Payment gateway java example jobs

I'm in need of a proficient JAVA Jasper developer to design multi-chart - bar, line, and pie charts specifically. You will be using data from a MySQL database. Ideal skills and experience: - Advanced knowledge in JAVA Jasper - Experience in chart design - Proficiency in manipulating and extracting data from MySQL Databases Key responsibilities include: - Designing and implementing interactive and visually appealing multi-charts in JAVA Jasper - Building robust connections to MySQL database - Ensuring the seamless extraction of data from the MySQL database to be used in the charts. Your expertise will be crucial to conveying complex data in a clear, concise manner. It's critical that you're able to design in JAVA Jasper, use MySQL databases, a...

Hello, I want a website kind of single product selling, usually in the latest tech stack; the front end can be in angular, react, etc., and the back end can be in Java/Kotlin-based micro-services, with relational db support. Initially, we can launch a website on a cloud basis infra. Later, we can move it to locally. First, I want to have a demo short of; if you understand the requirements, you can suggest ideas, design, and update requirements accordingly, having a product mindset and Indian market. I am a backend tech person, so I understand all this easily and very broadly, but I want to invest my time in product ideas and business, not website creation, myself. We will start with basic things as below: Showcasing what product we have, its benefits, cost, how beneficial for w...

We are currently extending our Java Spring application and are searching for support within the area of Spring Authorization Server and Security. We want to use Spring Authorization server within our multi-tenancy approach. We need to provide different logon mechanisms starting from OAUTH2 (Azure, Google, ..), over Social Logins, API Tokens and regular JWT Tokens. We are searching for somebody who can support our development team in this area.

Indian Expert JAVA Developer required for desktop application customization. Need senior only. not easy work.

I am in need of a skilled software developer with superior expertise in Android mobile app development. The operating system I am interested in is Android and the software to be developed is a mobile application. However, the main function of the mobile app is yet to be defined, but this shall be communicated clearly once a freelancer is selected. Ideal Skills: - Android Development - Java - Kotlin - UX/UI Design Experience: - Proven experience in mobile app development - Portfolio of released applications on the App store or the Android market - Solid experience in mobile app development life cycle.

I need a flutter developer to create an app that is compatible with both Android and iOS. The app will require user authentication and user profiles. Key Requirements: - Flutter Development: Proficient in Flutter with experience in mobile app development. - Cross-Pl...iOS. The app will require user authentication and user profiles. Key Requirements: - Flutter Development: Proficient in Flutter with experience in mobile app development. - Cross-Platform: Ability to create applications that work seamlessly on both Android and iOS devices. - User Authentication: Skilled in implementing user authentication and user profile features. - Camera integration - payment gateway - rest api integration Looking for someone who can deliver high-quality, user-friendly, and secure mob...

SAPUI5 Expert Required on an ad-hoc basis Must have the following skillset -Binding Complex Structures -List Report creation -OData Service Expert -ABAP and BAPI understanding and knowlegde -SAP Plant Maintenance Module SAP PM SAP ABAP DPC Class and retrieving data from PM PM Transactions, Work Orders and Notifications and knowlege of tables SAP Gateway Services SAPUI5 SAP Fiori Elements MVC Framework Bootstrapping SEGW Project Working arrangement: Via Teamviewer/Teams ONLY English Communication Ad Hoc , Remote Position Must be available in SAST (GMT+2) Timezone

...multi-level functionality. Key Capabilities: - User registration and login system - Seamless payment processing capability - Provision of real-time notifications - Job posting and applications management - A search functionality using robust keywords and filters This application targets both individual users and businesses, thus requiring an understanding of user-centric design and excellent UI/UX skills. Job Posting and Applications: - Facilitate users' CV/Resume uploads - Incorporate job criteria matching capabilities - In-platform applications processing I am favoring bids from freelancers with prior experience in similar projects and a robust portfolio to show. An understanding of payment gateway integration is a plus. Professionalism, commitment, ...

