
Closed
Posted
I have a functioning machine-learning application with a solid core, yet bugs keep surfacing and the overall accuracy still falls short of what I need. My goal is to push every component of the model toward peak performance while stamping out recurring issues. Here’s what I need from you: • Audit the current codebase to identify logic flaws, data-handling mistakes, and any silent failures that degrade predictions. • Refine model architecture and hyper-parameters so we see a measurable boost in accuracy on our validation set. • Strengthen the training pipeline with better data preprocessing, feature engineering, and reproducibility practices. • Implement automated tests and robust error logging so new bugs are caught early. • Document the improvements clearly so future iterations remain maintainable. The stack already uses common Python ML tooling (PyTorch, TensorFlow, scikit-learn, Jupyter). If you have preferred libraries for debugging, visualization, or experiment tracking (e.g., Weights & Biases, MLflow), feel free to suggest them. Success looks like: • Consistent, reproducible accuracy gains on existing benchmarks. • A cleaner, well-commented codebase free of the most frequent runtime errors. • Deployment-ready builds that operate without unexpected crashes. If you thrive on digging into code, diagnosing stubborn ML issues, and delivering tangible accuracy improvements, I’d love to collaborate.
Project ID: 40501644
144 proposals
Remote project
Active 22 secs ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
144 freelancers are bidding on average €19 EUR/hour for this job

Hello Marco, Low accuracy with a solid model usually points to data or pipeline issues, not the model. Common causes include train/validation leakage, inconsistent preprocessing, or hidden NaN/type issues. Before tuning anything, I would build a reproducible baseline: fix seeds, lock the validation set, and confirm consistent accuracy across runs. Then I would audit the data flow for leakage, label errors, and preprocessing mismatches. Next, add experiment tracking (MLflow or W&B) so runs are comparable. After fixing the pipeline, tune the model step by step and only accept reproducible gains. Finally, add tests, monitoring, and documentation to prevent bugs from returning. My focus is stable, repeatable accuracy improvement and a clean, deployment-ready codebase. Best, Niral
€12 EUR in 40 days
7.9
7.9

⭐⭐⭐⭐⭐ Improve Your Machine Learning App's Accuracy and Performance Today! ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project needs, and I see you're looking for a machine learning expert. You don't need to look any further; Zohaib is here to help you! My team has successfully completed over 50 similar projects focused on enhancing ML applications. I will audit your code, refine your model, and implement robust testing to ensure peak performance. ➡️ Why Me? I have 5 years of experience in machine learning, focusing on model optimization, error detection, and data handling. My skills include auditing code, refining model architectures, and enhancing data preprocessing. I also have a strong grip on tools like PyTorch, TensorFlow, and scikit-learn, ensuring a thorough approach to your project. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to our conversation! ➡️ Skills & Experience: ✅ Machine Learning ✅ Model Optimization ✅ Data Preprocessing ✅ Hyperparameter Tuning ✅ Code Auditing ✅ Error Detection ✅ Feature Engineering ✅ Automated Testing ✅ Documentation ✅ PyTorch ✅ TensorFlow ✅ scikit-learn Waiting for your response! Best Regards, Zohaib
€7 EUR in 40 days
8.1
8.1

Hello, I trust you're doing well. I am well experienced in machine learning algorithms, with nearly a decade of hands-on practice. My expertise lies in developing various artificial intelligence algorithms, including the one you require, using Matlab, Python, and similar tools. I hold a doctorate from Tohoku University and have a number of publications in the same subject. My portfolio, which showcases my past work, is available for your review. Your project piqued my interest, and I would be delighted to be part of it. Let's connect to discuss in detail. Warm regards. please check my portfolio link: https://www.freelancer.com/u/sajjadtaghvaeifr
€30 EUR in 40 days
7.2
7.2

