Hire Top Freelance HubSpot Developers

Adrian Segui

**📝 Profile Context / Summary** With 10+ years across enterprise IT and global freelancing, I am an AI-Stack Architect—not just a full-stack developer. In 2026, the industry has shifted decisively: software is no longer just written; it is architected, governed, and continuously learned. The most valuable engineers are no longer those who simply write code, but those who can turn code into cognition—engineers fluent in the AI-stack. I am that engineer. I design and build agentic platforms—systems where AI doesn't just assist but actively plans, builds, tests, and releases software. I have successfully delivered complex solutions across Medical, Fintech, Employee Management, and SaaS industries, handling everything from AI-native frontends to hyper-scalable microservices with autonomous agent orchestration. **🤖 AGENTIC AI & MACHINE LEARNING** 2026 is the breakout year of AI inferencing—where trained models generate predictions and outputs from new data. Most AI computing is now spent on inference rather than training. I specialize in: Agentic AI & Orchestration: LangChain, LlamaIndex, AutoGen, CrewAI—building multi-agent systems that plan, act, and adapt in real time. Full-stack agent platforms combining proprietary training data, planning models, and custom actuation layers. Generative AI & LLMs: OpenAI GPT-4/API, Google Gemini, Anthropic Claude, HuggingFace Transformers. Retrieval-Augmented Generation (RAG) with vector databases (Pinecone, Chroma, Weaviate, FAISS). AI-Native Development: 42% of committed code is now AI-generated, projected to reach 65% by 2027. I don't just use AI tools—I orchestrate AI agents across the entire SDLC: planning, design, build, test, deployment, and maintenance. Deep Learning & Classical ML: TensorFlow, PyTorch, CNNs (Computer Vision), RNNs/LSTMs (Time-Series/NLP), Scikit-learn, Pandas, NumPy. Model Deployment & Optimization: Model compression, quantization, edge computing, cost-per-prediction optimization. AI Governance & Security: AI-generated code carries roughly double the security risk violations of human-written code. I implement robust governance, testing, and security controls for AI systems. **⚛️ MODERN FRONTEND** React remains the most widely used UI library, with 67% of new enterprise React projects now built on Next.js—a 300% increase since 2023. React Server Components are now the default: Core: React 19, Next.js 16 (App Router, Server Components, Turbopack), Remix, Svelte 5 (runes), Astro. Styling: Tailwind CSS, shadcn/ui (1.87M weekly downloads), Framer Motion, Material-UI. State: Zustand (35% adoption, 35ms updates) vs Redux (38% adoption, 65ms), TanStack Query, Jotai. Build Tooling: Vite 8 with Rolldown (Rust-based, 10-30x faster builds), Turbopack. TypeScript: Used by 38% of professional developers, required in 72% of frontend job postings. **📱 MODERN MOBILE** React Native's New Architecture (stable since 2024) delivers significant performance improvements through synchronous native module