I build the automations that kill your team's busywork — leads that route themselves, data that stops getting copied between apps, follow-ups that just happen.
I'm an automation engineer. I wire your CRM, forms, spreadsheets, and AI into the tools you already run — using n8n, Make, GoHighLevel, Zapier, and the Claude and OpenAI APIs — so the manual steps disappear.
A few things I've built:
- An AI agent that texts a client about messy QuickBooks transactions and updates the books straight from their reply.
- A voice AI agent for an HVAC company across 6 markets that calls new leads in seconds, gives an estimate, and sends a PDF bid by text and email.
- Stage-based GoHighLevel pipelines with the SMS and email follow-ups firing on their own.
- A full custom CRM with AI lead routing and Twilio messaging for a sales team.
Here's what makes me different: my day job is rocket engineering. So your automation gets built the way flight hardware does — documented, tested, and hard to break — not a brittle Zap that falls over the first time something weird comes through.
I'm a good fit if you're drowning in manual steps, duct-taping tools that don't talk to each other, or you want AI actually wired into your operations instead of just talked about.
Send me a message with whatever's eating your team's time, and I'll tell you straight whether it's worth automating.
ANSYS
Automation
CRM Automation
Task Automation
AI Model Integration
Make.com
API Integration
Business Process Automation
Python
FastAPI
Claude
RESTful API
Zapier
ChatGPT API
AI Agent Development
AI App Development
Twilio
CFD Analysis
COMSOL Multiphysics
OpenFOAM
Jaime S.
Carrollton, Texas
$200/hr
5.0
14 jobs
I bridge the gap between rigorous engineering physics and fast-paced product development.
As a PhD Mechanical Engineer and startup founder, I offer a rare combination of deep theoretical knowledge and practical, hands-on building experience. I don't just design parts in CAD. I engineer complete systems by handling the mechanical design, optical integration, thermal analysis, and the Python code that makes it all run.
Whether you need to design a rugged sensor enclosure, automate a testing setup, or model a complex physical system, I bring the "Founder’s Mindset" to your project. I prioritize robust, manufacturable solutions that fit your timeline and budget.
My Multi-Disciplinary Expertise:
1. Mechanical Engineering & DFM I take concepts from napkin sketches to mass production. My designs are built for the real world, not just the computer screen.
Tools: Expert in SolidWorks and Fusion 360.
Capabilities: Design for Manufacturing (CNC, Injection Molding, 3D Printing), GD&T, and complex assembly management.
Experience: Engineered high-pressure sensor housings (10,000 psi / 250°C) and solar concentrator modules that survive outdoor elements for 20+ years.
2. Optomechanics & Precision Instrumentation: If your product involves light, lasers, or sensors, I am the specialist you need. I understand how mechanical stress affects optical performance.
Experience: Designed and built a sub-micron alignment workstation for fiber-to-chip attachment using high-power CO2 lasers.
R&D: Developed novel photonic sensors (published in Seismological Research Letters and Applied Optics), proving my ability to develop and handle extremely sensitive instrumentation.
3. Engineering Computation (Python & FEA) I use code and simulations to validate hardware. I rely on calculation rather than guesswork.
Simulation: Advanced Finite Element Analysis (ANSYS/COMSOL) for thermal, structural, ray/wave optics and multiphysics problems.
Python: Proficient in NumPy, SciPy, and Pandas for data analysis and physics-based modeling.
Automation: I build custom GUIs (Tkinter) to interface with hardware and automate data acquisition.
Why Clients Trust Me:
I have built my own company: As a founder in the renewable energy sector, I treat your capital with the same respect I treat my own. I focus on viable, scalable engineering.
I solve the "Hard" problems: I specialize in projects where standard engineering isn't enough, such as those involving extreme temperatures, high pressures, and sub-micron tolerances.
If you need a partner who can see the whole picture, from the mechanical system to the physics inside, click "Invite to Job" and let’s discuss your project.
ANSYS
Finite Element Analysis
COMSOL Multiphysics
Optics
Structural Dynamics
Project Management
Electromagnetic Simulation Software
Engineering Modeling Software
Research & Development
Mechanical Engineering
Python
CFD Analysis
Modeling
Numerical Analysis
Control Engineering
Shailesh G.
