I'm an experienced developer who's created hours of award-winning tech-base live shows as part of Foxdog Studios. Nothing sharpens your skills like have 100s of people use your software while you stand in front of them on stage :). I've created, use, and live off a distributed multi-user web-based game engine and editor with live video/audio streaming, AR, body tracking, realtime VFX, scripting, etc. Written in TypeScript, Python and C++.

• PROGRAMMING: Proficient in FORTRAN and experienced in Python, C, C++, and MATLAB. • PARALLEL COMPUTING: Skilled in implementing highly parallelized codes and schemes using MPI. Experienced in managing large volumes of data and proficient in data formats like NetCDF and HDF. • CFD: Developed custom CFD codes from scratch and worked with PDE and ODE solvers. • ML/AI: Proficient in statistics, with a solid grasp of machine learning algorithms, and skilled in utilizing ML libraries like scikit-learn, xgboost, etc..

I help founders and small teams build, fix, and improve production web apps, SaaS dashboards, APIs, and AI automation workflows. I’m a Senior Full-Stack Developer with 8+ years of experience across React, Next.js, TypeScript, Node.js, PostgreSQL, MySQL, TypeORM, Prisma, Supabase, REST APIs, PHP/CodeIgniter, and AI/API integrations. I’m usually most useful when a product is already real — users depend on it, the codebase has history, bugs are blocking progress, workflows are messy, and the team needs someone who can understand the system and ship carefully without breaking existing users. Here’s what I can help with: 1. Full-Stack Web Apps * React, Next.js, TypeScript, Node.js * SaaS dashboards, admin panels, portals, booking/contact flows * Clean UI implementation connected to real backend data 2. Backend, APIs & Databases * REST APIs, webhooks, integrations, auth, roles and permissions * PostgreSQL, MySQL, TypeORM, Prisma, Supabase * Database workflows, migrations, reporting logic, and production bug fixes 3. AI & Automation Workflows * OpenAI / Claude API integrations * AI-assisted business workflows, email automation, AI receptionist-style systems * n8n-style automations, structured outputs, lead/customer communication flows 4. Existing Product Takeover & Debugging * Understanding inherited codebases * Fixing complex business logic * Improving reliability, performance, and maintainability * Clear communication about what is risky, what is broken, and what should be fixed first I have worked on production systems involving registrations, permissions, user/admin workflows, payment-related logic, emails, dashboards, reporting, and business-critical processes. I also have a scientific background in chemistry and computational research, which helps me work well on structured-data products, AI workflows, healthcare/science-related tools, vendor assessment systems, and complex business logic. I’m Turkish, work internationally, and communicate clearly in English and Turkish. I work well with founders and teams who value practical decisions, honest communication, and reliable delivery.

Math modeling, PDEs, numerical methods, Python, Rust, Fortran, C++, Julia, Kubernetes, machine learning, parallel programming, high performance computing, data analysis, error analysis. In my master's thesis, I developed a math model to describe the light field in a seaweed farm, wrote an object-oriented Fortran 90 code, parallelized with OpenMP, to solve the resulting PDE using a finite difference algorithm and less computationally expensive asymptotic approximation for multiple discrete scattering events. I performed a detailed error analysis of the two algorithms to determine necessary grid size and applicable conditions for the discrete scattering approximation for a desired level of accuracy. I wrote a Python wrapper using F2PY for the F90 code, and interactive Jupyter widgets to allow highly parallelized simulations to be launched en masse over large parameter spaces from Jupyter notebooks to a remote kubernetes cluster. Other research interests: - Interactive high performance computing - Group decision making - Machine learning - Virtual reality - Interactive data visualization Miscellaneous skills: - Linux - LaTeX - Web development - Image processing / graphic design - Audio/video editing/recording

I am a results-driven individual with a strong determination to excel in my endeavors. With 7 years of experience as a AI, I have developed a solid foundation in various technologies, including Langchain, Langgraph, Hugging Face Transformers, TensorFlow and much more. My approach to challenges is pragmatic and analytical. I thrive on solving problems efficiently and implementing effective solutions. I am known for my attention to detail and commitment to delivering high-quality work.

I am an American citizen. English is my native language. Spanish is my second language. German is my third. I have also studied numerous other languages. In addition to software development as a contractor, I tutor students online in both computer science and the English language. I am also a technical writer, and I have authored a book on the C programming language.

