Hire the Best Digital Signal Processing Specialists

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Gilberto G.

Merida, Venezuela

$60/hr
5.0
98 jobs

I am BS in Electrical Engineering graduated with honors. During my university career I specialized in the design and development of several tools for data processing, feature & pattern extraction, time-frequency analysis, signal convolution (see my portfolio), image classification, linear & nonlinear filtering of time sequences (1D), images (2D), hyper & multi spectral images (3D) as well as the implementation of genetic algorithms for the optimization of Objective Functions subject to linear and nonlinear constraints. In my degree project I implemented a land cover classifier for satellite images (hyper spectrals) using Sparse Signal Representation as an artificial intelligence method positioned in the state-of-the-art (see my portfolio). I currently have more than 3 years of experience in applications that enable extreme performance & accuracy improvements in Machine Learning and in the powerful field of Data Science. In particular, I have heavy expertise implementing models based on classical techniques such as: Binomial and Generalized Logistic Regression, Robust Regression, Neural Networks, Vector Support Machines, K-Nearest Neighbor as well as innovative techniques positioned in the state-of-the-art as Sparse Signal Representation, all of them in applications of Image classification, Denoising, Super Resolution, among others. I have heavy skills in Python and MATLAB (with experience in R as well) so I have used these powerful programming languages for the quickly, reliable and efficient development of my projects. I also carried out 3 masters courses in Biomedical Engineering of Mathematical Methods and Statistics applied to the Engineering, with which I have solid bases to analyze and infer well on the results obtained. Feel free to get in touch with me if you need to solve any problem related to: - Machine learning - Data science - Genetic Algorithms - Signal & Image Processing - Biomedical Image processing

  • Digital Signal Processing
  • MATLAB
  • Python
  • Computer Vision
  • NumPy
  • Model Optimization
  • Machine Learning
  • Data Science
  • Electrical Engineering
  • Image Processing
  • Algorithm Development
  • Genetic Algorithm
  • Predictive Analytics
  • Python Script
  • MATLAB Script
Alejo G.

Buenos Aires, Argentina

$45/hr
4.8
52 jobs

I'm an Upwork member with 100% Job Success and Top Rated Plus Python and C++ programmer with extensive experience in sound, image and video processing. I have been working for a long time with the OpenCV, GStreamer and NVIDIA Deepstream SDK libraries, using GPU hardware with CUDA and other HPC libraries. My work experience includes professional video players & editors, transcoders (using different types of inputs, such Blackmagic Decklink capture cards and all the video formats: HLS, SRT, fMP4, WebRTC), DSP systems, JUCE framework, object detection and tracking, Deep Learning systems (YOLO, Pytorch, Tensorflow, TensorRT), AI hardware like NVIDIA Jetson Orin and Raspberry Pi devices. I have also experience in ultrasound signal processing. In ML and LLM models I'm working training Reinforcing Learning PPO models and LORA fine tuning methods on AI. Also I have experience with TTS and Speech Recognition systems using models like Whisper, WhisperX and PiperTTS. In Hardware and PCB design I have good experience in Arduino and IDF Espressif systems, based on ESP32, ESP32s2 and ESP32s3 chips with standard thermal cameras and ESP32 Drones, using MQTT messaging and SSL certificates (WiFi, Bluetooth and external sensors). I can design and build a custom PCB board. I like to choose projects that interest me and that match my skills and give me a challenge or bring something new.

  • Deep Learning
  • Computer Vision
  • C++
  • Python
  • OpenCV
  • Image Processing
  • GStreamer
  • FFmpeg
  • CUDA
  • GPS
  • STM32
  • Microsoft Visual C++
  • Video Stream
  • Raspberry Pi
  • Linux
  • C
Myles L.

San Diego, California

$80/hr
4.9
10 jobs

I’m a Professional Engineer of California in Electronics, Communications, and Controls, experienced in RF, embedded systems, and automated test development for hardware-focused teams. I am educated on the West Coast in Electrical Engineering with an emphasis on wireless technologies and am working toward a Graduate degree in Signal and Image Processing. Whether you need help with prototyping, validation, troubleshooting, or building reliable engineering workflows, I can help. - Experience with RF systems, embedded hardware, Python tools, and lab/test automation - Loves to work on long-lasting custom wearable tech! - Support from concept development through integration, validation, and production handoff - Strong communication, documentation, and cross-functional collaboration

  • Digital Signal Processing
  • Electrical Engineering
  • Python
  • RF Microwave Design
  • Automated Testing
  • Automated Monitoring
  • Electronic Design
  • Embedded System
  • Medical Device
  • Printed Circuit Board
Tewodros Bewuket A.

