Full-stack AI engineer who builds fast, scalable web apps that deliver. I create modern applications using MERN, Next.js, and FastAPI with clean, reliable backends. From SaaS platforms to AI-powered tools, I handle the entire build from idea to production. My focus is simple: launch solid MVPs quickly and build systems that scale as your business grows. With 6+ years in software engineering, including 4+ years of industry experience, I have worked on production applications across fitness tech, project management, IoT, media, AI automation, document processing, and fintech. On the backend I work primarily with Node.js, FastAPI, NestJS, and GraphQL, connecting to databases like PostgreSQL, MongoDB, Redis, and DynamoDB. For AI features I have integrated OpenAI, Gemini, LangChain, and built document extraction pipelines using AWS Textract and PyMuPDF. On the frontend I build with Next.js, React, and React Native, using TypeScript throughout. I have hands-on experience with AWS services including Lambda, RDS, Cognito, SQS, and S3, and I am comfortable with real-time systems using WebSockets and SSE. I have also worked with third-party integrations like Stripe, Slack, SnapTrade, Mixpanel, and Upwork API as well as hardware communication over LoRaWAN. I write clean, maintainable code and I am comfortable taking ownership of a project from the first commit to production deployment.

Romanian native speaker with strong English skills and experience in translation, localization, and content creation. I have contributed to multiple Crowdin localization projects, including game localization (Travellers Rest, Farm Together 2), open-source software (FreeCAD), health-related content (Audiopedia), as well as several TED Talks subtitling and translation projects. I also create bilingual motivational content on Instagram and authored a self-learning English guide for Romanian speakers, showcasing my content writing and instructional skills. Alongside translation and writing work, I am interested in AI training, data annotation, and website / UX testing. I aim to apply my language skills, attention to detail, and user-focused mindset to help improve digital products and content. Services I offer: • English → Romanian translation and proofreading • Localization and subtitling (games, software, audiovisual content) • Content writing and instructional materials in Romanian • AI training and data annotation tasks • Website and UX testing with structured feedback I focus on accuracy, clarity, and delivering reliable work that helps companies improve their content and user experience.

Interested in opportunities revolving around Alexa Skill development, IoT hardware design and software development, Serverless Computing and Amazon Web Services. Five published Alexa Skills. Five more skills in development or beta. Assisted in the development of AWS Certification Examinations by serving as a subject matter expert. Certifications: Amazon Solution Architect - Associate, Certified Amazon Developer - Associate Technical Proficiencies: Database Systems and Methods: MySQL 5.X, AWS DynamoDB CMS Platforms: WordPress, Joomla, Concrete5 Languages: PHP v7.x, HTML5, CSS3, Node JS, JavaScript, BASH, AWS CLI, ASK CLI, Alexa ISP, NodeMCU Libraries and Frameworks: jQuery, jQuery, AWS SDK, Alexa SDK IoT Devices: ESP8266MOD, ESP-12E, AtMega328, SPI ST7735S 128x160 TFT Displays, OLED 128x64 Displays Iot Protoboards: Ardiuino Uno, Adafruit Huzzah Other Experience and Skills: Electronic circuit design, electronic circuit CAD and circuit board fabrication. On Premise Tools: Full electronics bench with power supplies, signal generators and oscilloscopes. 300x180 CNC, 1500x1500 CNC. Full surface mount station including video scope reworks station and oven. Software Tools: Linux, Open Source. FreeCAD, KiCAD, VS Code, Inkscape.

