AWS Lambda Developers For Hire
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Hire briannnelson
briannnelson briannnelson
$60 USD / hour
Full-Stack Web & Mobile App Developer | 10+ yearsUnited StatesWith over 10 years of hands-on experience developing and scaling web applications across the insurance, telecom, and restaurant tech industries, I help businesses turn complex requirements into clean, maintainable, and high-performance code. I’m passionate about modernizing legacy systems — from migrating SQL stored...With over 10 years of hands-on experience developing and scaling web applications across the insurance, telecom, and restaurant tech industries, I help businesses turn complex requirements into clean, maintainable, and high-performance code. I’m passionate about modernizing legacy systems — from migrating SQL stored procedures to Node.js + MongoDB, to rebuilding jQuery/PHP frontends into fast, SEO-friendly Next.js applications. I stay current with industry best practices and love solving problems that truly impact users and business metrics. Whether you need a landing page for A/B testing, a complete frontend overhaul, REST API development, or CI/CD pipeline setup — I deliver production-ready code with attention to performance, testing, and scalability. 𝐂𝐨𝐫𝐞 𝐂𝐨𝐦𝐩𝐞𝐭𝐞𝐧𝐜𝐢𝐞𝐬 - Frontend: React, TypeScript, Next.js (SSR/SSG), Vite.js, JavaScript, jQuery, HTML5, CSS3, SASS, Tailwind CSS, Bootstrap - Mobile: React Native, Ionic Framework, Swift, Flutter - Backend: Node.js, Express.js, REST APIs, MongoDB, PostgreSQL, SQL, PHP - Desktop: Electron.js - Testing & Optimization: Unit Testing, E2E Testing, A/B Testing - DevOps & Cloud: CI/CD pipelines, AWS, Azure, Google Cloud Platform, Vercel, Bitbucket - State Management: Redux, React Hooks, React Context - CMS & SEO: WordPress, Open Graph - Tools: Git, GitHub, npm, Postman, Sentry, Auth0, Axios 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? ✅ Fast learner — I adapt quickly to your stack and codebase. ✅ 13+ years of real-world, full-cycle development experience. ✅ Strong communicator — worked with onshore and offshore teams. ✅ Focus on best practices, testing, and performance. ✅ Available for short-term fixes, long-term collaborations, or legacy migrations. 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐢𝐥𝐢𝐭𝐲 Open to both fixed-price and hourly contracts. Flexible with time zones (experience with US-based and international teams). less -
Hire AdeelAslam4
We're BrainX, a Pakistan-based software team that builds and maintains mobile apps people actually use. Baritastic, a HIPAA-compliant bariatric care app we've maintained for over 5 years, has 500,000+ installs and a 4.6 rating on Google Play, with native iOS and Android builds, wearable integrations across Fitbit,...We're BrainX, a Pakistan-based software team that builds and maintains mobile apps people actually use. Baritastic, a HIPAA-compliant bariatric care app we've maintained for over 5 years, has 500,000+ installs and a 4.6 rating on Google Play, with native iOS and Android builds, wearable integrations across Fitbit, Garmin, and Apple HealthKit, and a provider dashboard for care teams. That's not the only one live today: • Ponder, an AI voice-therapy app on both app stores • CaloTracker, an AI-powered calorie and nutrition tracker built in Flutter, with photo and barcode scanning and Apple Health sync • LUMP, a cross-platform Flutter social meetup app with a Node.js and MongoDB backend, live on both stores • RollStrong, a Flutter fitness app with a working subscription model, live on both stores • SwapDotz, an app using native NFC integration to verify and trade physical collectibles Clients back this with real budgets: one mobile app project came in at over $17,000, another at over $4,000, both five-star reviews specifically praising our delivery and communication. AI development is core to what we build into mobile • MathAMentor, an AI maths tutor students talk to through a live avatar • Call Sling, an AI agent that answers and routes inbound calls • DocuMed, AI medical transcription with mobile, web, and offline support • RAG assistants, document and workflow automation, and support bots running across websites and WhatsApp for live clients Also part of what we do: Web Development • Next.js, React, Node.js, Python, and Laravel Shopify & Custom eCommerce • Custom storefronts and eCommerce builds UX/UI Design • Full product design from concept through interface Tell us what you're building and we'll walk you through how we'd approach your mobile app. less -