Novate Milanese, Italy

$10/hr
5.0
1 jobs

I am a full-stack AI Engineer specializing in Computer Vision, Image Processing, and Signal Analysis, with a strong background in Electrical Communications Engineering and hands-on experience building real-world AI systems. Currently pursuing a Master’s in Artificial Intelligence for Science and Technology in Milan, I focus on developing intelligent systems for image and signal understanding, particularly in medical imaging and scientific applications. 💡 What I can help you with: * Image processing (filtering, segmentation, feature extraction) * Computer vision (object detection, bounding boxes, classification) * Signal processing (denoising, transformation, analysis) * Deep learning models (CNNs, PyTorch, TensorFlow) * Data preprocessing and pipeline development * Model deployment (Docker, APIs, scalable systems) 🚀 Projects & Experience: * Built tumor region detection systems using CNNs and bounding box localization * Developed messaging APIs with authentication, logging, and scalable architecture (Docker & Kubernetes) * Experience in backend systems using Django and REST APIs * Developed a mobile-based multi-agent AI system for real-time wound triage and emergency detection using computer vision, LLM reasoning, and geolocation services 🛠 Tools & Technologies: Python, OpenCV, PyTorch, TensorFlow, NumPy, SciPy, Django, Docker, Kubernetes I am passionate about solving real-world problems using AI and delivering clean, scalable, and efficient solutions. Let’s work together to turn your idea into a powerful AI solution.

  • Digital Signal Processing
  • Machine Learning
  • Data Analysis
  • Machine Learning Model
  • Deep Learning
  • PyTorch
  • Python
  • TensorFlow
  • Streamlit
  • Data Structures
  • Image Processing
  • OpenCV
  • API Development
  • Docker
  • Django
Joaquin S.

Montevideo, Uruguay

$60/hr
5.0
39 jobs

Senior audio software developer, passionate about audio, technology, and music. CEO & Co-Foudner of Edge Audio Labs, a company specialized in audio and music software development. My team and I build audio products end to end, including audio plugins, desktop and mobile apps, DSP, AI for audio, cloud backends, embedded systems, licensing, QA, UI/UX, and launch-ready product support. My expertise includes C++, JUCE, Python, PyTorch, ONNX, FastAPI, AWS, Vercel, VST3, AU, AAX, iLok, Audinate Dante, AoIP, and cross-platform development for macOS, Windows, iOS, Android, and embedded environments. We’ve worked on analog emulation, AI vocal synthesis, voice and singing technology, cloud-based audio systems, MIDI and music analysis tools, AI audio analysis, embedded audio hardware, and distributed real-time audio platforms. I also bring real-world experience in live sound, theatre, and studio work, plus a musician’s perspective as a drummer and guitarist. This helps me understand both the technical and creative side of audio products. Former college professor in the Audio Technology Department at ORT University, with strong experience leading teams and turning complex ideas into polished products.

  • Digital Signal Processing
  • Logic Pro
  • Avid Pro Tools
  • Audio Mastering
  • Python
  • Unix Shell
  • Product Development
  • Audio Engineering
  • Audio & Music Software
  • MIDI
  • Music & Sound Design
  • C++
  • Audio Editing
  • C
  • Audio Post Production
Christopher S.

