Nest.js Developers For Hire
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Hire appdesigner487
appdesigner487 appdesigner487
$15 USD / hour
Full-Stack Developer | React Native | AI | SaasPakistanAI Full Stack Developer | React.js, Node.js, Web & Mobile Apps 8+ years of experience building scalable SaaS platforms, AI-powered applications, and high-performance web & mobile products. Delivered 42+ successful projects helping startups and businesses launch faster and smarter. My Development Process: 1️⃣...AI Full Stack Developer | React.js, Node.js, Web & Mobile Apps 8+ years of experience building scalable SaaS platforms, AI-powered applications, and high-performance web & mobile products. Delivered 42+ successful projects helping startups and businesses launch faster and smarter. My Development Process: 1️⃣ Understand your business goals 2️⃣ Design a scalable architecture 3️⃣ Write clean, maintainable code 4️⃣ Deliver on time with transparency 5️⃣ Post-launch support & guidance What You Get Working With Me: ✔ 8+ years of proven development experience ✔ AI & ML-powered web and mobile solutions ✔ Clean, documented & scalable code ✔ Daily progress updates: zero ghosting ✔ On-time delivery with milestone tracking ✔ Post-launch support & maintenance ✔ A strategic development partner thinking long-term Core Tech Stack: Mobile: React Native, Expo, iOS app development Frontend: React.js, Next.js, Tailwind CSS Backend: Node.js, Express, FastAPI Database: MongoDB, PostgreSQL, Firebase AI/ML: OpenAI API, LangChain, TensorFlow Automation: n8n, Make, Zapier Other: WordPress, Shopify, REST APIs If you are looking for a reliable, experienced developer who understands both technology and business, let’s work together. Click "Invite" or "Message" to discuss your project. I respond within 10 minutes. Skills & Keywords: Full Stack Developer, Web Developer, React.js Developer, Vue.js Developer, Angular Developer, Node.js Developer, Express.js, PHP Developer, Laravel Developer, Django Developer, MySQL, PostgreSQL, MongoDB, API Integration, SaaS Platforms, Responsive Web Design, UI/UX Design, Figma, React Native Developer, Flutter Developer, Android App Development, iOS App Development, Kotlin, Java, Mobile App Developer, AI Developer, Machine Learning, NLP, OpenAI GPT, Chatbot Development, AI Automation, Azure Cognitive Services, WordPress Development, WooCommerce, Shopify Developer, E-commerce Websites, Stripe Integration, PayPal Integration, Square Integration, Admin Panels, Dashboards, Reporting Tools, HIPAA Compliance, GDPR Compliance, Blockchain, Web3, IoT Smart Home Systems, EdTech Solutions, POS Systems, Real Estate Listing Websites, Car Listing Websites, Appointment Scheduling Software less -
Hire stelianrosca618
Greetings! I love to satisfy clients providing high quality work and good communication. I hold a Bachelor's degree in computer science. I have built many websites using several technical stacks, working as a web developer over the last 10+ years. Additionally, I have a career in healthcare company, building...Greetings! I love to satisfy clients providing high quality work and good communication. I hold a Bachelor's degree in computer science. I have built many websites using several technical stacks, working as a web developer over the last 10+ years. Additionally, I have a career in healthcare company, building LIMS(Laboratory Information Management System) and experiencing Healthcare Integration Engine like Mirth Connect. Following technologies are what I mastered as a full-stack expert. Frontend React, Vue, Angular, HTML, CSS, SCSS, JavaScript, JQuery Backend Node/Express, PHP/Laravel, PHP/CodeIgniter, Python/Flask, Python/Django Database MySQL, MongoDB, SQLite, PostgreSQL I am familiar with AWS deployment and Linux System Administration too. Thanks for checking my profile in details. less -
Hire yuriihal
I build AI-driven backend systems that think, learn, and scale. Most companies use AI in fragments—a chatbot here, an automation there. I help startups and enterprises build complete AI ecosystems by integrating Large Language Models (LLMs) into robust, production-grade backend architectures. Whether you are building...I build AI-driven backend systems that think, learn, and scale. Most companies use AI in fragments—a chatbot here, an automation there. I help startups and enterprises build complete AI ecosystems by integrating Large Language Models (LLMs) into robust, production-grade backend architectures. Whether you are building an AI SaaS MVP from scratch or adding RAG-based intelligence to an existing platform, I deliver clean, maintainable, and secure code. What I bring to your project: 1. AI Integration: Expert in OpenAI (o1/GPT-4), Claude 3.5, and Gemini 2.0. I specialize in RAG (Retrieval-Augmented Generation) and AI Agent workflows using LangChain and CrewAI. 