Hire the best API Developers in Brazil

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$45 hourly
Ronilson P.
- 4.7/5
- (27 jobs)
I'm expert in SAP B1, I've been working with this system for many years, and I've been builded many AddOns, so i know very well SAP Database, it helps me a lot for create good solution to problems. I'm working with Flutter too, so i can easy to integrate SAP with an mobile app or website. I'm easy to talk and i will try to do my best always to solve your problem fast, I'm not looking only for money, Network to me is very important, so i will do my best.

API Development
SQL
SAP Crystal Reports
Microsoft SQL Server Programming
SAP BusinessOne
Application Integration
SAP
SAP HANA
API Integration
Flutter
$50 hourly
Frederico C.
- 5.0/5
- (17 jobs)
I am 15 years experienced C# developer. For the last 9 years, I have been developing solutions for the financial and capital markets and cryptocurrency markets. Main Skills: - Strong understanding of MQL5 scripting language (MetaTrader 5 Platform) - Strong experience in algo-trading development in MT5 and in C# - .NET Framework with its newest features - Experience with ASP.NET MVC - Strong understanding of the structure and logic of Object-Oriented programming - Hands-on experience with REST services / APIs - Efficient with databases like MSSQL and MySQL - Collaborative team member with good communication and everyday workflow reports. - Experience with cloud-based technologies such as AWS / Azure - Clean code adopter. You will always get the most efficient and cleaner code possible. Even though 7 years is not a huge amount of time, I already have done several bots (Stock, Futures, and Forex) for the MT5 Platform as well as some interesting and complex solutions. - Copy trade solution for the Brazilian stock and future markets. This solution made it possible to copy trades executed in an MT5 account to several other MT5 accounts or non-MT5 accounts sending the order through the FIX protocol directly to the Broker system. Besides the usual copy-trade functionality, the solution allowed us to have several "Master Accounts" and the users could choose, in a web-based interface, the Master Account they wanted to "follow". - Copy trade solution for the Binance, Bittrex, and Kraken Crypto Exchanges. I used the same logic already written in the Solution for the Stock and Futures but have implemented a "Bridge" to execute the orders among these Exchanges mentioned. - Arbitrage bot (MT5) in the Brazilian futures market. This arbitrage bot trades 2 assets and has an extraordinarily high percentage of winning trades, too bad that we can only explore a little window of time: About 3 hours once a month, so the bot only trades once per month. - Long-Short bot for the CriptoExcnhage Bitmex. This bot is way simpler than the other solutions but was fun to build. The bot sent 2 orders at the same time in two different accounts, the first one was a long order, and the second one was short. After that, it keeps doing a trailing stop seeking to find that great "all of sudden" highs or lows that happen in the crypto world. The whole idea was to be already with a position opened to get the full movement of the asset. Well, these were just a few examples of solutions I have already done, there are many more. I will always seek the best way to solve/build a solution, If you are on the lookout for a hard-working and dedicated person, do connect with me. Thanks in advance.

API Development
MetaTrader 4
Bot Development
MetaTrader 5
Financial Trading
MQL 4
Cryptocurrency
Binance Coin
MQL 5
Forex Trading
API Integration
API
SQL
.NET Framework
C#
$75 hourly
Isaac F.
- 5.0/5
- (8 jobs)
Hi! I'm a seasoned NetSuite Developer with deep expertise in building, customizing, and optimizing NetSuite solutions to support your unique business processes. I specialize in SuiteScript (1.0 & 2.x), custom workflows, saved searches, and API integrations. Whether you're launching a new NetSuite instance or maintaining a complex setup, I can help you streamline operations and improve performance with clean, efficient code. ✅ What I Can Help You With: Custom SuiteScript development (User Event, Client, Scheduled, Suitelet, Map/Reduce, Portlet, RESTlet) Advanced workflows and form customizations REST/SOAP API integrations with third-party platforms Debugging and optimization of existing scripts Saved searches and custom dashboards Sandbox deployment and testing best practices Technical support and documentation 🛠️ Tools & Skills: SuiteScript 1.0 & 2.x User Event, Client, Scheduled, Suitelet, Portlet, Map/Reduce, RESTlet SuiteFlow (Workflows) SuiteTalk (SOAP/REST APIs) JavaScript, JSON, Postman, Git I'm committed to writing scalable, maintainable code and delivering solutions that fit your business needs. Let’s make your NetSuite environment smarter, faster, and more efficient.

API Development
Responsive Design
SQL Programming
Continuous Integration
NetSuite Development
JavaScript
Web Service
Python
.NET Framework
C#
$25 hourly
Luiz Eduardo D.
- 5.0/5
- (3 jobs)
Hi! My name is Luiz Eduardo and I am a software engineer and tech lead. I am specialized in web applications, and worked in Frontend and Backend. Worked in big companies like Nubank and Blip, and made lots of projects of different types, from design to production. Feel free contact me through chat.

