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Urgently seeking a developer for immediate start to integrate our Hungarian invoice software with our German system. The goal is to create a fully functional API connection compliant with Hungarian laws.
Project ID: 38844111
77 proposals
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Active 1 yr ago
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77 freelancers are bidding on average €323 EUR for this job

Hello, I understand the urgency of your project to integrate the Hungarian invoice software with your German system. My expertise in API development and integration will ensure a seamless connection that adheres to Hungarian regulations. I have extensive experience in working with technologies like JavaScript, PHP, and MySQL, which are essential for this integration. By focusing on creating a fully functional API, I will ensure that both systems communicate effectively while maintaining data integrity and compliance. I am ready to start immediately and bring this project to completion swiftly and efficiently. What specific features do you want the API to support for the integration of both invoice systems? Thanks, Muhammad Awais
€400 EUR in 14 days
9.2
9.2

Hi there, ★★★ RESTful API Integration & Development Expert ★★★ 6+ Years of Experience ★★★ I've read requirements and ready to work on your project. I provide the services for the following type of APIs: ✔ REST ✔ XML ✔ SOAP ✔ JSON Expertise: ✔ Microservices ✔ Web Applications ✔ Serverless ✔ AWS ✔ Third-party APIs ✔ Payment Gateways ✔ Webhooks Stack: NodeJS, PHP, .NET, Python As the requirements on project are not complete and need discussion so i placed tentative bid. To provide you the best quote, let's have a chat! Best Regards, TechPlus Team
€400 EUR in 7 days
8.4
8.4

Hello, I'd be glad to develop the connection between the two APIs. Looking forward to chatting with you soon for more details. Best regards. Lyes.
€400 EUR in 3 days
8.2
8.2

As an experienced developer at Web Nautical, I am well-versed in the utilization of APIs and have a deep understanding of HTML, MySQL, PHP, and software architecture; all crucial skills for completing this project successfully. Our team has a track record of creating compliant and robust API connections that adapt to specific country regulations - a crucial requirement for your Hungarian-German integration. With 25 skilled professionals from various disciplines working together under Web Nautical's banner, we have mastered the art of collaboration and problem-solving. The integration between your Hungarian and German invoice software will demand careful attention to detail and an efficient understanding of the differing legal requirements. Our collective skill set and prior knowledge in similar projects make us the ideal fit for achieving a fully-functional, seamless connection between both systems. Moreover, my zest within this profession doesn't end with coding; it extends to developing long-lasting relationships with clients. My aim is to form a solid partnership with you, ensuring clear communication, on-time delivery, and most importantly - client satisfaction. Choose me and together we’ll ensure your API integration is completed on schedule without any hindrance on your Hungarian- German invoicing process!
€400 EUR in 3 days
8.3
8.3

sure i can start right now
€300 EUR in 2 days
7.8
7.8

Hi, my name is Puru. I read your `Urgent API Integration Between Hungarian and German Invoice Software` project description carefully before bidding. I got what you need and ready to go ahead as soon as we can clarify further project details. With over 8 years of expertise in PHP, JavaScript, Software Architecture, MySQL, HTML, API, API Development and API Integration, I'm confident in delivering a tailored software solution to meet your needs. As a top 1% freelancer, I've consistently achieved 5-star ratings from 100+ clients, reflecting my commitment to quality and client satisfaction. Check out my portfolio: https://www.freelancer.com/u/Guptapuru304 to see similar examples of my work. Kindly get back to me if you wish to proceed with a top-rated and reliable partner here. I deliver best quality at a reasonable price, and I am open for longterm partnerships. Kind Regards, Puru
€800 EUR in 8 days
7.6
7.6

HI! I am an expert web programmer. I have a lot of work experience in Laravel, Codeigniter, PHP, Wordpress, JavaScript, HTML, Vuejs, Reactjs, React Native, and MySQL. I can start right away. I want to discuss this project in detail. Please contact me to discuss more regarding this project. For more details Chat with me
€300 EUR in 2 days
7.5
7.5

