I have designed 30+ real-world components used in defence systems, DC fans, and kitchen appliances handling everything from design and simulation to fabrication and testing myself, so you get complete, working hardware solutions from one expert.
I am an RF, PCB, and Embedded Systems Engineer with strong hands-on experience in building complete hardware products. I have worked on real-world RF systems including high-power amplifiers, transmitter-receiver designs, RF filters, and antenna systems for communication and defence-related applications. I specialize in RF design, antenna design and testing, wireless communication, and high-quality PCB design including multilayer boards using Altium Designer and KiCad. I also work on circuit design, analog electronics, RF filters and amplifiers, and embedded systems using STM32, ESP32, and Arduino. I have successfully delivered reliable, tested, and production-ready designs that perform well in real-world conditions.
For large and challenging projects, I collaborate with a trusted team of highly skilled professionals, so we can deliver a complete, fully working product including hardware, software, and mechanical design all in one place.
✅ RF & Microwave Circuit Design
✅ RF System Design (Transmitter & Receiver)
✅ RF Front-End Design
✅ RF Power Amplifier Design (Low, Medium & High Power)
✅ LNA (Low Noise Amplifier) Design
✅ RF Filters Design (Bandpass, Low-pass, High-pass)
✅ Impedance Matching & RF Tuning
✅ Antenna Design (Patch, Monopole, Dipole, Custom)
✅ Antenna Simulation & Optimization
✅ Antenna Testing & Performance Measurement
✅ Wireless Communication System Design
✅ RF Signal Chain Development
✅ Frequency Planning & Spectrum Analysis
✅ PCB Design (Single Layer, Double Layer, Multilayer)
✅ High-Speed PCB Design
✅ RF PCB Layout & Controlled Impedance Design
✅ Schematic Design & Circuit Layout
✅ PCB Design using Altium Designer, KiCad & EasyEDA
✅ Gerber File Generation & Manufacturing Support
✅ Design for Manufacturing (DFM) & Assembly (DFA)
✅ PCB Debugging & Optimization
✅ Electronic Circuit Design
✅ Analog Circuit Design
✅ Amplifiers & Signal Conditioning Circuits
✅ Sensor Interface Circuit Design
✅ Power Electronics Circuit Design
✅ Hardware Troubleshooting & Debugging
✅ Embedded Systems Design
✅ Embedded Hardware Development
✅ Microcontroller-Based System Design
✅ Microcontroller Programming (STM32, ESP32, Arduino, AVR)
✅ Embedded C & C++ Development
✅ Firmware Development
✅ IoT Device Development (WiFi, LoRa, ESP32)
✅ Raspberry Pi-Based Projects
✅ FPGA Design & Development
✅ Verilog / VHDL Based Design
✅ Digital System Design on FPGA
✅ Simulation & Timing Analysis
✅ FPGA Prototyping & Testing
✅ Electromagnetic Simulation (HFSS, CST, ADS)
✅ Circuit Simulation (LTspice, PSPICE, MATLAB)
✅ EM & RF Co-Simulation
✅ Signal Integrity & EMI/EMC Analysis
✅ Hardware Prototyping
✅ Product Development from Concept to Prototype
✅ Functional Testing & Validation
✅ Performance Measurement & Optimization
✅ Test Results Analysis & Reporting
✅ Technical Writing (Engineering Reports & Documentation)
✅ Research Paper Writing (IEEE Format)
✅ Project Documentation & Reports
✅ RF & Electronics Content Writing
✅ Complete Product Design (Hardware + Embedded + RF + FPGA)
✅ Prototype to Production Support
✅ Real-World Testing & Field Validation
✅ Engineering Simulation & Optimization
Eagle
RF Design
Antenna Design
Antenna Testing
PCB Design
Multilayer PCB
Altium Designer
KiCad
Embedded System
FPGA
STM32
ESP32
Hardware Design
Electromagnetic Simulation Software
RFID
Electrical Engineering
Digital Electronics
Arduino
Huma M.
Rawalpindi, Pakistan
$6/hr
5.0
4 jobs
Hello! I'm a highly experienced Medical Billing and Dental billing Specialist with over 6 years of expertise in providing top-notch RCM solutions for US-based healthcare billing companies. Proven track record in handling medium to large healthcare clients, both in-network and out-of-network billing. I help healthcare providers, clinics, and billing companies streamline their billing process, reduce claim denials, and maximize revenue collections efficiently.
