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Give me something to build, fix or improve in Bubble and I’ll get it done then show you how I did it…
100+ founders and businesses helped!
Award winning, Bubble Certified developer.
Based in Canary Wharf, London (happy to meet in person).
With 8+ years building projects in Bubble, my boutique Bubble agency was awarded best nocode software development agency 2024 and I'm personally a Bubble Certified developer.
Portfolio of clients small and big like the YMCA
✔️ UI Design
✔️ Bubble/React Development
✔️ Testing & quality assurance
✔️ Ongoing support, fixes & maintenance
PLUS: I’ve built and sold my own startups so can offer advice on marketing strategies if relevant.
Working with me you’ll also get the benefit of my team member Elliot (UK based), giving you the fast communication speed of a freelancer and the reliability/availability of a small, focused agency.
New to Upwork, not new to the industry (see portfolio below!)
No hassle. No surprises. No drama.
United Kingdom
$35/hr
$1K+ earned
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What started as a passion for solving complex coding challenges has evolved into 7+ years of building intelligent, scalable systems that help businesses automate operations, increase conversions, and grow faster.
I specialize in AI-powered automation, GoHighLevel (GHL) systems, and full-stack SaaS development — helping startups and businesses streamline workflows and eliminate manual work through smart technology.
✅ What I Can Help You With
• AI Development & Automation
AI chatbots, AI assistants, workflow automation, recommendation systems, and intelligent business tools.
• Full-Stack Development
Scalable web applications using React, Next.js, Node.js, TypeScript, Laravel, and PHP — from MVPs to enterprise SaaS platforms.
• GoHighLevel (GHL) CRM Automation
Pipeline setup, workflows, triggers, funnel automation, lead nurturing systems, and third-party integrations.
• Funnels & Conversion Systems
High-converting funnels, lead capture systems, automated follow-ups, and customer journeys designed to improve conversions.
• Cloud & API Integrations
AWS infrastructure, custom APIs, payment integrations, and automation between multiple platforms and services.
• Industry Experience
Healthcare (HIPAA-compliant systems), Fintech, Real Estate, Legal Tech, and service-based businesses.
📌 Recent Highlights
• Built AI-powered chatbots and virtual assistants for SaaS businesses to improve customer engagement and support.
• Developed a multilingual coaching platform with AI features, automated invoicing, and Stripe/PayPal integrations.
• Customized and optimized CRMs including GoHighLevel, HubSpot, Zoho CRM, SuiteCRM, and SuiteDash to improve workflow efficiency and lead management.
Clients describe me as proactive, reliable, and outcome-focused. I don’t just build applications — I create scalable systems that save time, reduce operational overhead, and support long-term business growth.
Whether you need AI automation, a GoHighLevel setup, or a full-stack SaaS platform, I can help turn your idea into a reliable, production-ready solution.
Tech Stack:
Python, Django, React.js, Next.js, Node.js, TypeScript, Laravel, PHP, AWS, PostgreSQL, MongoDB, MySQL, Stripe, PayPal, API Integrations, GoHighLevel, HubSpot, Zoho CRM, SuiteCRM, AI Automation, Chatbots, SaaS Development
Danish K.
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$50/hr
$0 earned
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Hello,
I help you ship production-ready web apps and automate the manual work slowing you down using React, Next.js, Python, TypeScript, and AI agent workflows.
Recently, I've been focusing on developing full-stack SaaS products and integrating them with AI/LLM workflows to reduce repetitive tasks from hours to minutes.
Whether you're a startup building your first product, a small business looking to streamline operations, or an agency needing reliable dev support, I focus on practical solutions that work in production, not just in a demo.
