Hire the best API Integration Freelancers in Poznan, PL

Check out API Integration Freelancers in Poznan, PL with the skills you need for your next job.
Clients rate API Integration professionals
Rating is 4.7 out of 5.
4.7/5
based on 144 client reviews
  • $33 hourly
    Hello!👋 Welcome to my world of Automation and Integration! My passion is creating 👨🏻‍💻 seamless workflows for multi-channel campaigns and automation, including email, web, social media, SMS, and more, that help you reach, engage, and convert your audience more effectively than ever 📶 At the same time, my expertise extends beyond mere integration – I delve deep into CRM customization, ensuring that your system aligns perfectly with your unique business processes and objectives. Whether you're aiming to automate repetitive tasks, integrate diverse systems seamlessly, or optimize your sales and marketing strategies, I provide comprehensive solutions designed to elevate your business to new heights 🧗🏾 My 🔝 Skills: ✅ Make.com (ex-Integromat), Zapier ✅ HighLevel ✅ Airtable, SmartSuite ✅ ActiveCampaign ✅ ClickUp ✅ Pipedrive, Hubspot Driven by a passion for excellence, I prioritize clear communication, timely delivery, and ongoing support to ensure your automation initiatives yield tangible results. By partnering with me, you gain access to top-tier technical expertise and a dedicated ally committed to your success. Ready to unlock the full potential of automation and transform your business? Reach out today to discuss how I can tailor my services to meet your needs and propel your organization forward.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    No-Code Development
    QuickBooks Online
    Adalo
    Pipedrive
    ClickUp
    ChatGPT
    Airtable
    HighLevel
    Automation
    Make.com
    HubSpot
    Marketing Automation
    ActiveCampaign
    Zapier
  • $55 hourly
    I am a web application designer and developer with experience in creating websites for small and medium-sized businesses. My specialties include e-commerce and B2B, as well as creating tools like CMS, CRM, ERP, and digital marketing. My technical skills include programming languages such as PHP, mySQL, HTML, JavaScript, and CSS, as well as frameworks like jQuery, Bootstrap, and React. I also have experience with servers, specifically VPS, and databases like MySQL and MSSQL. I understand the importance of proper database design, data warehousing, data aggregation, data mining, and web services in order to create efficient web applications. My expertise in web application frameworks and tools includes a deep understanding of popular open-source CMSs and e-commerce platforms like WordPress, PrestaShop, OpenCart, and others. I am also familiar with DevExtreme and Ant Design Components in React technology. I am able to use them for data visualization - charts, data grid, and others, as well as for building forms that communicate with the backend. I am also able to add new functionality if needed. I manage projects from start to finish and prioritize consistent communication throughout the process to ensure a successful outcome.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Software Design
    React
    Database Design
    Software Development
    Web Page
    Bootstrap
    jQuery
    Responsive Design
    MySQL
    WordPress Bug Fix
    SCSS
    JavaScript
  • $80 hourly
    With over six years of experience in software engineering, my primary focus is on resolving client challenges and delivering substantial business value. Specializing in healthcare and sales-automation projects, I use Ruby on Rails and React JS not just as technologies, but as tools to craft solutions that significantly enhance operational efficiency and user engagement. Project Highlights: 🔹 COVID-19 Vaccination Passport Platform: I architected a system from scratch for a major German city, efficiently managing over 500,000 records, ensuring security, and maintaining high scalability during peak demands. 🔹 Telehealth Platform for Physiotherapists: I spearheaded a redesign of search functionalities, achieving a tenfold improvement in performance and markedly enhancing the user experience. 🔹 Marketing Automation Platform: My implementation of AI-driven messaging and data enrichment strategies has saved hundreds of hours and notably increased conversion rates. Client-Centric Benefits: 🌟 Problem Solving: I dive deep into each project's unique challenges, ensuring solutions are tailor-made to address specific needs. 🌟 Value Delivery: Each solution is designed to maximize ROI, whether through enhanced efficiency, increased security, or scalable growth. 🌟 Technology Expertise: As an official Ruby on Rails contributor, I bring authoritative knowledge and innovative practices to every project. Technical Skills Snapshot: 🛠 Languages: Ruby, JavaScript, SQL, Elixir, Python, HTML/CSS 🛠 Frameworks/Tools: Ruby on Rails, React, Docker, GitHub Actions, RSpec 🛠 Databases: PostgreSQL, MariaDB, Redis, AirTable Commitment to Excellence: My approach is rooted in a commitment to excellence, focused on delivering more than just functional software — I strive to enhance your business outcomes significantly. My expertise as a Ruby on Rails contributor ensures that I am equipped with cutting-edge solutions to advance your objectives.