Proposal 1. Create a Newsletter module with details of the Plan 2. Add payment method of Coinpayments, a crypto-accepting platform, credentials will be shared with you 3. Add an option to send Newsletter directly to the subscribed users where they get the option to read and download as well for Elite membership. Create Newsletter module with fields: Title, Body(editor) File(s) uploads and the option of selecting the target audiences (group by Plans), checkbox to select whether it will be visible to annonymous user. Paid users will see all the newsletters after login to the platform 4. Add a referral page where new user can refer and get free subscriptions for the next 1 year

...developer to assist in integrating a Gcash E-Wallet And Paymaya E-Wallet payment gateway into my project. The objective is to accept online payments, and ensure an easy and intuitive customer experience. Key project requirements are as follows: - Implement Gcash E-Wallet as a payment method. - Guarantee transaction security through the incorporation of recommended measures such as SSL certificate, tokenization, and two-factor authentication. Ideal candidates will have: - Extensive experience in payment gateway integration. - Familiarity with Gcash E-Wallet system. - Proven proficiency in software security, and specific experience with SSL/TLS, tokenization, and two-factor authentication. - Ability to deliver a seamless payment experience. Th...

I need a flutter developer to create an app that is compatible with both Android and iOS. The app will require user authentication and user profiles. Key Requirements: - Flutter Development: Proficient in Flutter with experience in mobile app development. - Cross-Pl...with both Android and iOS. The app will require user authentication and user profiles. Key Requirements: - Flutter Development: Proficient in Flutter with experience in mobile app development. - Cross-Platform: Ability to create applications that work seamlessly on both Android and iOS devices. - User Authentication: Skilled in implementing user authentication and user profile features. - payment gateway - rest api integration Looking for someone who can deliver high-quality, user-friendly, and secure mob...

I need to create an AWS Lambda function for user creation in DynamoDB. For Endpoint creation - API Gateway For User auth - JWT

...who can create a medium-sized B2C single vendor eCommerce website. The website must have the following features: • User registration and login: Customers should be able to create their own accounts and subsequently log in to access our services. • Product catalog and search: A system for listing products and a search function to allow customers to easily find what they're looking for. • Payment gateway integration: A seamless method for customers to make secure payments. The website should have the capabilities to handle moderate product variables and an average traffic flow seamlessly. Key Magento 2.0 functions to be incorporated include, but are not limited to: • Customizable designs: I want to be able to tailor the aesthetics of the web...

...business owner, I am seeking an experienced web designer and developer to enhance my existing website with an increased focus on sales. Driven by robust e-commerce capabilities, the website must lead and encourage visitors to make purchases seamlessly. Your contribution would include: - Upgrading the current design to a more sales-conducive format. - Integrating 'Easebuzz' as our preferred payment gateway, providing our customers with a secure and easy checkout method. - Suggesting and implementing further enhancements to increase customer engagement and online sales. Ideal skills and experience the freelancer should have: - Proven web design and e-commerce development experience. - Expert in Easebuzz integration. - Knowledge of current e-commerce best practic...

I'm in need of a professional to integrate bank and credit card payment methods into my existing system. The system should exclusively support transactions in Rupees. Key Requirement: - Creation of a new merchant account/payment gateway. I am not limited to specific payment gateways as long as the system-run transactions are secure and efficient. Ideal Skills: - Hands-on experience with payment gateway integration, especially for bank transfers and credit card payments - Proficient in managing and navigating through financial and payment platforms - Knowledgeable in Rupee-based transactions - Sound understanding of web security standards particularly relating to payment integrations is desirable you can see the current websi...

...efficient system to keep track of stock levels, and notify when items are running low. - Payment gateways: Capability to accept a variety of payment methods, providing a convenient shopping experience for customers. The website's main objective is to sell products, so it's important that the design aligns with these needs. I'm looking for a modern and minimalist theme to be applied. A clean and professional appearance is crucial for establishing trust with potential customers. The ideal candidate for this project should have: - Proven experience in Shopify development - Strong understanding of e-commerce platforms - A keen eye for modern design and minimalism - Skills in inventory management and payment gateway integration If you possess th...

I'm look...physical products which is intended for a general consumer audience. Key functionalities essential to the project include: - Integration with Razorpay for smooth and secure payment transactions - Development of a admin interface with features such as: - Product uploading: Enables easy and efficient product listing and categorization. - Sales tracking: Provides real-time sales data analysis for business decisions. - Inventory management: Helps keep accurate stock records and prevents over/under stocking. The ideal candidate should have proven experience in MERN stack development, e-commerce site creation, and payment gateway integration. Knowledge about UX/UI designs suited for e-commerce platforms, and ability to create a user-friendly interfac...