API Development
Google Ads
SEO Performance
MongoDB
HTML
Front-End Development
CSS
Vue.js
Back-End Development
MySQL
JavaScript
TypeScript
HTML5
React
Node.js
$15 hourly
Lucas S.
- 5.0/5
- (3 jobs)
Hello, my name is Lucas Schimidt. I am a full stack developer with knowledge in Python, SQL database language, and web technologies! With over 5 years of experience I have specialized in creating customized solutions, including web development, web design and automation. Passionate about technology!

API Development
Google Cloud Platform
TypeScript
React
Next.js
NestJS Development
NestJS
JavaScript
CSS
HTML
Web Services Development
Python
Web Application
$20 hourly
Bruno K.
- 5.0/5
- (5 jobs)
I am a back-end developer with experience in Java, JS, TS, COBOL, ABAP, and Go. I have been working full-time as a Go developer since 2022, focusing on building REST APIs and microservices. My workflow is powered by Docker, Kubernetes, and CI/CD tools like Jenkins and Gitlab CI, ensuring efficient development processes. I have experience with AWS and Cloud Foundry for deployment, while monitoring is accomplished through Prometheus, Grafana, and Datadog. I also have experience in using K6 for load testing and Litmus for Chaos Engineering. My experience extends to migrations, including successfully transitioning Java projects to Go. I've worked extensively with various databases, including MySQL, PostgreSQL, MongoDB, Redis, S3. Additionally, I've optimized system performance by migrating HTTP APIs to gRPC and have experience with diverse message brokers like RabbitMQ, Kafka, and SQS. I am excited to bring my technical background and problem-solving skills to contribute effectively to your project.

API Development
Docker
Amazon S3
PostgreSQL
Node.js
Back-End Development Framework
MongoDB
Redis
Back-End Development
Golang
$10 hourly
Clariana A.
- 5.0/5
- (4 jobs)
Hello! Are you looking for a developer to create a professional website? I specialize in web development, with experience in creating responsive and functional websites for small and medium-sized companies. I also create web applications and develop systems for websites, providing complete solutions for your company's online presence. Whether it's highlighting your services or boosting your performance, I can help! I have a degree in Systems Analysis and Development and experience in developing websites and applications. My positive and focused approach allows me to solve problems effectively during the development of new projects. My Skills: HTML5 and CSS3 Tailwind CSS Bootstrap JavaScript ReactJS WordPress I'd love to learn more about your organization and your digital marketing, design or website development needs! Feel free to get in touch or send me an invitation to discuss how I can contribute to your project.

API Development
Google Chrome Extension
NodeJS Framework
TypeScript
Next.js
React
Front-End Development
JavaScript
Landing Page
Website
Web Design
WordPress Website
Tailwind CSS
CSS 3
HTML5
$11 hourly
Henrique B.
- 5.0/5
- (4 jobs)
Hello and welcome to my profile! With over seven years of experience as a senior developer, working in various global companies, I'm here to offer expertise in both backend and frontend technologies, with a special focus on scalability and high-performance application development. Throughout my career, I've acquired skills ranging from refining demand to deployment in production environments. My professional journey has allowed me to develop a comprehensive understanding of the nuances of software development, from conceptualization to final delivery. I'm passionate about creating innovative and efficient solutions that meet the specific needs of clients. My client-centered approach and ability to translate complex requirements into practical solutions set me apart as a highly qualified and reliable developer. My experience includes, but is not limited to: Front-end: HTML5, CSS3, AJAX, JavaScript, jQuery, Bootstrap Back-end: ASP.NET, Java Databases: SQL Server, PostgreSQL DevOps: Docker, AWS, Azure Version Control Systems: GitHub, GitLab, Bitbucket, etc. SOAP and REST-based Web Services These are just a few of the technologies I'm familiar with and comfortable working with. I'm always open to learning new technologies and adapting to the specific needs of the project. I'm committed to delivering exceptional results and building long-term relationships with my clients. If you're looking for a reliable development partner to bring your digital ideas to life, I'm ready to help. Feel free to reach out to discuss how I can help drive the success of your project! Thank you for visiting my profile, and I look forward to working together!

API Development
ASP
Web Application
.NET Framework
API
Web API
ASP.NET
ASP.NET Web API
Database Management
Database
$20 hourly
Lucas T.
- 5.0/5
- (8 jobs)
🏆 TOP RATED! 💯 100% Job Success! ⭐️ 5-Star Rated 👨‍💻Senior Full Stack developer with more than 6 years of experience: ☑ Back-end: PHP, Node.js, Laravel, Codeigniter, JAVA, PHP, Spring WebFlux, Spring Boot ☑ Front-end: JavaScript, React, Redux, Typescript and Jquery ☑ Database: MySQL/MariaDB, PDO, PostgreSQL, MongoDB, Cassandra and Redis ☑ AWS, Google Cloud, Docker ☑ Rest API (create, consume and document), SOAP, GraphQL ☑ Unit test: PHPUnit, Jest ☑ MVC architecture, Microservices, Event Driven architecture, Reactive RESTful Web Service ☑ Style: CSS, Material UI, SASS/SCSS and Tailwind ☑ WordPress/Woocommerce: Expertise in developing with programming (custom-code, plugins) ☑Fluent english My skills go beyond techniques, I am very focused on understanding my client's business rules and developing performance solutions in record time. Advanced knowledge in Databases such as MySQL/MariaDB, from simple CRUD to more advanced queries, developing optimized and secure DBs. I use PDO too. Develop small and medium-sized projects, from constitutional websites, landing pages, to E-Commerce, integration with payments and mail (WooCommerce, Rest API) and even maintenance and/or code refactoring. Furthermore, I am a responsible worker, with great communication skills, happy to work in a team and lead product evolution and improvement initiatives. I enjoy long-term projects.