2. Backend Excellence: Scalable microservices built with FastAPI, Python, or NestJS. I focus on high-concurrency, security, and performance. 3. Vector Infrastructure: Implementation of Pinecone, Weaviate, or PGVector for efficient data retrieval. 4. SaaS Architecture: Multi-tenant database design, Stripe subscription logic, and RBAC (Role-Based Access Control). Why work with me? - Speed to MVP: I focus on getting your AI SaaS to market in 3–6 weeks without technical debt. - Product Thinking: I don't just follow tickets; I ask "Why?" to ensure the feature actually drives user value. - Security First: I ensure your AI integrations are prompt-injection resistant and GDPR/SOC2 compliant. TECHNICAL STACK: - AI & LLM: OpenAI API, LangChain, RAG, Prompt Engineering, Vector DBs (Pinecone) - Backend: Python (FastAPI, Django), Node.js (NestJS, Express), Go - Databases: PostgreSQL, MongoDB, Redis, Supabase - Cloud & DevOps: AWS (Lambda, ECS), Docker, GitHub Actions, Vercel - Integrations: Stripe, Auth0, Twilio, HubSpot, Slack API less -
Hire dmytrobenko
Highly motivated and detail-oriented professional with a strong background in problem-solving. Good team player as well as good at working alone; very sociable. Hardworking and responsible for projects and tasks. Eager to learn a lot of new information and skills every single dayHighly motivated and detail-oriented professional with a strong background in problem-solving. Good team player as well as good at working alone; very sociable. Hardworking and responsible for projects and tasks. Eager to learn a lot of new information and skills every single day less -
Hire VisualZen
We are Visual Studio, a collective of strategists, designers, and developers who turn complex challenges into elegant digital solutions. What we do is simple: we build brands that captivate, websites that convert, and experiences that keep users coming back. Whether you need a high-performing Shopify store, a...We are Visual Studio, a collective of strategists, designers, and developers who turn complex challenges into elegant digital solutions. What we do is simple: we build brands that captivate, websites that convert, and experiences that keep users coming back. Whether you need a high-performing Shopify store, a cohesive brand identity, or an intuitive SaaS interface, we bring the right mix of creativity and technical precision to every project. Our approach? Start with your business goals, not design trends. We dig deep into what makes your audience tick, then craft solutions that look exceptional and perform even better. No cookie-cutter templates. No guesswork. Just strategic design backed by solid development. We have partnered with startups ready to launch and brands ready to scale, delivering work that is on time, on budget, and always on point. From wireframes to final launch, we communicate clearly, move fast, and treat your vision like our own. That is the Visual Studio way. less -
Hire rehmanshawon2017
rehmanshawon2017 rehmanshawon2017
$25 USD / hour
MERN C# Unity Python ML Flutter Java DevOpsBangladeshA seasoned Tech Lead and Senior Full Stack Engineer with over 14 years of hands-on experience in software development, project architecture, and team leadership. Adept at utilizing modern JavaScript frameworks (MERN) and cloud-based technologies to deliver scalable, high-performance solutions. Proven expertise in both...A seasoned Tech Lead and Senior Full Stack Engineer with over 14 years of hands-on experience in software development, project architecture, and team leadership. Adept at utilizing modern JavaScript frameworks (MERN) and cloud-based technologies to deliver scalable, high-performance solutions. Proven expertise in both front-end and back-end development across a diverse range of projects. Seeking to apply a deep technical background and leadership acumen in a senior role that fosters innovation, mentorship, and strategic growth. Dynamic and results-oriented Senior Full Stack Engineer with extensive experience in MERN stack development, GraphQL, Flutter, and DevOps practices. Adept at designing and delivering cutting-edge solutions in monolithic, microservices, SaaS, and cloud architectures using AWS and Azure platforms. Proficient in leading cross-functional teams, driving project management, and aligning technical execution with business goals. Skilled at architecting complex systems to ensure reliability, security, and scalability, while maintaining high standards of code quality and best practices. Focused on continuous improvement and mentoring teams to achieve high performance and innovation. TECHNICAL SKILLS: Full-Stack Development: Expert in JavaScript frameworks (MERN: MongoDB, Express.js, React, Node.js), HTML5, CSS3, JavaScript (ES6+), Redux, RESTful and GraphQL APIs. Backend Development: