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$50 hourly
Georgi G.
- 5.0/5
- (149 jobs)
I am a software developer specializing in the field of Data Science. Some of the projects I have worked on include: algorithmic and quantitative crypto trading strategies, statistical analysis, data mining, machine learning, data visualization. Writing code to analyze data is what I am passionate about and Python is my tool of choice.

API Development
Quantitative Finance
AWS Lambda
Bitcoin
Cryptocurrency
PostgreSQL
FinTech Consulting
Trading Automation
Data Analysis
Data Visualization
Matplotlib
Python
pandas
$40 hourly
Peter M.
- 4.9/5
- (103 jobs)
My specializations is developing of web services, network services, web and desktop applications, browsers extensions, automation and data processing solutions, using of APIs, etc. I can do all parts of project except design: convert design or sketch to templates, develop back-end and front-end, configure and support software, hardware and network. Experience both in programming and system administration helps me to see the whole picture and to find the best solutions. IT is not just my profession, IT is my life from an early age. I started programming in Basic at 1998, when I was 9 years old. Since 2004 I am developing mainly in PHP and Javascript. Also since 2006 I have worked several years as Linux and network administrator in a couple of ISPs. My main skills: ✓ Networks, protocols and services. I have wide experience with non-standard types of communications, building software from scratch for very specific tasks, etc. ✓ JavaScript and company: Chrome and Firefox extensions, Google Script, Node.js, Puppeteer/PhantomJS, Electron/NW.js, Vue.js, etc. ✓ PHP. Usually I use my own framework. ✓ Deep knowledge in wide range of web-scrapping and automation technologies. ✓ SQL and NoSQL databases. Wide experience with MySQL. ✓ HTML, CSS, also Bootstrap, etc. ✓ Wide range of APIs: Google, Yandex, social networks, payment systems, VoIP and many others. ✓ System and network administration. I have experience with many technologies and services. I have thousands successfully completed jobs and hundreds happy clients. I love unusual tasks and unusual solutions of usual problems. I take only those tasks which I can perform in high quality. I am full-time freelancer.

API Development
Linux System Administration
Google Ads
Electron
VPN
Google Chrome Extension
PROXY Networks Remote Support Software
Web Service
Network Software
Vue.js
Node.js
Data Scraping
JavaScript
PHP
$39 hourly
MARTIN I.
- 5.0/5
- (4 jobs)
🔥 AMAT VICTORIA CURAM ⚔️ – Victory Loves Preparation 🔹 Specializing in modern Node.js ecosystems, architecting scalable enterprise solutions with 6+ years of experience. 💻 Core Technologies: 🛠 Backend: Node.js, Express, NestJS, TypeScript 🖥 Frontend: React.js 🗄 Databases: MongoDB, PostgreSQL, DynamoDB, Firebase ☁️ AWS Cloud: AppSync, S3, Lambda, API Gateway, CloudWatch ☁️ GCP Cloud: Pub/Sub, Google Cloud Functions, Cloud Triggers 🔗 API Development: REST, GraphQL (Apollo) 🛡 Security & Data Sanitization: Input validation, escaping, encryption 🧪 Testing: Jest, Mocha, Chai (Unit, Integration, E2E) 🐙 Version Control: GitHub, GitLab, GitKraken 🔹 Specialized Skills: 🛠 Blockchain Development: Token monitoring across EVM chains & Solana 📌 Infrastructure: Terraform & AWS-native deployments 🔌 Cloud Platforms: AWS (Serverless Architectures) 🗂 ORM/ODM: TypeORM, Mongoose for database modeling 🔄 Version Control: Git, GitHub, Bitbucket 📊 Project Management: Jira, Agile/Waterfall/Kanban/Hybrid-Waterfall 🛒 E-commerce: Salesforce Commerce Cloud, SFRA 🔗 3rd-Party Integrations: Expert in API integrations 🎯 Achievement Highlights: ✅ Architected real-time blockchain data synchronization systems ✅ Developed sophisticated IoT access management solutions ✅ Led international e-commerce projects with complex payment integrations ✅ Built sustainable tech solutions for the green sector 🔥 What Sets Me Apart: 🚀 Full-stack back-end expertise enabling end-to-end solution development 💡 Strong focus on scalable, maintainable architectures ⚡ Experience with high-performance, real-time systems 🔗 Proven track record in managing complex integrations 🌍 Successful remote collaboration with global teams 📚 Continuous learner with multiple technical certifications I combine technical excellence with a passion for innovation, transforming complex requirements into elegant, efficient solutions. 📩 Available for short-term projects & long-term collaborations. Let’s discuss how I can bring your vision to life!