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    Airtable
    RubyMine
    IT Consultation
    Ruby on Rails Stack
    Database Integration
    Ruby on Rails
    JSON API
    RESTful API
    Instagram API
    Google APIs
    API Development
    API Testing
    Ruby
    JavaScript
  • $50 hourly
    Having 8 years of experience in Salesforce project implementation in different domains, I can suggest the best solution for your needs in Sales / Service Clouds. In addition, I would take care of your customers and partners, because I have the skill to develop Salesforce Experience Cloud portals. Over the past 3 years of project management and solution architecture experience, I have learned to avoid writing code that declarative programming can handle. Before joining the dark side of Salesforce I dealt with Java Enterprise for non-profit organizations. I like reading IT blogs and learning new technologies and programming languages. So I'm always up to date with the latest innovations in software solutions. Also, I'm a huge fan of mountain bikes ;)
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Salesforce Sales Cloud
    Salesforce CRM
    Salesforce Lightning
    Salesforce App Development
    Salesforce Service Cloud
    Customer Relationship Management
    Apex
    API
    Database Architecture
  • $25 hourly
    Hello there! You’re in the right place! I work with leading IT companies, start-ups, and growing businesses to help them achieve their goals in their projects. I help my clients with: Python, Web Scraping, Selenium, Parsing, Databases (PostgreSQL), and Back-End development in general. But it's not the limit at all! While working with me, you will get rid of spaghetti-code and great communication and all responses in the 24-hour window and get your job task done. Hope to hear from you, Matvey Fedosenko
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Appium
    Selenium
    Web Scraping
    PostgreSQL
    Python
  • $40 hourly
    Hello, I am a senior Full Stack developer with over 7 years of experience specializing in Django and MERN stack applications. I have worked on various projects, from small-scale applications to large-scale applications, which has given me valuable experience in project management, software architecture, and software development life cycle methodologies. My goal is always to keep them satisfied and happy with the work I do. I am committed to using the latest best practices in web development to ensure that your website is easy to maintain, scale, and upgrade in the future. My technical skills: ✪ Front End : TypeScript, JavaScript(ES5 and ES6) React, Next.js, Redux, Thunk, Saga, Hooks, React Native Vue.js, Nuxt.js, Vuex, Vuetify jQuery, Bootstrap, MUI, Ant Design CSS, SCSS, Tailwind CSS, Chakra UI Three.js ✪Back End : Node.js and Express Framework Python, Django, Django REST framework, Flask Java, Spring GraphQL ✪Database MongoDB, Mongoose, MySQL, PostgreSQL, SQLite ✪DevOps Vercel AWS EC2, SES, or S3 services Nginx, Certbot, PM2 Ubuntu servers Github Docker Kubernetes Skaffold Cheers and looking forward to hearing from you
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    CI/CD
    Django Stack
    MongoDB Ops Manager
    React VR
    React Native
    MongoDB
    Python
    Django
    Next.js
    JavaScript
    React Bootstrap
    React
    Node.js
  • $45 hourly
    💡 Transforming your web ideas into reality with advanced Next.js and Supabase solutions! 𝗛𝗲𝗿𝗲'𝘀 𝗺𝘆 𝗮𝗽𝗽𝗿𝗼𝗮𝗰𝗵: 1️⃣ 𝗜𝗻𝗶𝘁𝗶𝗮𝗹 𝗔𝘀𝘀𝗲𝘀𝘀𝗺𝗲𝗻𝘁: Detailed discussion of your project requirements and how Next.js can meet them. 2️⃣ 𝗣𝗹𝗮𝗻 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Outlining a clear and actionable plan with timelines and expected outcomes. 3️⃣ 𝗗𝗲𝘀𝗶𝗴𝗻 & 𝗜𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝗼𝗻: Crafting engaging and intuitive designs, followed by high-fidelity prototyping. 4️⃣ 𝗖𝗼𝗱𝗲 𝗖𝗿𝗮𝗳𝘁𝗶𝗻𝗴: Developing the frontend and backend components seamlessly integrated through Supabase. 5️⃣ 𝗣𝗿𝗼𝗴𝗿𝗲𝘀𝘀 𝗥𝗲𝗽𝗼𝗿𝘁𝗶𝗻𝗴: Regular updates to ensure transparency and adaptability. 6️⃣ 𝗣𝗼𝘀𝘁-𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁: Continued support to handle any post-launch needs or enhancements. ✔️ 𝗖𝗼𝗺𝗽𝗲𝘁𝗲𝗻𝗰𝗶𝗲𝘀: Extensive knowledge in integrating complex APIs and handling data-driven applications. Interested in partnering together? Hit the 𝗜𝗡𝗩𝗜𝗧𝗘 or 𝗛𝗜𝗥𝗘 button to start our collaboration! 💼
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Firebase
    Supabase
    RESTful API
    Tailwind CSS
    CSS 3
    HTML5
    JavaScript
