Creator of an SDK including API for Payment Terminal POS

When it comes to developing an SDK with API for a payment POS terminal like yours, I can offer you unparalleled expertise and experience. As the leader of a dedicated team of professionals, we have been working in the software development industry for years, honing our skills in languages such as C#, C++ and C Programming, all of which are crucial components for your project. The functions your SDK requires entail clear communication between the terminal and the payment software. I assure you that with our extensive knowledge in TCP SSL and ZVT protocols, we can implement this seamlessly. Furthermore, my proficiency in C# will ensure that your SDK performs optimally using the desired language. Our previous works substantiate our credibility - we have developed similar SDKs before, delivering exceptional results that surpass our clients' expectations. Above all, my commitment to personalized solutions will ensure that your unique needs and challenges will be met skillfully and efficiently. Together, let's take on this project and leave you with a top-tier SDK tailored specifically to your requirements.

Hi Good morning , I have read the brief details on your job listing . I see you have been looking for someone experienced with Android, C++ Programming, Payment Gateway Integration, C Programming and C# Programming. Its been 8 years since I have been working on freelancer.com, I have 9 years of experience doing similar jobs. I would request you to check my profile and review projects, feedbacks of projects related to those skills. Questions: 1. These are all the requirements of your job or do you have more? If yes, Please provide detailed requirements in chat and let me review and get back with queries. 2. Do you currently have anything done or this job has to be done from scratch? 3. What is the timeline to get this job done? 4. Are you open to use 3rd party APIS for it even if they are paid? Why Choose Me? 1. I have done more than 250 major projects only on freelancer.com. 2. I have not received a single bad feedback since last 5-6 years. 3. You will find 5 star feedback on last 100+ major projects which shows my clients are happy with my work. Portfolio: https://www.freelancer.com/u/AwaisChaudhry Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) Please initiate the chat so we could discuss it in detail and we will continue from there. Thanks! Awais

Hello,I have read the job description and I am interested in this job. I have 8 years experience in developing products using C Programming, C++ Programming, Payment Gateway Integration, Android and C# Programming. I have read your requirements and am ready to start working for you. My Portfolio: https://www.freelancer.com/u/AITSoft Regards, Shamshad

Hi, I have more then 15 year’ experienced in Development with full stack . As i am expert, I can build it according to your requirements. Because I have a lot of the experiences about these fields, I can build your project as soon as possible perfectly. I offer excellent software quality work and provide the best support on your project. If you give me this job, I will do my best to finish your job until your timeline. If you want to see my past works, I can show you my past works right now. Ready to discuss with you about the task now.

Greetings, I am eager to express my interest in taking on this project. As a professional software developer with over 5 years of experience, I bring a wealth of expertise to the table. I have a strong background in working with the ZVT protocol for connecting terminals and cash registers, as well as proficiency in FEIG for handling payments. I am fully capable of creating an SDK that seamlessly integrates and efficiently handles the specified functionalities. I am willing to offer a proof of concept (POC) for these features. The SDK I provide will be thoroughly documented, ensuring ease of integration into your codebase. Please feel free to reach out for further discussions. I am excited about the possibility of contributing to your project. Best regards

Hello We are a group of Software Engineers (Programmers) having 10+ years of experience. Expert in JAVA, C, C++ , C# , .NET, Python, MATLAB. Done many projects here on FREELANCER.COM. The bid is negotiable and we can talk about the price. Thank you

Hello,***** SDK including API for Payment Terminal POS **** I read your requirements carefully and understood very well about the project scope and started working accordingly in stages. I have more than 11+ years of experience in programming and I believe that I can start working step by step and achieve the project goal I'd like to discuss your project requirements further, so please message me through the freelancer chat room. With Regards, Thanks, Julian

I worked a lot with software for electronic banking systems and POS terminals. Well-versed in ISO 8583 (Poseidon), ZVT, APDU standards. I can create an SDK with an API for a FEIG POS payment terminal with all the functions you need in C#.

