👉 I am a Backend Developer, with around 3+ years of experience in development. I've been working on Go open-source and private company projects. I've also experienced different databases, i.e., MySQL, Postgres, MongoDB, CockroachDB, Clickhouse, Sqlite3, DynamoDB, and few others also. I am very passionate about my skills, and I keep developing them with time! In the past years, I've worked for around 15+ different clients, and with around 5 different Startups/Companies. Regarding my main skills and characteristics, those are listed below: 👇 🔵 Go Frameworks: GIN, Echo, Gorilla Mux, Fiber 🔵 Python Frameworks: Django, Flask, FastAPI, Tkinter 🔵 JavaScript Frameworks: NodeJS, ExpressJS 🔵 Services I have worked on: Rest & CRUD-API | Backend Development with Clean Architecture | Micro-Services | API's and Stripe Integration | JWT Authentication & Authorization 🔵 Containerization & Deployment: Docker, VPS Deployment, Lightsail, EC2, DigitalOcean 🔵 CI/CD: Github Actions, Gitlab CI/CD Setup 🔵 Cloud-Side: I'm comfortable with deployments, and making up a CI/CD pipeline, have experienced Lightsail, VPS, DigitalOcean, EC2, and few others 🔵 Others: Good Understanding of AWS S3, EC2 Instances, Lambdas & Aurora v2 | Basic Knowledge of Google Cloud Platform My Tech Stack: ⚡ ✅ Golang (🟣Backend Development) ✅ Python (🟣Backend Development) ✅ NodeJS (🟣 Backend Development) ✅ Docker (🟠Deployments & Containerization) ✅ Aws (🟠Services & Deployments) ✅ GitHub Actions (⚫Automation) ☑️ GitHub Account: github.com/huzaifamk 🔺 Currently learning Web3, Solidity, Rust and AI/Machine Learning

With over 17 years of experience, I specialize in developing complex web and mobile applications. I have worked with Fortune 500 clients, including AT&T, British Telecom, Century Link, Lumen Technologies, Vodafone, UBS, and Infosys. My primary expertise lies in the MERN stack (MongoDB, ExpressJS, ReactJS, NodeJS), ColdFusion, AWS, serverless architecture with AWS Lambda functions, socket programming, game development, and telegram mini apps. Additionally, I possess skills in PHP, WordPress, and other related technologies like JavaScript, HTML, and CSS. Below are few points to consider: 1. Completed more than 9,000 hours (+ few additional fixed priced projects) at UpWork 2. Earned “TOP Rated Plus badge” with “100% Job Success Score.” 3. Member of Dev Team Builder Group, formed by Upwork Core Team 4. Many testimonials from previous clients. I can also provide their contact information. They will be more than happy to provide genuine feedback. Educational Qualifications: Computer Science Engineer Expertise: Frontend: React JS (Next Js & Gatsby), Vue JS, Java Script, PHP, ColdFusion, HTML, CSS Backend: Node JS, PHP, ColdFusion, Serverless Architecture with AWS lambda functions, Socket Programming Frameworks: NextJS, Gatsby, Codeigniter, Laravel, Fusebox, Cold Box, FW1, Bootstrap Databases: MongoDB, DynamoDB, Oracle, MY SQL, SQL Server, ClickHouse, PostgreSQL CMS: WordPress, Shopify Cloud Platform: AWS Payment Gateways: Stripe, Paypal, Authorize.net, Payoneer, Chargebee, Razorpay Third-Party Integrations: Quickbooks, Salesforce, DocuSign, Mailchimp, Zapier, Bonjoro, Comet Chat, Zendesk, Agora Video SDK, Google Maps, Geofancing etc Design Software Figma

Backend engineer with 12+ years building production fintech systems, now focused on algorithmic trading, market data infrastructure, and quantitative backends. I turn trading ideas into reliable software — backtesting engines, strategy runners, exchange adapters, data pipelines, and charting backends. Where I help: - Algorithmic trading systems (backtesters, live runners, strategy engines, broker/exchange adapters) - Market data infrastructure (OHLCV pipelines, tick storage, time-series DBs, real-time feeds) - Trading UIs & dashboards (candlestick charting, indicators, portfolio views) - Crypto bots (ccxt, Binance, Bybit, DEX integrations, TON) - Fintech backends (neobanks, payment gateways, scoring, onboarding, API gateways) - AI/ML for trading signals (OpenAI, MCP, LangChain, feature pipelines) Why clients hire me: - Simple, observable, production-grade systems — no over-engineering - End-to-end ownership: architecture → code → deploy → monitoring - Track record: $400K+ earned on Upwork, 100% job success, 12+ years in fintech/iGaming/high-load Tech: - Languages: Go, Python, Java, Kotlin, TypeScript, C - Data: PostgreSQL, TimescaleDB, ClickHouse, Redis, MongoDB - Messaging: Kafka, RabbitMQ, NATS, PubSub - Protocols: REST, gRPC, WebSockets, GraphQL - Infra: Docker, Kubernetes, Terraform, AWS, GCP, DigitalOcean DM me for a consultation.