Hello handsome brother As a seasoned software developer with over years of experience in API integration and back-end development, I'm confident in my ability to deliver a seamless and legally compliant integration between your Hungarian and German invoice software systems. My expertise lies in . I have a proven track record of delivering high-quality solutions under tight deadlines, prioritizing clear communication and client satisfaction throughout the process. I understand you require urgent integration between your Hungarian and German invoice software platforms. The primary goal is to create a fully functional API connection that adheres to all relevant Hungarian legal requirements for invoice data exchange. This includes accurate data transfer, ensuring data integrity, and potentially handling specific tax and compliance regulations. My expertise in REST API development, database integration (mention specific databases like MySQL, PostgreSQL, etc.), and experience with directly addresses your project needs. I possess a strong understanding of data security and will ensure the API connection is robust and secure. My experience with allows me to build a solution compliant with Hungarian law. Depending on your specific systems, I will utilize appropriate technologies such as . I am proficient in using version control systems like Git and employing rigorous testing strategies to ensure a stable and reliable API. I am available to begin immediately. I would appreciate the opportunity to discuss the project details further with you, including a detailed specification of your existing systems and your specific requirements for the API integration. This will allow me to provide a more precise timeline and cost estimate. I guarantee high-quality code, timely delivery within the agreed-upon timeframe, and proactive, transparent communication throughout the entire project. I am readily available via . I look forward to hearing from you soon and assisting you in resolving this urgent requirement. Lê Hương
€274 EUR in 7 days
6.6
6.6

Hello, I am writing to express my interest in the project you've outlined. With 8 years of experience as a professional software developer specializing in Python, I possess a strong background in automating processes and manipulating data. I am confident that my skills align well with the requirements of this project. In addition to my technical expertise, I am deeply motivated to deliver high-quality results within the specified timeframe. I am eager to collaborate with you and am open to discussing the project terms and establishing a plan that meets your needs. Please feel free to reach out to me with any questions or for further clarification. Thank you for considering my proposal. Sincerely, Fatima
€500 EUR in 7 days
6.5
6.5

With over 8 years of diverse web development experience and a reputation for being detail-oriented, I am confident in my ability to tackle this urgent task and triumphantly integrate your Hungarian and German invoice systems. Having worked as an IT Manager I understand the high stakes and strict adherence to deadlines inherent in projects of this nature. Throughout my career, I have honed my skills in HTML, JavaScript, and PHP among others which are all incredibly relevant to the successful creation of a fully compliant API connection. My understanding of Hungarian laws surrounding invoices further lends itself to my suitability for this project. Given the sensitive nature of financial data, it is crucial that an API connection not only integrates seamlessly but also respects local regulations. In sum, employing me offers you many advantages: my diverse skill set that includes WordPress, Woocommerce, CSS and more, my passion for developing clean, efficient code carefully molded throughout my expansive work history and most significantly, my proven ability to deliver promptly without compromising quality. Resolving this project will mean more time-efficient invoicing processes between Hungary and Germany; so let's get started!
€300 EUR in 5 days
6.4
6.4

Hello there, I will create a fully functional API connection between your Hungarian invoice software and the German system, ensuring compliance with Hungarian regulations. The integration will be efficient and accurate, allowing your systems to work together flawlessly. With solid experience in API development and system integrations, I have successfully delivered similar projects requiring attention to legal compliance and technical precision. Let’s discuss your project further and get started right away. Kind Regards, Arbaz A.
€350 EUR in 7 days
6.2
6.2

It is conceivable that the integration of the Hungarian and German invoice software systems can be achieved through a meticulous approach that ensures compliance with Hungarian legal requirements. The process of integrating the Hungarian and German invoice software systems can be streamlined by focusing on the specific API requirements of each system. By understanding the intricacies of both systems, a seamless connection can be established to facilitate efficient data transfer between the two platforms. 1. Have you identified any potential challenges in the integration process that may require special attention? 2. How soon are you looking to have the API integration completed to meet your urgent needs? What would be the next steps in initiating the API integration process and how can we establish effective communication to ensure a successful collaboration?
€300 EUR in 4 days
5.8
5.8

Hello I am web expert I can develop well maintained API using Larvel, Custom PHP or in wordpress custom plugin development . Thank you
€270 EUR in 3 days
5.7
5.7

I am a positive, enthusiastic and competent Web Developer who, over the years, has built up a diverse range of skills, qualities and attributes that guarantee I will perform highly in this role. I have extensive experience working both alone and as part of a team on often time-sensitive, challenging web development projects that require outstanding creative and technical capabilities and the ability to ensure all work is optimized across a wide range of platforms. I take my work as a Web Developer seriously and this means I always ensure my skills are kept up to date within this rapidly changing industry. Also have experience in front-end web development code. I perform work in quick terms and with great results. My clients are always satisfied because their business has success. If you are interested in my proposal, please contact me as soon as possible.
€300 EUR in 7 days
5.8
5.8