API Development
API
Scrum
WooCommerce
PHP Script
SQL Programming
jQuery
WordPress
CSS
Sass
PHP
Laravel
JavaScript
CodeIgniter
Custom PHP
$28 hourly
Paulo Vitor S.
- 5.0/5
- (4 jobs)
Hello everyone, my name is Paulo Vitor, and I've been a developer since mid-2019, during this time, one thing that always catches my attention is Backend Development and System Integration. I have solid experience in this area, from API Development to Database Modeling. You can find examples of my work in my profile projects. I have knowledge and projects developed in several languages, but mainly in Java and Javascript/Node.js. I still have experience with frameworks, such as Spring Boot, Hibernate, Express, among others. I can also do the hosting and its application on a platform like Vercel or Render, but this will depend on the technologies involved, desired availability, and the platform to deploy. Give me the details of your project and let's jump on a chat so that we can discuss more details for your development.

API Development
Web Scraping
Google Spreadsheets API
Google Sheets Automation
YouTube Automation
Browser Automation
Automation
Script
Scripting
API Integration
Python Script
Java
API
Spring Boot
Spring Framework
$18 hourly
Morgana B.
- 5.0/5
- (4 jobs)
5+ years as a Ruby on Rails web developer. I've been working with: - Github; - Stripe integration; - HTML, CSS3; - Postgres; - Linux systems; - Bootstrap; - CSS components; - Elastic Search; - Heroku; - RESTful APIs; - Active Model Serializer; - Testing with RSpec; - Circle CI; - Sidekiq; - AWS; - SQL. As a web developer, it would be a pleasure to find a suitable solution for your problem through technology.

API Development
Heroku
API Testing
RSpec
GitHub
HTML
Web Development
PostgreSQL
Bootstrap
Ruby on Rails
$12 hourly
Raphael V.
- 0.0/5
- (5 jobs)
I am a Google Apps Script Developer and Google Sheets Automation Expert with extensive experience in creating efficient and customized solutions for process automation within the Google Workspace environment. My expertise enables organizations to streamline workflows and optimize data management through tailored scripts and integrations. As a Data Analyst proficient in Power BI, I have a strong background in developing insightful dashboards and reports that help businesses make data-driven decisions. My analytical skills and ability to visualize complex data sets provide valuable insights to stakeholders. Additionally, I am a versatile Full Stack Developer with a comprehensive understanding of web development, API development and integration, and software development in general. My technical stack includes JavaScript, HTML, CSS, Node.js, Express, Java, Spring Boot, and other tools essential for developing end-to-end web, desktop, and API applications. I thrive on solving complex challenges and continuously learning new technologies to deliver impactful and innovative solutions.

API Development
Google Sheets
Software Development
Data Analysis
API Integration
Web Development
Microsoft Power BI
Google Sheets Automation
Google Apps Script
$75 hourly
Diego B.
- 5.0/5
- (40 jobs)
I am a T-shaped Software Engineer with 20 years of experience building and leading projects ranging from small websites to mission critical, enterprise-level web applications. My main languages are PHP, Python and .NET, but I have used many other during my career including Java and Javascript (both frontend using React, and backend using Node). I also have solid background in Automation, Data Engineering, DevOps and Cloud Platforms. In previous position I was responsible for complex architectures in mission critical applications using multiple cloud providers and platforms like Docker, Heroku, Acquia, Pantheon, Azure, Amazon AWS and Google Cloud. I also have experience working as a Senior Tech Lead, helping Junior, Mid-Level and Senior engineers build better software and boost their careers. I have an MBA degree in Strategic IT Management from FGV/Ohio University and a B.Tech degree in Computer Systems Analysis from IBTA.

API Development
Visual Basic
MySQL Programming
C#
PHP
Front-End Development
Microsoft SQL Server Programming
Python
$40 hourly
Julio Henrique O.
- 5.0/5
- (15 jobs)
I'm an individual backend developer from Brazil. Backend developer with 9+ years of experience in WEB applications, being able to develop simple and complex applications, including working with APIs. I worked in projects as a hotspot for wireless networks, lab system, APIs for mobile apps, and web crawler using Python, Django, Django Rest Framework, Pandas, GraphQL, BeautifulSoup, Selenium, Javascript, HTML5, and Postgresql database. As a DevOps, I worked on setting up Linux physical, virtual machines with KVM and containers using Docker and LXC. I have experience with Nginx, Apache, Mysql, Postgresql, Asterisk, including IVR development with AEL language, voice recognization, text-to-speech. Also, I have experience with scripts in Python and Linux Shell. I worked with firewalls, VPNs and outdoor wireless networks for many companies in Brazil, including an Internet Solution Provider with more than 2 thousand customers. Proven experience in working with remote teams for mid-sized startups as well as finding solutions for non-technical clients.