Expertise in building microservices and monolithic architectures, Node.js, Express.js, Apollo Server, database management (MongoDB, MySQL, PostgreSQL), serverless architectures, and containerization (Docker, Kubernetes). Mobile App Development: Cross-platform mobile application development using Flutter/Dart. Knowledgeable in app lifecycle management, state management (BLoC, Provider), and deployment (Android/iOS). DevOps & Cloud Services: Hands-on experience with AWS, Azure, Heroku, CI/CD pipelines, GitHub Actions, Jenkins, and containerization with Docker. Knowledgeable in infrastructure as code (Terraform) and cloud-native patterns. Game Development: Proficient in Unity/C# game development, game mechanics design, and 2D/3D environments. Delivered client-based gaming solutions, handling development lifecycle from concept to deployment. Leadership & Mentorship: Extensive experience in leading agile teams, conducting code reviews, setting coding standards, and fostering a culture of learning and collaboration. Additional Skills: Python, C++, Git, WebSockets, JWT authentication, Firebase, WebPack, micro-frontends, and TypeScript. less -
Hire GabrielV4
www.linkedin.com/in/gabriel-medina-vindigni ----- Spanish Version ---- Arquitecto de Software Senior | Decisiones Técnicas con Impacto en Negocio | Agnóstico al Stack | Remoto Arquitecto de Software Senior con más de 9 años diseñando y construyendo aplicaciones listas para producción. Mi valor no está en dominar una...www.linkedin.com/in/gabriel-medina-vindigni ----- Spanish Version ---- Arquitecto de Software Senior | Decisiones Técnicas con Impacto en Negocio | Agnóstico al Stack | Remoto Arquitecto de Software Senior con más de 9 años diseñando y construyendo aplicaciones listas para producción. Mi valor no está en dominar una tecnología específica, sino en tomar decisiones técnicas que impactan directamente en resultados de negocio. Mi enfoque de trabajo: → Agnosticismo Tecnológico: Selecciono herramientas basándome en restricciones de proyecto, capacidades de equipo y mantenimiento a largo plazo. → IA como Acelerador: Uso herramientas de IA estratégicamente para tareas repetitivas y exploración rápida de dominios nuevos. Siempre con revisión humana, testing y supervisión arquitectónica. → Mentalidad Business-First: Cada decisión técnica la evalúo a través del lente de impacto en negocio, time-to-market, costo operacional y velocidad de equipo. → Entrega Continua: Favorezco software funcional sobre soluciones perfectas, con énfasis en ciclos de feedback y resultados medibles. Experiencia internacional: He trabajado remotamente con clientes y empresas en España, EE. UU., México, Israel, Argentina, Costa Rica, Colombia y Perú. Abierto a proyectos desafiantes donde las decisiones arquitectónicas impacten directamente en resultados de negocio. Si necesitas desarrollar un nuevo proyecto o dar soporte a tu producto actual, estaré encantado de ayudarte. ¡Hablemos de tu proyecto! ----- English Version ---- Senior Software Architect | Technical Decisions with Business Impact | Stack Agnostic | Remote Senior Software Architect with 9+ years designing and building production-ready applications. My value isn't in mastering a specific technology—it's in making technical decisions that directly impact business outcomes. My working approach: → Technology Agnosticism: I select tools based on project constraints, team capabilities, and long-term maintenance. → AI as Accelerator: I use AI tools strategically for repetitive tasks and rapid exploration of new domains. Always with human review, testing, and architectural oversight. → Business-First Mindset: Every technical decision is evaluated through the lens of business impact, time-to-market, operational cost, and team velocity. → Continuous Delivery: I favor working software over perfect solutions, with emphasis on feedback loops and measurable outcomes. International experience: Extensive remote collaboration with clients and companies across Spain, USA, Mexico, Israel, Argentina, Costa Rica, Colombia, and Peru. Open to challenging projects where architectural decisions directly impact business outcomes. If you need help building a new project or improving your current product, I’ll be happy to help. Let’s build your project together! less -
Hire dmytroy7