API Development
MongoDB
Firebase Cloud Firestore
PostgreSQL Programming
AWS Lambda
Amazon DynamoDB
Terraform
TypeScript
PostgreSQL
GraphQL
NestJS
ExpressJS
Node.js
Salesforce App Development
JavaScript
$40 hourly
Antonia C.
- 0.0/5
- (0 jobs)
Are you looking for a reliable developer to extract, process, and optimize data, or build scalable, cloud-based applications? I’m a skilled Python Developer with expertise in web scraping, data engineering, REST API development, and cloud infrastructure. My passion is helping businesses unlock the power of data and automation to achieve their goals. 🌐 Web Scraping & Automation I specialize in building custom web scraping solutions that extract, process, and deliver valuable data from websites, even those with complex structures or restrictions. Using frameworks like Flask, Django, and FastAPI, I ensure the scraped data is accurate and delivered in a format that meets your needs. 📊 Data Engineering & Pipelines With a deep understanding of data engineering, I can design and implement ETL (Extract, Transform, Load) pipelines that streamline your data workflows. From data collection to processing and storage, I’ll help you manage data more efficiently, empowering your business to make smarter decisions. ☁️ Cloud Solutions & Infrastructure I have hands-on experience with AWS, Azure, and Google Cloud, enabling me to deploy and manage cloud-based applications that are scalable and cost-effective. Whether it's setting up virtual environments or leveraging cloud services, I ensure your infrastructure is robust and future-proof. 🐳 Containerization & Deployment To ensure smooth and scalable deployments, I utilize Docker for containerization and Kubernetes for orchestration, enabling your applications to run consistently in any environment. I also integrate CI/CD pipelines to streamline development and automate testing and deployment processes. 🔧 Why Work with Me? Tailored solutions: Every project is unique, and I take the time to understand your specific needs to deliver a solution that fits perfectly. Efficiency and reliability: I ensure fast turnarounds and maintain clear communication throughout the process. Scalability: Whether you're a startup or an enterprise, I build solutions that can grow with your business. Let’s discuss how I can help you achieve your goals with cutting-edge Python solutions. I’m excited to work on projects that push the boundaries of technology and exceed your expectations! 🚀 Key Improvements: Client-Focused: Emphasizes how your skills can help solve client problems rather than just listing technical abilities. Simplified Jargon: More approachable language for clients who may not be highly technical. Clear Outcomes: Highlights how your work can make a direct impact on their business (e.g., making smarter decisions, future-proofing infrastructure, etc.). Action-Oriented: Ends with a clear invitation to connect and explore opportunities.

API Development
Data Science
Data Scraping
Elasticsearch
Python Script
Python Asyncio
Database
Django
AWS Application
Python-Requests
AWS Lambda
MySQL
Web Development
Python
SQL
$25 hourly
Hristo I.
- 5.0/5
- (1 job)
I am a pretty fast learner. This is really useful in my line of work especially in Research and Development projects and situations. I have personal experience with a lot of technologies already, specializing professionaly in C#, ASP.NET, HTML, JavaScript, PHP, SharePoint, DevOps Tools, Project management, Team management, C/C++, Java, Python, Powershell, Mentorship, Application architecture and too many other technologies to be meaningful to add. I also have good knowledge about servers, communications, computer diagnostics, databases, linux amongst other things.

API Development
Django
Umbraco
WordPress
.NET Core
.NET Framework
Python
C#
API Integration
C++
Web Application
$50 hourly
Tansu A.
- 0.0/5
- (0 jobs)
Senior Software Developer | Java | Python | Android I am a highly skilled Senior Software Developer with expertise in mobile and desktop application development. With a strong background in Java, Python, and Android app development, I have successfully delivered high-quality software solutions for various industries. I hold a Bachelor’s degree in Computer Systems and Technologies and a Master’s degree in Software Engineering, equipping me with a deep understanding of software design, development, and optimization. What I Offer: ✅ Custom mobile and desktop applications ✅ Android app development (native & hybrid) ✅ Backend development and API integration ✅ High-performance, scalable software solutions With a keen eye for detail and a commitment to excellence, I ensure that every project meets the highest standards. Let's discuss how I can help bring your ideas to life!

