๐ฏ Liferay DXP 7.4 Certified Professional Back-End Developer
โ 10 Years on Liferay Platform
๐ 100% Job Completion | Top Rated on Upwork | 7500+ Hours on Upwork
I have 10 years of expertise in Software Development, Solution Architecture, and Product Design, with a strong focus on Liferay and Spring technology.
๐ผ ๐๐๐๐ก๐ง๐ข๐๐๐ฅ ๐๐ค๐ข๐ฅ๐ฅ :
๐๐จ๐ซ๐ : Java, J2EE, Liferay(6.X/7.X), Spring Boot, JSF, PrimeFaces,Icefaces, Richfaces, FHIR, ABDM, SNOMED-CT,REST, SOAP web services
๐ ๐ซ๐จ๐ง๐ญ-๐๐ง๐ : AngularJS, ReactJS, HTML4/5, XHTML, XML, CSS3, jQuery, JavaScript, AJAX
๐๐๐ซ๐ฏ๐๐ซ๐ฌ : Tomcat, JBoss/Wildfly and Jetty, GlassFish
๐๐๐๐ฎ๐ซ๐ข๐ญ๐ฒ : Spring Security, OAuth2, JWT
๐๐๐ญ๐๐๐๐ฌ๐ : SQL, MySQL, PostgreSQL, MongoDB and Oracle
๐๐ง๐ญ๐๐ ๐ซ๐๐ญ๐ข๐จ๐ง๐ฌ : Gmail, Google Meet, Google Calendar, Zoom, RazorPay, Stripe, SMTP, Twilio, DocuSign, Google Maps API, PayPal
๐๐๐๐ฅ๐ญ๐ก๐๐๐ซ๐ ๐๐ญ๐๐ง๐๐๐ซ๐ : FHIR | EHR | EMR | SNOMED | HL7 | OpenEHR | OpenEMR | ABDM
๐๐๐๐ซ๐๐ก-๐๐ง๐ ๐ข๐ง๐๐ฌ : Apache Solr, Elastic Search
๐๐ฅ๐จ๐ฎ๐ ๐๐ง๐ ๐๐๐ฏ๐จ๐ฉ๐ฌ : AWS, Google Cloud, Azure, Jenkins, CICD, Docker, Kubernetes
๐๐๐ฌ๐ญ๐ข๐ง๐ : JTest, JUnit, Mockito and Powermock
๐๐จ๐๐ ๐๐ฎ๐๐ฅ๐ข๐ญ๐ฒ ๐๐จ๐จ๐ฅ๐ฌ : Crucible and Sonarqube
๐๐ฎ๐ข๐ฅ๐ ๐ญ๐จ๐จ๐ฅ๐ฌ : Maven, Gradle, Ant, npm, grunt and webpack
๐๐๐ : SVN, GIT, GITLAB, Bitbucket
๐๐ : Linux, Windows and Mac OS
๐๐ฎ๐ /๐๐ฌ๐ฌ๐ฎ๐ ๐ญ๐ซ๐๐๐ค๐๐ซ๐ฌ : Jira, asana, Trello
๐๐๐ข๐๐๐ซ๐๐ฒ ๐๐ฑ๐ฉ๐๐ซ๐ญ๐ข๐ฌ๐ :
โ Expert in almost all OOTB features [ Sites, Pages, Webcontents, Fragments, Layouts, Asset Publishers, Categories, Tags, Search, Workflows, User Management, Roles, Permission, User Groups ]
โ Implemented Custom Portlets [ using MVC, React, Spring, JSF, service builder and standards like OSGI, JSR 168 and 268 ]
โ Implemented REST API using Liferay Rest builder
โ Implemented themes [ using Freemarker, velocity ],
โ Customized Liferay [ using Service wrapper, Portlet filter, Lifecycle events, Model listeners,
Search contributors, JSP, Core Classes ]
โ Implemented Web Fragment [ Freemarker, HTML, CSS, Javascript ]
โ Implemented SSO Integration supports SAML, Keycloak, LDAP, OpenId, OAuth, and more
โ Implemented SMS and WhatsApp Integration using Twilio
โ Implemented Third-Party integration using REST API or client SDK
โ I have recently upgraded Liferay 7.0 to Liferay 7.4 including data and code migration both.