    React
    Next.js
  • $35 hourly
    ★ Discover Upwork’s 5 Star team of talented developers, app designers, and UI/UX masters ★ Unlock Your Brand’s Digital Intelligence with Data! Is your current web application failing to meet the high standards your business prides itself on? If it’s outdated, buggy, or hindering workflow, it could be time for some major enhancements.Why? Businesses that don’t adapt get left behind. Or maybe you are starting your New Business and need to kick it off with a stunning app? Do any of these ring true? - My current web app is slow and full of technical bugs - It distorts reports and has potential security issues - The UX is close to unusable in modern times - Critical business data is often missing or incorrect - My current team lacks the technical knowledge to make improvements We can improve your current web app and develop it into a cutting-edge tool for making data-driven decisions. Data is a precious resource for any business. And without it, you lose time, money, and affect your ability to make profitable decisions. You need an expert in implementing and developing Advanced Dedicated Web Applications that keep its users happy and leverages data for business growth. Working with me, you can expect a partnership that prioritizes your needs and elevates your brand. ✅ Unrivaled Client Care with a Perfect 5-Star Track Record ✅ High-Quality Code Free From Bugs ✅ Fully Custom Web App Development Services (no templates) ✅ Project Management & Quality Assurance Guaranteed! ✅ Extra-Mile Mentality to Meet All Your Needs ✅ We Work Closely With You to Bring Your Vision to Life ✅ Become Part of a Satisfied Client Pool That Keeps Coming Back Our services include: ● Software development ● Enterprise app development ● Digital transformation ● Product design ● UI/UX design ● MVP for Startups ● Team Augmentation To help you: ● Outgun competitors in your niche ● Create a healthier online ecosystem ● Boost team morale through efficiency ● Become a technologically-driven business ● Evolve into an industry-leading brand ● Remove the headache and reap the benefits of data and analytics We offer more than just application modernization. We’re your trusted advisors for creating a streamlined data ecosystem that fuels your brand in current times, from conception to design to finished product - and everything in between! ----------- As a Co-Owner of a Custom Web Apps Experts software house, I'm managing a team of 100% Professional & Innovative Programmers that live and breathe this industry. We’re always looking for cutting-edge, ambitious projects which allow the implementation of high-quality solutions. Choosing my team is no leap of faith - you’re betting on The Best! It’s why we’re able to create long-term partnerships with clients who consistently return and commission us for numerous projects. We believe your business deserves world-class innovation, reliability, and technical finesse. Read our reviews to discover how we’re helping scale businesses across the globe. ------------ Domains: ● MarTech ● EduTech ● MedTech ● FinTech ● Data-driven ● Data Visualisation ● Dashboard ● SaaS ● APIs ------------ Technologies: ● JavaScript ● React ● Vue ● Angular ● Node.js ● C# ● .NET ● Python● Django● Elasticsearch ● MongoDB ● MySQL
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Front-End Development
    Node.js
    Angular
    .NET Framework
    React
    Web Application
    PHP
    JavaScript
    Laravel
    Elasticsearch
    Business Intelligence
    Vue.js
    Data Visualization
    SaaS
  • $45 hourly
    I'm a CEO of Prixamo.com Software House company with over 9 years of experience in IT project development and management. I have experience and knowledge in many fields. I can help transform ideas into products and solutions that meet your needs. I believe in honest and open cooperation based on partnership, trust, transparency and satisfaction.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Plugin Development
    Technical Project Management
    API Development
    Tailwind CSS
    Bootstrap
    Nuxt.js
    CSS
    BootstrapVue
    Vuetify
    WordPress Plugin
    Vue.js
    Laravel
    PHP
    HTML5
  • $15 hourly