API Development
Node.js
API
Django
Amazon Web Services
Git
PostgreSQL
RESTful API
Database
JavaScript
Web Crawling
Asterisk
Linux System Administration
Python
pandas
$50 hourly
Wladimir F.
- 5.0/5
- (5 jobs)
🌟 Projects delivered with up to a 70% reduction in operational costs. ⏱️ Refactoring that improved performance by 50%. 🥇 Top 3% of Upwork Talent. 🏆 10+ years of Backend Developer experience. My clients received error-free scalable and highly effective software solutions, boosting their business efficiency and profitability. This not only gives them a competitive edge but also paves their way towards becoming market leaders. 𝐍𝐞𝐞𝐝 𝐞𝐟𝐟𝐞𝐜𝐭𝐢𝐯𝐞, 𝐇𝐢𝐠𝐡-𝐈𝐦𝐩𝐚𝐜𝐭 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬? 𝐇𝐞𝐫𝐞'𝐬 𝐰𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐨𝐟𝐟𝐞𝐫: ✔️ API development for seamless connection and usage across platforms. ✔️ API integration with any third-party solutions. ✔️ Tailor-made systems from the ground up for automating business processes. ✔️ Custom infrastructure based on cutting-edge technologies to transform your ideas into reality and meet your business requirements. ✔️ Highly scalable database structures. ✔️ Real-time log analytics with commercial/custom dashboards. ✔️ CI/CD to automate your workflow from commit, testing, deployment, notification, and more. ✔️ Comprehensive testing across all project domains, encompassing all use cases, edge cases, and complete end-to-end scenarios. 𝐈 𝐜𝐚𝐧𝐧𝐨𝐭 𝐡𝐞𝐥𝐩 𝐞𝐯𝐞𝐫𝐲𝐛𝐨𝐝𝐲, 𝐛𝐮𝐭 𝐰𝐞 𝐦𝐚𝐲 𝐛𝐞 𝐚 𝐠𝐫𝐞𝐚𝐭 𝐟𝐢𝐭 𝐢𝐟 𝐲𝐨𝐮 𝐚𝐫𝐞 𝐭𝐡𝐢𝐧𝐤𝐢𝐧𝐠: ● "I need a solution that I can trust 100% to solve our problems RIGHT.” ● "We have ambitious goals and need a solution architect who can build scalable solutions to match our growth.” ● "I'm not satisfied with out-of-box applications. We need an expert who can build custom applications to meet our requirements.” ● "We're willing to invest in premium solutions that adhere to the highest industry standards. That’s why we need the BEST developers who place a premium on quality.” 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐦𝐞, 𝐲𝐨𝐮 𝐰𝐢𝐥𝐥: ✔️ Save your money by getting clean, efficient code that is easy to read, understand, and extend for any future needs your business might have. A well-known fact is that a well-developed and SOLID principals-based application is much cheaper and faster to expand and modify than developing a new one from scratch whenever business requirements change. ✔️ Get support and warranty on all delivered projects. ✔️ Have a reliable and committed partner that guarantees tasks are executed flawlessly, punctually, and in the most effective manner. ✔️ Focus on more important tasks without distractions, as I handle your technical problems and challenges. ✔️ Witness rapid business expansion through advanced technology solutions customized to your company's needs. 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 & 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐊𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞: 🔸 Backend Development: NodeJS, NestJS, Express, Fastify 🔸 Frameworks & Testing: Prisma, Jest, Passport, ESLint 🔸 Programming: JavaScript, TypeScript 🔸 Infrastructure as Code: Terraform, CloudFormation 🔸 API Development & Integration: RESTful, GraphQL, Google APIs, Stripe 🔸 SQL Management: PostgreSQL, MySQL, RDS 🔸 NoSQL Management: MongoDB, Redis, DynamoDB 🔸 Compute & Serverless: Lambda, EC2, API Gateway 🔸 Authentication & Authorization: Cognito, Auth0 🔸 Messaging & Notification Services: SES, SQS, SNS, EventBridge, AWS Chatbot 🔸 Storage & Content Delivery: S3, Amazon Location Service, Route 53, CloudFront 🔸 Networking & Security: VPC, IAM, KMS, Parameter Store 🔸 Monitoring & Data Analytics: CloudWatch, X-Ray, Athena, Amazon QuickSight 🟢 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐓𝐚𝐤𝐞 𝐭𝐡𝐞 𝐍𝐞𝐱𝐭 𝐒𝐭𝐞𝐩? Let's connect! I'm passionate about employing my expertise to drive your project to new heights. Send me a message to explore how we can achieve groundbreaking success together.