I need an experienced cucumber expert to write down test cases using the Gherkin language for the testing of my Java-built REST API. • The testing will involve a Java-based REST API implementing OAuth 2.0 for authorization. • You will require knowledge and experience in both Java and REST APIs. • Proficient in API testing methodologies, and identifying endpoints and corresponding HTTP methods. • The ability to build comprehensive Gherkin scenarios is critical. An ideal freelancer should be proficient in Java, familiar with REST APIs, and experienced in using Gherkin language for API testing. Experience in OAuth 2.0 authentication method is also necessary.

...availability, etc. - Tutor Profiles: Detailed profiles of tutors, including their qualifications, experience, and reviews from other parents/students. - User Reviews: A section for parents/students to leave reviews about the tutors they've worked with. - Student Profile: Profiles for students, allowing parents to track their progress and specific learning needs. - Payment Gateway: The platform should support a subscription-based payment model. - Follow-Up System: An automated mail/call system to gather feedback and track progress. - Additional Learning Materials: A section to provide extra learning resources to parents/students. Ideal candidates for this project should have experience in creating user-friendly and secure e-commerce websites, prefer...

I'm looking for a skilled Java developer to implement a web-based Uno card game. The project involves multiple layers and components, all of which need to be developed from scratch. Key requirements: - Database Layer: You will need to integrate sqlite for data storage and retrieval purposes. - DAO Layer: Implement a Data Access Object layer for connecting the business logic with the database. - Server Layer: Develop a RESTful web service to manage the game's logic and handle user interactions. - Frontend: Create the game's user interface using JavaScript, CSS, and HTML. The design should be moderate, with pleasing aesthetics and some animations. Importantly, use only the library for this purpose (). Modify this to match UNO Card Game

As an experienced Python programmer with a focus on OCR and deep learning, I'm looking for a savvy Python developer who can help develop an OCR Model using machine learning or deep learning. The model will be used specifically for complex math equations. The details are as follows: - Dataset: Unfortunately, I currently do not have a d...between 80-95%. A capability to improve this rate in the future would be seen as a significant plus. My ideal candidate will have experience with: - OCR and ML/DL model development - Sourcing or creating datasets - Achieving optimal accuracy levels for OCR models This role requires a deep understanding of Python and machine learning methodologies. Knowledge of other programming languages like Java and C++ would be considered a plus but is...

I'm in need of a proficient...strong proficiency in software development - A deep understanding of Windows OS The program should possess an essential feature which is a correct word-breaking routine. Furthermore, it should empower users to define their own word-breaking rules. Prior experience programming in languages compatible with Windows OS is vital. Preferred skills for the job would include: - Programming languages, C++, Java, Python - Windows application development - Ability to work with language processing algorithms This project requires someone who understands the intricacies of typing programs and the Thai language, someone who can create a software catering specifically to the users' needs. It's a challenging yet rewarding project for anyone who excels...

I need a skilled Android developer to update my existing Android app's code to generate a signed APK for submission ...app's code to generate a signed APK for submission on Playstore. Key requirements: - The current version of the app is not specified, but I need the code to be updated to the latest standards. - The task is focused on code improvements and updating; there are no specific changes or enhancements to be made to the app's UI/UX, resolving bugs, or adding new features. Ideal Skills: - Proficiency in Java and Android Studio. - Experience with app updates on Google Playstore. - Ability to efficiently navigate and modify existing code. - Capability to generate a signed APK. This is a straightforward task for an experienced Android developer. I look forwar...

I'm in need of a professional to help me integrate the PhonePe payment gateway into my website. Requirements: - Proven experience in integrating PhonePe payment gateway, advanced level proficiency is a must. - I'm interested in detailed project proposals that clearly outline your approach to the integration process. - Please also highlight any similar past projects that demonstrate your capability to handle this task. Note that the successful candidate will be expected to ensure a sturdily integrated system in my website that provides seamless transactions for users.

...site will need 5-10 pages designed in total. Keep in mind that the Purchased them has taken care of a lot of design you will mostly just need to use the elements already provided by the theme for the design. so it should be quick and easy for an experienced designer. Key components & requirements: - E-commerce features: I would like the website to have a shopping cart to sell hair products, payment gateway integration for seamless transactions, and an appointment-based booking system. - Appointment-based booking system: This should allow existing and potential clients to easily schedule appointments with me, with the option for me to manage the availability. Skills & experience needed: - Proven experience in designing and developing e-commerce websites, particul...