Austin, Texas
$205/hr
5.0
37 jobs
I have 25 years of experience in applying physics-based methods (such as CFD, FEA, heat transfer, turbulence, mass transfer, bio-reactions, and chemistry), hand calculations, testing techniques, and statistical analysis across diverse industries, including aerospace, medical, semiconductor, apparel, footwear, gloves, automotive, and chemical processing. My expertise spans from concept development to prototype creation and commercial launch, with a focus on scaling processes and equipment from prototype to commercial scale. Many of these product developments are supported and validated by tests conducted in a cost-effective, technically balanced manner. I address significant uncertainties by making well-considered assumptions and approximations, often solving simplified 0D, 1D, 2D, or simplified 3D models with enough physics to guide product development, rather than solving the most complex real 3D geometries. I have worked with tools such as ANSYS Fluent, CFX, STAR-CCM+, CFD-ACE+, TAITherm, OpenFOAM, and ANSYS Mechanical for various applications.
Key Contributions:
• Collaborated with test and design engineers in developing next-generation engines for launch vehicles and spacecraft, including systems such as thrust chamber cooling, fuel/oxidizer pressurization, fuel tank filling and emptying, manifolds, injectors, diffusers, flow straighteners, and cavity purge analysis, using STAR-CCM+ and ANSYS Fluent.
• Supported test campaigns, integrating CFD analysis with hotfire test data and ensuring the digital twin remained up to date.
• Led component, subsystem, and product-level simulations to support design, development, verification, and validation efforts, ensuring performance in intended environments and conditions.
• Developed thermal analysis models using ANSYS, STAR-CCM+, ACE+, and MSC Patran at various levels, including components, multichip modules, circuit card assemblies, subsystems, and systems, resulting in low thermal-risk hardware.
• Created test plans and procedures that led to successful execution and results.
• Identified and tested advanced thermal interface materials (TIMs).
• Performed thermal analysis model correlations to refine predictions based on test data, enhancing understanding and accuracy.
• Worked closely with customers and engineering teams to define the necessary testing to validate thermal analyses and ensure compliance with requirements.
• Applied hand calculations and ANSYS Fluent thermal analysis to guide the design of evaporators and cooling plates.
• Optimized advanced IC designs to ensure optimal thermal performance.
• Utilized aerogel-based insulation composites to mitigate hotspots and meet touch safety requirements.
• Conducted thermal analysis for fire testing of building construction and materials.
ANSYS
Product Development
CFD Analysis
Mechanical Engineering
3D Modeling
Human-Centered Design
CAD
Product Design
Computational Fluid Dynamics
Finite Element Analysis
Scientific Computation
Mathematical Modeling
Chemical Engineering
Vitaly S.
Fairfield, California
$40/hr
5.0
8 jobs
Hello,
Let me introduce myself. I am a physics engineer, materials science, and I have more than 15 years of experience as a design engineer.
I have extensive experience in detailed design and modeling of tools and equipment, tolerance, and dimensional analysis. Very proficient in CAD, specifically in SolidWorks (owner of a Premium and Simulation Pro), Fusion 360 experience as well. Selection of materials, production processes, and suppliers. Calculation of cost and production time.
I have experience designing finished products and tools/molds for the mold injection process, systems for high vacuum/ high pressure, inert, and dangerous gases, reverse engineering, CFD, and FEA analysis.
Customer-oriented - I try to be neutral and objective, I fully listen to the person's comments and reflect on my work at the same time, with this fresh new perspective coming from this person's viewpoint. I respect they took the time to give me feedback and value their opinion.
My job as a designer is to identify and find valuable solutions that will better serve customers.
Sincerely,
Vitaly
Mechanical Engineering
CFD Analysis
SolidWorks
Design for Manufacturing
Computational Fluid Dynamics
Energy
Analytical Presentation
Design Analysis
Bill of Materials
Material Selection
Sebastian B.
Miami, Florida
$85/hr
4.6
4 jobs
I bridge the gap between concept and commercial reality.
As a US-based Mechanical Engineer with 6+ years of experience, I engineer shop-ready products that work in the real world and in simulation. I help entrepreneurs and US manufacturers eliminate costly fabrication errors, optimize production cycles, and navigate the complex path from napkin sketch to mass production.
Why Clients Choose Me Over Offshore Alternatives:
US-Based & Compliant: I operate in your time zone and am fully qualified for IP-sensitive projects. Your intellectual property never leaves US jurisdiction, ensuring maximum security.
⚙️ Shop-Floor Fluency: I speak the language of machinists and mold makers. My designs are built with Design for Manufacturing (DFM) at the forefront, ensuring you don't pay for features that can't be machined.