I’m John Maheswaran, a senior software engineer with 15+ years of experience building high-impact software across industries. I focus on Artificial Intelligence, Extended Reality (AR/VR/XR), RAGs and next-generation technologies as well as UX/UI and product focused design. I hold a PhD in Computer Science from Yale and a BA from Cambridge. 🔍 My Core Focus Areas: - AI/ML & RAG & Generative AI: OpenAI, LangChain, custom LLM fine-tuning, real-time AI agents - XR / AR / VR: Unity, WebAR, 8thWall, iOS ARKit, mobile XR experiences - Interactive Frontends: React, Next.js, Three.js, web-based XR interfaces - Backend APIs & Infrastructure: Python, Golang, NodeJS, PostgreSQL, AWS Lambda, Docker - Design: Figma, Miro, UX/UI design, wireframes, prototyping 🛠️ Tech Stack Highlights: - Languages: Python, Golang, Typescript, Javascript, Swift - Frameworks: React, NextJS, ExpressJS, NestJS, Ruby on Rails - XR/AR: Unity, WebXR, 3D Modeling & Rigging, Game Mechanics - Cloud: AWS, GCP, Azure, Serverless Architecture - CI/CD: GitHub Actions, Terraform, Kubernetes, Docker 🎓 Education: - PhD in Computer Science – Yale University - BA in Computer Science – University of Cambridge 🌟 What Sets Me Apart: - Deep expertise in AI + immersive tech (XR/AR/VR) - End-to-end product development: prototypes to production - Strong UX/UI design integration - Product focused thinking

Hello! I’m Senior developer with over 10 years of professional experience building enterprise-grade applications, RESTful microservices, and cloud-native solutions. I have successfully delivered projects for clients across Europe, the UK, Australia, India, South Africa, and the USA. ✅ Languages: Java (8–21), Kotlin, Groovy, Python, Node.js, TypeScript ✅ Back-End: Spring Boot, Spring Cloud, Spring Security, Micronaut, Camel, Express.js, NestJs ✅ Front-End: Angular, Vue.js, Nuxt, HTMX, Tailwind CSS, Bootstrap ✅ Databases: PostgreSQL, MySQL, Oracle, MongoDB, Redis, DynamoDB ✅ Cloud & DevOps: AWS, CDK, Cloudformation, ECS, API Gateway, Lambda, Cognito, DynamoDB, Azure, Docker, Kubernetes, Terraform, Jenkins, GitHub Actions, Cloudflare ✅ Architecture: Clean Architecture, Hexagonal, Domain-Driven Design DDD, Microservices, Monolith ✅ Messaging: Kafka, RabbitMQ, ActiveMQ, Artemis ✅ Monitoring: Grafana, Kibana, Datadog ✅ APIs: REST, SOAP, gRPC, GraphQL, Websocket, SSE, tPRC ✅ Build & Tooling: Maven, Gradle, Flyway, Liquibase ✅ Other: Jhipster, Gen Ai, Agentic Ai, Hermes Agent, SDD, TMUX ✅ Opensource contribution to popular opensource projects like FlowiseAi, AWS PDK, Mongock, Jhipster lite and Jhipster Main generator. You can confidently entrust me with your project and you will not be let down by our collaboration. I assure you of my strong sense of responsibility and the high standard of the work I deliver, which you can rely on once I become part of your team.

As an AI Developer with 3+ years of experience, I specialize in building intelligent solutions using LLMs, NLP pipelines, Chatbots, RAG systems, and AI agents. Whether you're looking to enhance customer support with a smart assistant or build internal tools that extract knowledge from your data, I can help you integrate AI seamlessly into your products and processes. I’ve worked with a variety of modern AI tools and frameworks to develop reliable, scalable solutions for businesses at different stages, from startups to growing companies. My AI Skill Set Includes: • LLMs: OpenAI (GPT-3.5, GPT-4, Whisper), Claude, open-source models like Llama 3 & Mistral • Chatbots & AI Agents: LangChain, Prompt Engineering, AutoGPT, Autogen • RAG Systems: Retrieval-Augmented Generation using vector stores like Pinecone, Qdrant, ChromaDB • NLP Projects: Named entity recognition, text classification, sentiment analysis, document parsing • Deployment & Integration: Docker, AWS, Azure, Web apps, API development, chatbot platforms Example Projects I Can Help With: · AI assistant integrated into your website or app · Smart knowledge base/chatbot powered by your own documents · NLP tools to extract insights from legal, financial, or medical records · Internal tools that process large volumes of unstructured data · Real-time data analysis & feedback systems using LLMs I prioritize clean, well-documented code and a smooth communication process. If you're looking for a reliable and skilled AI developer who can translate your vision into a working product, let's connect!

I am an experienced C/C++/C# (.NET)/Python/Java/Fortran 90 programmer. I specialize in the development of high performance cryptographic implementations , deep neural networks, desktop application development (both GUI and terminal applications), graphics programming with SDL 2.0 or SFML and OpenGL, network programming using sockets (both BSD sockets and WinSock), multi threading, system security enhancing applications and writing operating system level code for both Windows and Linux operating systems. I am deeply familiar with the Windows API as well as POSIX API, and I have extensive experience working with intricate projects that use the OpenSSL libraries, libAV (core libraries of ffmpeg), libcurl, GMP and many more! I prefer developing cross-platform code and I also have experience in using MPI (Message Passing Interface) via OpenMPI for distributed computing. I love writing efficient, elegant and portable code, that works in the most efficient way possible. I am also a fluent speaker and writer of the English language. If I take up a project, be assured that it will be done with the utmost level of perfection that will make your heart content! Please check out the heartfelt reviews from my clients to understand more about me. I hope to work with you and manifest success in your challenging projects. Thankyou very much for checking out my profile! May God Bless You :)