What I can help you with:
Frontend development with React, Next.js, Vue.js, Nuxt.js, Tailwind CSS
Backend services and APIs with Python, Django, FastAPI, Node.js
TypeScript-based full-stack applications
Workflow automation and integrations
AI agent development and LLM integrations
Workflow Automation with n8n, HubSpot, Zapier
How I work:
- I ask questions before I write code fewer surprises later
- Clean, documented, maintainable systems, not just working ones
- I flag risks and tradeoffs early instead of after you've paid for the wrong solution
Have a project in mind?
Send me a message with what you're building, I'll tell you honestly whether I'm the right fit before we start.
United Kingdom
$20/hr
Available now
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I have around 12+ years of experience in software development. I have worked as a project manager, lead, as well as a developer for multiple projects on location-based, augmented reality, product catalog, and navigation-based products and apps.
Having worked on all phases of project/product development from requirements gathering, building a mobile app/website from the ground up to problem-solving and support, I can independently take a task to completion.
I have led a medium-sized development team. My responsibility entails overseeing a range of critical projects from conception to delivery.
I have strong skills in proactively managing important and time-sensitive projects, developing innovative solutions to critical problems, and working collaboratively with other team members to establish an efficient and effective system of operation.
$60/hr
$90 earned
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🔴 I don’t just build apps, I create intelligent, automated, and scalable systems that solve real business problems. 🔴
With over 7 years of experience in Full-Stack Development, I help businesses develop, automate, and optimize their SaaS platforms, intelligent workflows, and AI-powered applications using n8n, LangChain, Zapier, Make.com, Node.js, Python, and AWS.
💡 How I help businesses succeed:
✔ Build scalable SaaS & enterprise-grade systems – Designed for automation, performance, and real-world impact.
✔ Automate complex workflows & integrate APIs – Replace manual tasks with smart flows using n8n, REST, GraphQL, and Webhooks.
✔ Deploy intelligent AI agents – Use LangChain and LLMs to build context-aware chatbots, assistants, and decision engines.
✔ Optimize performance & reduce ops cost – Efficient data pipelines, scalable APIs, and containerized cloud deployment with Docker.
✔ Deliver secure payment & data systems – Build with compliance in mind, integrating Stripe, PayPal, and end-to-end encryption.
🔹 𝐑𝐞𝐚𝐥-𝐖𝐨𝐫𝐥𝐝 𝐈𝐦𝐩𝐚𝐜𝐭 (𝐏𝐚𝐬𝐭 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬):
✅ Reduced task handling time by 60% using custom n8n automations for a SaaS company.
✅ Improved customer support efficiency with a LangChain-based bot trained on internal docs.
✅ Secured data pipelines for a healthcare client using Python, AWS S3, and JWT-based auth.
✅ Boosted team productivity by 40% by integrating Slack, Notion, and Google APIs into a unified dashboard.
✅ Cut deployment overhead by 50% by containerizing multi-service apps with Docker and deploying to AWS ECS.
💡 What makes me different?
Unlike traditional developers, I specialize in combining automation, AI, and scalable architecture. My focus is delivering performance-driven, cost-effective solutions that evolve with your business needs.
🔴 AI-Driven Full-Stack Development
Fluent in building smart applications using Node.js, LangChain, and Python — with a strong focus on LLM integration, API orchestration, and backend intelligence.
🔴 Deep Automation Expertise
I go beyond basic scripts and build dynamic, branching automations with tools like n8n, integrating everything from CRMs and APIs to LLMs and databases.
🔴 Performance & Scalability
Whether it’s Python services, Express APIs, or automation flows — I ensure fast response times, efficient logic, and stable scaling across use cases.
🔴 Chatbot & API Integration
I craft AI chatbots that understand business context, connect with real data, and act through APIs. From REST to GraphQL to vector DBs — I handle complex integrations seamlessly.
🔴 Clear Communication
I provide regular progress updates, proactive solutions to blockers, and break down technical concepts so clients always know where things stand.
🔴 User-First Development
Even backend automation needs great UX. I make sure the systems I build are not only efficient but also intuitive, manageable, and well-documented.