Hire deepsniti
Mandlaus Group Pvt. Ltd. is a Top-Rated and Preferred Freelancer.com agency with 22+ years of experience on the platform. We build high-quality, production-ready software that is reliable, scalable, and secure. We deliver great work that creates real value for our clients. 🏆 1500+ projects completed ⭐️ All 5-star...Mandlaus Group Pvt. Ltd. is a Top-Rated and Preferred Freelancer.com agency with 22+ years of experience on the platform. We build high-quality, production-ready software that is reliable, scalable, and secure. We deliver great work that creates real value for our clients. 🏆 1500+ projects completed ⭐️ All 5-star reviews ⏰ 100% on-time 💰 100% on-budget ✅ 100% completion rate 🤝 30% re-hire rate 🎂 On Freelancer since 2004. We are proud Microsoft Partner and IBM Partner, delivering enterprise-grade solutions that meet global standards in performance, security, and compliance. We can bring your vision to reality by transforming your ideas into powerful, scalable, and high-performance digital solutions. Our focus is to deliver exceptional quality with clear communication, disciplined execution, and strict adherence to timelines and budgets, so you gain not just software, but a reliable technology foundation you can confidently grow on. ➡️ Our services: ✅ Enterprise Software Development ✅ Web Application Development ✅ Mobile App Development (iOS, Android, Cross-Platform) ✅ Legacy System Modernization ✅ API Development & Integration ✅ System & Third-Party Integration ✅ Cloud Application Development & Migration ✅ AI Integration ✅ Data Analytics & Business Intelligence ✅ Application Maintenance & Support ✅ QA, Testing & Performance Engineering ✅ DevOps & CI/CD ✅ IT Consulting & Solution Architecture ➡️ Deliverables & Outputs: ✅ Enterprise SaaS Platforms ✅ Custom Web Portals & Dashboards ✅ Admin Panels & Backend Systems ✅ Mobile Applications (Native & Hybrid) ✅ RESTful & GraphQL APIs ✅ API Documentation & Technical Documentation ✅ Cloud-Native Applications ✅ AI-Powered Automations ✅ Data Pipelines & BI Dashboards ✅ System Architecture Documentation ✅ CI/CD Pipelines & Automated Deployment Setups ✅ Refactored & Modernized Legacy Systems ✅ Ongoing Optimization & Support ➡️ Technical Expertise: ✅ Programming Languages: PHP, JavaScript, TypeScript, Python, Java, C#, Golang, Ruby ✅ Frontend Development: HTML, CSS, JavaScript, React.js, Next.js, Vue.js, Angular, Svelte, React Router V7, Tailwind CSS, Bootstrap. ✅ Backend Development: Laravel, Symfony, Core PHP, Express, Nest, Django, Flask, Spring, Spring Boot, ASP.NET Core, Echo, Gin, Fiber, Ruby on Rails, Firebase ✅ Mobile App Development: React Native ✅ Cloud Platforms: AWS, GCP, Azure, IBM Cloud, Vercel, Digital Ocean, Heroku, Netlify ✅ Databases: PostgreSQL, MySQL, MariaDB, SQL Server, MongoDB, Apache Cassandra, Firebase Firestore ✅ DevOps: Docker, Github Actions ✅ Version Control: Git, GitHub, GitLab ✅ Payment Gateways: Stripe, Paypal, Razorpay ➡️ Communication & Collaboration: ✅ We communicate fluently in English and Hindi, ensuring clarity in technical documentation, business discussions, and stakeholder reporting. If you need a reliable, process-driven technology partner with a flawless execution record, Mandlaus Group Pvt. Ltd. is ready to build, optimize and scale your next solution. less -
Hire mazharsahil12