I design and build trading and data platforms end to end — from system architecture and backend services to the frontends traders actually use. I've spent the last 4+ years working in crypto and financial trading, and I know the domain well: exchange APIs, order and balance handling, indicators, backtesting, and the real-time data that ties it all together. I'm the lead developer behind Gainium, a crypto bot-trading platform with live connectors to Bybit, Bitget, KuCoin, and Hyperliquid, plus paper trading and a full backtesting engine. I own the architecture and the bulk of the implementation across backend and frontend. I also designed and built Tickora, a streaming indicator and market-data platform with a strategy screener that ranks trading pairs and delivers signals in real time. And I built Wolo, an AI agent running in production that syncs e-commerce orders into accounting software automatically for a live client. One thing that comes up often in trading work: I have solid experience translating Pine Script strategies into JavaScript/TypeScript, preserving the exact indicator logic (smoothing, incremental updates, edge cases) so backtests and live signals match. What I bring to a project: Architecture — designing systems that handle real-time data, high throughput, and production load without falling over Backend — TypeScript/Node.js, gRPC, REST and WebSocket APIs, exchange and third-party integrations Frontend — React-based trading and data interfaces Data & messaging — MongoDB, ClickHouse, Redis, Redpanda/Kafka; time-series and ingestion pipelines Infrastructure — comfortable owning Docker, nginx, and self-hosted deployments when a project needs it I work best with founders and teams who need someone who can architect a system and build it, not just hand off a diagram. If you're working in crypto, fintech, or real-time data, tell me what you're building — I'm happy to talk it through.

I am Shahzaib, Certified Full Stack React, Node and Ruby on Rails developer with 6+ years of experience. I help startups and growing companies build reliable Ruby on Rails systems, scalable Node.js backends and modern React frontends that can handle real production load, not just prototypes. My focus is simple: build clean, scalable systems that are easy to maintain, perform well under load,and support long-term product growth. I have worked on systems processing large-scale data, high-traffic platforms and AI-integrated applications used in production environments. What I can help you with • Ruby on Rails (Rails 7/8) development and API design • React.js and Next.js frontend development • Node.js backend services and microservices • REST and GraphQL API development • SaaS product development from MVP to scale • AI integration using OpenAI and LLM APIs • Payment systems (Stripe, PayPal) • PostgreSQL and database optimization • AWS deployment, Docker, CI/CD pipelines • Performance tuning and legacy system upgrades Selected Experience ✔ Built an AI-powered SaaS platform handling 700M+ profiles and 20TB+ data using Ruby on Rails, React, ClickHouse and LLM-based search systems. ✔ Developed FinTech API middleware integrating multiple external providers, reducing integration time by 60%. ✔ Scaled a high-traffic web platform supporting 10,000+ concurrent users with stable performance and zero downtime during peak usage. ✔ Built AI-powered learning and automation platforms with real-time chat and sub-2-second response systems. ✔ Delivered SaaS products across FinTech, EdTech and B2B domains from MVP to production scale. Why clients hire me • Strong focus on Ruby on Rails backend architecture and scalability • Clean, maintainable, production-ready code • Clear communication and reliable delivery • Strong ownership from idea to deployment • Experience working directly with founders and startups Let’s work together If you’re building or scaling a Ruby on Rails, React, or Node.js application, I can help you design, build and ship it efficiently. Send me your project details and I’ll guide you on the best technical approach.

Backend Software Engineer specializing in scalable APIs, databases, and performance-critical systems. Experienced with Node.js, Golang, Ruby on Rails (ROR), MySQL/MariaDB, Redis, Clickhouse, Elasticsearch, and production-grade backend architecture.

🚀 15+ years building scalable business platforms with React, Node.js, Python, PHP, PostgreSQL, Mysql, MongoDB, Docker, cloud technologies, REST APIs, payment gateways, and third-party integrations. ⭐ SaaS, CRM & ERP Systems ⭐ FinTech & Investment Platforms ⭐ Admin Dashboards, Analytics & Reporting ⭐ Marketplace & E-commerce Platforms ⭐ REST API Architecture & Development ⭐ Real-Time Applications (WebSockets, Chat, Notifications) ⭐ Mobile Apps (React Native)

Laravel Backend Engineer | APIs, Payment Systems, SaaS & AI Integrations I help startups and businesses build secure, scalable, and maintainable backend systems using Laravel and PHP. With 5+ years of professional experience, I specialize in developing production-ready web applications, REST APIs, payment integrations, and business-critical software. My experience includes working on high-volume production platforms, where I’ve built backend systems for fraud detection, payment processing, dispute management, analytics, and performance optimization. I focus on writing clean, maintainable code and designing solutions that are reliable, scalable, and easy to extend. Services * Custom Laravel application development * REST API development and third-party integrations * Payment gateway integrations * SaaS application development * Admin dashboards and business management systems * Authentication and role-based access control * Webhook development * Queue workers, scheduled jobs, and background processing * Database design and performance optimization * Bug fixing and legacy Laravel maintenance * AI and LLM API integrations * Dockerized development and deployment * Linux server management Technical Skills Backend * Laravel * PHP * MySQL * Redis * REST APIs * Webhooks * OAuth & JWT Authentication Frontend * Blade * Alpine.js * Livewire * JavaScript * Tailwind CSS * Bootstrap Infrastructure * Docker * Docker Compose * Linux * Git * GitHub * GitHub Actions * Nginx Why Work With Me? * Clean, maintainable, and well-documented code * Strong focus on scalability and performance * Experience building production-grade backend systems * Clear communication and reliable delivery * Comfortable working independently or as part of an existing team Whether you need a new Laravel application, backend API, payment integration, or ongoing development support, I am committed to delivering reliable solutions that meet your business needs.