🔴 Agile & Collaborative
Familiar with tools like Jira, Trello, and Git, I work fluidly with teams or solo to deliver in agile sprints and adapt to evolving product needs.
🔴 Documentation and Transparency
I maintain thorough technical documentation and clear flow diagrams, making it easy to understand, extend, or audit the systems I build.
🔴 Reliable and Deadline-Oriented
I respect timelines and aim for precision — no surprises, just consistent delivery of well-tested, scalable solutions.
Let’s talk about how I can help automate your operations, scale your platforms, and bring your ideas to life with intelligent backend systems.
🟧KEY WORDS
Full-Stack Development, Automation Engineering, AI Chatbot Development, n8n, LangChain, Zapier, Make.com OpenAI Integration, Node.js, Python, LLM-Powered Apps, SaaS Platforms, REST APIs, GraphQL, Workflow Automation, Scalable Architecture, API Integration, Docker Deployment, AWS ECS, Serverless Frameworks, NLP Applications, Secure Coding, Data Pipelines, Vector Databases, Backend Optimization, Microservices, Slack & Notion Bots, Custom Automation Tools, Performance Tuning, Technical Documentation, Modular System Design, Real-Time Data Flows, Cross-Platform Compatibility, Client-Facing Solutions, Agile Development, Productivity Engineering, DevOps Ready Systems, Problem Solving, Backend Logic, Cost-Effective Deployments, Cloud-Native Development, Scalable AI Infrastructure
$50/hr
Offers consultations
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I build digital twins, industrial 3D systems, and operational software for teams working with complex real-world assets, products, and environments.
My work usually sits where 3D, data, and workflow need to come together in one usable system. That includes digital twin platforms, product and engineering configurators, spatial tools, and custom platforms designed for real production use.
I lead Infinitus Interactive and work hands-on across architecture, development, and delivery. I have 10+ years of experience building real-time 3D applications and software platforms that need to perform reliably under real-world conditions.
Typical projects include:
- Digital twin platforms for asset visibility, operations, and decision support
- Industrial 3D applications for inspection, planning, training, and review
- Product and engineering configurators connected to real business rules and technical data
- Custom operational platforms that bring together users, data, and workflows in one clear system
- Unity-based tools and pipelines for processing and managing large-scale 3D environments
I am usually a strong fit when:
- the problem is complex and off-the-shelf tools are not enough
- 3D needs to connect to data and workflows, not just look impressive
- the system needs to be clear, maintainable, and ready for production
- you need someone who can think at product level and still deliver hands-on technically
My approach is straightforward: understand the problem clearly, reduce risk early, and build in stages that are practical, visible, and easy to validate.
If you are building a digital twin, industrial 3D platform, configurator, or other engineering software, send me a message with your goals, constraints, and timeline.
Portfolio: https://infinitusinteractive .com
$55/hr
$60K+ earned
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I'm a full stack developer with deep expertise in building fast, scalable web and mobile applications using Node.js, Rust, and TypeScript—supported by modern frameworks like React, Next.js, React Native, Astro, and expo.dev.
With 15+ years in software engineering, I develop end-to-end solutions—from backend APIs to frontend interfaces and cross-platform mobile apps. I also leverage WebAssembly (WASM) and Rust for high-performance browser and edge computing use cases.