📉 Capital Efficiency: I use advanced simulation (FEA & CFD) to validate designs virtually, reducing the need for expensive physical prototype iterations.
My Core Engineering Solutions:
1. Design for Manufacturing (DFM) & Assembly
The Goal: Reduce unit cost and tooling complexity.
The Process: Rigorous analysis of wall thickness, draft angles, and tolerances (GD&T) for Injection Molding, CNC, and Sheet Metal. I deliver files that machine shops accept without questions.
2. Concept-to-Reality Product Design
The Goal: Transform vague ideas into functional products.
The Process: Full-lifecycle development using Fusion 360. From complex mechanism design to aesthetic enclosures, I create parametric, editable assemblies ready for future iteration.
3. Risk Mitigation via Simulation (FEA)
The Goal: Prevent field failures.
The Process: Structural Optimization & Analysis to predict failure points before cutting a single piece of material.
What My Clients Say:
"Sebastian’s attention to detail... reduced total manufacturing time by hours; this project has truly changed my life." - LOBA Corporation
"The simulation insights were invaluable, and the detailed presentation made everything clear." - DBS Studio
Ready to engineer a product that lasts? Click the green "Invite" button to discuss your project requirements. I typically reply within 60 minutes during US business hours.
CAD Conversion
CAD
Modeling
Mechanical Engineering
Engineering Simulation
Product Design
Systems Engineering
Prototyping
Automotive
Automotive Design
Automotive Engineering
CFD Analysis
Finite Element Analysis
Design for Manufacturing
James G.
San Antonio, Texas
$80/hr
5.0
1 jobs
13 years of experience in all aspects of RF design and high-speed PCB development, including antennas, RF front-end circuits, RFID systems, BLE/Wi-Fi/LoRa products, RF components, impedance matching, filters, amplifiers, RF switches, baluns, and antenna tuning. Much of my work has involved RF PCB design, wireless product development, and high-speed digital hardware. This background also extends to RFID readers, transponder-based systems, and FPGA-related hardware projects.
I have strong experience in RF and antenna simulation using tools such as HFSS, CST Studio Suite, and Ansys tools for antenna design, RF matching, radiation pattern analysis, impedance optimization, RF front-end validation, and wireless performance improvement.
I have strong experience in high-speed PCB design, including multilayer board layout, controlled impedance routing, differential pairs, signal integrity, power integrity, EMI/ESD protection, RF grounding, shielding, and manufacturability. I have worked on FPGA-related projects involving Xilinx, Zynq, Artix-7 FPGA platforms, including data acquisition, signal processing, timing-sensitive interfaces, and high-speed digital board design.
My embedded hardware experience includes the setup, integration, and debugging of microcontrollers and embedded platforms such as STM32, ESP32, ESP32-S3, Nordic nRF52832/nRF52840, Raspberry Pi, Arduino, and embedded Linux-based systems.
I am familiar with RF and wireless ICs/modules including Semtech SX12 series LoRa devices, Nordic BLE chips, ESP32 wireless modules, Quectel LTE/GPS modules, u-blox GPS modules, RFID reader modules, RF filters, LNAs, PAs, RF switches, baluns, and matching networks.
For PCB design, I use Altium Designer, KiCad, EasyEDA, Eagle, and OrCAD
I also have experience with enclosure design for RF and embedded products, including plastic and metal enclosures, antenna placement, RF keepout areas, mechanical fit checks, connector positioning, thermal considerations, waterproofing concepts, mounting features, and PCB-to-enclosure integration. I understand that enclosure design can directly affect RF performance, antenna efficiency, heat dissipation, usability, and manufacturability, so I always consider the mechanical structure together with the electronics.
I have worked for years on IoT devices, wireless sensors, RFID products, antenna-integrated PCB designs, FPGA boards, digital electronics, embedded controllers, data acquisition systems, and prototype-to-production hardware. System engineering and integration have been important parts of many of my projects, especially where RF, firmware, FPGA, PCB design, and enclosure design must work together reliably.
My main strength is not only designing a schematic or PCB, but building complete hardware that works reliably in the real world. I always consider RF performance, signal integrity, grounding, shielding, power stability, EMI/ESD protection, enclosure integration, manufacturability, testing, and long-term reliability from the beginning of the design.
STM32
ESP32
Raspberry Pi
Altium Designer
KiCad
WiFi
LoRa
FPGA
RF Design
Antenna Design
EasyEDA
Internet of Things
Firmware
Prototype
Electrical Engineering
Electronics
Layout Design
Embedded System
SolidWorks
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