calls: Frameworks: React Native (Expo), NativeScript, Flutter. Native: iOS (Swift/SwiftUI), Android (Kotlin & Jetpack Compose). Emerging: GPU-powered rendering for consumer and enterprise apps. **⚙️ MODERN BACKEND & API** Runtimes: Node.js (NestJS, Express), Bun, Deno, Python (FastAPI—57.9% developer usage, up 7% from 2024), Java (Spring Boot 4.0—modularized, Java 25 LTS support). Spring AI 1.0: Built-in support for integrating LLMs and AI services into enterprise Java applications. API Design: RESTful, GraphQL (Federation), gRPC, Webhooks, WebSockets. Event-Driven: Apache Kafka, RabbitMQ, AWS SNS/SQS. **☁️ DEVOPS & CLOUD (2026 Standard)** Cloud-native and Serverless adoption has surpassed 70% penetration in enterprise IT. Multi-cloud is now the standard—Gartner projects over 75% of cloud customers will adopt this model: Cloud: AWS, GCP, Azure (multi-cloud architecture). Containerization & Orchestration: Docker, Kubernetes (K8s), Helm. Serverless: AWS Fargate, Lambda, Cloudflare Workers—extending to data pipelines, real-time streaming, and event-driven microservices. IaC: Terraform, AWS CDK, Pulumi. CI/CD: GitHub Actions, GitLab CI, ArgoCD, Jenkins. **🗄️ DATABASES & SEARCH** Relational: PostgreSQL (PostGIS), MySQL, SQLite. NoSQL: MongoDB, DynamoDB, Firebase. Vector (AI): Pinecone, Chroma, Weaviate (for RAG and semantic search). Search: Elasticsearch, Algolia, Meilisearch. Caching: Redis, Memcached. **🔗 CRM, AUTOMATION & INTEGRATION** In 2026, the CRM market is consolidating around Salesforce, Microsoft, ServiceNow, and HubSpot as a durable challenger. Both platforms have invested heavily in agentic AI, predictive intelligence, and conversational AI: CRMs: Salesforce (Apex), HubSpot (Agentic Engagement Object), Zoho. Low-Code/No-Code: Gartner forecasts the low-code market at $44.5 billion in 2026, with 75% of new enterprise apps built on low-code platforms. Automation: VBA, Excel Macros, Google App Script, Bubble.io, n8n, Make, Zapier. Citizen Development: 80% of low-code users are now "citizen developers". **🚀 Why Partner With Me in 2026?** The software industry has crossed a clear threshold in 2026. Generative AI is no longer just helping developers write code faster—it is reshaping how software is planned, built, tested, and delivered. The role of the developer has evolved from coder to curator of intent, constraints, and outcomes. **I bring:** 10+ years of battle-tested engineering across the full spectrum. Agentic AI fluency—the ability to orchestrate AI agents across the entire SDLC. Systems thinking and architectural judgment—skills that AI cannot replace. Security-first mindset—AI amplifies what's already there; where code quality is managed, AI accelerates delivery; where it isn't, it accelerates technical debt and security exposure. Whether you need an AI-native application, a microservices overhaul, an agentic workflow orchestration, or an intelligent CRM integration—I deliver professional, scalable, and governable solutions. Let's architect intelligence together. **Contact me today.**