I'm in need of an experienced Java Selenium APIs tutor to help me automate test cases for two business web applications. Requirements: - Expertise in Java programming and IntelliJ for test automation. - Proficient in Selenium and APIs, particularly in creating automation scripts. - Knowledge of Cucumber for implementing BDD framework. - Ability to guide and advise on the automation process. This is a collaborative effort, I'm looking for someone who can not only help automate my test cases, but also teach me how to do it effectively. Also due to Coles VPN and restricted access, the job has to be online with connecting to my computer either through meetings with share screen or sharing through git hub!

I'm in need of a skilled Java developer to create a Java application for my project. Key Requirements: - The application should be designed for efficient data processing. Additional Details: - The application doesn't need to interact with any other systems or APIs.

I am in need of a Java Developer with a high level of proficiency in Java programming. The main purpose of this project is system integration. Key Requirements: - Expertise in Java programming and object-oriented programming is essential. - Prior experience and track record in developing applications for system integration would be a big plus. - Knowledge of software development practices and methodologies. The ideal candidate should be able to understand complex system requirements, design and develop Java-based applications that can seamlessly integrate disparate systems for efficient data flow and communication. Your ability to ensure the application is scalable and robust will be crucial for the overall success of the project. A proactive approach, probl...

We are seeking a highly skilled and experienced Java GUI Developer to design, develop, and enhance user interfaces for our Java-based applications. The ideal candidate will be an expert in Java Swing and JavaFX, with a proven track record of creating visually appealing and user-friendly desktop applications. This role requires a deep understanding of user interface design principles and the ability to translate complex requirements into functional, robust, and efficient GUI components.

Full stack developer needed to join our dynamic team. Responsibility: - Strong knowledge in backend and frontend : React, Angular, Vue, TailwindCSS, Web3, Java, ASP.NET, Django, Flask, Restful API, - Good Communication - Work at EST Time - English Proficiency - Pakistan Developer Only If you are interested in this position, please schedule an interview.

...consumption: The bot should be able to intelligently consume potions whenever required • Mob detection and avoidance: Bots must have the ability to detect and evade mobs automatically • Chat filter: It should be able to interact with other users by filtering out specific keywords or phrases There is versatility in the choice of code we are willing to accommodate for this initiative. Whether Python, Java, or C#, the primary focus should be on efficiency and effectiveness. Prior experience with bot creation for games and an understanding of Ragnarok private servers is highly desirable. If you have such skills and believe this sounds like a fit, kindly submit a proposal outlining your previous work and ability to commit to this project. Let's get this adventure sta...

I'm in need of a Java developer to create a student project using Java and MySQL. The main features of this project will revolve around 'Student Enrollment and Management.' Key Project Components: - **Student Enrollment and Management:** The core of this project, where students will be able to register and their details can be efficiently managed. User Interface Design: - **Simple and Intuitive UI:** The user interface should be seamlessly easy to navigate, aiming for user-friendly experience. Frameworks and Libraries: - **JavaFX for the Desktop Interface:** The project is expected to utilize JavaFX for the desktop interface. Ideal skills and experience for the job: - Proficient in Java (especially JavaFX) - Solid knowledge of MySQL - Experience i...

We are seeking an experienced Java Spring Boot developer to join our project team. Our project entails the development of a web application with Java Spring Boot for the backend and React for the frontend.

I'm in need of an experienced website developer to create an e-commerce website for my service-based business. Key Features: - As the website is e-commerce focused, it will require a shopping cart and payment gateway integration. - User reviews and ratings may be a beneficial feature to add, so experience with implementing this would also be a plus. Product Type: - The website will be primarily selling services, rather than physical or digital products. Ideal Candidate: - Proficient in e-commerce website development. - Familiar with integrating payment gateways. - Experience with user reviews and ratings systems.

I'm seeking an experienced professional to execute a comprehensive project that includes m...multiple access points. Experience in balancing network traffic and optimizing signal strength across numerous APs is anticipated. - Install dome cameras and PTZ functionality for security purposes. Knowledge in IP cameras, analog cameras, and video recording and storage solutions is essential. - Implement a billing system, enabling customers to pay for access. Prior experience in similar payment gateway or subscription systems will be ideal. - Lastly, include a feature to allow free access in emergency situations. Your ability to integrate multiple systems and maintain a user-friendly operation would be crucial for the success of this project. All systems should work seamlessl...