My expertise spans across all key areas of medical billing, including:
✔️ Insurance Eligibility Verification
✔️ Patient Demographics & Charge Entry
✔️ CPT/ICD-10 Coding Review
✔️ Claim Submission (EDI & Paper Claims)
✔️ Payment Posting (ERA & Manual)
✔️ Accounts Receivable (AR) Follow-Up
✔️ Denial Management & Appeals
✔️ Patient Billing & Collections
✔️ Reporting & Analytics
Practice Management Responsibilities:
* Facilitated new practice setup for providers
* Implemented strategies to improve practice revenue
* Oversaw all aspects of medical billing, coding, and compliance coordination
* Conducted insurance audits
* Analyzed financial data to drive decision-making
* Provided training to employees
* Nurtured client relationships
Billing:
* Verified eligibility and benefit coverage
* Handled prior authorization/referral processes
* Scheduled patient appointments
* Managed patient demographics and charge entry
* Submitted insurance claims (primary, secondary, tertiary)
* Analyzed Accounts Receivable and conducted collections
* Followed up on denials and managed denial management
* Initiated appeals on denials through calls, written communication, and fax for reprocessing
* Prepared monthly and annual custom reports
List of Billing Software and EHR Experience:
* Intergy
* MicroMD
* DME Works
* Kareo
|• Dentritic
* Open Dental
* Eagle
* Collaborate MD
* RXNT
* Simple Practice
* Therapy Notes
* Office Ally
* NextGEN
* Nextech
* Claim MD
* Advance MD
* ECW
* Insync
* eThena
* Raintree
* Care cloud
* SPECIALTIES:
DME, Mental health, Psychologist, Psychiatrist, Psychotherapist. Podiatry, Pain Management, Dental billing, internal medicine, Family Medicine surgery, Dermatology, Anesthesiology, Physical Medicine & Rehabilitation, chiropractor, Dental, Wound care
Medical Billing
ICD Coding
Insurance Claim Submission
Data Entry
Administrative Support
Microsoft Excel
Accounts Receivable
Insurance Verification
VOB
HIPAA
Customer Service
Email Communication
Accuracy Verification
Google Sheets
Wishal Q.
Islamabad, Pakistan
$50/hr
5.0
61 jobs
PCB Designer and Embedded Hardware Engineer specializing in ESP32, STM32, and IoT product development. I design manufacturable PCBs using Altium, KiCad, and EasyEDA with full JLCPCB production support.
I help clients turn circuit ideas into reliable, production ready hardware including schematic design, PCB layout, prototyping, and debugging.
What I do
• PCB design for ESP32, STM32, Arduino based systems
• Schematic design and multilayer PCB layout in Altium and KiCad
• IoT hardware design with sensors, power management, and connectivity
• Firmware support for STM32 and ESP32 (Arduino framework, HAL basics)
• Design for manufacturing and JLCPCB ready Gerbers
• Hardware debugging and prototype improvement
Tools I use
Altium Designer, KiCad, EasyEDA, Fusion 360, SolidWorks, AutoCAD
Why clients hire me
I focus on practical engineering, not just design files. I ensure your PCB works in real hardware, is easy to manufacture, and is optimized for cost and reliability.
If you are building an IoT product, embedded system, or custom PCB, I can help you go from concept to working prototype efficiently.
PCB Design
Arduino
Printed Circuit Board
ESP32
EasyEDA
KiCad
Multilayer PCB
CAD Software
Arduino IDE
Prototype Design
Microcontroller Programming
Microcontroller Design
Microcontroller
Altium Designer
Embedded System
Zunuran N.
Sahiwal, Pakistan
$40/hr
5.0
132 jobs
I help startups and companies transform ideas into reliable, production-ready electronic hardware. With 6+ years of experience, I specialize in schematic capture, PCB layout, embedded hardware development, and Industrial IoT solutions for commercial and industrial applications.
My expertise covers everything from simple 2-layer boards to complex multilayer and HDI PCBs, always focusing on signal integrity, manufacturability, reliability, and cost-effective production.