As an offshore development team with over 11 years of proven experience, we are no strangers to the complexities and nuances of enterprise-level projects, and debugging a machine-learning system is our bread and butter. Our deep technical expertise in C++ programming, Machine Learning (ML), Python, and Software Architecture syncs perfectly with your needs. We've successfully delivered over 60+ projects globally, earning us the trust and repeat business of clients spread across 6 different countries. But it's not just about our technical know-how. It's about finding a team that you can depend on, a team that treats your project as if it's their own – this is where we shine. We value clear communication, reliability, and going the extra mile for our clients. To keep improving and optimizing your ML system, we suggest using Weights & Biases or MLflow for debugging, visualization or experiment tracking to monitor and ensure consistent gains throughout the process. Our meticulous approach aligns perfectly with your project goals: from auditing your codebase to refining model architecture and strengthening data preprocessing methods - we'll not only make your ML system more accurate but also make it easier to maintain for future iterations. Lastly, with end-to-end documentation of all enhancement-made including improved automated tests and robust error logging- we'll eliminate hidden issues while keeping you updated at every step.
€20 EUR in 40 days
6.9
6.9

Hello, I built many large scale machine learning and AI platforms before and I would love if I get the chance to work on your project. I can review the existing Python codebase, improve PyTorch, TensorFlow or scikit learn pipelines, optimize feature engineering and hyperparameters, and add reproducible testing with MLflow or Weights and Biases where useful. I prefer building long term partnerships through measurable results. One question I have is whether the current accuracy limitation comes mainly from model design or from noisy and imbalanced training data? Can we connect over a chat to discuss more about the project? Best regards, Dev Singh
€15 EUR in 40 days
6.6
6.6

Machine Learning expert here — I’ll deep-dive into your existing ML application, eliminate hidden bugs, optimize the training pipeline, and improve model accuracy through data refinement, feature engineering, architecture tuning, and reproducible experimentation. Experienced with PyTorch, TensorFlow, scikit-learn, MLflow, and production ML systems. I’ll deliver a cleaner, well-documented codebase, robust testing and logging, and measurable performance improvements ready for reliable deployment. Please ping me to discuss further and deliver exceptional results. Thanks!!!
€14 EUR in 40 days
6.4
6.4

Hey there Glane here, I can help audit and optimize your existing machine-learning application by identifying logic flaws, debugging silent failures, improving preprocessing and feature engineering pipelines, and refining model architectures and hyperparameters for measurable accuracy gains. I’m comfortable working with PyTorch, TensorFlow, scikit-learn, and Jupyter-based workflows, and can also integrate tools like MLflow or Weights & Biases for experiment tracking, reproducibility, and debugging. The final deliverables can include a cleaner and well-documented codebase, automated testing/error logging, benchmark comparisons, and deployment-ready improvements focused on both stability and performance.
€12 EUR in 40 days
5.8
5.8

As an experienced Full-Stack Developer and AI specialist, I am highly adept in solving complex problems and optimizing existing systems through my tried and tested solutions approach. My solid proficiency in Python, Matlab, C++, and C# will be an asset as I audit your current codebase, analyzing its logic flaws, potential data mishandling or silent failures that may hinder performance. With proven expertise in machine learning (including object detection tracking, image processing and recognition, computer vision, and more), I can enhance your project through improving the model architecture with optimal hyper-parameters for increased accuracy seen on the validation set. My skills in data preprocessing and feature engineering will also ensure a fortified training pipeline that embraces reproducibility practices, thereby improving the overall quality of predictions. Moreover, my natural problem-solving tendencies align perfectly with your need for automated tests implementation and robust error logging which will help us catch new bugs early-on and avoid unexpected crashes. By applying proper documentation of improvements made, I guarantee a cleaner codebase free of common runtime errors. Let's collaborate to push your project to peak accuracy while stamping out any recurring issues it may face; your success is my top priority!
€9 EUR in 40 days
5.9
5.9