I am a Senior Full-Stack Developer with extensive experience delivering scalable, secure, and high-performance web and mobile applications. I help startups and established teams transform ideas into production systems that support real operations and long-term growth. I work across the entire lifecycle - discovery,...I am a Senior Full-Stack Developer with extensive experience delivering scalable, secure, and high-performance web and mobile applications. I help startups and established teams transform ideas into production systems that support real operations and long-term growth. I work across the entire lifecycle - discovery, architecture, development, deployment, and continuous improvement. My focus is on building resilient solutions, controlling technical debt, and enabling teams to ship features with confidence. ❇️ Core Expertise ❇️ ➡️ Backend Engineering: JavaScript, Node.js, Express.js, TypeScript, C#, .NET Core, ASP.NET MVC, ASP.NET Web API, PHP, Lavavel, Entity Framework, signalR, RabbitMQ, MassTransit, Kubernetes ➡️ Frontend & Web: React, Next.js, Redux, Vue.js, Angular JS, Material UI, Semantic UI, Tailwind CSS, responsive UI development, PSD, HTML, CSS, Bootstrap, Wordpress, Wix ➡️ Mobile: React Native & Flutter for iOS and Android, push notifications, offline-ready patterns ➡️ Databases & Storage: SQL Server (complex stored procedures), MySQL, MongoDB, Firebase, Firestore, PostgreSQL,Supabase ➡️ API Design: REST, GraphQL, Swagger/OpenAPI, versioning ➡️ Security & Identity: OWASP best practices, JWT, OAuth, Auth 2.0, Identity Server, role-based access control ➡️ Cloud & DevOps: AWS, Azure, Docker, CI/CD pipelines, environment configuration, logging & monitoring ➡️ AI & ML Tools: GPT-3.5/4/5.5, OpenAI, LangChain, Whisper, ElevenLabs, Huggingface, Stable Diffusion, TensorFlow, Pandas, NumPy, and chatbot development (text + voice). ➡️ Automation & Integration: Web scraping, workflow automation, API integration, Airtable, Notion, Google Sheets, FastAPI, and trading bots (Pine Script), Stripe, PayPal, third-party APIs, webhooks. ➡️ Servers: Dedicated, Shared, VPS, Private Servers ➡️ Design: UI / UX Design, Photoshop, Adobe XD, Figma, Sketch, InVision Legacy Systems & Modernization ➡️ VB.NET, ASP.NET Web Forms, Windows Forms, Desktop applications ➡️ Feature enhancements and module extensions ➡️ Bug fixing and performance improvements ➡️ Refactoring toward maintainable architectures ➡️ Gradual migration to .NET Core / modern stacks ➡️ Stabilizing long-running production systems Architecture & Engineering Practices ➡️ Clean / Layered architecture ➡️ SOLID principles ➡️ Domain-driven design concepts ➡️ Microservices & modular monoliths ➡️ Dependency injection ➡️ Repository & Unit of Work ➡️ Event-driven approaches ❇️ WHAT YOU CAN EXPECT ❇️ ➔ Daily Communication With Quick Replies To Messages ➔ Daily Work Update Report On Worked Things Of That Day ➔ Bug-Free Work With Proper Testing As I Know That Client Is Not Tester ➔ Guaranteed Work ➔ Ongoing Support As Needed Bases Sounds interesting? Let's have a quick Freelancer call/chat to discuss your project. less -
Hire ambar
⭐ 450+ Five-Star Reviews | $800,000+ Delivered on Freelancer With 20+ years of experience, I build modern web applications, AI-powered solutions, SaaS platforms, enterprise systems, APIs, and cloud-native applications. Whether you need a new product, website redesign, AI integration, automation, bug fixing, or...⭐ 450+ Five-Star Reviews | $800,000+ Delivered on Freelancer With 20+ years of experience, I build modern web applications, AI-powered solutions, SaaS platforms, enterprise systems, APIs, and cloud-native applications. Whether you need a new product, website redesign, AI integration, automation, bug fixing, or modernization of an existing system, I deliver production-ready solutions with clean architecture, fast communication, and reliable execution. My expertise includes: ➤ Frontend: React.js, Next.js, Angular, TypeScript, JavaScript, HTML5, CSS3, Bootstrap ➤ Backend: Node.js, Python (Django, FastAPI), ASP.NET Core/MVC, PHP (Laravel) ➤ Databases: PostgreSQL, Supabase, MySQL, SQL Server, MongoDB, Firebase ➤ Cloud & DevOps: AWS, Azure, Docker, CI/CD, Nginx, Apache, Cloudflare ➤ AI & Automation: OpenAI APIs, AI Integrations, Webhooks, APIs, Selenium, Playwright, Workflow Automation ➤ Mobile: Android (Java/Kotlin), iOS (Swift/Objective-C) I also specialize in scalable SaaS architecture, secure deployments, server optimization, multi-domain infrastructure, enterprise integrations, and high-performance backend systems. Strong experience integrating Stripe, Twilio, Zoho, HubSpot, Monday.com, QuickBooks, Google Workspace, CRMs, payment gateways, and third-party APIs. My clients value clear communication, accountability, and practical problem-solving. I focus on writing clean, maintainable code, delivering on time, and ensuring projects are easy to extend long after launch. In addition to development, I also help businesses perform architecture reviews, technical due diligence, code audits, and legacy system modernization when required. less -