Core Expertise
• Schematic Capture & Electronics Hardware Development
• PCB Layout (2-layer, Multilayer & HDI)
• Embedded Hardware Development
• Industrial IoT Devices & Sensor Nodes
• Hardware Debugging & PCB Optimization
• BOM Creation & Cost Optimization (JLCPCB/LCSC Ready)
• Prototype Validation & Manufacturing Support
Technical Experience
• ESP32, STM32, Nordic nRF52 Series
• LTE / NB-IoT Modules (Quectel, Sequans, u-blox)
• RS485, Modbus & CAN Bus Communication
• Battery Management Systems (BMS)
• Low-Power Battery & Solar-Powered Electronics
• Buck, Boost & LDO Power Supplies
• RF Layout & Antenna Integration
Professional Highlights
✔ Top Rated Plus Freelancer (Top 3% on Upwork)
✔ 100% Job Success Score
✔ 120+ Successfully Completed Projects
✔ $100K+ Earnings on Upwork
✔ 98% 5-Star Client Reviews
Development Tools
• Altium Designer
• KiCad
• EasyEDA (Standard & Pro)
What You Can Expect
✔ Production-ready PCB layouts
✔ Clean, organized schematics
✔ Complete manufacturing files (Gerber, BOM & Pick-and-Place)
✔ DFM-focused hardware for smooth manufacturing
✔ Clear communication and dependable delivery throughout the project
Whether you're developing a new electronic product, upgrading existing hardware, or preparing a prototype for manufacturing, I can help turn your concept into reliable, production-ready hardware.
Hardware Prototyping
Electrical Engineering
Internet of Things
PCB Design
Schematic
Microcontroller
KiCad
RF Design
Altium Designer
Product Development
Wearable Technology
Hardware Troubleshooting
Electronics
ESP32
STM32
nRF52
Raspberry Pi
EasyEDA
Electronic Circuit Design
Multilayer PCB
Hifza A.
Bahawalpur, Pakistan
$5/hr
4.9
14 jobs
𝗛𝗶𝗳𝘇𝗮 𝗔𝗹𝗶: 𝐄𝐱𝐩𝐞𝐫𝐭 𝐋𝐞𝐚𝐝 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐨𝐧 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭, 𝗪𝗲𝗯 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵𝗲𝗿 𝐚𝐧𝐝 𝐃𝐚𝐭𝐚 𝐄𝐧𝐭𝐫𝐲 𝐎𝐩𝐞𝐫𝐚𝐭𝐨𝐫
🚀 Top Rated - Top 100% of talent on Upwork
⏱️ 600+ hours on Upwork
🌟 3 Years of Experience
🌟 14 High Client Satisfaction and Long-Term Partnerships
🌟 100% Job Success
🌟 $3K+ Earnings
________________________________________
Are you looking for 𝗮𝗰𝗰𝘂𝗿𝗮𝘁𝗲, 𝘃𝗲𝗿𝗶𝗳𝗶𝗲𝗱, 𝗮𝗻𝗱 𝗵𝗶𝗴𝗵-𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗹𝗲𝗮𝗱𝘀 that actually convert into real clients?
I help businesses generate 𝘁𝗮𝗿𝗴𝗲𝘁𝗲𝗱 𝗹𝗲𝗮𝗱𝘀, build clean databases, and find the right decision-makers, so you can focus on closing deals.
Hi there! I'm 𝗛𝗶𝗳𝘇𝗮, a dedicated Lead Generation & Data Research Specialist with 3+ years of agency experience, helping businesses grow through data-driven prospecting and research.
I specialize in finding high-quality, verified leads using advanced tools and manual research techniques to ensure accuracy, relevance, and low bounce rates.
🎯 𝗖𝗢𝗥𝗘 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦
✔ B2B & B2C Lead Generation
✔ LinkedIn Lead Generation (Sales Navigator Advanced Search)
✔ Online Research
✔ Email List Building & Verification
✔ Prospect List Building & Data Enrichment
✔ Web Research & Market Research
✔ CRM Data Entry & Management (HubSpot, Salesforce, etc.)
