10/20/2026 updated
Premium member
100 % availableSenior AI-Powered Full Stack Web/Mobile App Developer | ML / LLM / AI Agent Systems
Hawthorne, USA
Only remote
B.S. in Computer ScienceAbout me
AI-focused Full Stack Engineer with 10+ years of software engineering experience and 6+ years specializing in Applied AI/ML, Gen AI, LLMs, and agentic AI. I help startups and businesses design, build, scale, and optimize AI prod—from initial architecture, proof of concept to production-ready SaaS.
AI AgentsLLMFlutterHTMLJavaScriptPHPArtificial IntelligenceAmazon Web ServicesAutomationCascading Style Sheets (CSS)DjangoPython (Programming Language)Machine LearningCloud ServicesSQL Databases
AI / ML / LLM Engineering
Expertise in building production systems powered by large language models, including RAG pipeline design, multi-agent orchestration frameworks, prompt engineering, fine-tuning (LoRA/PEFT), and autonomous agent systems using OpenAI API, Anthropic Claude API, LangChain, LlamaIndex, Hugging Face Transformers, and vector databases such as Pinecone, Weaviate, and Chroma.
Full Stack Web & Mobile Development
Strong proficiency in building scalable web and mobile applications using React, Next.js, React Native, Redux, Tailwind CSS, Node.js, Express, FastAPI, Django, GraphQL, and REST API design, with experience delivering production-grade MVPs and SaaS platforms.
Cloud Infrastructure & MLOps
Hands-on experience with model serving and inference optimization, token/cost management, guardrails, LLM observability/logging, and GPU-backed deployment on AWS (EC2, Lambda, S3, SageMaker) and GCP, including CI/CD pipelines via GitHub Actions and containerization with Docker and Kubernetes.
Backend Development
Proficiency in backend technologies including Node.js, Express, FastAPI, Django, GraphQL, and REST API design, with experience building microservices architectures and scalable data access layers.
Database Management
Experience with relational and non-relational databases including PostgreSQL, MongoDB, and Redis, as well as vector databases for AI-powered search and retrieval applications.
Programming Languages
Proficiency in Python, JavaScript, and TypeScript as primary languages, with basic knowledge of SQL, Swift, and Kotlin.
Mobile App Development
Experience building cross-platform mobile applications using React Native, delivering client-facing apps to the App Store and Play Store serving 100K+ combined active users.
Agile Practices & Team Leadership
Experience leading cross-functional engineering teams using Agile/Scrum methodologies, conducting code reviews, mentoring mid-level engineers, and establishing CI/CD standards that reduce production incidents.
Prompt Engineering & Evaluation
Systematic prompt evaluation, A/B testing across model versions, automated regression testing against prior prompt versions, and cost/latency optimization for LLM inference at scale.
Expertise in building production systems powered by large language models, including RAG pipeline design, multi-agent orchestration frameworks, prompt engineering, fine-tuning (LoRA/PEFT), and autonomous agent systems using OpenAI API, Anthropic Claude API, LangChain, LlamaIndex, Hugging Face Transformers, and vector databases such as Pinecone, Weaviate, and Chroma.
Full Stack Web & Mobile Development
Strong proficiency in building scalable web and mobile applications using React, Next.js, React Native, Redux, Tailwind CSS, Node.js, Express, FastAPI, Django, GraphQL, and REST API design, with experience delivering production-grade MVPs and SaaS platforms.
Cloud Infrastructure & MLOps
Hands-on experience with model serving and inference optimization, token/cost management, guardrails, LLM observability/logging, and GPU-backed deployment on AWS (EC2, Lambda, S3, SageMaker) and GCP, including CI/CD pipelines via GitHub Actions and containerization with Docker and Kubernetes.
Backend Development
Proficiency in backend technologies including Node.js, Express, FastAPI, Django, GraphQL, and REST API design, with experience building microservices architectures and scalable data access layers.
Database Management
Experience with relational and non-relational databases including PostgreSQL, MongoDB, and Redis, as well as vector databases for AI-powered search and retrieval applications.
Programming Languages
Proficiency in Python, JavaScript, and TypeScript as primary languages, with basic knowledge of SQL, Swift, and Kotlin.
Mobile App Development
Experience building cross-platform mobile applications using React Native, delivering client-facing apps to the App Store and Play Store serving 100K+ combined active users.
Agile Practices & Team Leadership
Experience leading cross-functional engineering teams using Agile/Scrum methodologies, conducting code reviews, mentoring mid-level engineers, and establishing CI/CD standards that reduce production incidents.
Prompt Engineering & Evaluation
Systematic prompt evaluation, A/B testing across model versions, automated regression testing against prior prompt versions, and cost/latency optimization for LLM inference at scale.
Experience
Professional experience10+ years
Freelancer since2026
Languages
EnglishNative speaker
Project history
Led a cross-functional team of 5 engineers building AI-powered SaaS products, owning AI architecture end-to-end across React/Next.js frontends and Python/Node.js microservice backends. Designed and shipped a production RAG-based customer support agent (LangChain + Pinecone) reducing average ticket resolution time by 38%. Built a multi-agent orchestration framework used across three internal products. Integrated OpenAI and Anthropic Claude APIs into three production SaaS platforms. Implemented guardrails, output validation, and fallback/retry logic for LLM calls in production, reducing hallucination-related support tickets by 50%.
Built an open-source TypeScript/Python framework for chaining and coordinating multiple LLM agents with tool use, long/short-term memory, and hierarchical task planning. Implemented pluggable model backends (OpenAI, Anthropic) and a tool-calling interface for safely executing external actions with permissioning. Available on GitHub (codegod4444).
Designed and built a full stack SaaS MVP (Next.js, FastAPI, PostgreSQL) for versioning, testing, and evaluating LLM prompts across teams, including automated regression testing against prior prompt versions.
Certificates
Certified AI Engineer
Scrum A.2023
Certified Web Developer
Scrum Ali2021