API Development
Amazon Web Services
TypeScript
JavaScript
API
Node.js
RESTful API
NestJS
ExpressJS
Serverless Computing
Back-End Development
DevOps
Solution Architecture
$50 hourly
Davi R.
- 5.0/5
- (4 jobs)
Hello! I'm Davi, a Smart Contracts Auditor at Hacken and co-owner of FreshCoins. My favorite technologies are: JavaScript, TypeScript, Solidity, React, React Native, NodeJS. As a freelancer dev I've been doing my job for 6 years. Some projects of my own: - FreshCoins.io (cryptocurrency hub) - Koinzaar (P2P cryptocurrency marketplace) - Spiry Capital Chatbots - Spiry Capital Dashboard - Log Nature (e-commerce) - Log Nature (ERP) - Bionote (blog/podcasts central) - Climar Brasil (ERP)

API Development
Blockchain
API Integration
Solidity
Node.js
JavaScript
React
React Native
$40 hourly
Lucas M.
- 5.0/5
- (10 jobs)
Lucas Manchine AI Product Manager | Full Stack Data Scientist | IoT Specialist Top Skills - GPT-4 - Python - Microsoft Power BI - Machine Learning (NumPy, SciPy, scikit-learn, XGBoost, LightGBM, PyOD) - Deep Neural Networks (TensorFlow, Keras, fast.ai) - Data Engineering (Python, Pandas, SQL, PySpark, Airflow, ElasticSearch) - DevOps (Git, Docker, AWS, GCP, Azure, Oracle, Linux) - Back-end Development (Python web frameworks, Restful APIs, Machine Learning pipelines) - Natural Language Processing (LLM, Audio, Text-To-Speech (TTS), Speech-To-Text (STT), natural syntetic voice) Languages - English (Professional Working) - Português (Native or Bilingual) Certifications - Faça Acontecer na Prática (Leadership Course) - Deep Learning Specialization - Secure & Private AI Facebook's Scholarship - Improving Deep Neural Networks: Hyperparameter tuning, Regularization and Optimization - Structuring Machine Learning Projects Summary Passionate about creating a better world through technology, I bring 5+ years of experience in Python, AWS, and C++ development. With a deep interest in AI, I've spent 2+ years honing my skills in GPT & Large Language Models (LLM). I've also explored IoT with a focus on AgriTech, leaving a strong impact on the mango export sector in Brazil. Here's a look at my career aspirations, ranked in order of preference: 1. AI Product Manager: Leveraging my experience in GPT, Python, and IoT, I am eager to steer the strategic direction of AI products, ensuring they align with business and user needs. 2. Solution Architect: My strong foundation in programming languages and AWS is an asset for designing system architectures that drive business value. 3. AI Ethics Advisor: Inspired by the mission to make the world a better place, I am interested in shaping ethical AI strategies and practices. 4. CTO/Technical Lead in a Startup: Drawing from my entrepreneurial journey and versatile tech skills, I'm ready to lead innovative startups on their journey to success. 5. Data Infrastructure Engineer: With extensive experience in Linux, infrastructure, security, and AWS, I am well-equipped to build and manage big data infrastructures. 6. Freelance Tech Consultant: Although this ranks last on my list, I remain enthusiastic about the possibility of guiding businesses in their tech ventures – from website setup to leveraging AI and IoT. Experience ^-^ NLP and Speech Engineer - January 2023 - Present (5 months) - United States ~-~ Working with transforming audio from calls into insights and better management of people. - Upwork ^-^ Adviser & Co-Founder - November 2021 - February 2023 (1 year 4 months) - Brasília, Federal District, Brazil ^-^ President and Co-Founder - July 2020 - November 2021 (1 year 5 months) - Federal District, Brazil ~-~ Junior Enterprise of Data Science and AI. - DatAí ^-^ Founder - October 2020 - December 2022 (2 years 3 months) - Brazil - Agriculture Startup ^-^ Research Scholarship Holder - May 2021 - February 2022 (10 months) - Brasília, Distrito Federal, Brasil ~-~ Developed a web platform using Python, Docker, Linux, Webserver, VPS and OSINT projects to monitor people's behavior on social networks, processes and companies. Also made an algorithm to scrape all data published in Diário Oficial da União (DOU), the brazilian National Press. - Universidade de Brasília

API Development
Data Analysis
Docker Swarm Mode
Analytics
Data Visualization
Business Intelligence
Predictive Analytics
Python
Natural Language Processing
SQL
Machine Learning
Data Science
Deep Learning
ETL Pipeline
Docker
$37 hourly
Thiago T.
- 5.0/5
- (5 jobs)
I am a self-taught full-stack developer, teamwork very easily. Working with technology for about 14 years as a software developer, software architect, tech leader, and software specialist.