Looking forward to working with you to develop and deliver a fantastic product and Solutions as per your Business Requirements.
PrimeFaces
Jakarta Server Faces
Hibernate
Java
Spring Security
Spring Framework
Spring Boot
MySQL
React
Bootstrap
CSS
HTML
Web Development
Liferay
Ronak P.
Ahmedabad, India
$25/hr
5.0
2 jobs
Healthcare AI built by an engineer who knows buyers are right to filter out generalists. Medical imaging on DICOM, clinical NLP that handles negation and hedging, HIPAA-aware PHI pipelines, patient-facing apps that respect privacy for hospitals, radiology centres, pharma R&D, CROs, medical device makers, health-tech teams.
I work with the Brainy Neurals team as the healthcare-AI engineer. My focus sits between "we have clinical data" and "validated AI helping clinicians" model design, PHI handling under your BAAs, on-prem vs cloud, validation against radiologist ground truth, shipping into EHR or device workflow.
WHAT I BUILD / IN HEALTHCARE
Medical imaging AI โ DICOM ingestion, de-identification per Safe Harbor, organ and lesion segmentation on CT and MRI, abnormality detection, NIfTI and ITK pipelines, 3D Slicer. Built on MONAI, nnU-Net, TotalSegmentator, RadImageNet, validated against radiologist consensus.
Clinical NLP and document AI note summarisation, ICD and SNOMED mapping, negation and hedging, family-vs-patient history disambiguation, medication extraction, lab-report parsing, prescription OCR. The grammar of clinical text is its own thing; I treat it accordingly.
Pharma and clinical research clinical protocol to eCRF extraction (demographics, vitals, inclusion-exclusion, study-arm), systematic review using RoB2, GRADE, PRISMA, citation validation, batch record digitisation, evidence assembly.
Patient-facing apps GI symptom-trackers with AI food and lifestyle recommendations, diabetic and gut-condition dish-suggestion, telehealth onboarding, chronic-care intake, mental-health support. Flutter or React Native fronts, FastAPI backends.
Hospital workflow AI appointment automation, triage, hand-hygiene monitoring, fall-detection in wards (pose-based, no face recognition), bed-occupancy.
THE STACK / FOR MEDICAL & PHARMA
Imaging: MONAI, DICOM, NIfTI, ITK, 3D Slicer, nnU-Net, TotalSegmentator, RadImageNet, modality fusion.
Clinical NLP and docs: Docling for medical PDFs, DocTR and TR-OCR for prescription and lab OCR, GPT-4o multimodal for complex layouts, Claude and Gemini for clinical reasoning, regex and Pydantic validation, NegEx-style negation with LLM verification.
Knowledge: Neo4j for clinical knowledge graphs (drug-drug interaction, condition-symptom, contraindications). pgvector or Qdrant for medical literature. RAG over institutional protocols, authoritative sources only.
Infrastructure: FHIR and HL7 v2 with EHRs, OMOP CDM for research, FastAPI for clinical APIs, Flutter and React Native for patient apps, AWS and Azure inside client BAAs, on-prem Ollama and vLLM where data cannot leave.
WHO I BUILD FOR
Hospitals and clinics radiology AI, patient-flow analytics, EHR decision support, ward-safety.
Radiology centres, DICOM pipelines, organ and lesion segmentation, second-read AI, reporting integration.
Pharma R&D and CROs clinical protocol extraction, systematic review, eCRF generation, evidence assembly.
Medical device (pre-clearance) model prototyping, validation harnesses, dataset curation. I do not claim FDA-cleared deliverables; I build the substrate that goes through your regulatory team.
Telehealth and health-tech patient intake, AI triage, multilingual symptom-checker.
Specialty practices dental, dermatology, gastroenterology, oncology, mental health. Specialty-tuned models on small datasets.