Results-driven AI Solutions Architect, Software Developer and Process Automation specialist with a proven track record of 3,000+ automations that cut operating expenses and lift performance through the strategic application of cutting-edge technology. I bring together the work of an AI architect, a senior developer, and a program manager into a single role — designing, building, and delivering complete AI systems. My commitment goes beyond merely getting the job done – I seek to get intimate with your business, understanding its ins and outs to craft creative solutions that reduce overhead costs and increase income. Titles: Solutions Architect: Provided a suite of services dedicated to customizing and implementing innovative solutions. Propelled organizations forward through strategic and cutting-edge solutions. Software Development Manager: Hired and trained teams of developers to create software applications for over 15 years. Delivered quality with secure systems, enterprise hardware, extensive testing, and the latest technology. Software Developer: Expertise in Agentic AI, Progressive Web Apps, Monday, WordPress, mobile app development, full-stack development management business AI Bot. Proficient in API Integrations, AI Development, JavaScript, Node.js, Python, Linux, Postgres, Clickhouse, MySQL, AI integrations, CSS, Microsoft SQL Server, SQL, software development, HTML5, User Interface (UI), and AWS. Business Process Automation Specialist: Developed aggressive solutions to reduce operating expenses and enhance performance. Implemented innovative solutions tailored to the evolving business landscape. Expert in Automation Tools: Extensive experience integrating complex automations across various systems. Proficient in Python, N8N, Zapier, Microsoft Power Automate, Make, and Active Pieces. Server Skills: Proficient in Docker, Bash, Ubuntu, and Cpanel. Marketing Manager: Automated reporting, ad creation, posting, and split testing for rapid results. Marketing: E-commerce management. Development of marketing strategies and execution. Proficient in Google Ads, Facebook Ads, video creation, graphics creation, and social media growth management. Management: Team hiring and specialized plan execution. Workflow and individual KPI management. Motivating teams for project excitement. Training, work review, and simplifying complex concepts for team understanding. Sales: In-person sales and networking skills. Conference and trade show management. Video sales skills for product demonstrations. Industries Worked In: Mobile app development companies Web development firms Political campaigns Federal Government Agencies Local City Government Oil & Gas Well Services Insurance Property and Casualty Recruiting Firms Home Services Agriculture Manufacturing Precious Metals trading Land Development Metal and Plastics Manufacturing and Assembly Healthcare Rental Properties Legal Firms Finance Firms International Procurement and Logistics Achievements: Often eliminated 40 to 100 hours of labor needed per week in various companies. Created several marketing plans that brought products from $0 to $50k - $700k per month in revenue. Enhanced software efficiency to reduce cost by 70%. Improved physical product design to increase strength and reduce cost by 50%. Increased client retention by at least 20% and reduced churn. Why Choose Me: I trim your payroll with AI and automation. I aggressively create solutions to reduce your operating expenses and increase performance with cutting-edge technology and strategic thinking. Mission: I partner with you to transform your teams to run with peak performance by equipping them with easy-to-use tools and reducing the volume of work with automation. I'm not just a solutions provider; I'm your strategic partner, dedicated to increasing your bottom line. Core Values: Produce more with less staff. Faster response times from employees. More tools to creatively innovate workflow. Quickly identify errors with accurate tracking. Employee Profit Calculator: This calculator takes a closer look at how much revenue each team member contributes. This uncomplicated calculation holds the key to various intriguing considerations. How I Do It: I provide a comprehensive suite of services aimed at helping your business thrive in an ever-evolving landscape. My expertise as a Solutions Architect is dedicated to customizing and implementing innovative solutions that propel your organization forward. Explore My Diverse Range of Services: Create a Plan - Business Analysis and Assessment Develop a Strategy - Technology Roadmapping Flawlessly Execute - Apps, IoT, and AI Integration Analyze Your Business in Under Two Minutes - Business Analysis Survey Real Solutions for Real Problems: Here are just a few examples of the impact my services have had on my customers.

SaaS Developer with 5 years of experience. Working on AI-based projects involving computer vision and GenAI pipelines using Python. Hands-on experience with Laravel (10/11/12), Node.js/Express, and Go for backend development, and VueJS, ReactJS, NuxtJS, and NextJS for frontend work. In past created future proof api's those are currently handling 100K+ concurrent users.