✔ Data Mining, Scraping & Extraction
✔ Contact List Cleanup & Accuracy Verification
✔ LinkedIn Outreach & Prospecting
✔ US Real Estate Lead Generation & Skip Tracing
✔ Property Owners Research
🛠️ 𝗧𝗢𝗢𝗟𝗦 & 𝗧𝗘𝗖𝗛𝗡𝗜𝗤𝗨𝗘𝗦
I use premium tools + manual research to ensure top-quality data:
✔ LinkedIn Sales Navigator
✔ Apollo | Hunter | Snovio
✔ RocketReach | Clearbit | Lusha
✔ NeverBounce | ZeroBounce | MillionVerifier
✔ Crunchbase | Google Boolean Search
✔ PropertyRadar | PropStream & more
📊 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗪𝗜𝗟𝗟 𝗚𝗘𝗧
✔ Verified Email Addresses (low bounce rate)
✔ Decision-Maker Contacts (CEO, Founder, etc.)
✔ Verified Property & LLC Owners Contacts
✔ 100% Targeted & Niche-Based Leads
✔ Clean & Organized Data (No duplicates)
✔ Fast Delivery & Clear Communication
⭐ 𝗪𝗛𝗬 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘?
✔ High Accuracy & Attention to Detail
✔ 100% Manual + Tool-Based Research
✔ Quick Response & Reliable Communication
✔ Long-Term Collaboration Mindset
✔ Client Satisfaction is My Priority
If you’re looking for quality leads that bring real results, feel free to message me.
I’m also happy to provide a quick sample before we start 😊
B2B Lead Generation | LinkedIn Lead Generation | Email List Building | Contact List Building | Data Entry | Web Research | Online Research | Data Mining | Prospect List | LinkedIn Sales Navigator | Email Verification | CRM Data Entry | Skip Tracing | Real Estate Leads | Comps (CMA), ARV calculations, rental market analysis | Title search, chain-of-title, owner verification | Zoning, subdivision, land use & GIS research Vacant land, mobile home park & commercial land research | Foreclosure, tax deed, auction & REO property research | Distressed, absentee, pre-foreclosure & probate lists| Tax delinquent, code violations, liens, judgments
Data Entry
Lead Generation
List Building
Data Mining
Market Research
Real Estate
Contact List
Research Methods
Administrative Support
Prospect List
Virtual Assistance
Google Docs
Company Research
LinkedIn Lead Generation
Accuracy Verification
Data Scraping
Microsoft Excel
Data Extraction
Online Research
Real Estate Lead Generation
Muhammad U.
Lahore, Pakistan
$30/hr
4.9
8 jobs
I'm an experienced Hardware Design Engineer with a strong background in schematic capture, high speed PCB layout, signal integrity, signal integrity, circuit simulation, and complete hardware development. Over the years I've experienced on a wide range of projects on hardware and PCB design, from power supplies and compact wearables to smart IoT devices, GPS trackers, industrial controllers, dispensers and embedded systems. I focus on designs that are not only functional, but also reliable, manufacturable, and ready for large-scale production.
What I Deliver
- Schematic capture and detailed component selection for any application
- PCB layout: single-layer, double-layer, multi-layer, high-speed, and compact form factors
- Power electronics: AC/DC and DC/DC converters, battery-powered and low-power systems
- IoT and portable device design with signal integrity and low-power focus
- Embedded hardware: MCU, peripherals and communication interfaces(I2C, SPI, UART, CAN, USB)
- EMI/EMC-aware design, thermal analysis, and signal integrity review
- Circuit simulation, schematic-level debugging, and design optimization
- Prototyping support and design review
- Production-ready files: Gerber, BOM, pick-and-place and full documentation
Tools & Software
- Altium Designer
- KiCad
- EasyEDA
- Proteus
- MATLAB / Simulink
- Additional EDA and testing tools used across industry-standard workflows
Whether you need a custom circuit board, a clean schematic, an optimized power solution, or a complete electronic product from scratch, I can help bring your concept to life. Let's work together to create reliable, high-quality hardware that's built to last.
Circuit Design
PCB Design
Altium Designer
KiCad
EasyEDA
Power Electronics
Simulation Software
Electronics
Electronic Design
Electrical Engineering
Electrical Design
Circuit Diagram
Hardware Design
Hardware Prototyping
Electromagnetic Simulation Software
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Summa Linguae
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