Health insurance claim review, prior-auth triage, appeals support, evidence extraction.
HOW I WORK / WITH HEALTHCARE BUYERS
Discovery is a 30-minute call: data sources, clinical workflow, compliance posture (HIPAA, GDPR, local). By the end I tell you whether the use case is feasible, validation plan, where ground truth comes from, how PHI flows. If it touches a regulated device pathway, I tell you what is in scope for me and what your regulatory team owns.
Pricing is fixed-scope per milestone feasibility, dataset and PHI design, model build, validation, integration handoff. Hourly only for maintenance after deploy.
THE BRAINY NEURALS BACKING
I work with the Brainy Neurals team 15 AI engineers, NVIDIA Inception Partner, AWS Activate, Microsoft for Startups. When a project needs ward-monitoring cameras, edge deployment on hospital hardware, RAG over clinical docs, or workflow automation around the AI, that capacity sits with the team I bring them in cleanly, you do not manage multiple vendors. For pure healthcare model and clinical-NLP work I lead end to end myself.
LET'S TALK / IF
You are inside healthcare or pharma, you have a clinical workflow AI can genuinely help with, you understand the validation and compliance work this requires, and you want a senior engineer who has built medical imaging, clinical NLP, and patient-facing apps before not a generalist learning HIPAA on your project. Tell me your data, workflow, compliance. I reply within 24 hours with feasibility, validation approach, milestones.
Artificial Intelligence
Generative AI
Computer Vision
Prompt Engineering
LLM Prompt Engineering
LangChain
Vision-Language Model
Edge AI
AI Agent Development
AI App Development
Retrieval Augmented Generation
AI Development
AI Implementation
AI Video Generator
AI Chatbot
Nidhish P.
Ahmedabad, India
$40/hr
5.0
29 jobs
Lead Software Engineer with 13+ years of experience across full-stack products, platform foundations, collaboration tools, and large-scale marketplace systems.
Focusing on building complex frontend surfaces and platform capabilities that scale across products. Experience spans Vue/Nuxt applications, microapps, design systems, collaboration workflows, and AI-assisted product experiences, with a strong emphasis on performance, accessibility, and maintainability.
Recent work includes agentic AI and Claude-based workflows for accelerating frontend implementation while keeping code quality, maintainability, and user impact central to the process.
Core technologies include JavaScript, TypeScript, Vue, Nuxt, React, Flutter, Laravel, NodeJS, PostgreSQL, Redis, Docker, and cloud deployments.
Front-End Development
Full-Stack Development
Vue.js
Vuex
React
JavaScript
TypeScript
HTML5
CSS
Laravel
Node.js
AI Agent Development
AI-Generated Code
AI App Development
AI Implementation
Bhavika K.
Ahmedabad, India
$31/hr
5.0
69 jobs
๐ AWS Certified Generative AI Developer - Professional
๐ AWS Certified Machine Learning โ Specialty
๐ AWS Certified Data Analytics โ Specialty
๐ Google Cloud Professional Machine Learning Engineer
๐ Google Cloud Professional Cloud Architect
I help businesses design, build, and deploy production-ready Generative AI applications powered by LLMs, AI Agents, RAG pipelines, Voice AI, and workflow automation.
With 8+ years of experience in Machine Learning, NLP, Computer Vision, and Cloud AI, I specialize in transforming AI prototypes into scalable, enterprise-grade solutions running on AWS, GCP, and Kubernetes.