I'm in need of a savvy developer skilled in payment gateway integration. Specifically, the task requires connecting NMI gateway to our Standard Connect Marketplace. I'm partially familiar with NMI, yet need some assistance with its integration. Primarily, we'll be processing one-time payments through this gateway. - You should ideally have experience in working with: - NMI gateway - Standard Connect Marketplace - Payment gateway integration - You'll also need to be comfortable with API usage, as your main resource will be Stripe’s API documents for Standard Connect. See here for reference: (). Your expertise will guide us in this task, ensuring a seamless payment process for our users making one-ti...

...Scientist, or similar role with a focus on data analysis and machine learning. Strong analytic skills related to working with unstructured datasets. Experience with big data tools: Hadoop, Spark, Kafka, etc. Experience with data pipeline and workflow management tools. Experience with AWS cloud services: EC2, EMR, RDS, Redshift. Experience with object-oriented/object function scripting languages: Python, Java, Scala, etc. Proficiency in SQL and experience with relational databases, query authoring (SQL) as well as familiarity with a variety of databases. Excellent problem-solving skills and ability to work independently or as part of a team. Strong communication and collaboration skills to effectively work with teams across the organization. What We Offer: Competitive salary and...

...media promotion services. - The primary goal of the website is to enhance brand visibility and awareness. - Payment gateways should include Stripe and Cryptocurrency. -This website also need to have client / customer panel from where customers can see the order status with progress bar and re-order of any old posted order. -There should be a floating chat bar option. -Admin should have option to add service later -App should sent notification/ push when new service added or order update. Ideal skills for the job: - Strong experience in web development, particularly in e-commerce sites. - Knowledge of social media marketing and SEO is a big plus. - Familiarity with payment gateway integrations. - Creativity in user interface and experience design. - Good commun...

I'm seeking a highly experienced web develope...show to the contractors logged into the site and they will be allowed to bid on the job, the employer can accept whichever bid they want, after the deal is done, contractors can mark daily attendance for the labourers under them and store the details of labourers and mark which labourer has got the payment. Labourers can access their attendance and wage details on their page. Hence we need seperate login options for labourers, contractors and employers. No need to add payment gateway or any payment method in the site. Understand this project is not being built as a product but a prototype so excess functionalities are not to be added. Tech stack should HTML, CSS, JS, ReactJS. Database can be MongoDB or Firebas...

I'm in need of an IT specialist with a strong background in software development. The project aim is to develop an Android mobile application. Expected Skills: - Expertise in Android development - Proficient in Java and Kotlin - Strong understanding of Android SDK - Familiarity with RESTful APIs to connect Android applications to back-end services - Understanding of Google’s Android design principles and interface guidelines. Prospective freelancers should have a portfolio of previous experience developing mobile applications, specifically Android-based. The ability to effectively communicate the progress and potential issues is vital. Propose your plan of action to express your understanding of the project.

... Thanks for this opportunity. I am glad to connect with you and will try our best to deliver you a robust solution for eLearning product. We can provide you these features in Mobile Application: 1. Login/Signup using Mobile OTP 2. Landing page with courses and categories 3. Video Classes 4. Live Classes 5. Chat in Live Class 6. Mock Test Series 7. PDF & Notes 8. Offline Downloading 9. Payment Gateway Integration 10. Coupons 11. Challenge Module 12. ePapers 13. Student Community Deliverables: 1. Android and iOS Application 2. Super Admin Panel to manage the product 3. Technical Consultancy for all components required to successfully launch this product 4. App publishing and deployment Total Cost: USD 4000 Milestones: 1. Design and Planning Phase: 750 USD (Week ...

I'm seeking a skilled Odoo developer for a series of tasks focusing on maintenance, promotions, and payment methods. - **Maintenance Tasks:** The job includes bug fixes, performance optimization, and content/images updates. - **Promotions Customization:** I need both creating brand-new offers and tweaking existing promotions. Integration of promotional codes is also a crucial aspect. - **Payment Methods Integration:** I'm looking to incorporate Conekta and Openpay payment methods, specifically for convenience store codes. For this project, you'll need: - Proficient in Odoo framework - Experience in e-commerce and promotions customization - Knowledge of payment gateway integrations - Strong communication skills - Preferable to ...