I'm an ML engineer specializing in production model hardening and performance optimization. I'll conduct a rigorous codebase audit identifying logic flaws, data-handling errors, and silent failure modes, then refine model architecture and hyperparameters for measurable accuracy gains on your validation set. I'll strengthen the training pipeline with enhanced preprocessing, advanced feature engineering, and reproducibility best practices, implement automated testing and comprehensive error logging to catch bugs early, and document all improvements for maintainability. Additional expertise in MLflow and Weights & Biases for experiment tracking and model versioning. Success metrics include consistent accuracy improvements on existing benchmarks, a clean, well-commented codebase free of recurring errors, and deployment-ready builds operating without unexpected crashes. Ready to start immediately.
€20 EUR in 40 days
6.2
6.2

Hello Client , With a deep expertise in Python, I can bring immense value to your project. My background includes not only enabling efficient, scalable data solutions but also a comprehensive command of popular tools like PyTorch, TensorFlow, scikit-learn, which aligns seamlessly with your current stack. This familiarity will ensure a quick grasp of the codebase and enable me to quickly identify its issues and debug accordingly. Besides my technical abilities in ML model design & training, cleaning up your data preprocessing and implementing robust error tracking system is also one of my fortes. I thrive on 'digging into code', provocatively detecting the most perplexing errors and delivering tangible accuracy improvements - exactly what you need. Moreover, my extensive industry experience has taught me the importance of well-commented and maintainable codebases. I can promise to revamp your system in an organized manner, documenting enhanced components clearly so future iterations remain manageable. Trust me, when it comes to elevating the productivity and stability of existing systems, there are few talents that parallel mine. Let’s rework this model together!
€6 EUR in 40 days
6.0
6.0

I am very interested in applying for your job since it seems to fit very will with my experience and skills. Regards SamirBanna
€12 EUR in 40 days
5.7
5.7

I understand you need to debug your existing ML application to eliminate recurring bugs and improve overall accuracy. My experience includes successfully identifying and resolving subtle data-handling mistakes and silent failures in production ML systems, leading to a 15% reduction in prediction errors for a previous client. I will conduct a thorough audit of your codebase, focusing on identifying logic flaws and data inconsistencies using Python and PyTorch. This will be followed by targeted hyperparameter tuning and potential architectural refinements within your existing model framework, aiming for a measurable boost in accuracy on your validation set. The training pipeline will be strengthened with improved data preprocessing steps, likely involving libraries like Pandas and Scikit-learn, to ensure more reliable model performance. What is the primary metric you are currently using to evaluate model accuracy? Ready to start as soon as you confirm scope.
€25 EUR in 7 days
5.2
5.2

Your model is likely overfitting on training data or suffering from data leakage - both silent killers that inflate dev metrics but tank production accuracy. I've debugged 8 ML systems where "bugs" were actually flawed train/test splits or feature preprocessing applied inconsistently between training and inference. Before proposing fixes, I need clarity on two things: - What's your current validation accuracy vs production accuracy gap? If it's over 10%, you have a data pipeline issue, not a model tuning problem. - Are you tracking experiment runs systematically? Without MLflow or W&B history, you're flying blind on what hyperparameters actually moved the needle. Here's the diagnostic approach: - PYTHON + PYTORCH/TENSORFLOW: Audit data loaders for shuffling bugs, check for target leakage in feature engineering, validate that normalization stats match between train and inference pipelines. - MLFLOW: Implement experiment tracking with artifact logging so every model version is reproducible - no more "it worked yesterday" mysteries. - DEBUGGING + VISUALIZATION: Build unit tests for data transforms, add assertion checks in training loops, create confusion matrix dashboards to spot which classes are failing. - SOFTWARE ARCHITECTURE: Refactor training pipeline into modular components with clear interfaces - preprocessing, feature extraction, model training, evaluation - so bugs can't hide across tangled code. - C++: If inference speed is a bottleneck, I'll profile Python hotspots and rewrite critical paths in C++ extensions for 10-50x speedup. I've taken 4 ML systems from 70% to 92%+ accuracy by fixing data bugs that looked like model problems. Let's schedule a 20-minute call to review your current metrics and pipeline architecture before committing to a fix strategy.
€9 EUR in 30 days
5.6
5.6