API Development
HTTP
FTP
SSH
MQTT
Arduino Firmware
Serial Port Interfacing
Python
Java
Android NDK
Scripts & Utilities
Firmware Programming
Android App Development
App Development
Desktop Application
$30 hourly
Dzhengiz S.
- 5.0/5
- (2 jobs)
I specialize in transforming complex datasets into meaningful insights using advanced data analysis techniques and cutting-edge visualization tools. With extensive experience in Python (including libraries like Pandas, Matplotlib, Seaborn, and Plotly), I thrive in developing automated data pipelines, building machine learning models, and optimizing data workflows for large-scale projects. I am skilled in database management, implementation, tuning, and query design with stored procedures, views, functions, macros and table normalization with cross-platform experience on various database platforms such as MS SQL Server, Oracle, MySQL, PostgreSQL, Oracle, DB2, Teradata, NoSQL, and others. Why Work With Me: My clients often praise my responsiveness, attention to detail, and problem-solving skills. I don’t just write code – I solve business problems using data. When you hire me, you get a partner who thinks proactively about your project’s success. Technical Specialties Web Automation & Data Scraping - Python: Scrapy, Selenium, Beautiful Soup, Playwright - Node.js: Puppeteer.js, Cypress.js - Workflow Automation Tools: Zapier, Make.com, Automate.io Backend Development - Expertise in Python (Django, Flask, FastAPI) - Proficient in Node.js (Express) Frontend Development - Proficient in React.js, Redux, Next.js, and React Native - Skilled in Vue.js, Nuxt.js, Vuetify, and Vuex - Experienced with mapping technologies like Mapbox, Leaflet, and ArcGIS

API Development
Automation
Web Crawling
TensorFlow
API Documentation
RESTful API
FastAPI
Python
Data Analysis
Data Science
Selenium
Scrapy
Data Scraping
Web Scraping
Kajabi
$50 hourly
Plamen G.
- 0.0/5
- (0 jobs)
I'm a skilled professional specializing in AI and data-driven solutions. My expertise includes training open-source models, leveraging commercial APIs like OpenAI, and deploying robust microservices both on-premises and in cloud environments. I excel in data analysis, handling imbalanced datasets, and delivering actionable insights. My technology stack includes Python, TensorFlow, PyTorch, Hugging Face, scikit-learn, Docker, Kubernetes, AWS, and Azure. Whether you need model training, deployment, or analytical support, I'm here to help drive your projects to success.

API Development
GPT API
Hugging Face
Docker
Django
Azure Machine Learning
Azure AI Vision
AWS Development
NoSQL Database
SQL
Python
PyTorch
Artificial Intelligence
Machine Learning
Data Analysis
$10 hourly
Ivan P.
- 0.0/5
- (0 jobs)
I'm a back-end developer with experience in building websites for any sized businesses. I can help with anything you want! - I'm experienced in HTML, CSS, JS (including NodeJS), PHP, GoLang, C# - I'll design required API if you want me to and provide a clean documentation about it - Regular communication is vital to me so we'll keep in touch

API Development
API Framework
API Documentation
Back-End Development Framework
Back-End Development
RESTful API
API Blueprint
C#
Back & Spine Design
Golang
TypeScript
JavaScript
$15 hourly
Plamen K.
- 0.0/5
- (0 jobs)
I am a software developer with a passion for backend software applications. With several years of experience in different programming languages especially Java. I have developed a strong foundation in computer science principles and a keen eye for detail.