Hire winmaclin
⭐ Top 2% on Freelancer.com | Narola Infotech - Digitalising Businesses Since 2005 ✎ About Us We are Narola Infotech, a globally recognized IT solutions company with 20+ years of experience delivering high-performance web, mobile, and enterprise software solutions to 1500+ happy clients across 50+ countries. Trusted...⭐ Top 2% on Freelancer.com | Narola Infotech - Digitalising Businesses Since 2005 ✎ About Us We are Narola Infotech, a globally recognized IT solutions company with 20+ years of experience delivering high-performance web, mobile, and enterprise software solutions to 1500+ happy clients across 50+ countries. Trusted by Fortune companies like CGI, L&T, Infosys, Biocon, and TVSNext. We don't just build software, we build lasting partnerships. Our approach is simple: understand your vision, deliver beyond expectations, and stay with you every step of the way. ✎ Why Choose Us? ➬ 20+ Years of Industry Experience ➬ 350+ Talented IT Professionals ➬ 3000+ Successfully Delivered Projects ➬ 95% Client Retention Ratio ➬ 4.9 ⭐ Clutch Rating ➬ 100% Project Success Ratio ➬ Clutch Top 1000 Companies Global 2022 ➬ Best Outsourcing Company - SGCCI ✎ Our Services ➬ Custom Web & Mobile App Development ➬ Custom Enterprise Software Development ➬ AI/ML & Data Analytics Solutions ➬ QA & Software Testing (Automation, Security, Performance) ➬ DevOps, Cloud Migration & Managed Services ➬ Salesforce Consulting, Implementation & Support ➬ Staff Augmentation - Dedicated Teams or Individual Developers ➬ Support & Maintenance ✎ Tech Stack ➬ Frontend: ReactJS, AngularJS, VueJS, NextJS, NuxtJS ➬ Backend: Node.js, Java, PHP, Laravel, .NET, Python, Django, WordPress ➬ Mobile: Flutter, React Native, iOS (Swift), Android (Java/Kotlin) ➬ Cloud & DevOps: AWS, Azure, Docker, Kubernetes, Jenkins, CI/CD, Terraform ➬ Database: MySQL, MongoDB, PostgreSQL, Firebase, MS-SQL ➬ Other: Salesforce, MS Dynamics 365, Power Platform, Big Data, AI/ML, Automation ✎ Industries We Serve ● Fintech ● Healthcare ● Retail & Ecommerce ● Education ● Real Estate ● Media & Entertainment ●Transport & Logistics ✎ Our Strengths ➬ Agile Development Methodology ➬ Daily & Weekly Progress Reports ➬ Clear Communication & Collaboration ➬ 100% Plagiarism-Free & Secure Delivery ➬ Guaranteed Data Privacy & NDA Protection ➬ Flexible Engagement Models: ● Fixed Cost ● Time & Material (Hourly) ● Dedicated Team ● Hybrid Model (Fixed + Hourly) ✎ Our Promise "You will get the value of every penny you spend. We are committed to driving your business forward with reliable, quality solutions powered by technology and innovation." - Ashish Narola, CEO less -
Hire ArmiaWassefFayez
ArmiaWassefFayez ArmiaWassefFayez
$50 USD / hour
Top 1% Preferred & Verified ✅ by Freelancer.comEgyptI am a Senior Technical Architect & Lead Full-Stack Developer with over 15 years of experience specializing in ASP.NET Core MVC, ASP.NET Zero / Boilerplate, and CMS platforms including Umbraco. I have an extensive background in both web and Windows application development using C#, VB.NET, and legacy VB6, supported by...I am a Senior Technical Architect & Lead Full-Stack Developer with over 15 years of experience specializing in ASP.NET Core MVC, ASP.NET Zero / Boilerplate, and CMS platforms including Umbraco. I have an extensive background in both web and Windows application development using C#, VB.NET, and legacy VB6, supported by strong expertise in Entity Framework and modern architectural patterns. My technical skills span a wide range of technologies and tools, including: Back-End & Cloud: ASP.NET Core, MVC, Web API, WCF, WebForms, SQL Server, PostgreSQL, Oracle, MySQL, NoSQL (MongoDB, Firebase), Crystal