🧠 Core Tech Stack
Frontend: React, Next.js, Astro, Tailwind CSS, TypeScript, WASM, SSR
Mobile: React Native, expo.dev (Android & iOS)
Backend: Node.js (Astro/Express/NestJS), Rust (Actix Web, Axum, Dioxus, Yew, eGUI), PostgreSQL, Redis, gRPC, Python (including integration with LLM)
Cross-platform runtimes: WASM (Rust, C + Emscripten), SSR/ISR with Next.js
Tooling & APIs: REST, GraphQL, Vite, SWC, esbuild, emscripten
🚀 Full Stack Use Cases I Deliver
Production-grade web dashboards and SPAs
Mobile apps with cloud syncing and offline mode
WASM-based frontend microservices and plugins
Serverless or containerized backends on AWS/GCP/Azure
Monorepo architectures with shared components across web/mobile
🌐 Secondary Strength: DevOps & Cloud Architecture
I also bring 8+ years of DevOps experience with expertise in:
CI/CD: GitLab CI, GitHub Actions, Jenkins, Azure DevOps
IaC & Container Orchestration: Kubernetes, Helm, Docker, Podman, ArgoCD, Terraform/OpenTofu
Clouds: Azure (4+ yrs expert), AWS (7 yrs), GCP (3 yrs)
DevSecOps, policy-as-code, and environment automation for complex orgs (Telecom, Banking, Automotive)
✅ Industries Served
Telecom, Banking (Genesys Cloud CX as Code), Automotive (HIL integrations), Fintech, SaaS, and Startups.
Let's build something powerful together: fast, beautiful, and built to scale!
$20/hr
100%
Job Success
$9K+ earned
Available now
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I'm Muhammad Bilal, a Senior Software Engineer with 7+ years of experience taking products from architecture to production. Not prototypes. Not demos. Real systems that handle real users, real data, and real pressure.
I've worked across the full stack — AI/LLM backends, REST APIs, cloud infrastructure, and frontend interfaces — so I can own a project end-to-end or drop into a specific layer where you need the most help.
Who usually reaches out to me:
Teams who've hit a ceiling. Their AI feature isn't reliable enough for production. Their API is starting to buckle under load. Their codebase grew faster than their architecture. Or they simply need a senior engineer who can think independently and deliver — not someone who needs a detailed spec for every task.
If any of that sounds familiar, we'll likely work well together.
What I build:
1. AI & LLM Systems
Chatbots, RAG pipelines, semantic search, and intelligent features powered by OpenAI (GPT-4, GPT-4o) and modern LLM tooling. I build AI features that are production-ready — not just impressive in a notebook. That means proper context management, retrieval pipelines that actually return relevant results, vector search with Qdrant or Milvus, and fallback handling that keeps things running when models misbehave.
2. Scalable Backend Systems
High-performance APIs built with Django, FastAPI, and Flask. Clean architecture, well-structured codebases, and APIs designed to grow with your product — not fight it. I've built everything from simple CRUD services to complex multi-tenant platforms with role-based access, async job processing, and caching layers using Redis.
3. Full-Stack SaaS Products
I can take a product from whiteboard to deployment. Frontend in React.js or Vue.js — component-driven, responsive, and built with real UX in mind. Backend in Python. Database design in PostgreSQL or MongoDB. Deployed on AWS. I've done this end-to-end multiple times and I know where the hard parts are before we hit them.
4. Data Pipelines & Automation
ETL pipelines, Kafka streaming, web scraping, and real-time data processing. If your business runs on data movement — ingesting it, transforming it, or acting on it — I've built systems at that layer too.
5. Cloud & DevOps
AWS (EC2, S3, RDS, Lambda), Docker, CI/CD pipelines, environment configuration, and deployment workflows that don't require a manual every time. I treat infrastructure as part of the product, not an afterthought.
The way I work:
I think about what you're actually trying to build, not just the ticket in front of me. I'll suggest better approaches when I see them, flag risks before they become problems, and give you honest timelines instead of the ones you want to hear.
Some of the most valuable conversations I've had with clients started with "here's why I wouldn't build it that way."
You'll always know where things stand. I give regular updates, communicate blockers early, and don't disappear between milestones.
A few things clients have said made the difference:
That I take ownership. That I communicate like a partner, not a contractor. That the code I deliver is clean enough that the next developer doesn't need to rewrite it. And that I push back when something won't scale — before we've already built it.