API Development
ASP.NET Web API
NodeJS Framework
JavaScript
.NET Core
Apache Kafka
RabbitMQ
Spring Boot
C#
Microservice
ASP.NET MVC
.NET Framework
Entity Framework
Microsoft SQL Server
MongoDB
$36 hourly
Rafael M.
- 5.0/5
- (3 jobs)
I am a software developer with 17 years of experience, using technologies such as: Delphi, PHP, Postgres, Firebird, GiT, SVN. I've also worked with Dataflex, Visual DataFlex and PowerBuilder, but in the last 10 years, I've been more focused on the technologies of Embarcadero Delphi (7, 10.x), in particular, development of API Rest application servers with technologies such as Datasnap and TMS Aurelius (ORM). Of these projects, 15 years of management were for projects in the management area public, in particular: Accounting, Tax, Legal (Attorneys). I also worked on parallel projects, in the areas of industry and business. Competence in managing the software development cycle, identification of need or scope, survey requirements, software architecture, diagram design streams(Bpmn), code, application testing and documentation technique. In recent years, I have been working especially with software integration using RestFull tecnology

API Development
SQL
JSON
XML
SOAP
OAuth
Delphi
HTML
RESTful API
PostgreSQL
$70 hourly
Caio E.
- 5.0/5
- (12 jobs)
I am a software engineer experienced in: * Ruby on Rails (Ruby) * Phoenix (Elixir) * PostgreSQL * ElasticSearch * React * jQuery * MVC pattern * Code patterns * Webservices using JSON * Background jobs using Sidekiq and Resque * Planning and execution of relatively large database migrations on Rails projects * Unit and integration testing * Version Control: Git I'm always looking for improving my current skills and learning: new technologies, programming languages and spoken ones as well.

API Development
Phoenix Web Framework
Back-End Development
Elasticsearch
Vue.js
Ruby on Rails
Elixir
Ruby
React
TypeScript
Redis
PostgreSQL
JavaScript
$50 hourly
Daniel M.
- 4.8/5
- (3 jobs)
Hello, my name is Daniel I live in Brazil and work as a freelancer. I develop apps with Bubble.io because I believe that application development can be fast and easy. Our clients can not wait, so the tools to develop their solutions need to provide an environment where it's possible to quickly implement the ideas and release an MVP. With this concept in mind, I started developing applications using no-code and low-code approaches. For the last two years, I have been working as a web developer at Bubble.io. So I think I have the basic knowledge needed to help you develop your project.

API Development
API
API Integration
Java
Web Design
Bubble.io
Back-End Development
Low Code & RAD Software
Database
JavaScript
Front-End Development
Web Application
CSS
HTML
$40 hourly
Diego M.
- 5.0/5
- (4 jobs)
I am a self-taught Web Scraping Specialist and Data Engineer with a robust background in environmental engineering. My transition into the tech industry was driven by a personal health challenge that led me to rediscover my passion for technology and data. As a former lead developer at OmniaSEO, I have honed my skills in developing and maintaining web scraping tools, ensuring data accuracy, and integrating data into marketplace platforms. With proficiency in a wide array of technologies and tools, including Python, JavaScript, Scrapy, BeautifulSoup, Selenium, Puppeteer, and more, I excel in creating efficient and scalable data solutions. My freelance projects consistently earn 5-star ratings, reflecting my commitment to quality and client satisfaction. Key Skills: Programming Languages: Python, JavaScript, TypeScript Frameworks and Libraries: Scrapy, BeautifulSoup, Selenium, Puppeteer, Requests, Pandas, NumPy, Matplotlib, React, Node.js, Express, Regex, CrewAI and Databases: MySQL, PostgreSQL, MongoDB, SQLite, Redis Integration and APIs: REST APIs, GraphQL, Webhook Infrastructure and DevOps: Docker, Docker Compose, Kubernetes, VPS, Traefik, CI/CD Cloud Services: AWS, Google Cloud Automation Tools: n8n, Zapier, Airflow Operating Systems: Linux (Ubuntu, CentOS), Windows, MacOS Development and Management Tools: Visual Studio Code, Jupyter Notebook, Git, GitHub/GitLab, Jira/Trello, Postman Other Tools: Mailcow, Langflow, InVideo AI, CoquiTTS, AllTalk TTS Professional Experience: Lead Developer at OmniaSEO: Coordinated web scraping and SEO projects, developed scraping tools, ensured data accuracy, and implemented scalable data storage solutions. Freelance Web Scraping Specialist: Executed various web scraping projects, maintained 5-star ratings, developed custom scripts, and integrated APIs and webhooks for automation. Personal Journey: My journey into development began while working in environmental engineering, where I was involved in the collection and resale of used cooking oil. After contracting endocarditis, I re-evaluated my career path and discovered my passion for technology, leading me to become a self-taught developer. This decision allowed me to combine my analytical skills with my love for innovation, resulting in a fulfilling career in web scraping and data engineering. Feel free to connect with me to discuss opportunities, share insights, or explore potential collaborations.

API Development
Puppeteer
React
TypeScript
Web Development
Scriptwriting
Software Development
Bot Development
Scraper Site
System Automation
Web Application
Node.js
Automation
Python
Web Crawling
$60 hourly
Kairon V.
- 5.0/5
- (4 jobs)
I'm a software developer with experience in building websites and APIs, using python and javascript.

