kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$2,450$2,500$2,550$2,600Oct 9Oct 24Nov 8

Skill rankings: Top 16% in ExpressJS

Ranked by MRR among everyone on Upwork with the skill.

  1. #597GraphQL3,403 freelancers · 🇺🇸 #40Top 18%
  2. #917ExpressJS5,651 freelancers · 🇺🇸 #46Top 16%
  3. #1,204REST API5,062 freelancers · 🇺🇸 #99Top 24%
  4. #1,240Tailwind CSS6,978 freelancers · 🇺🇸 #70Top 18%
  5. #1,594AI App Development4,708 freelancers · 🇺🇸 #179Top 34%
  6. #1,622Amazon Web Services7,488 freelancers · 🇺🇸 #215Top 22%
  7. #1,650SaaS Development5,201 freelancers · 🇺🇸 #126Top 32%
  8. #1,656Docker8,761 freelancers · 🇺🇸 #103Top 19%