If you're looking for someone who can design, build, and ship a complex AI or full-stack system with minimal hand-holding — feel free to reach out. I'm happy to look at what you're working on and give you an honest read on whether I'm the right fit.
Python · Django · FastAPI · Flask · React.js · Vue.js · OpenAI API · GPT-4 · RAG · LLMs · Vector Search · Qdrant · Milvus · PostgreSQL · MongoDB · Redis · Kafka · AWS · Docker · CI/CD · REST APIs · Microservices · SaaS Development · Data Engineering · Web Scraping · ETL Pipelines
Muhammad B.
has worked
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$35/hr
$1K+ earned
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If you need a developer who understands both engineering and real-world fintech constraints, I can help you design and build systems that are secure, scalable, and production-ready.
I’m a Full Stack Developer with 7 years of experience:
• 5+ years building fintech and enterprise systems inside a Fortune 500 environment
• 2 years working in a startup on the MERN stack, shipping fast and iterating quickly
My work typically involves building reliable backend services, clean frontends, and AWS-based architectures that can scale without surprises.
Core technical strengths:
• JavaScript / TypeScript / Node.js / React / Vue.js
• PHP and modern web application development
• SQL & NoSQL databases (including MongoDB)
• AWS (EC2, S3, Lambda, EventBridge, Aurora, CloudWatch, CodeDeploy)
• Docker, RabbitMQ, distributed systems patterns
Fintech & compliance domain knowledge:
• KYC / AML workflows
• PEP and risk-related checks
• API integrations and data validation logic
• Designing systems with auditability and reliability in mind
I’m comfortable working on:
• New product builds
• Scaling or refactoring existing systems
• API-heavy platforms
• Performance and architecture improvements
• Debugging complex production issues
Apart from fintech, I have also delivered following projects:
• AI SaaS product (CVailor) using LLM pipelines via OpenRouter (Next.js, React, Supabase, Stripe, Railway).
• Biomarker-oriented application using React, AWS, Node.js
• Hardware-integrated system (automatic dispenser) with React + AWS + Node.js
How I work:
• Clear communication, no disappearing
• Practical decisions over trendy ones
• Focus on stability, maintainability, and business impact
• Respect for deadlines and existing codebases
If you’re building something that needs to work properly under real usage, not just look good in a demo, let’s talk.
$20/hr
100%
Job Success
$1K+ earned
Available now
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# Full Stack Developer | SaaS, AI & Cloud Solutions
I help startups and businesses build scalable SaaS platforms, AI-powered applications, and enterprise software that are secure, high-performing, and built for long-term growth.
10+ years of experience delivering full-stack applications with React, Angular, Node.js, Laravel, and cloud technologies, plus 5+ years building AI-powered solutions using Python, OpenAI, and LLMs.
## What I Build
✔ SaaS Platforms & Multi-Tenant Applications
✔ AI Applications, AI Agents & OpenAI Integration
✔ Enterprise Business Systems
✔ Custom Web Applications
✔ REST APIs & Microservices
✔ Cloud-Native Solutions (Azure & AWS)
✔ DevOps, CI/CD & Docker Deployments
✔ Database Architecture & Performance Optimization
## Technology Stack
Frontend: React.js, Next.js, Angular, Vue.js
Backend: Node.js, NestJS, PHP, Laravel, Python
Databases: PostgreSQL, SQL Server, MongoDB
Cloud & DevOps: Azure, AWS, Docker, Kubernetes, CI/CD
## What You Can Expect
• Clean, maintainable, and scalable code
• Secure and high-performance architecture
• Clear communication and proactive collaboration
• Reliable delivery with attention to quality
• Business-focused solutions that support long-term growth
Whether you need to build a new SaaS product, modernize an existing application, develop enterprise software, or integrate AI into your business, I can help deliver a solution that is scalable, reliable, and ready for production.
If you're looking for a Full Stack Developer who combines strong engineering expertise with a business-first approach, let's connect.
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