Santiago Avila

Senior Software Engineer with 15+ years of experience working with US-based companies, specializing in React-driven frontend systems with strong Node.js backend foundations. I focus on building product-driven, scalable web applications, translating business requirements into maintainable technical solutions with clear technical trade-offs. I’ve worked end-to-end on modern web platforms, contributing to system design, performance optimization, API integrations, and architectural decisions within distributed teams. My strength lies in frontend-leaning full-stack engineering, bridging UI, backend, workflows, and infrastructure considerations without unnecessary complexity or over-engineering. More recently, I’ve been exploring AI-enabled workflows and conversational systems using OpenAI APIs, structured outputs, tool/function calling, and state-driven orchestration patterns to build reliable automation layers around LLMs. My interest is focused on practical AI integration in production systems — especially around workflow reliability, semantic interpretation, validation layers, and handling non-deterministic behavior safely. Some Specific Technologies Experience: ### React / Next.js / GraphQL Experience * I have worked on public projects like [ipsy.com](http://ipsy.com/) using Next.js, React, and GraphQL as the main stack. At IPSY, I contributed to the LATAM platform from the ground up, and also worked on the US platform within the Payments and Commerce teams, improving features and performance for a platform serving approximately 4 million users. * Strong experience building frontend architectures with React, component-driven systems, state management patterns, reusable UI libraries, and GraphQL integrations for scalable consumer-facing applications. * Experience working with distributed frontend/backend teams integrating GraphQL APIs, performance optimizations, and product-oriented development workflows. ### Node.js / Backend / Integrations * Extensive experience building backend services and integrations using Node.js, including API orchestration, authentication flows, webhook handling, and third-party platform integrations. * Experience integrating external systems such as HubSpot, Twilio, and other SaaS APIs to support workflow automation, CRM synchronization, communication systems, and operational tooling. * Familiarity with event-driven architectures, asynchronous processing patterns, and backend orchestration for scalable web applications. ### Fintech / Python Experience * Fintech industry experience developing loan checkout processes and reusable UI systems using Vite integrated as a library within Next.js applications, leveraging both server-side and client-side rendering patterns to improve performance, scalability, and security. * Experience working with Python-based backend workflows and integrations in fintech-related environments, including API communication, data processing, and automation-oriented services. * Comfortable working across mixed Node.js + Python environments depending on infrastructure and business requirements. ### VTEX / E-Commerce Experience * Experience developing and maintaining e-commerce platforms using React and Node.js within VTEX ecosystems. * Worked on storefront customization, checkout experiences, reusable commerce components, and integrations with external commerce-related services and APIs. * Familiarity with performance optimization and scalable frontend architecture for high-traffic e-commerce environments. ### OpenAI / AI Workflow Experience * Experience integrating OpenAI APIs into backend workflows using structured outputs and function/tool calling patterns. * Building state-aware conversational workflows where LLMs are used as semantic interpretation layers rather than uncontrolled chat systems. * Familiarity with handling probabilistic model behavior through deterministic validation layers, fallback flows, and orchestration logic. * Exploring event-driven AI architectures integrating APIs, webhooks, queues, and workflow state management for production-oriented automation systems. ### Supabase * Experience working with Supabase authentication and relational database features for projects in the pharmaceutical and education industries. * Strong familiarity with relational database systems including PostgreSQL and MySQL, covering schema design, queries, and backend integration patterns. ### Firebase * Experience using Firebase Authentication, primarily Google Auth integrations for authentication workflows and session management.

Frances Naty Go

Learning to code can feel overwhelming, but it doesn’t have to be. I’m a Full-Stack Web Developer and Fractional CXO with 15+ years of experience, and I help learners turn confusion into clarity and ideas into real, working projects. I earned my B.S. in Computer Science from UC San Diego, where I fell in love with the balance between creativity and logic, a foundation that now shapes how I teach and build. I founded Goldlilys Media after building dozens of websites for nonprofits, museums, wellness brands, and cultural organizations. Along the way, I discovered something important: people learn best when they understand why something works, not just how to copy it. 🎓 What I Help You Do Whether you're brand new or leveling up, I can help you: ✔ Understand core concepts in HTML, CSS, JavaScript, PHP, Python, and SQL ✔ Build your first website or app step-by-step ✔ Learn WordPress or Drupal development without overwhelm ✔ Improve your problem-solving skills so you can debug with confidence ✔ Turn coding theory into real, portfolio-ready projects ✔ Learn industry best practices for accessibility, UX, and SEO 🧠 How I Teach I focus on: 🎯 Clarity over complexity – No jargon. No guilt. Just understanding. 🎯 Hands-on learning – You’ll build, break, fix, and succeed (with guidance). 🎯 Real-world skills – I teach what actually matters in professional web development. 🎯 Your pace, your goals – Whether you want a career, a side project, or to build your own business. 🔧 My Technical Expertise Frontend: HTML, CSS, JavaScript, jQuery, React, Responsive Design Backend: PHP, Python, SQL/MySQL, Custom API integrations CMS Development: WordPress (custom themes, plugins, ACF), Drupal (theme & module development) Web Fundamentals: Version control (Git), performance optimization, debugging, quality assurance Specializations: Technical SEO, web maintenance workflows, UX best practices, documentation writing, troubleshooting, Accessibility Industry Experience: Advertising/Marketing, Art and Media, IT, Government, Health and Wellness, Higher Education, Life Science and Innovation, Non-Profit Organizations, Museums, Travel

Tim Happ

Versatile professional specializing in technology platforms that focus on automation and optimization. Skilled LAMP Developer, Server Admin, and Marketing Consultant. Experienced with several tools including Eloqua, Responsys, HubSpot, Jira, WordPress and more. I'm here to help!