    As a skilled Salesforce Developer, I have experience in Salesforce development and proficiency in HTML5, CSS, Apex, LWC, Aura, Visualforce, SOQL, SOSL, Git, JavaScript. I am well-versed in Salesforce.com and Force.com, allowing me to develop custom solutions that meet the unique needs of each client. Throughout my career, I have honed my expertise in Salesforce development, and I possess an eye for performance, scalability, and future compatibility. I am committed to delivering solutions that are optimized for efficiency and long-term success. I have good analytical and problem-solving skills, and I am openminded and always seeking innovative solutions to complex problems. I have experience working with Sales Cloud and Service Cloud, and my technical expertise allows me to deliver solutions that exceed client expectations.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Salesforce Sales Cloud
    Salesforce CRM
    Salesforce
    Salesforce Lightning
    Apex
    Visualforce
    Web Development
    HTML
    Git
    JavaScript
    React
    Web Application
    CSS
  • $30 hourly
    ✔️ Welcome to my profile Here's Devin - a dedicated, focused & detail-oriented individual providing professional & friendly service to clients. I am a seasoned developer with over five years of experience developing cutting-edge web applications using the latest JavaScript frameworks. I have extensive knowledge of Vuejs, Nuxtjs, and Reactjs for front-end development and Firebase, Nodejs, and MySQL for back-end development. My expertise also extends to emerging technologies such as Blockchain, NFT, and Cryptocurrency. Throughout my career, I have developed numerous next-generation web applications that have gained popularity for their innovative design, scalability, and user-friendliness. I take pride in delivering high-quality solutions that exceed my client's expectations, and I am always seeking new and exciting challenges to further develop my skills. ✔️ AT RIGHT SPOT STRANGER I have been developing and designing platforms for over 5 years and can fulfill your needs ✅ Online presence for a business platform ✅ Have an idea you want to convert to reality ✅ Have a previous project that needs modification or design uplift ✅ Have custom requirements for a project ✔️I handle all kinds of Web Projects and have various experiences in multiple domains ✅ Business Brand Web presence ✅ E-commerce ✅ Learning Systems ✅ Custom Projects ✅ Blockchain, NFT, and Cryptocurrency. ✔️ Front End Technologies I work in ✅ Vuejs ✅ Nuxtjs ✅ Reactjs ✅ Nextjs ✅ Gatsby ✔️ Backend Frameworks I use ✅ Nodejs ✅ Flask ✔️Databases I work with ✅ Firebase ✅ MySQL ✅ MongoDB ✅ Firestore ✅ PostgreSQL ✅ MariaDB. Thank you for your time Regards: Devin
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Blockchain, NFT & Cryptocurrency
    MySQL
    Vuetify
    Firebase
    Next.js
    Vue.js
    Nuxt.js
    Firebase Cloud Firestore
    MongoDB
    React
    Node.js
    React Bootstrap
    PostgreSQL
    Figma
  • $25 hourly
    Welcome to my profile🙋‍♂️ I'm a seasoned full-stack developer with about 7 years of experience in React, Next, Node , Python, PHP, OpenAI My skills and expertise include: • FE: TypeScript, HTML, CSS, Bootstrap Framework: React, Next.js • Design System: TailwindCSS, Material UI (MUI), ChakraUI, ShadcnUI, Ant Design • BE: Node, Express, NestJS, Python, Django, Flask, FastAPI • DB: MongoDB, PostgreSQL, MySQL, Firebase • ORM: Typeorm, Prisma • Mobile App: React Native • API development and integration: RESTful, GraphQL, Axios, Fetch, Apollo Client, Apollo Server • Web design and prototyping: Figma, Adobe XD, Sketch • Testing and debugging: Jest, Enzyme, React Testing Library, Mocha, Chai, PyTest, Selenium • Deployment and hosting: Azure, Digital Ocean, Heroku, Netlify, AWS, Google Cloud Platform, Docker, Kubernetes, Vercel • Version control and collaboration: Git, GitHub, GitLab, Bitbucket • Task management: Jira, Slack, Trello, Asana, Oneclick, Clickup, Monday.com • OpenAI/ChatGPT integration I have successfully completed several projects involving: • Social Media Platform • e-commerce • Dashboard • Landing page • Healthcare SaaS platform I am always eager to learn new technologies and best practices to improve my skills and deliver high-quality results effectively and efficiently. I am also a good communicator and team player who can work well with clients and other developers. I am available to work on both short-term and long-term projects. Thank you for your consideration and I look forward to hearing from you soon.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    TypeScript
    LLM Prompt
    GitHub
    LangChain
    RESTful API
    ChatGPT
    OpenAI API
    Python
    Amazon S3
    Node.js
    Vue.js
    Tailwind CSS
    Next.js
    React
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