Hello, I’m interested in helping improve and stabilize your machine-learning application. I enjoy working on ML projects where the goal is not only to make the model run, but to make it reliable, reproducible, and measurably better. From your description, this sounds like a mix of debugging, model optimization, pipeline cleanup, and accuracy improvement, which is exactly the kind of structured problem-solving I like. I am comfortable working with Python ML tooling including PyTorch, TensorFlow, scikit-learn, Jupyter, NumPy, pandas, and common debugging/visualization tools. If useful, I can also recommend experiment tracking with MLflow or Weights & Biases so accuracy changes are measured clearly rather than guessed. I want to be honest that I would first need to inspect the current code, dataset structure, and validation benchmarks before promising a specific accuracy percentage. However, I can commit to a careful, data-driven process focused on measurable improvement, cleaner code, and fewer runtime issues. I’d be happy to review the current setup and discuss the main recurring issues you are seeing. Best regards.
€17 EUR in 40 days
5.2
5.2

You need someone who can dive into a working ML system, expose the hidden flaws, and push accuracy to a level you can trust. I’ve handled similar projects where the model was “mostly functional” but plagued by silent failures, unstable pipelines and inconsistent validation results. The goal is always the same: stabilize the foundation, then squeeze out measurable accuracy gains. My approach is to audit the full codebase, trace data flow, and identify logic errors, preprocessing gaps or mislabeled edge cases that quietly degrade performance. From there, I refine the model architecture and hyperparameters, strengthen the training pipeline with reproducible preprocessing, and introduce automated tests plus robust logging so future bugs surface immediately. If useful, I can integrate experiment tracking tools like MLflow or Weights and Biases to make tuning transparent and repeatable. Success for you means higher, reproducible accuracy, a cleaner and well commented codebase, and deployment ready builds that run without surprises. I can take your current system and turn it into something stable, predictable and easier to evolve.
€10 EUR in 40 days
5.2
5.2

Hello I just reviewed your project to audit and enhance your machine-learning application, and it sounds like exactly the kind of challenge I enjoy tackling. Improving model accuracy while fixing bugs requires a thorough code review and smart tuning, which I’m well-equipped to handle. Here’s my approach: I’ll start by carefully auditing your Python codebase to spot logic errors and data mishandling that impact predictions. Then, I’ll refine your model architecture and hyperparameters using proven techniques in PyTorch and TensorFlow, combined with feature engineering and better preprocessing. To catch issues early, I’ll implement automated tests and robust logging. I also use MLflow for experiment tracking to ensure reproducibility and clear documentation so future work stays maintainable. Do you have specific benchmarks or datasets you want me to prioritize during tuning? Best regards, AbdulHamid
€12 EUR in 40 days
5.2
5.2

Hi, Debugging and optimising an existing ML system is exactly the kind of work I enjoy — there's something satisfying about taking a model that almost works and pushing it to where it should be. Here's how I'd approach it: start with a full codebase audit to surface logic flaws, data-handling mistakes, and silent failures — the kind that don't throw errors but quietly degrade predictions. In my experience these are often the biggest culprits behind inconsistent accuracy, and they're usually hiding in preprocessing or data loading rather than the model itself. From there I'd work through the training pipeline — cleaning up feature engineering, tightening reproducibility practices, and ensuring the validation setup is actually measuring what it should. Then hyperparameter tuning and architecture refinements where the data supports it. For experiment tracking I'd use Weights & Biases — it makes accuracy gains measurable and comparable across runs, which is essential when you're iterating toward a benchmark. I'd also implement automated tests and proper error logging so regressions get caught before they reach production. Everything documented clearly so future iterations don't require archaeology to understand what was changed and why. What framework is the model built on and what does your current validation benchmark look like? Stelian
€20 EUR in 40 days
4.9
4.9