I am an Aerospace Engineer specialized in Computational Fluid Dynamics (CFD), Aerodynamics, and Multiphysics Simulation. My work focuses on developing and optimizing numerical models, solvers, and CFD workflows for aerospace, automotive, and energy applications. I have strong expertise in: -- CFD and Aerodynamics: OpenFOAM, ANSYS Fluent, ICEM CFD, ParaView, and COMSOL Multiphysics -- Thermal and Multiphysics Modelling: Conjugate Heat Transfer, non-Newtonian fluids, and coupled flow–structure simulations -- Automation & Programming: Python (custom CFD solvers, data processing, post-processing automation), MATLAB, and Bash scripting -- CAD & Design: SolidWorks, Autodesk Inventor, FreeCAD -- HPC Simulations: Experience running CFD jobs on 64-core clusters using MPI and domain decomposition Work Experience: -- Vestas Wind Systems A/S: Design and optimization of vortex generators and Gurney flaps for wind-turbine blades using CFD and aerodynamic modeling. Selected Projects: -- Formula Student UMinho – Aerodynamics & Cooling: Designed air and liquid cooling systems for the accumulator and motor using ANSYS Fluent (2D/3D CFD + conjugate heat transfer). -- Scientific Publication (MDPI Sensors, 2025): Co-author of “Edge-Based Real-Time Fault Detection in UAV Systems via B-Spline Telemetry Reconstruction and Lightweight Hybrid AI” (DOI: 10.3390/s25164944 ). -- Biomedical CFD Model: Simulated non-Newtonian blood flow in COMSOL, integrating ultrasound sensor transduction for velocity estimation. -- OpenFOAM & Machine Learning: Developing hybrid CFD–ML frameworks for coarse-to-fine mesh aerodynamic prediction and solver calibration.

I am a seasoned Electrical Engineer with over a decade of expertise in firmware and hardware, and highly specific power electronics development. My state-of-the-art electronics lab is equipped with high end oscilloscopes, spectrum analyzer for EMC pre-compliance testing, signal generators, precision instrumentation, reflow ovens, rework tools and specific tools used for motor drive test and characterization. I specialize in embedded systems, C programming, and power electronics, having successfully delivered and deployed dozens of products. As a world-class KiCad user, my work has been featured on the official KiCad website. I excel in transforming ideas into hardware prototypes and have managed firmware development and production with assembly partners in China. My experience spans developing state-of-the-art field-oriented control drive units, military development programs, wireless ECG devices, and ultra-low-power energy harvesting sensors. As the lead hardware developer of the Axiom Motor Controller and founder of PALTA TECH S.A., EV Power Designs Inc, and Innobattery S.A., I bring innovative solutions to complex challenges. Awards and recognitions include the Top 10 MIT TR35 Innovators Award from Argentina and Uruguay, being the largest contributor to the VESC platform after Benjamin Vedder, a Hackaday Prize 2019 Finalist, and the Best Production Award with the Axiom Motor Controller. I also secured 1st prize in the 2020 PCBway PCB design contest. A Linux powerhouse is my daily driver, and I use KiCad for electronics design, FreeCAD for mechanical integration and FEA, Google Docs for collaborative documentation and Git for version control, ensuring cost-effective solutions without expensive licenses. Our lab favorites include Saleae, Rohde&Schwarz, PEM and Fluke tools.

Senior CFD and multiphysics simulation expert with over 30 years of experience combining scientific research and industrial software development. Spent more than two decades in oceanographic CFD and multiphysics modeling, developing strong capabilities in model innovation, verification, and large-scale numerical simulation, with dozens of co-authored peer-reviewed publications. In recent years, transitioned to independent commercial development, delivering remote CFD- and FEM-based software projects across domains. Experienced in applying CFD both directly and indirectly to complex application scenarios, including HemoDyn, a prototype framework integrating hemodynamic CFD with machine learning to support clinical effect assessment and reduce experimental and clinical sample demands. Strong focus on AI-assisted engineering workflows. Developed BSMesher, an industrial-grade meshing tool, from scratch within four months by effectively navigating AI assistants—demonstrating the ability to rapidly deliver high-complexity engineering software by combining physics-based modeling, AI, and efficient execution.

I have 10+ years of experience in: Video editing: - VFX Video editing, motion tracking, green screen replacement, - Rotosoping, Roto-paint, masking, - In video objects/area removal, color change, - Motion graphics, - Explainer videos/animation, - Instructional videos/animation, - Logo animation, Intro - Outro, Reveals, Openings, Titles, Transitions, Lower thirds, - Product rendering and animation, - Kinetic typography, - Hardcoded subtitles/captions, - 2.5D Parallax image effect, etc. 2D/3D: - 2D/3D animation, - 3D modeling, - 3D sculpting, - 3D design, - Vector illustrations, vector tracing, and editing, Rendering: - Interior/Exterior design, - Product render and design, - Product render for Amazon, or other, - CAD models (stl, obj, 3ds, max, blend, dwg, rvt, sldprt, etc. ). - Guaranteed dedication to the project until it's done. - The project delivered on time. - Years of experience have proven to me, that every successful project depends on great communication. Looking forward to work with you!