API Development
Amazon Web Services
React
Front-End Development
Cypress
Ruby on Rails
Django
API
CSS 3
PostgreSQL
Ruby
CSS
JavaScript
Python
$40 hourly
Igor M.
- 5.0/5
- (5 jobs)
𝐇𝐨𝐰 𝐜𝐚𝐧 𝐈 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮? 𝑾𝒐𝒓𝒌𝒊𝒏𝒈 𝒘𝒊𝒕𝒉 𝒎𝒆, 𝒚𝒐𝒖 𝒘𝒊𝒍𝒍: ⭐ Ensure that your user has an application that runs smoothly and is not constantly plagued by bugs ⭐ Have clean code. Easy to maintain, modify and scale. No more starting the project at a great speed and after a while spending more time correcting code than writing new features ⭐ Receive constant updates. You will always know what I did yesterday, today and what I'm going to do tomorrow ⭐ 𝑺𝑨𝑽𝑬 𝑴𝑶𝑵𝑬𝒀 by working with someone who doesn't screw around just to get more paid hours. I have zero interest in making the project take longer than necessary to deliver it with quality. ℹ️ ℂ𝕙𝕖𝕔𝕜 𝕠𝕦𝕥 𝕞𝕪 𝕠𝕟𝕝𝕚𝕟𝕖 𝕔𝕦𝕣𝕣𝕚𝕔𝕦𝕝𝕦𝕞/𝕡𝕠𝕣𝕥𝕗𝕠𝕝𝕚𝕠 𝕨𝕖𝕓𝕤𝕚𝕥𝕖: igorcurriculum.com 👨‍💻 𝗛𝗲𝗹𝗹𝗼. 𝗜'𝗺 𝗜𝗴𝗼𝗿, 𝗮 𝗳𝗹𝘂𝘁𝘁𝗲𝗿 𝗮𝗻𝗱 𝗱𝗮𝗿𝘁 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘀𝘁 𝘐 𝘩𝘢𝘷𝘦 𝘢𝘭𝘸𝘢𝘺𝘴 𝘣𝘦𝘦𝘯 𝘱𝘢𝘴𝘴𝘪𝘰𝘯𝘢𝘵𝘦 𝘢𝘣𝘰𝘶𝘵 𝘬𝘦𝘦𝘱𝘪𝘯𝘨 𝘶𝘱 𝘸𝘪𝘵𝘩 𝘵𝘦𝘤𝘩𝘯𝘰𝘭𝘰𝘨𝘺 𝘯𝘦𝘸𝘴 𝘢𝘯𝘥 𝘮𝘢𝘳𝘬𝘦𝘵 𝘵𝘳𝘦𝘯𝘥𝘴. 𝘐𝘯 𝘵𝘩𝘢𝘵 𝘴𝘦𝘯𝘴𝘦, 𝘸𝘩𝘦𝘯 𝘐 𝘴𝘢𝘸 𝘍𝘭𝘶𝘵𝘵𝘦𝘳 𝘪𝘯 𝘚𝘦𝘱𝘵𝘦𝘮𝘣𝘦𝘳 2019 𝘢𝘯𝘥 𝘢𝘭𝘭 𝘪𝘵𝘴 𝘱𝘰𝘵𝘦𝘯𝘵𝘪𝘢𝘭, 𝘐 𝘴𝘰𝘰𝘯 𝘬𝘯𝘦𝘸 𝘵𝘩𝘢𝘵 𝘵𝘩𝘢𝘵 𝘸𝘢𝘴 𝘵𝘩𝘦 𝘧𝘶𝘵𝘶𝘳𝘦 𝘢𝘯𝘥 𝘐 𝘴𝘵𝘢𝘳𝘵𝘦𝘥 𝘶𝘴𝘪𝘯𝘨 𝘵𝘩𝘦 𝘵𝘦𝘤𝘩𝘯𝘰𝘭𝘰𝘨𝘺 𝘢𝘵 𝘢 𝘵𝘪𝘮𝘦 𝘸𝘩𝘦𝘯 𝘧𝘦𝘸 𝘶𝘴𝘦𝘥 𝘪𝘵, 𝘵𝘩𝘶𝘴 𝘣𝘦𝘪𝘯𝘨 𝘢𝘯 𝘦𝘢𝘳𝘭𝘺 𝘢𝘥𝘰𝘱𝘵𝘦𝘳. 𝘚𝘪𝘯𝘤𝘦 𝘵𝘩𝘦𝘯, 𝘐'𝘷𝘦 𝘧𝘰𝘤𝘶𝘴𝘦𝘥 𝘰𝘯 𝘴𝘱𝘦𝘤𝘪𝘢𝘭𝘪𝘻𝘪𝘯𝘨 𝘮𝘺 𝘬𝘯𝘰𝘸𝘭𝘦𝘥𝘨𝘦 𝘪𝘯 𝘵𝘩𝘦 𝘥𝘢𝘳𝘵 𝘭𝘢𝘯𝘨𝘶𝘢𝘨𝘦 𝘢𝘯𝘥 𝘶𝘯𝘥𝘦𝘳𝘴𝘵𝘢𝘯𝘥𝘪𝘯𝘨 𝘩𝘰𝘸 𝘵𝘩𝘦 𝘍𝘭𝘶𝘵𝘵𝘦𝘳 𝘧𝘳𝘢𝘮𝘦𝘸𝘰𝘳𝘬 𝘢𝘯𝘥 𝘪𝘵𝘴 𝘮𝘢𝘪𝘯 𝘢𝘱𝘪'𝘴 𝘸𝘰𝘳𝘬 𝘶𝘯𝘥𝘦𝘳 𝘵𝘩𝘦 𝘩𝘰𝘰𝘥. 📈 𝐓𝐡𝐞 𝐦𝐚𝐢𝐧 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐈 𝐮𝐬𝐞 𝐭𝐨 𝐞𝐧𝐚𝐛𝐥𝐞 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐬𝐜𝐚𝐥𝐚𝐛𝐢𝐥𝐢𝐭𝐲: ✅ Micro-Frontend for splitting tasks in bigger groups ✅ 100% Test coverage for quality assurance ✅ Create Internal Packages for better componentization ✅ Clean Architecture for easy to work project structure ✅ Efective Documentation for new dev's faster introduction ✅ Multithreads for ui perfomance ➕ Among the other intermediate-advanced topics that I know are: • Theme Data manipulation • Deep knowledge in Element/Render tree • Widget lifecycle management • Use of Flutter DevTools to find performance issues and fix them • Implicit and explicit animations • Direct canvas drawing • Effective dart documentation • Create dart CLI tools • Flutter Web SEO • Deep knowledge in Element/Render tree • Internationalization • Dependency Injection • Test presets and default mocks • Golden tests - 𝑪𝒍𝒊𝒆𝒏𝒕 𝒆𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆 𝒊𝒔 𝒎𝒚 𝒏𝒖𝒎𝒃𝒆𝒓 𝒐𝒏𝒆 𝒑𝒓𝒊𝒐𝒓𝒊𝒕𝒚 So let me help you add value to your client. 📩 For that, please shoot me a message and let's talk just to ensure I will be a great fit for you