I am looking for an experienced, senior-level Java backend developer to build a new application from scratch in the healthcare industry. This novel undertaking will require a high level of expertise and the following skills: - Robust knowledge in database management - Proficiency in API development - Skills in business logic analysis - Business Logic Expert Applicants should ideally have a strong background in full-time Java backend development, with previous project experience in healthcare or similar fields. Looking for 2 Profiles Europe Based , Java Backend Senior. In this project front is made in AngularJS (as per other front devs)

I'm seeking a mid-level AngularJS developer based in Europe for a full-time position. Tasks Include: - Developing innovative user interfaces - Refactoring and improving existing codebase - ... You must have between 2 to 5 years of solid experience with AngularJS, and be well-versed in creating intuitive and dynamic interfaces. A developer with a keen eye for clean, efficient code will shi...keen eye for clean, efficient code will shine in this position. It's key that you are open to collaborative work, as teaming up with fellow developers, designers, and product managers will be a significant part of this role. If you're proficient in AngularJS, capable of revolutionizing user interfaces, and thrive in a team environment, then I invite your bid. As per info : Backend...

Example style: We - LigoWave provide easy-to-use wireless networking solutions for businesses and communities, ensuring reliable connectivity with advanced technology. We will be releasing new product and we want video showing the highlight features with "Mike" as our older videos had. We no longer have the contacts of older team who did those videos. I am looking for a talented animator to produce a high-quality 2D video that is under two minutes long. Key requirements are: • Skilled in 2D animation. This is a must as it is the style we have chosen for this video. • An ability to produce engaging and captivating content within a short span of time. The video is less than a 1.30min . • An understanding and ability to work

...the process of players finding and joining games. - In-game Chat Support: Implement a robust chat system to enhance player interaction. - Buy/Sell Special Items: Enable players to trade special in-game items. - Event Creation: Develop a feature that allows for the creation and management of in-game events. Ideal Skills and Experience: - Proficiency in server-side programming languages like Java, C++ or Python. - Previous experience in developing game servers and a solid understanding of networking protocols. - Familiarity with creating matchmaking systems and implementing chat functionalities. - Ability to design a secure and stable server environment that can handle the demands of a gaming community. It's a 90' or 2000' game, really old fashion. I...

Implement spring cloud gateway and integrate Azure Ad authentication in gateway, when request reaching to gateway, request should redirect to Microsoft Azure login page, once authenticated successfully then request should route to resource server along with access_token to access the resource endpoint, need to implement this login functionality in spring boot 3 and jdk17

...user-friendly website to facilitate online product sales - Implement essential e-commerce features such as shopping cart and payment gateway integration - Incorporate a customer review section to help build trust and credibility with potential buyers - Design and integrate an opt-in form for custom orders, which is an essential feature for our business model Ideal Skills and Experience: - Proficient in big cartel or similar e-commerce platforms - Experience in website design, particularly in the realm of e-commerce - Strong understanding of user experience and web design best practices - Ability to implement and customize e-commerce features like shopping carts and payment gateways - Prior experience with custom order forms and customer review sections is a plus I...

I'm seeking a skilled developer to create an innovative Islamic prayer app with e-commerce ...with the following features: - Product Catalog: A user-friendly display of available products. - Shopping Cart: Users should be able to add items to their cart. - Payment Gateway Integration: Secure integration of a payment gateway for transactions. Target Platforms: - The app should be developed for both iOS and Android platforms. Ideal Skills: - Proficiency in app development for both iOS and Android platforms. - Experience in creating e-commerce functionalities within apps. - Familiarity with Islamic prayer app features such as prayer times and Qibla direction. - Strong understanding of secure payment gateway integration. Please include...

We have a custom payment module that I need to be modified to support one page checkout in our Magento 2 store. Key modifications: - **One-page checkout support:** The primary requirement is to modify this custom payment module seamlessly with the one-page checkout process in Magento 2. Ideal skills and experience: - Magento 2 development expertise is crucial. - Prior experience in customizing payment modules in Magento. - Familiarity with one-page checkout implementation and customization in Magento. - Proficiency in working with off-site payment processing systems. This project is time-sensitive, so prompt and efficient delivery is essential. I'm looking for a developer who can not only get the job done but also ensure it's done right the first ti...