Hi there, I'm Ruslan, a seasoned and diligent Data Analyst with a sharp focus on Python-based Machine Learning. When it comes to debugging and optimizing existing ML systems like yours, I have extensive hands-on experience in identifying, rectifying and preventing recurring issues. I can successfully navigate your codebase to pinpoint flaws, data-handling mistakes and any silent failures that might be compromising your predictions. To boost your model accuracy, I am well-versed in refining architectures, tuning hyper-parameters and implementing robust error logging processes. Not only that but I'll also beef up your training pipeline using advanced data preprocessing and feature engineering techniques to maximize reproducibility. Drawing from my proficiency in various libraries from PyTorch to scikit-learn as you require, my intuitions project a cleaner, well-commented codebase accompanied by deployment-ready builds specifically designed to operate without any unexpected crashes. Above all else, my ultimate goal is to ensure our work together reaps consistent, measurable accuracy gains on your benchmarks - which signifies long-term value for your project. With my knack for diagnosing the most stubborn of ML issues and transformative skills over Python and Data Analysis combined with an utmost attention to detail - choosing me would indeed mean engaging in exceptional collaboration on this project. I look forward to hearing from you soon!
€12 EUR in 40 days
5.1
5.1

★•══•★ Hi client ★•══•★ My approach will be: ✅ Audit the existing Python ML codebase to find logic errors, data pipeline issues, silent failures, and recurring bugs affecting prediction quality ✅ Improve preprocessing, feature engineering, model architecture, and hyperparameters to target measurable validation accuracy gains ✅ Add reproducibility controls, experiment tracking, automated tests, and stronger error logging to make future iterations safer ✅ Document all changes clearly and deliver a cleaner, more stable, deployment-ready ML application I have experience debugging ML systems with PyTorch, TensorFlow, scikit-learn, Jupyter workflows, model tuning, data validation, testing, and tools like MLflow or Weights & Biases. One key question: do you already have a baseline validation metric and target accuracy improvement defined? Best regards. Rico
€9 EUR in 40 days
5.0
5.0

✋ Hi There!!! ✋ THE PROJECT GOAL:- DEBUG AND OPTIMIZE AN EXISTING MACHINE LEARNING SYSTEM TO IMPROVE ACCURACY, FIX BUGS, AND STABILIZE THE FULL TRAINING AND PREDICTION PIPELINE. I have carefully reviewed the complete project description and understand the need to enhance model performance while ensuring code stability, reproducibility, and clean architecture. I am best fit because I specialize in Python ML systems, debugging complex pipelines, and optimizing model performance. 1 Full codebase audit to detect logic errors, data issues, and silent prediction failures 2 Model tuning with improved architecture, hyperparameter optimization, and feature engineering 3 Pipeline strengthening with testing, logging, and reproducible training workflows UI design, database management, testing, ML pipeline optimization, and full source code delivery at completion. 9+ years experience as a full stack developer with ML debugging and model optimization projects. Similar work completed includes improving model accuracy and fixing production ML pipeline issues. Looking forward to chat with you for make a deal Best Regards Elisha Mariam
€6 EUR in 40 days
4.6
4.6

St.Pölten, Austria
Payment method verified
Member since Dec 26, 2015
€6-12 EUR / hour
€12-18 EUR / hour
€6-12 EUR / hour
€6-12 EUR / hour
€2-6 EUR / hour
₹750-1250 INR / hour
$750-1500 USD
$10-30 USD
$30-250 USD
$250-750 USD
₹1500-12500 INR
£250-750 GBP
$10-30 USD
$75 USD
$3000-5000 USD
$30-80 USD
₹2000-3000 INR
$250-750 USD
$8-15 USD / hour
$30-250 USD
$30-250 USD
$30-250 USD
₹150000-250000 INR
$30-250 USD
$8-15 USD / hour