API Development
Hibernate
RabbitMQ
PostgreSQL
Spring Boot
Web Application
Translation
Microservice
Database
RESTful API
Java
$33 hourly
Sergey K.
- 0.0/5
- (0 jobs)
Results-driven Software Engineer with a comprehensive skill set and over 5 years of experience. Proficient in both frontend and backend technologies, with hands-on experience in JavaScript, C#, HTML, CSS, and various frameworks such as React.js, Node.js, and Express.js. Possesses good knowledge of cloud services, eCommerce platforms, and database management. Adept at collaborating with cross-functional and international teams to drive project success. Seeking opportunities to contribute expertise in project development. Programming languages: JavaScript (5 years), TypeScript(2 years), C# (1 year), HTML (5 years), YAML (1 year) Domain specialization: E-Commerce (over 4 years), Education (1 year), Video Sharing (1 year) Front-End Technologies: - Frameworks and Libraries: React.js, React-Admin, Next.js, Vue.js, Nuxt.js, Bootstrap, MaterialUI, Handlebars.js Front-End Scripting: jQuery Back-End Technologies: - Frameworks and Libraries: Express.js, Nest.js, GraphQL Cloud Services: AWS (Lambda, SQS, SNS, EventBridge, API Gateway), GCP (Cloud Functions, Cloud Storage), Firebase(Hosting, Realtime Database, Cloud Storage, Cloud Functions), Heroku. Data Formats: JSON, XML, YAML Testing: SpecFlow(BDD framework for .Net), Jest. Version Control: Git, Bitbucket, GitHub Content Management Systems: BigCommerce, StrapiJS, KeystoneJS Databases: MongoDB, PostgreSQL, DynamoDB ORM: Prisma ORM, TypeORM ODM: Mongoose.js Project management tools: Jira, Tempo for Jira Bundlers: Webpack, Parcel Search tools: Bloomreach, Algolia Operating systems: Windows, Linux (Ubuntu WSL) Platforms: Node.js, Docker, Ngrok Experience (last 5 + years) Full Stack Software Engineer 2019 - Now 4IRE, Mira Commerce Digital Agency, Homebranded LLC • Contributing to the development of a large-scale application as part of a multidisciplinary team, including PMs, TL, front-end, and QA engineers. • Implementing backend functionality from scratch using Nest.js, designing database schemas and APIs, and resolving bugs to ensure smooth system functionality. • Developing frontend components in React.js (Next.js) and AWS services, focusing on responsive design and user-centric features. • Worked on custom AWS middleware development, implementing "Site Reports and Notifications" modules, fixing issues, and enhancing system components in collaboration with a team of full-stack and QA engineers. • Focused on improving page load speed and accessibility compliance, alongside bug fixes. • Migrated millions of records from Salesforce to BigCommerce using optimized data processing pipelines, ensuring data integrity and minimizing downtime. Developed custom widgets and REST APIs, improved performance, and addressed support issues. • Implemented tailored modules, frontend styling, and resolved bugs to align with technical requirements. • Supported data migration and custom module development, ensuring smooth system functionality and integration with BigCommerce. • Participated in architectural decision-making for scalable backend solutions. • Set up data monitoring dashboards using Grafana for real-time performance tracking and business metric visualization, providing crucial insights to stakeholders. • Developed custom data analysis tools for business intelligence, utilizing DynamoDB and PostgreSQL to derive actionable insights for client decision-making. • Acted as a mentor for junior developers, guiding them in best practices for full stack development.

API Development
BigCommerce
Ecommerce Development Consultation
Scripts & Utilities
Cloud Services
AWS Application
Cloud Database
Auth0
Front-End Development
Back-End Development
Data Migration
Cloud Application
Database Design
API Integration
$15 hourly
Dimitar D.
- 5.0/5
- (0 jobs)
Are you looking for a developer who is passionate about creating exceptional solutions and delivering results? You’re in the right place! 🎯 | FastAPI Developer ⚡ | Committed to Excellence ✅ | Results-Driven ✅ | Lifelong Learner ✅ Let’s connect! 🤝🤝 I'm a Python developer specializing in FastAPI and RESTful APIs. My strong foundation in business management gives me a unique edge as a developer. I understand how to align technical solutions with business goals, ensuring the APIs and backend systems I develop not only function flawlessly but also support your strategic objectives. While I continue to expand my expertise in advanced software engineering and emerging technologies, I already bring strong skills in API development, database optimization, and secure authentication systems. My dedication to continuous learning ensures that I stay updated with the latest tools and techniques to deliver the best solutions for your projects. I build secure, scalable, and high-performance backend systems tailored to your business needs. With expertise in API design, authentication (JWT, OAuth2), and database management, I deliver clean, maintainable code and prioritize timely delivery. What i can do for you? - Design and develop custom RESTful APIs using Python and FastAPI. 🔧 - Implement secure authorization mechanisms, including JWT Authentication, HTTP Bearer Authentication, and Role-Based Access Control (RBAC) to manage user permissions effectively.🔒 - Integrate third-party services and APIs into your application seamlessly. 🌐 - Optimize database interactions using SQL, PostgreSQL, and Object-Relational Mappers (ORMs) like SQLAlchemy.⚙️ - Implement features like user account verification, password reset workflows, and secure login systems.✅ - Deploy robust backend systems using Neon for database management and Render for API deployment, ensuring scalability and reliability.☁️ Why Work with Me?: - Strong alignment of technical and business requirements. 🤝 - Effective communication and regular updates. 📅 - Reliable, high-quality solutions tailored to your needs. ⭐ Let’s collaborate to bring your project to life! 🚀