Reports, RDLC, SSIS, SSRS, Azure, AWS, SmarterASP, VPS & Plesk Front-End: HTML, CSS, JavaScript, jQuery, AJAX, TypeScript, Angular (all versions), React, Redux, KnockoutJS Version Control & DevOps: GitHub, GitLab, Bitbucket, TFS, SVN Mobile Development: Xamarin.Forms, Xamarin.Native, Flutter, Android, iOS Cloud & DevOps Microsoft Azure & AWS services (App Services, Functions, Storage, EC2, S3) CI/CD automation with Azure DevOps, GitHub Actions, GitLab CI, Bitbucket Pipelines Containerized deployments using Docker and Kubernetes Infrastructure provisioning and security best practices Hosting and server administration: SmarterASP, VPS & Plesk I apply clean software engineering principles with experience in Repository Pattern, Onion Architecture, Domain-Driven Design (DDD), and Dependency Injection, while consistently following SOLID principles. I value clear communication, transparency, and ongoing collaboration to ensure project alignment from start to finish. My commitment is to deliver high-quality, scalable solutions on time and within budget—client satisfaction is always my top priority. Thank you for reviewing my profile — I look forward to working together on your next project. less -
Hire jonathangleon
jonathangleon jonathangleon
$30 USD / hour
Full-Stack Engineer | AI & Automation | BlockchainMexico⭐⭐ “My foremost priority is ensuring client satisfaction.” ⭐⭐ As a seasoned web developer and software engineer, I possess expertise in both front-end and back-end technologies. I am dedicated to crafting elegant, user-centric solutions and excel at transforming complex concepts into highly functional and efficient...⭐⭐ “My foremost priority is ensuring client satisfaction.” ⭐⭐ As a seasoned web developer and software engineer, I possess expertise in both front-end and back-end technologies. I am dedicated to crafting elegant, user-centric solutions and excel at transforming complex concepts into highly functional and efficient web applications. Skills and Expertise: ✅ Web Development: Proficient in Python (Django, FastAPI), PHP (Laravel, WordPress), Node.js (Express.js), and Go (GoLang) ✅ Frontend Technologies: Experienced with React, Next.js, Nuxt.js, and Vue ✅ API Development: Skilled in building and integrating APIs ✅ Cloud Services: Expertise in AWS and Firebase ✅ Payment Integration: Proficient with Stripe, PayPal, Authorize.net, Sofort, and Alipay ✅ Databases: Knowledgeable in SQL, PostgreSQL, and MongoDB ✅ Responsive Design: Competent in HTML5, CSS3, Bootstrap, and Tailwind ✅ UI/UX Design: Specializing in creating mockups and user-centered designs ✅ Microsoft Power Platform: Proficient in Power Apps and Power Automate ✅ Mapping Solutions: Skilled in Google Maps and Mapbox integration ✅ Communication Tools: Familiar with Twilio SMS and SendGrid ✅ Automation and Scripting: Experienced with Google Apps Script Additional Skills: ✅ CI/CD Pipelines: Proficient in GitLab, Bitbucket Pipelines, and Jenkins ✅ Linux Administration: Experienced in VPS and shared server setup, configuration, and cron jobs ✅ Version Control: Familiar with Bitbucket, GitHub, and Git Flow ✅ Web Server Management: Skilled in managing Apache, NGINX, and IIS ✅ Containerization: Proficient in Docker Project Management Qualities: ✅ Commitment to Quality: I guarantee full satisfaction with my work ✅ Timely Delivery: I ensure accurate and on-time project completion ✅ Ongoing Support: I offer long-term support even after project completion I would be grateful for the opportunity to discuss your project in greater detail and demonstrate how my skills can align with your specific requirements. I would be delighted to explore how we can collaborate to achieve your goals. Thank you! less -
Hire Herculesz
