You will get Full Stack Saas Development and Production | Full Stack Developer | Python
Project details
Looking for a reliable Full Stack Developer to build fast, scalable, production-ready web applications? I build complete apps that ship, with the deployment handled end to end.
What I Offer:
=> Frontend: React.js, Next.js, TypeScript, Tailwind CSS, responsive and accessible UI
=> Backend: Node.js, Express, NestJS, Python, FastAPI, clean and testable service logic
=> APIs: Secure RESTful APIs, authentication, third-party and payment integrations
=> Databases: PostgreSQL, MySQL, MongoDB, Redis, schema design and migrations
=> Deployment: AWS, Vercel, Docker, Nginx, CI/CD pipelines, custom domain and HTTPS
=> Handover: Full repo access, admin credentials, and documentation. No lock-in
Industries Served:
• SaaS and Internal Business Platforms
• Dashboards and Admin Panels
• Booking and Scheduling Systems
• E-commerce and Marketplaces
• AI-Powered Apps and Chatbots
I am a Lead Software Engineer with six years of production experience. I focus on performance, security, and code the next developer can actually read.
Message me before ordering with a short description of your idea and I will tell you honestly which tier fits.
What I Offer:
=> Frontend: React.js, Next.js, TypeScript, Tailwind CSS, responsive and accessible UI
=> Backend: Node.js, Express, NestJS, Python, FastAPI, clean and testable service logic
=> APIs: Secure RESTful APIs, authentication, third-party and payment integrations
=> Databases: PostgreSQL, MySQL, MongoDB, Redis, schema design and migrations
=> Deployment: AWS, Vercel, Docker, Nginx, CI/CD pipelines, custom domain and HTTPS
=> Handover: Full repo access, admin credentials, and documentation. No lock-in
Industries Served:
• SaaS and Internal Business Platforms
• Dashboards and Admin Panels
• Booking and Scheduling Systems
• E-commerce and Marketplaces
• AI-Powered Apps and Chatbots
I am a Lead Software Engineer with six years of production experience. I focus on performance, security, and code the next developer can actually read.
Message me before ordering with a short description of your idea and I will tell you honestly which tier fits.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$200
|
Standard
$400
|
Advanced
$600
|
|---|---|---|---|
| Delivery Time | 3 days | 4 days | 14 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Frequently asked questions
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RS
Rida S.
Aug 18, 2026
Senior Full-Stack Developer (React/TypeScript + Python/FastAPI) for Multi-Tenant SaaS Platform
Khizar built our multi-tenant SaaS platform end to end, React/TypeScript frontend on a FastAPI and Postgres backend, plus the AI assistant feature. Strong on architecture decisions, communicated clearly every week, and delivered clean documented code with CI/CD in place. Highly recommended.
About Khizar
FullStack React, Python, AWS | AI Engineer
Multan, Pakistan - 2:31 am local time
✅ Production AI I've built:
- RAG pipelines — semantic chunking, hybrid retrieval (vector + keyword), reranking, and eval harnesses for faithfulness and retrieval accuracy
- LLM-powered copilot and triage workflows deployed to production users
- AWS serverless AI systems — Bedrock, Textract, Lambda, DynamoDB (e.g., automated resume-screening pipeline)
- Guardrails that matter: grounding checks, prompt-injection defenses, token cost controls
✅ Full-stack systems I've built:
- Scalable React/TypeScript frontends — micro frontend architectures (single-spa, Nx) and shared design systems used across multiple product teams
- Distributed backends — Kafka event streaming, Temporal workflow orchestration, dead letter queues, PostgreSQL, Redis
- REST and event-driven APIs with Node.js and Python (FastAPI)
- Observability from day one — OpenTelemetry tracing, structured logging, alerting
✅ Best fit if you're thinking:
- "Our RAG demo works, but the answers are wrong or ungrounded in production."
- "We need an AI feature inside our existing React/Next.js product — not a separate toy."
- "We need one senior engineer to build the whole thing — frontend, backend, and AI — without a team of hand-offs."
- "Our LLM costs are unpredictable and we have no evals, just vibes."
✅ Stack:
GenAI: Claude, OpenAI, AWS Bedrock, LangChain, LangGraph, RAG, vector DBs (pgvector, OpenSearch)
Frontend: React, Next.js, TypeScript, micro frontends, design systems, Tailwind
Backend: Node.js, Python (FastAPI), Kafka, Temporal, PostgreSQL, Redis, DynamoDB
Cloud: AWS (Lambda, API Gateway, SQS, ECS), Docker, CI/CD, OpenTelemetry
✅ How I work:
- Cost and latency projections before we build, evals before we ship
- Clean, documented code your team can maintain after I'm gone
- Clear communication, honest estimates, overlap with US/EU hours
Message me with your problem and I'll respond with a concrete approach, not a template.
Steps for completing your project
After purchasing the project, send requirements so Khizar can start the project.
Delivery time starts when Khizar receives requirements from you.
Khizar works on your project following the steps below.
Revisions may occur after the delivery date.
Kickoff and scope confirmation
I review your requirements and any files you sent, then write back a short scope summary listing exactly what I will build and deliver. You approve it before I write a line of code, so there is no ambiguity later.
Environment and infrastructure setup
I set up the repository, hosting, database, and environment configuration. Your domain is connected with HTTPS at this stage, so you have a live URL to watch from day one instead of waiting until the end.