API Development
In-App Purchases
Flutter
Dart
Social Media Account Integration
Mobile App Development
Agile Project Management
Scrum
Mobile Development Framework
Flutter Stack
Agile Software Development
Unit Testing
$38 hourly
Luis Gustavo S.
- 5.0/5
- (3 jobs)
I am a software developer with a strong background in building, maintaining and deploying enterprise applications, primarily focused on Java development, RESTful and GraphQL APIs. I bring hands-on experience across all phases of the software development lifecycle (SDLC), from gathering requirements and designing solutions to deploying and supporting applications in production. I have great expertise in technologies such as AWS, Kafka, Spring Boot, Spring Data, Hibernate and Jenkins. My focus is on creating scalable, efficient systems while ensuring alignment with both functional and non-functional requirements. In addition to my technical skills, I have taken on leadership roles, guiding teams on best practices in code quality, system design, and agile methodologies. My goal is to deliver high-quality software solutions that drive value and efficiency to the client.

API Development
Apache Maven
API
Unit Testing
J2EE
Integration Testing
CI/CD
API Integration
Apache Kafka
Spring Boot
Docker
Spring Data
Java
SQL
Jenkins
$32 hourly
Filipe M.
- 5.0/5
- (3 jobs)
Hi! My name is Filipe Muniz.I'm a Senior Game Programmer I have 7+ years under my belt in the game industry. About 5 years of Unity and a 2+ years in Unreal Engine. I've worn many hats, primarily as Lead Programmer. My journey has also seen me delve into game design, level design, and UX/UI design. But in those other situations, I was working as a solo dev. I also developed and maintained automated testing and a few custom editor tools to help development. And I also worked with animation editing inside Unreal, particularly with ALS v4.

API Development
Unreal Engine
Unity
Unit Testing
UML Diagram
API
RESTful API
JavaScript
C#
C++
CSS
HTML
RESTful Architecture
Angular
$75 hourly
Andre Z.
- 5.0/5
- (1 job)
As a seasoned Product Manager with 6+ years of experience in finance and crypto, I bring a unique blend of technical expertise and client-centric approach to drive product innovation and success. With a background in financial data analysis, programming (Python, JavaScript, SQL) and business development, I'm the perfect bridge between technology and business. Here's what I can offer: - Technical expertise: programming skills in Python, JavaScript, SQL, and understanding of blockchain architectures - Client-centric approach: experience in client-facing roles and product-led discovery interviews to understand customer needs and pain points - Product innovation: proven track record of developing successful products and platforms that meet customer expectations - Strong communication skills: ability to effectively communicate with cross-functional teams, stakeholders, and clients to drive product vision and strategy If you're looking for a product manager who can drive transformational growth, improve customer satisfaction, and deliver results-driven solutions, let's connect! I'm excited to collaborate with forward-thinking companies as a freelancer.

API Development
Business Analysis
Data Analysis
API
React
JavaScript
Python
Blockchain, NFT & Cryptocurrency
Agile Project Management
Scrum
Product Analytics
Finance
Blockchain
Cryptocurrency
Product Management
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