Umar H.

Custom Software | Workday Consultant | Agentic AI Developer | Full Stack Web & Mobile Engineer — Upwork Top Rated Plus · 100% JSS · Top 1% on Stack Overflow · 19.7M reach · $70K+ delivered · 36 contracts · all 5.0 stars. Hi there, Ready to work with someone who can turn your ideas into real, scalable solutions — on time and with care? I’m Umar — a senior software engineer, full-stack developer, workday Developer, and project manager with over 8 years of experience delivering scalable, secure, and high-performance digital solutions. I turn complex business ideas into robust, production-ready applications across web, mobile, and cloud platforms. Whether you're building a custom web app, a cross-platform mobile application, or a cloud-native SaaS product, I bring a strong focus on scalability, security, and long-term maintainability. I specialize in Workday HCM, Full Stack Development, RAGs, LLMs, LangChain, CrewAI agents, and Generative AI Modeling, offering a unique blend of skills that enables me to tackle diverse projects. Whether you need a complex web application, a mobile app, or cutting-edge AI solutions, I’m here to help. WORKDAY CONSULTATION: ────────────────── • Workday Modules: Core HCM · Compensation · Benefits · Talent · Recruiting · Time Tracking · Absence ·Payroll · Financial • Workday Services: Calculated Fields · Custom Reports, Dashboards, &Business Processes • Workday Payroll: Pay Periods, Paygroups, Run Category, Pay Run Calculations, Pay Accumulation • Workday Integrations: Workday Studio · EIB · Core Connectors · REST & SOAP APIs · RaaS, Orchestrate • Security & Compliance: Data Governance · Role-Based Access Control, & Compliance Solutions CUSTOM FULL STACK WEB DEVELOPMENT: ───────────────────────────── • Backend: Python · Django · FastAPI · Flask · Node.js · NestJS · Golang · Java Spring Boot • Frontend: React · Next.js · TypeScript · Angular · Vue.js • Databases: PostgreSQL · MySQL · MongoDB · Redis · DynamoDB · Elasticsearch CUSTOM MOBILE APPS DEVELOPMENT: ─────────────────────────── • Native iOS (Swift) & Android (Kotlin) • Cross-platform apps with React Native & Flutter • Progressive Web Apps (PWAs) CLOUD & DEVOPS: ───────────── • AWS (EC2, S3, Lambda, RDS), Google Cloud, Azure • CI/CD pipelines, Docker, serverless architecture, infrastructure automation • Database design (MongoDB, PostgreSQL, MySQL, Redis) AGENTIC AI & LLM ENGINEERING: ────────────────────── • Frameworks: LangChain · LangGraph · CrewAI · AutoGen · LlamaIndex · n8n • Models: GPT-4o · Claude 3.5 · Llama 3 · Mistral · Gemini · Stable Diffusion • Tools: OpenAI API · Hugging Face · TensorFlow · PyTorch • Applications: AI Chatbots · AI-Generated Content, Image Processing · AI Speech-to-Text · NLP • Vector DBs: Pinecone · pgvector · Weaviate · Chroma • LLMOps: LangSmith · Helicone · Weights & Biases • Deployment: AWS SageMaker · Azure OpenAI · Google Vertex AI · vLLM • Delivered: Multi-agent Workday HCM systems · RAG pipelines over enterprise documents · AI automation with n8n AI/ML & AUTOMATION: ─────────────── • Chatbot development, machine learning integration, data workflows • Workflow automation, intelligent forms, recommendation engines E-COMMERCE & CMS DEVELOPMENT: ───────────────────────── • Shopify development, custom Shopify apps, theme customization • WordPress, WooCommerce, plugin development, performance optimization • Amazon & eBay integration GAME DEVELOPMENT: ─────────────── Unity, Unreal Engine — 2D & 3D games for mobile & desktop MY VALUABLE CLIENTS: ──────────────── • Extreme Networks US • Emumba USA • Cheetay UK • Ohanna AI Canada · • Netnology US • Champion Sports UK INDUSTRIES SERVED: ────────────── • E-commerce, Healthcare • On-Demand Services • EdTech, Non-Profit • Social Platforms • B2B SaaS • Logistics and more. Throughout my career, I have collaborated with major tech companies, contributing to cutting-edge solutions for their products while helping numerous startups globally launch their projects successfully. Let’s collaborate to bring your software vision to life — whether it’s a web portal, mobile app, or backend platform. I’ll help you build it right. Best regards, Umar Senior Software Engineer | Full Stack Developer | Workday Developer | Tech Lead