Houston, Texas

$75/hr
4.3
33 jobs

SERVICES OFFERED TO CLIENTS: • Coding projects in MATLAB, Simulink, and other languages • Machine learning and deep learning • Consulting on medical device technologies • Laboratory guidance • Inventing and building new technologies • Refining and revising existing technologies • Spaceflight hardware manufacturing • Intellectual Property, Patent Landscaping, and Defeating Patent Trolls • Writing Grant Proposals and Executing on Proposals MY TECHNICAL SKILLS OVERVIEW: I have extensive hands-on expertise in five broad areas: 1) MATLAB Programming, Coding, and Simulations, 2) Measurements with Sensors, 3) Skills for Transitioning Products from Labs-to-Manufacturing, 4) Intellectual Property and Inventing as a Service, and 5) Success in Business, Soft Skills, Executive Management, and Project Management. PROFESSIONAL OVERVIEW: I am a MATLAB coder, technologist, and professional applied scientist. I am driven to satisfy my clients' goals. I have been granted more than 40 patents in sensors, signal processing, and data-handling algorithms. Some of those inventions have been successfully commercialized within the oil industry. My career includes several years of successful engagements as a client-facing consultant for various industries. My former clients and employers have included NASA, U.S. Department of Defense, U.S. Department of Energy, NV Energy, British Petroleum, Halliburton Energy Services, ExxonMobil, BNSF Railways, Queensland Gas Company, Cardinal Health, Accenture, Methodist Hospital, and other organizations. MY EDUCATIONAL BACKGROUND: • Doctoral degree in physics from Rice University. GPA: 3.8/4.0. • Master’s degree in physics from Rice University. GPA: 3.8/4.0. • Bachelor’s degree in physics from Georgia Tech. GPA: 3.8/4.0. Minor in Economics. MY TEACHING EXPERIENCES. Taught 5 semesters of University freshman physics laboratories. Tutored a U.S. military veteran one-on-one for 2 years. DETAILS OF TECHNICAL SKILLS: 1) Programming, Coding, and Simulations - MATLAB, Simulink, C, Fortran, Python, Assembly, COMSOL, Java, Machine Learning, AI, Deep Learning, Audio and Video Processing, Digital Signal Processing, DSP, Digital Forensics, Image processing, Computer vision, Video enhancements, and Monte Carlo Simulations. 2) Sensors, Radar, Sonar, Lidar, Photonics, Fiber optic, Acoustics, Hydraulics, Nuclear, Fission, Fusion, Thermonuclear Fusion, Nuclear Energy, Radioactive waste, Lasers (free-space, fiber, gas, ion, dye, solid-state), RF and Microwave (VHF to Ku), Spread Spectrum, Communications & Telemetry, Microcontrollers, and Magnetometry, Antenna design, Data Acquisition Hardware & Software, Digital and Analog Circuitry, Spectrum Analyzers, Design of experiments 3) Design, Construction/Build of Scientific Equipment, Hardware Manufacturing, Machine Shop Skills (Using Mills and Lathes), Soldering, Brazing, Plumbing, Vacuum systems 4) Teaching at University level, Private volunteer tutoring of U.S. veteran soldiers, Completed 1-year of MBA coursework at Rice University, Project Management Institute training courses, 4-years experience as a client-facing Management Consulting, Numerous Awards from NASA and other organizations for teamwork & leading teams, Inventing, Success with the TRL process from Product Development, Intellectual property, soft skills, Legal, Organizational psychology, Communications, Conflict resolution, Seed funding, and Sales

  • Digital Signal Processing
  • Physics
  • MATLAB
  • Photonics
  • Machine Learning
  • Remote Sensing
  • Chemical Analysis
  • Electrical Engineering
  • Deep Learning
  • Medical Device
  • Biomedical Engineering

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What does a digital Signal Processing specialist do?

A digital Signal Processing specialist designs and verifies algorithms that extract information from discrete-time signals in time and frequency domains. This role focuses on transforming raw data into usable insights through mathematical modeling and simulation. Specialists build precise logic to filter noise, estimate spectral content, and prepare algorithms for hardware deployment.

  • Design and implement digital filters and transformations to modify signal behavior. You create discrete-time filter models in Simulink to define how systems process input data. These artifacts demonstrate specific filter responses and ensure the system meets performance requirements before physical implementation.
  • Perform spectral analysis to estimate signal frequency content using tools like MATLAB. You apply Fast Fourier Transform methods or dsp.SpectrumEstimator objects to identify dominant frequencies within complex datasets. This analysis reveals hidden patterns in the data and guides further algorithm development.
  • Build and verify DSP models using model-based design workflows in MATLAB and Simulink. You generate test cases with Simulink Design Verifier to validate model behavior and achieve coverage objectives. These verification results prove the algorithm functions correctly under various conditions and supports reliable system integration.
  • Contribute to algorithm-to-hardware workflows for FPGA or ASIC implementations. You map simulation results to hardware constraints and collaborate on design steps that bridge software models and physical chips. This process ensures the final hardware executes the DSP logic accurately and efficiently within resource limits.