As a seasoned Full-Stack Developer, I build dependable, high-performance products from start to finish spanning polished user experiences to resilient backend architectures. I excel at integrating AI and intelligent automation into systems, transforming complex workflows into streamlined, data-driven operations that...As a seasoned Full-Stack Developer, I build dependable, high-performance products from start to finish spanning polished user experiences to resilient backend architectures. I excel at integrating AI and intelligent automation into systems, transforming complex workflows into streamlined, data-driven operations that reduce costs and increase efficiency. I prioritize real-world, deployable solutions that are easy to manage, built securely and engineered to grow with your business. My Core Tech Stacks: Frontend: HTML5, CSS3, Tailwind CSS, JavaScript(ES6+), TypeScript, React.js, Next.js, Vue.js, Angular.js Backend: Node.js, Express.js, Nest.js, Laravel, Django, Spring Boot, ASP.NET Mobile: React Native, Android Native(Java), Flutter APIs & Architecture: REST APIs, GraphQL, WebSockets Third-Party APIs & Integrations: OpenAI API Marketing: SEO Auth & Security: JWT, OAuth 2.0, RBAC, API Authentication Database: MySQL, PostgreSQL, MongoDB, Firebase DevOps & Cloud: AWS(Lambda, ECS, S3, RDS), Nginx, Vercel, Docker, GCP Backend / AI / LLM Framework: LangChain, Whisper Testing & Performance: Jest, Cypress, Postman, Playwright, Load Testing, Sentry, Datadog, Espresso What I can do for you: - Craft high-performing web applications and sleek dashboards that excel in production. - Develop smooth, cross-platform mobile apps for both Android and iOS. - Design and implement robust backend APIs, seamless system integrations and scalable services built for growth. - Infuse your projects with intelligent, AI-powered features and smart automation. less -
Hire danielboggs
danielboggs danielboggs
$60 USD / hour
Exceed Your Expectation! Let's Do It Together!!United StatesWe deliver custom software solutions for startups, growing businesses, and modern enterprises that need reliable, scalable, and results-driven technology. With 10+ years of experience, our team builds and improves digital products across AI, web, mobile, e-commerce, blockchain, automation, and data systems. We...We deliver custom software solutions for startups, growing businesses, and modern enterprises that need reliable, scalable, and results-driven technology. With 10+ years of experience, our team builds and improves digital products across AI, web, mobile, e-commerce, blockchain, automation, and data systems. We support projects from planning and architecture to development, testing, deployment, and ongoing optimization. Our core expertise includes: • AI automation and business workflow systems • Custom web and mobile application development • E-commerce platforms and tailored store functionality • API development, backend integration, and system architecture • Blockchain applications and smart contract solutions • Data engineering, pipelines, and process automation • UI/UX-focused product implementation • Performance optimization, monitoring, and system improvement • QA, security, and CI/CD workflows We believe strong products come from clear communication, practical engineering, and consistent execution. Our goal is to deliver software that is not only functional, but dependable, maintainable, and ready for real business growth. less -
Hire C0RETECHIES
At Core Techies, we've delivered 35+ AI-powered systems since 2023 — from voice agents handling 5000+ daily calls to n8n automation workflows processing 10,000+ transactions monthly. We build AI Agents, Voice Bots, Chat Bots, Automation Systems, and AI SaaS MVPs with a 99% on-time, 97% on-budget track record across...At Core Techies, we've delivered 35+ AI-powered systems since 2023 — from voice agents handling 5000+ daily calls to n8n automation workflows processing 10,000+ transactions monthly. We build AI Agents, Voice Bots, Chat Bots, Automation Systems, and AI SaaS MVPs with a 99% on-time, 97% on-budget track record across 200+ projects. 🔊 Voice AI — We build AI voice agents using VAPI, Retell AI, Twilio, Eleven Labs and Deepgram for inbound/outbound call handling, appointment booking, lead qualification, and customer support. Integrates with CRMs, Google Sheets, and booking systems. ⚡ AI Automation & Workflows — End-to-end business process automation using n8n, Make.com (Integromat), and Zapier integrated with DeepSeek, OpenAI GPT-5 (ChatGPT), Anthropic's Claude, and Google's Gemini. We automate Marketing workflows, Sales workflows, Operation workflows, HR Onboarding, Invoice Processing and Customer Support Triage etc. 🔥 AI Agents — Custom AI agents for 24/7 customer engagement, sales qualification, document processing, and internal operations. Built with LangChain, CrewAI, and OpenAI function calling. 🔌 AI Integrations — We integrate AI capabilities into your existing tech stack — CRMs, ERPs, e-commerce platforms, mobile apps. DeepSeek, OpenAI GPT-5 (ChatGPT), Anthropic's Claude, and Google's Gemini API integrations with your business systems. 🚀 AI SaaS MVPs — Full AI-native product development from concept to launched MVP in under 30 days. RAG systems, AI chatbots, AI-powered dashboards, and AI SaaS applications. Scalable and production-ready. less