Principal / Head AI & Full-Stack Engineer with 25+ years of experience architecting, building, and scaling complex software systems across web, mobile, cloud, CMS/eCommerce, and AI-driven platforms. I specialize in delivering production-ready applications from concept to launch, including SaaS platforms, marketplaces,...Principal / Head AI & Full-Stack Engineer with 25+ years of experience architecting, building, and scaling complex software systems across web, mobile, cloud, CMS/eCommerce, and AI-driven platforms. I specialize in delivering production-ready applications from concept to launch, including SaaS platforms, marketplaces, admin dashboards, mobile applications, automation systems, APIs, CMS websites, eCommerce stores, and intelligent AI-powered workflows. I bring a strong combination of full-stack engineering, cloud architecture, DevOps, CMS/eCommerce development, and AI/LLM expertise, with a proven ability to transform complex business requirements into scalable, secure, and user-focused digital products. My experience covers frontend architecture, backend engineering, database design, third-party integrations, real-time systems, performance optimization, CI/CD, observability, and production deployment. Technical Expertise: Frontend: React, Next.js, Vue.js, TypeScript, JavaScript, Tailwind CSS, Material UI, responsive UI/UX implementation Backend: Node.js, NestJS, Express.js, Laravel, PHP, Python, REST APIs, GraphQL, microservices, server-side architecture Mobile: Flutter, React Native, Expo, iOS, Android, cross-platform mobile app development CMS & eCommerce: WordPress, WooCommerce, Shopify, Wix, Webflow, custom theme development, plugin/app integrations, payment setup, product catalogs, checkout flows, landing pages, blog systems, and SEO-friendly website architecture Databases: PostgreSQL, MySQL, MongoDB, Firebase Firestore, Supabase, Redis, database design, optimization, migrations, and data modeling Cloud & DevOps: AWS, Google Cloud, Azure, DigitalOcean, Docker, Kubernetes, Nginx, CI/CD, GitHub Actions, server deployment, monitoring, logging, and observability AI & LLMs: OpenAI API, LangChain, RAG pipelines, AI copilots, conversational agents, semantic search, embeddings, prompt engineering, fine-tuning, Pinecone, pgvector, vector databases, and agentic workflows Payments & Integrations: Stripe, PayPal, Twilio, SendGrid, Firebase, Google APIs, third-party APIs, webhooks, CRM integrations, automation platforms, and API-based business workflows I have a strong track record of designing and delivering scalable SaaS platforms, marketplace systems, mobile apps, admin dashboards, CMS websites, eCommerce stores, automation tools, and AI-driven products that support real business operations. My work combines clean frontend experiences, secure backend systems, optimized databases, cloud-ready infrastructure, flexible CMS solutions, and practical AI innovation. As a hands-on technical leader, I am experienced in mentoring engineers, leading cross-functional teams, making architecture decisions, and aligning technical execution with business goals. I am passionate about building high-quality software that is scalable, maintainable, and ready for real-world users. less -
Hire SystemX2
Leading a team of experienced software engineers, AI specialists, and technology experts with a proven track record of building high-quality digital products. With expertise across AI, LLMs, SaaS, web, mobile, blockchain, cloud, backend engineering, and modern software architecture, I bring together the right...Leading a team of experienced software engineers, AI specialists, and technology experts with a proven track record of building high-quality digital products. With expertise across AI, LLMs, SaaS, web, mobile, blockchain, cloud, backend engineering, and modern software architecture, I bring together the right specialists to turn ideas and business requirements into reliable, scalable, production-ready solutions. 💡 What We Build From MVPs and prototypes to complex enterprise platforms, our team can help you build: AI-powered applications LLM and RAG platforms AI agents and automation solutions SaaS products and platforms Web and mobile applications E-commerce platforms Enterprise software APIs and backend systems Blockchain and Web3 applications Business automation solutions MVPs and prototypes Legacy application modernization and optimization 🤝 Let's Build Something Great Have a new idea, an existing product, or a challenging technical problem? Let's discuss your goals, requirements, challenges, and find the right team and technical approach to bring your vision to life. less