Hello I've just completed a thorough review of your project Creator of an SDK including API for Payment Terminal POS initial details. I extend a warm invitation for you to explore my profile, assess my skill set, peruse my extensive portfolio of past accomplishments, and delve into the testimonials from highly satisfied clients. This comprehensive overview should instill confidence in my suitability for this role. Let me take this opportunity to showcase my Expertise: My diverse skill set equips me to adeptly handle a broad spectrum of projects, including:  Web Development  Mobile app development (for both iOS and Android)  ESM solutions  E-learning platforms  Online stores  API configurations  UI/UX Design  Quality Assurance With over 13 years of industry experience with C Programming, C++ Programming, C# Programming, Android and Payment Gateway Integration,i have earned my reputation by successfully delivering in excess of 300 projects on different Freelance Platforms. My commitment revolves around adhering to project timelines, an unwavering pursuit of quality, and an unswerving focus on exceeding customer expectations. We eagerly anticipate your response. Warm regards, Faisal Hussain

Hello This is Arvie from Philippines. Since I have worked on similar projects and I am super-familiar with C# Programming, Payment Gateway Integration, C++ Programming, Android and C Programming. I believe that I'm the perfect person who can finish the project completely. Please contact me for further discussion and let's get started! Thanks and regards, Arvie.

Hello, I seen your project You need " to create an SDK with API for a payment terminal POS. " I am confident that I can deliver your project on time and to your expectations, and I already developed similar type of projects. please connect on my chat and share my portfolio link. I am a skilled mobile app developer with 8 years of experience in developing Mobile App development frameworks ( Android Kotlin/Java & iOS iPhone/ iPad Swift and Xcode ) and UI/UX design principles with Admin Panel. I can make your Application User-friendly and as per your project requirement. I've done many successful projects and it's including Ecommerce, Delivery, Sports, News, Social Media, Education, Dating and etc. Lets connect the chat box for more detail discussion. Thanks Sushma

Drawing from my extensive experience as a C# developer and payment gateway integration expert, I am confident that I possess the skills and knowledge necessary to create an exceptional SDK with API for your payment terminal POS. My previous work in this area has armed me with an in-depth understanding of the ZVT and TCP SSL protocols, specifically with terminals from FEIG - directly aligning with your project's needs. As requested, I'd like to highlight some key features that I can integrate into the SDK. For handling transactions, I can ensure that you have smooth access to the payment/authorization function at all times. Furthermore, I can implement intermediate status information display such as card insertion prompts, incorrect PIN alerts, and limit exceeded notifications for your convenience. One unique value I bring to the table is a penchant for thoroughness. In addition to enabling successful or failed payment status returns and easy determination of card types, such as girocard, Visa, Amex, MasterCard etc., via API, my SDK will also include a comprehensive diagnostic function. This allows for swift troubleshooting of any issues that may arise. Finally, to guarantee a holistic terminal management experience, I will equip the SDK with functions like cash cut/daily closing, cancellation, credit and document repetition. Choosing me guarantees not just a completed project but an effective one that goes beyond simple functionality.

Hallo! Sie benötigen einen Ersteller eines SDK inklusive API für Payment Terminal POS. Je nach Ihren Projektanforderungen kann ich Ihr Projekt mit meinem Wissen und meiner Erfahrung effizienter gestalten. Ich möchte mit Ihnen zusammenarbeiten und bin mir sehr sicher, dass Sie sich bei der Zusammenarbeit mit mir großartig fühlen werden. Zusammen mit Ihren Projektanforderungen stelle ich Ihnen sauberen Quellcode mit kostenloser Fehlerbehebung und Wartung zur Verfügung. Ich verfüge über mehr als 7 Jahre Berufserfahrung in der Entwicklung von Web- und mobilen Apps. Ich habe an so vielen Projekten gearbeitet wie Immobilien, Lebensmittel, Kleinanzeigen, Instagram-Klon, Taxi, Lieferung, Lebensmittellieferung, Bestandsverwaltung, Belohnung, soziale Medien, Anbieter von On-Demand-Diensten, Ernährung, Schulmanagement, Pos, E-Commerce, Event-Buchung usw. Ich bin voll und ganz darauf bedacht, meine Arbeit möglichst effizient und zeitsparend zu erledigen. „Wir freuen uns auf Ihre positive Antwort. Bitte öffnen Sie Ihr Chat-Fenster, um weitere Details zu erfahren.“ Danke. betrachten, Christina