What I Build
โ AI Agents & Agentic Workflows
* Single-Agent & Multi-Agent Systems
* LangGraph Agent Development
* MCP (Model Context Protocol) Integrations
* Tool Calling & Function Calling Agents
* Autonomous Research & Task Execution Agents
* AI Workflow Automation
โ RAG & Enterprise Search
* Retrieval-Augmented Generation (RAG)
* Enterprise Knowledge Assistants
* Internal Documentation Chatbots
* PDF, SharePoint, Confluence & Website Search
* Hybrid Search (Vector + Keyword)
* Agentic RAG Architectures
โ Conversational AI & Voice AI
* AI Chatbots
* Customer Support Assistants
* AI Voice Agents
* Call Center Automation
* Real-Time Speech-to-Speech Applications
* Voice Ordering & Appointment Booking Systems
GenAI Technologies
๐ LLMs
OpenAI GPT-4o, GPT-5, Claude, Gemini, Llama, Mistral, Gemma, AWS Bedrock
๐ Agent Frameworks
LangGraph, LangChain, LlamaIndex, CrewAI, AutoGen, LangSmith, LangFuse
๐ Vector Databases
Pinecone, Qdrant, Weaviate, Milvus, ChromaDB, pgvector, Elasticsearch, Redis
๐ Voice AI
Vapi, ElevenLabs, Deepgram, AssemblyAI, Whisper
๐ Prompt Engineering & Optimization
DSPy, TextGrad, Structured Outputs, Guardrails
๐ LLM Deployment
vLLM, Hugging Face TGI, TensorRT-LLM, Ray Serve, TorchServe
Machine Learning & MLOps
๐ TensorFlow
๐ PyTorch
๐ Hugging Face
๐ Scikit-Learn
๐ Spark ML
๐ Forecasting & Predictive Analytics
๐ Computer Vision Solutions
Cloud & Infrastructure
AWS:
Bedrock, SageMaker, Lambda, ECS, EKS, Textract, Comprehend, Rekognition, Transcribe, Polly, Forecast, Personalize
Google Cloud:
Vertex AI, Agent Builder, Gemini, Document AI, Dialogflow CX, GKE, Cloud Run, Cloud Functions
Azure:
Azure OpenAI, Azure ML
Infrastructure:
Kubernetes, Docker, CI/CD, GitHub Actions, Terraform
Industries Served
โ Retail & eCommerce
โ Manufacturing
โ Supply Chain & Logistics
โ Automotive
โ Healthcare
โ Financial Services
โ Customer Support Operations
Whether you need an AI Agent, RAG chatbot, Voice AI solution, LLM-powered application, or a complete GenAI platform deployed on AWS/GCP, I can help take your idea from concept to production.
Deep Learning
Natural Language Processing
PyTorch
Google AutoML
Machine Learning
TensorFlow
Computer Vision
Amazon SageMaker
Python
Image Processing
Amazon Web Services
Google Cloud Platform
AWS Glue
Amazon Redshift
Artificial Intelligence
Jitendra R.
Ahmedabad, India
$20/hr
4.7
5 jobs
Hey, i am Jitendra ๐
Give me something to build and i'll build it for you in the most efficient and optimised way. so it works for you 24/7. Thats my promise.
As a Full-Stack Developer with 10+ years of experience building scalable, high-performance web applications. I specialize in React, Node.js, NestJS, MongoDB, and MySQL, and have a strong foundation in PHP, WordPress, Magento, and Laravel from my early career.
I bring more than just code, i bring a product mindset, strong UX vision, and clear technical decision-making. From architecting databases to crafting pixel-perfect UIs, I approach every problem with a holistic and end goal perspective, ensuring that every layer of your product, from backend to frontend, works in perfect sync.
Hereโs what I bring to your project:
๐ Frontend Expertise: React, Next.js, Vite, TailwindCSS, Redux, Zustand, Mobx, Storybook, CodeMirror, Draft.js, TipTap, Turborepo.
๐ง AI & Agent Systems: OpenAI, Anthropic, LangChain, LangGraph, multi-agent pipelines.
๐ง Backend : Node.js, NestJS, Koa, Express, TypeORM, REST APIs, WebSockets, BullMQ, RabbitMQ.
๐ป CMS & DevOps: Strapi, Supabase, AWS (S3, EC2), CI/CD, Docker.
I guarantee to deliver only top quality product. The results are solutions that consistently meet my clients needs and exceed their expectations.
Feel free to contact with me for your project!
Best wishes,
Jitendrasinh Rana
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