How to hire a digital Signal Processing specialist on Upwork

Step 1: Post a job

Define your signal analysis needs clearly to attract qualified candidates. Use the Job Post Generator powered by Uma™, Upwork's Mindful AI to draft a precise description from a few sentences about your project. You can write a new post, update a saved draft, or reuse an existing post to save time.

  • Specify requirements for spectral analysis using FFT or DFT methods to estimate frequency content accurately.
  • List necessary tools such as MATLAB and Simulink for modeling DSP systems and designing digital filters.
  • Clarify if the role involves model-based design workflows for FPGA or ASIC hardware implementation.

Step 2: Evaluate candidates

Review portfolios for concrete evidence of algorithm design and verification skills. Uma can run instant video interviews and build shortlists with side-by-side comparisons to help you identify top performers quickly.

  • Look for DSP analysis scripts that demonstrate spectral estimation using objects like dsp.SpectrumEstimator.
  • Check for filter design artifacts that show discrete-time filter behavior modeled and simulated in Simulink.
  • Verify experience with Simulink Design Verifier for generating test cases and validating model coverage objectives.

Step 3: Interview your top choices

Discuss technical approaches to signal modification and information extraction. Schedule and conduct interviews within Upwork Messages to receive an immediate transcript and summary after each conversation.

  • Ask how they handle algorithm-to-hardware collaboration when mapping DSP logic to FPGA or ASIC targets.
  • Request examples of test benches they built to support system verification and model checking.
  • Evaluate their process for iterating on simulation results to refine digital filter performance.

Step 4: Agree on scope and begin work

Set clear milestones for deliverables such as verified models and validation assets. Use Upwork Messages and the contract workroom for communication and project management, plus identity verification, payment protection, hourly tracking, and project funds for security.

  • Define milestones for submitting DSP analysis scripts and filter demonstration models.
  • Require verification results that include generated test cases or evidence of coverage objectives.
  • Establish a workflow for exporting algorithm artifacts prepared for downstream hardware implementation.

Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this article. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.

The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.

How much does hiring a digital Signal Processing specialist cost?

$500-$2,000 per project is a typical range for focused digital Signal Processing specialist work. Final pricing depends on scope, technical complexity, required integrations, source-material quality, revision needs, and the freelancer's experience level.

Spectral analysis

$500-$1,000/project

Entry-level to mid-level
  • MATLAB code for FFT-based frequency estimation
  • Plots showing signal spectrum and noise floor
  • Summary of frequency content findings

Filter design

$1,000-$2,500/project

Mid-level
  • Simulink block implementing discrete-time filter
  • Frequency and impulse response plots
  • Design parameters and coefficient values

Model verification

$2,500-$4,500/project

Mid-level to senior-level
  • Generated scenarios from Simulink Design Verifier
  • Evidence of model objective satisfaction
  • Results of simulation-based checks

Algorithm prototyping

$4,500-$7,000/project

Senior-level
  • Complete DSP logic in MATLAB/Simulink
  • Simulation environment for system verification
  • Latency and resource usage estimates

Hardware implementation support

$7,000-$12,000/project

Expert-level
  • Refined algorithm for FPGA/ASIC workflow
  • Steps for hardware collaboration process
  • Final test assets for hardware validation

Frequently asked questions

Is hiring a digital Signal Processing specialist worth it?

For most businesses, yes: hiring a digital Signal Processing specialist is worthwhile. These experts build and verify algorithms that extract information from discrete-time signals in time and frequency domains. They design digital filters and perform spectral analysis to support hardware implementation workflows.

How do I evaluate digital Signal Processing specialist candidates?

Review their experience with model-based design workflows in MATLAB and Simulink. Look for candidates who generate test cases using Simulink Design Verifier to validate model behavior and coverage objectives.

What tools does a digital Signal Processing specialist use?

These specialists use MATLAB for spectral estimation and Simulink for modeling DSP systems. They also apply the dsp.SpectrumEstimator System object and integrate algorithms with FPGA or ASIC design flows.

What deliverables can I expect from a digital Signal Processing specialist?

You receive DSP analysis scripts, filter design artifacts, and verification results with generated test cases. The specialist also submits test benches and model assets prepared for hardware implementation.