Hi! Already have something similar to show you live Mobile App Development. I have gone through your requirement. I can say that we have already worked on the similar project earlier. I can build your work as lowest cost as possible with best quality. I have in total of 10 years of experience in project development. Let us discuss more about this. Thanks and Regards Prakhar

Hi Greetings! We are a team of software developers. We have developers working on almost all the technologies. We will assign you a project manager who will assist you during the entire process of project completion. We will provide you with fast, timely, and on-time delivery at reasonable and minimum cost. We are a registered company located in Indore, India. We are available right now for the project discussion and can start the project on an immediate basis. We understand your project requirement We have 9 ++ years of experience in design and development. We can handle projects from small styling to full development from scratch. We will provide a good result in a short time and satisfy you fully. We have experienced developers in C Programming C# Programming C++ Programming WHY-Us: » Ready to Start on an Immediate basis &provide proper Testing. » Keep your Data & Website Secure: Daily Progress Updates. » You will get 30 days FREE BUG-SUPPORT even after Project-Completion Please come in touch and let's discuss more detail about your task via chat. Project milestones will be decided during the chat. Thanks and Regards Tech India

Hello! Going through with the requirements in project description, I would like to take your project on board. I am an independent and professional developer with 100% completion rate. Please knock me for a quick discussion about the project.

I have made some electronic payment interfaces, and I believe I have the ability to make an interface just the way you want it so that it can be consumed by your existing applications. Regards Joshua Borjas

With over 5 years of development experience, I am confident that I can deliver the top-quality SDK with API for your Payment Terminal Point of Sale Project. My fluency in C, C++, and C# programming languages makes me uniquely suited for this task, specifically since you mentioned that the SDK should be written in C#. I have worked extensively with various protocols including ZVT and TCP SSL and have hands-on experience with FEIG terminals. More importantly, I have comprehensive knowledge of your desired functionalities; transfer amounts, intermediate status information, payment status and card types, diagnostic functions, cash-cutting features, document repetition just to mention a few. Best regards

I hope you're doing well. I am writing to express my interest in your recent project posting for C++, C, C# development. I am a highly experienced C++ developer with 12+ years of industry experience. Our team includes individuals with 3 to 14 years of experience in IT, as well as Web development. I have a deep understanding of C,C++, C+ programming, including its various features and libraries. Throughout my career, I have successfully completed a wide range of C++ projects, from small applications to large-scale software systems. I have a proven track record of delivering high-quality and reliable software solutions, on time and within budget. I am particularly skilled in the following areas:- Object-Oriented Programming (OOP) concepts and design patterns. Standard Template Library (STL) for data structures and algorithms. Multi-threading and concurrency programming. Cross-platform development, including Windows, Linux, and macOS. Experience with modern C++ features, such as C++11, C++14, and C++17. Experience with development frameworks, such as ROS and Unreal Engine. Firmware development. I am also happy to sign a non-disclosure agreement to protect any confidential information related to the project. I am looking forward to a long-term business partnership with you. If you would like to discuss this proposal further, or if you have any questions, please do not hesitate to contact me. I would be happy to schedule a call at your convenience. Thanks & Best regards, Peter.

Dear Client, This is Aleksandrs from Latvia, senior software developer. Since I have worked on similar projects and I've good experience in C# and API integration. I believe that I'm the perfect person who can finish the project completely. Looking forward to chatting with you soon. Thanks and regards, Aleksandrs