Moazam

Self-taught full stack developer. Helped over thousands of clients to build their small to large scale websites. I love building high performance and scalable websites. Over the past few years, I have been heavily working on WordPress and Laravel. My top skills are: WordPress (oh, not to mention I used many popular plugins like: ACF, Gravity Forms, etc.), Laravel, MongoDB, MySQL, ElasticSearch, jQuery, Bootstrap, Redis, RETS integration, Plesk, WHM and many more! I occasionally do system admin tasks as I am managing plenty of servers running on CentOS. If you are lost in coding, need a hand or running out of ideas, feel free to reach out to me. I am not available for a full time hire but happy to help you with any kind of help you need with your projects.

Adnan Shahid

HIPAA Certified Guinness Book of World Record Certified Innovative Ideas for new Companies 20+ Certifications Linkedin + Coursera KNIME Certified Complete Analytics and Insights VM. From Initial stages to Dashboards. Bussiness Analytics and Automation. Skills+ : Data Privacy & Security Compliance, Data Governance Frameworks, Data Quality checks, Data Security/protection , Data Retention, Automation, ETL Processes, Data Quality Checks, Data Protection, Business Analytics, Power BI, Data Pipelines, Product Performance Evaluation, Industry experience (Fintech, Health, Real Estate, Manufacture, Telecom, ecommerce, trading, crypto), Figma / XD Interactive prototype. React Front end implementation using Tailwind css. chatgpt prompt engineering. Data Visualization PowerBi, Talend Job, Automation of Jobs, Data warehousing. Masters in Multimedia | National College Of Arts-NCA, Lahore MS in CS National University of Computer and Emerging Sciences, Lahore BCS (Hons) Software Engineering | University of Punjab, Lahore Recent Project: RAAST, BISP, SSGC, MEPCO, RAFM, EHR, Automate bots. Retail - E commerce. Additional Skills: Wordpress , Wix , Squarespace , Shopify , webflow , magento , woocommerce , or any custom CMS issues or development. Specialties: Data Governance Design and Development. User Interface/Experience and Scripting. List of Tools && Tech || Languages: : Teradata Studio – Teradata SQL Assistant – DBViewer – Talend – Toad – Power BI Desktop - SSIS, Heterogeneous Databases( Teradata, IBM DB2, Gauss DB, Oracle, MS SQL Server, NoSQL - MongoDB), Nodejs, Python, Figma, XD, Photoshop, Illustrator, Dreamweaver, sass, Less, Node.js, ionic, Javascript, Jquery, cordova, HTML5/css3 , Php, Flash As3, Javascript, Jquery, jMobile , angular JS, phonegap.... OS: Mac And Windows. Note: I usually reply instantly but if not replied, please i might be sleeping or away. :) Cheers

Arjun Kumar

I'm Arjun, an experienced Android Engineer with a proven track record of 8 years in designing, developing, testing, and maintaining Android applications. My expertise includes a strong grasp of Android application architecture, including MVVM, MVP, MVI, Clean, and multi-modular architecture. I am proficient in Kotlin, Flutter, and Java programming languages and adhere to best practices for scalability, performance, and user experience. I thrive in collaborating and working with cross-functional teams to achieve project objectives, and I'm well-versed in Agile methodologies like Scrum and Kanban. In addition to Android development, I have hands-on experience with n8n, where I’ve built and automated lead generation workflows, API integrations, and internal tools to streamline operations and reduce manual tasks using low-code, event-driven automation. I am passionate about staying up-to-date with the latest trends and technologies in the industry, and I continuously expand my skillset to create innovative solutions for Android app development. Some highlights of my experience include: • Expertise in Android Lifecycle and utilization of various open-source libraries. • Successfully delivered 20+ apps on the Google Play Store. • Experience in working with large-scale and complex codebase applications. • Knowledge of Flutter and Bloc pattern. Skills & Technologies Android | Android Studio | Kotlin | Java | Coroutines | Flow | RxJava | Rx Android | Compose | MVVM | MVI | MVP | Clean Architecture | SOLID | Dagger | Hilt | Koin | View Binding | Data Binding | Retrofit | OkHttp | Restful API | GraphQL | JSON | Work Manager | Navigation | Sqlite | Room | Firebase | JUnit | | Mockito | Mockk | Roboletrics | Espresso | TDD | CI/CD | Jenkins | GitLab | GitHub | Bitbucket | Jira | Confluence | Zeplin | Invision | Figma | | Google Play Store | N8N | Automation | Web Scraping |Lead Genration with AI Let's connect and discuss how I can contribute to your team's success in creating outstanding Android applications!