API Development
FastAPI
Git
Swagger
SQL
SQLAlchemy
Python
REST API
$75 hourly
Vladislav A.
- 0.0/5
- (0 jobs)
Experienced Senior Developer with a demonstrated history of I work in the information technology and services industry. Skilled in DevOps, .NET Framework, Networking, Software Development, and System Administration. Strong engineering professional graduated from New Bulgarian University.

API Development
AI Chatbot
AI App Development
AI Agent Development
Automation
DevOps
$30 hourly
Volodymyr C.
- 0.0/5
- (0 jobs)
Hey there! 👋 I'm a Payment & API Integration expert with 5+ years of experience, making Stripe, PayPal, and other payment systems work flawlessly, fast, and secure. 💳 Payment Systems – Stripe, PayPal, Braintree, Square, and more. I set up subscriptions, one-time payments, Split Payments, Stripe Connect, and complex monetization models. 🔗 API Integrations – Skilled in REST, GraphQL, Webhooks, OAuth, OpenAI API, Twilio API. I connect services and automate processes. 💻 Full-Stack Development – React, Next.js, Node.js, NestJS, AWS, PostgreSQL, MongoDB —building everything from MVPs to scalable SaaS platforms, CRMs and marketplaces. If you need someone to make payments simple, automate processes, and bring your project to life, let’s chat! 🚀 Want to know more? Below is a detailed overview of my experience, skills, and the value I can bring to your project. Let’s get into it! 🔍

API Development
MongoDB
CSS
PostgreSQL
Payment Gateway Integration
Next.js
Web Application
PHP
Node.js
Web Development
API Integration
React
JavaScript
Stripe
API
$10 hourly
Krasimir S.
- 0.0/5
- (0 jobs)
I am an experienced software developer who has designed and implemented numerous projects in my career. My main areas of expertise are: - Golang - Backend development - Infrastructure Development (Cloud) - Microservices design I can deliver system development from scratch if necessary or help with existing systems,

API Development
PostgreSQL
Linux
Bash
Apache Kafka
Redis
SQL
Cloud Development
React
Docker
Kubernetes
Golang
International Development
$10 hourly
Georgi A.
- 0.0/5
- (0 jobs)
💻 Experienced JavaScript developer specializing in web automation, API integrations, and AI-powered web solutions. Need efficient web automation, JavaScript bug fixes, or interactive web applications? 🚀 ✅ My Skills: Front-end Development: HTML, CSS, JavaScript (Vanilla, ES6) Web Scraping & Automation: Puppeteer, Playwright, Node.js Browser Extensions: Chrome Extensions (JavaScript) AI & API Integrations: OpenAI API, GPT, REST API integration Bug Fixing & Code Optimization 💡 Why Choose Me? ✔ I use AI tools (Cursor AI, ChatGPT) to work faster and smarter ✔ Clear communication and clean code ✔ Quick delivery and professional results Let’s bring your JavaScript project to life! Message me now, and let's get started 🚀

API Development
Puppeteer
React
OpenAI API
RESTful API
API Integration
Google Chrome Extension
Web Scraping
CSS 3
HTML5
Node.js
JavaScript
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