I build connected hardware products end-to-end — PCB through cloud through mobile app. Clients hire me when they've realized the hard part of a hardware product isn't any single layer — it's the integration. The firmware that talks to the sensor that talks to the cloud that trains the model that deploys back to the device that pushes to the mobile app. I've personally built and shipped every one of those layers, which means I debug at the seams where specialists get stuck. I do my best work in three domains: - Industrial and commercial IoT — factory automation, predictive maintenance, quality control, sensor networks, robotics, and high-reliability data acquisition. - Consumer products — smart home systems, connected gadgets, wearables, and companion mobile apps. Consumer hardware lives or dies on polish: enclosure fit, app UX, time-to-pairing. I design with that in mind from day one. - Medical devices — sensor-based monitoring, data acquisition, and connected health hardware. I build to documentation and traceability standards that support regulatory pathways, working alongside your QA/RA lead on the formal side. My stack covers the full product: - Electronics — custom PCB design in KiCad, in-house pick-and-place and debug bench, deep ESP32 experience across the peripheral stack (I2C, SPI, UART, CAN, RMT, ADC, PWM, touch, camera) plus BLE, Wi-Fi, LoRa, and cellular. - Mechanical — enclosures, mounts, and structural parts in FreeCAD, with in-house FDM and SLA 3D printing and laser cutting for rapid iteration. - Firmware — embedded C/C++ and ESP-IDF, real-time control, sensor fusion, OTA updates, robust field deployment. - Cloud on AWS — IoT Core, device fleets and provisioning, data pipelines, serverless backends, secure MQTT, time-series storage. - Machine learning — predictive maintenance, anomaly detection, computer vision for quality control and health monitoring. Training pipelines plus optimized deployment to edge or cloud. - Mobile apps — companion apps for device control, commissioning, monitoring, and end-user experience. - CI/CD and Linux infrastructure — full deployment stacks for firmware, cloud, and ML. What ships is what was tested. I default to KiCad, FreeCAD, Linux, and open standards. You own your files and can work with any vendor, any shop, any future engineer. No one holds your design hostage behind a license renewal. For industrial and medical products maintained for a decade or more, this isn't aesthetic — it's risk management. I'm a good fit if: - You need one person who can own the whole system - You have a stalled prototype with problems at the integration seams - You value traceable, vendor-independent deliverables I'm not the right fit if: - You need pure-software work with no hardware - You require a proprietary tool chain like Altium or SolidWorks as a hard constraint - You're shopping on price — I'm priced for full-stack ownership Send a short brief of what you're building and I'll tell you within a day whether it's a fit and roughly what the scope looks like.

Hello, my name is Sait Yavuç and I am a senior Mechanical Engineering student at Istanbul Technical University. Throughout my education I have gained strong experience in mechanical design, CAD modeling, and engineering analysis. I work mostly with SolidWorks and FreeCAD, creating both simple parts and more complex assemblies. I am also confident in preparing technical drawings with proper dimensions, tolerances, and clear presentation so that they are ready for production or academic use. In addition to design work, I have knowledge in rendering and visualization, which allows me to present 3D models in a realistic and professional way. I also focus on engineering calculations and reports, such as mechanics, thermodynamics, and fluid systems. This combination of design and analysis helps me to deliver results that are both visually clear and technically reliable. I have internship experience in CNC machining and manufacturing, where I became familiar with how designs are applied in real production environments. This background allows me to pay attention not only to how a design looks but also to how practical and functional it will be. My main goal is to provide high-quality and accurate work that fits the client’s requirements. I believe in clear communication, attention to detail, and timely delivery. If you need CAD modeling, technical drawings, rendering, or engineering calculations, I will be glad to support your project and bring your ideas into reality.

Experienced software engineer with focus in 3D data. I worked on complex problems involving 3D data and geometric techniques. I am interested into related projects and I have part-time availability.