Taylor Peterson

A Senior Software Engineer with over a decade of experience in building frontend and backend applications brings enthusiasm, dedication, and a passion for new technologies. Leading innovative solutions and working with the business to understand needs and requirements. Skilled in learning and excelling with new software, as well as troubleshooting and refactoring legacy code with ease.

Lee Woodman

I bring a unique blend of skills essential for businesses aiming to optimise their performance in the digital age. As the founder of Visit Digital, a consultancy firm, I have had the privilege of collaborating with influential brands such as The Lad Bible, Naissance, Dents, and Electrifying.com and several of the worlds largest development banks. My expertise lies in harnessing the power of business data to enable companies to make swifter, more informed decisions. I excel in guiding digital strategies and technology selections at the inception of digital initiatives, allowing businesses that engage with me early on to leverage my expertise and insights for their benefit. With a comprehensive background in the digital marketing realm, I am dedicated to assisting businesses in navigating and succeeding in this constantly evolving field. If you are seeking a seasoned professional to help you make informed decisions, optimise your digital strategy, and ultimately drive success, I am here to help. Let's connect and discuss how my expertise can benefit your business in this rapidly evolving digital landscape.

Himanshu Gupta

Building a NoCode SAAS Marketing platform for SMBs to simplify marketing and sales using Pre-made recipes, colletarals and automations. NoCode enthusiast who have been working on No-code tools like Webflow, Zapier, Airtable etc. from past 2+ years. Built a mobile-first Audience and Content monetisation tool for creators based out of India named Rehustle. Led the B2C Platform of AspiringMinds (Acquired by SHL), launched new initiatives for a suite of B2B SAAS products in the tenure of 4.5 years. Started my entrepreneurial journey in my sophomore year of university as a software developer and built a Conversation AI Chatbot along with a Customer Service based application for ICICI Bank (Phone and Branch banking) and launched it as a SAAS later on. The application was deployed and integrated with all other applications and services at the bank. Co-founded a Social Discovery platform in the fourth year of my graduation with college seniors, gained indefinite exposure and experience in developing a product from scratch. Worked as a Technical Product manager, built and launched a number of scalable and reliable products(Mobile & Web apps both) prioritizing the UI and UX, conceptualizing the customer journeys across channels while solving their pain points. Taught college students about web technologies with Acadview and helped them in developing a frontend course specifically for Indian students, introducing a completely different aspect of learning any technology or concept. No-code: Webflow, Airtable, Adalo, Bubble, Zapier, Softr Low-code: Appsmith, Retool, Strapi CMS Others: Hubspot, Stripe, Zoho, Activecampaign, Pipedrive, Google Analytics (GA4), Google Tag Manager (GTM) Worked with 25+ Clients based out of USA, UK, Germany, Europe, UAE, Dubai to help them with RevOps, CRM Automation using Hubspot, setting up Events tracking with GTM & GA4 along with funnel reports. If you are stuck in any problem related to product, technology, software development, web development or app development, automations, CRM integrations, feel free to contact me. #Hubspot #CRM #HubspotPartner #HubspotCertified #RevOps #API #Integrations #Automations