With my experience in web development and software integration, I am confident I can create a robust API connection between your Hungarian and German invoice software that fully complies with Hungarian laws. My skills in HTML, JavaScript, MySQL, PHP, and Software Architecture equip me to tackle complex integration projects such as this with ease. But it's not just about the technical aspects. My project management and organizational skills ensure that I can deliver this integration on time, even under tight deadlines. And as a firm believer in effective communication, I am always open to discussions and updates as the project progresses. In conclusion, choosing me for this project is choosing quality and efficiency. While my technical expertise sets a solid foundation for success in API integrations, it is my meticulous approach to situation analysis, problem-solving capability, and proactive communication that ensure I provide lasting solutions while incorporating every important detail unique to your business needs. Let's work together to make this seemingly challenging operation a seamless one!
€300 EUR in 7 days
5.8
5.8

Hi, I'm interested in your requirements. I have rich experience in web development using PHP, HTML, JavaScript, jQuery & MySQL - Codeigniter & Laravel Let's have a chat for more details. Thanks!
€300 EUR in 4 days
5.7
5.7

As an API integrator with extensive capabilities in Hungary and Germany's invoice software, I am more than equipped to address the specifics of your project. Over the years, I have built a solid foundation in languages like PHP, HTML, and JavaScript which would ease up the integration process significantly. Not only am I familiar with Hungarian invoicing regulatory rules but also proficient in databases such as MySQL and PostgreSQL, crucial for your project. Moreover, my experience in creating RESTful APIs can greatly facilitate the creation of a fully operational API connection necessary to synchronize your systems. Additionally, you’ve got to know that when it comes to implementing technical functionalities to fit German laws, I don’t cut corners. Furthermore, I’m a meticulous developer. This means delivering an error-free product and prioritizing client satisfaction come above all else for me. You will get quality work within deadline. All this considered, hiring me ensures a reliable and secure integration of your invoice software that remains compliant with both Hungarian and German regulations. Let's discuss your project details further to get the ball rolling!
€300 EUR in 7 days
5.9
5.9

Yes i will do this job perfectly !! Expert in API !!! I placed bid after checked your requirement if you want you can ask me any question regarding your requirement. And don't worry about work. first check my work if you happy Then pay me.
€200 EUR in 1 day
5.1
5.1

Hi client, great to meet you. I read your job description, and I understand you are looking for an expert who is well-versed full stack especially Api integratoin. So I have enough knowledge on how to edit the code and create varibale deliveries clients wish. As a TOP software engineer, I am very confident in this project. My core skills for this project are ✅ PHP and its frameworks such as Yii, Laravel, Symfony, WordPress ✅ Java&JavaScript, HTML5, CSS3, SCSS, SASS ✅ MySQL, PostgreSQL, MongoDB, MS Access ✅ Cloud computing such as AWS, Azure DevOps, Google Cloud ✅ API integration - Amazon, eBay, Oracle, Payment integration, Social API, Google Map,CMS etc ✅ GitHub, Agile, Slack, Trello I have a very responsible attitude and I am a dedicated guy who is hard working. And I am full-time available in your time zone . I like to communicate freely with team members and my English conversation skill is very helpful to speed up, improve the quality of the project. I am a new one in Upwork, but it is not so important. I have full experience with full-stack development of Web/Android/iOS/Desktop applications for more than 8 years. I am very proud of my work. Reply to this message and let me know when would be a good time for us to connect this week. Hope to work on your project. Best regards
€350 EUR in 7 days
5.3
5.3

Hey, Thanks for your post. I'v read your description carefully. I have relevant experience I can help. some of my skills are: PHP, HTML, MySQL, JavaScript and Software Architecture Hope you're having a nice day my friend :)
€400 EUR in 5 days
4.7
4.7

Möllersdorf, Austria
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€30-250 EUR
€30-250 EUR
₹12500-37500 INR
$10-30 USD
₹400-750 INR / hour
$250-750 USD
$30-250 USD
₹12500-37500 INR
$10-30 USD
₹1500-12500 INR
£750-1500 GBP
$250-750 USD
$10-80 USD
$250-750 USD
$10-30 USD
₹1500-12500 INR
$250-750 USD
₹12500-37500 INR
₹12500-37500 INR
$2-8 USD / hour
£5-10 GBP / hour
$30-250 USD