
Closed
Posted
Paid on delivery
My new site on the Lovable platform is ready to go live except for one critical element: taking payments. All sales will be for service-based offerings, and I want every customer to be able to check out smoothly through Square without leaving the site. What I already have – The Lovable platform instance deployed, with staging and production environments – Square account, application ID, sandbox credentials, and design guidelines ready What I need from you 1. A clean front-end checkout or pop-up flow that captures card details through Square’s secure SDK or Web Payments SDK 2. Back-end logic (webhooks or equivalent) to confirm transactions, store the response securely in our database, and trigger the existing order-fulfilment routine 3. Error handling and success screens that match our brand style 4. Clear hand-off instructions so my in-house developer can maintain or extend the integration later Acceptance criteria • A test transaction in Square’s sandbox shows as “COMPLETED” inside both the Square dashboard and our Lovable admin panel • Switching to production keys requires only an .env change • No PCI data touches our server—everything is tokenised by Square • Checkout works flawlessly on modern desktop and mobile browsers If you’ve connected Square to custom platforms before (Node.js, PHP, or similar), and can deliver concise, well-documented code, let’s talk.
Project ID: 40401657
117 proposals
Remote project
Active 21 hours ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
117 freelancers are bidding on average $42 USD for this job

We’re a full-stack team with solid experience integrating payment systems like Square into custom platforms. We’ll implement a smooth checkout using Square Web Payments SDK, handle secure tokenisation, webhook confirmation, and clean success/error flows—fully mobile-friendly. Code will be clean, documented, and easy for your team to maintain (env-based switch to production). Focus will be secure, seamless checkout. Let’s connect and get this live quickly. Best, Jenifer
$20 USD in 7 days
9.4
9.4

Hello, From small start-ups to multinational corporations, I and my team at Yasir Software have transformed numerous businesses just like yours, streamlining their operations and boosting their sales through clean, efficient integrations. With our expansive expertise in front-end development, HTML, JavaScript, and PHP, we are perfectly poised to swiftly execute your Square payment integration smoothly onto the Lovable platform. To preserve your brand aesthetics while ensuring seamless transaction processing and effective order fulfillment, our code is always concise, well-documented, and performs flawlessly on modern desktop and mobile browsers. We understand how vital security is to maintain customer trust; therefore, we'll ensure all transactions are tokenized by Square-Star Project. At Yasir Software, we believe in delivering results that go beyond just satisfying requirements. Even after we finish the initial phase of the project, our commitment doesn't end there. You can rely on us for providing clear hand-off instructions so that your in-house developer can effortlessly maintain or extend the integration later. Our goal has always been not just creating websites but also long-term partnerships with our clients For a robust Square and Lovable integration that powers payments for your services-based offerings without ever sacrificing performance or security, choose Yasir Software. Allow us to transform your dreams into an act Thanks!
$30 USD in 1 day
8.6
8.6

Hi, Previously i have worked on square payments(One time payment and Recurrent payments). I have over 5+ years of experience in both frontend and backend development. I will do the specified tasks. Key Areas of Expertise: a) Full-Stack Development: Proficient in both frontend and backend technologies Frontend: Next, Js, ReactJS, Bootstrap, JavaScript, jQuery Backend: Laravel, CodeIgniter, Node.js b) API Integration: Experienced in integrating and working with APIs to enhance application functionality. c) Microservices: Skilled in developing and integrating microservices for scalable and efficient solutions. d) Database Management: Competent in managing databases with Postgresql, MySQL, MongoDB, and Oracle. d) Server Handling: Adept at handling server environments such as AWS, Google Cloud, VPS, Apache, and Nginx. Let’s discuss how I can help achieve your project goals and add value.
$250 USD in 3 days
7.8
7.8

I appreciate the clear and defined scope of your project. As a team with vast expertise in API Integration, HTML, JavaScript, and PHP among others, we have successfully integrated payment gateways like Square in several custom platforms. Our extensive experience allows us to develop clean and smooth front-end checkouts, backed by robust and secure back-end logic that ensures efficient transaction management. With us, not only will every customer be able to check out flawlessly through Square as per your requirement, but the integration will adhere strictly to Square’s design guidelines and your brand style. Moreover, our proven capacity in error handling and success screens guarantees that the whole payment process flows seamlessly for your users. We believe in providing ownership to our clients; therefore, we'll clarify all aspects of the hand-off process so that your in-house team can maintain or extend the integration if needed. Our aim is not just to deliver on requirements but exceed expectations, which is why we make lengthy commitments for support and fine-tuning after delivery. So let's talk further about making your Lovable site fully functional with Square payments – it's what we do best!
$20 USD in 7 days
7.9
7.9

Hello Ready to seamlessly integrate Square payments on your new Lovable site I specialize in secure e-commerce setups, ensuring your site is fully transactional and ready for customers. Let's connect to discuss your specific needs and get this launched efficiently, providing a smooth checkout experience. Giáp Văn Hưng
$10 USD in 7 days
6.9
6.9

As a seasoned full stack developer with over a decade of experience, I am confident in my abilities to deliver the clean and concise code you need to integrate Square Payments seamlessly into your Lovable platform. My extensive background in web development, highlighted with skills in JavaScript, Node.js, PHP, and web integrations will definitely be an asset for your payment integration project. I have successfully integrated various payment gateways onto different platforms, including many custom ones. I understand the importance of secure transactions and ensuring that no PCI data touches your server. Rest assured that with me at the helm, everything will be tokenized by Square including your webhooks and checkout details. Additionally, my team comprises professionals skilled in UI/UX design among others. This means we can not only tackle the core task but also offer a comprehensive solution in line with your brand's style and imagery. As someone who emphasizes end-to-end project handling and possesses excellent communication skills, working with me guarantees not only a smooth-running integration but also a solid hand-off plan for future maintenance or extension of the integration. Let my expertise bring value to your project and take it one step closer to going live without any payment hitches. I'm ready when you are!
$50 USD in 3 days
7.2
7.2

Hi There, Your site is already built, so the risk is not the UI — it is making Square payments work securely without breaking Lovable’s existing order flow. I’ll integrate Square Web Payments SDK with a clean checkout or popup flow, tokenized card handling, backend payment confirmation, webhook support, branded success/error states, and clear environment-based sandbox/production setup. I’ll also make sure the transaction shows as completed in Square and updates correctly inside your Lovable admin/order routine without PCI data touching your server. The handoff will include concise notes so your in-house developer can maintain the integration later. Is your Lovable backend using Node/Supabase functions, or do you already have a separate backend for payment processing? best regards Waqas A.
$20 USD in 2 days
6.4
6.4

Hello, I will seamlessly integrate Square Payments on your Lovable site, ensuring a smooth checkout experience for service-based offerings. The solution includes a secure front-end checkout flow, robust back-end logic, error handling, and clear hand-off instructions for future maintenance. Let's discuss the details further. Thanks
$14 USD in 7 days
6.0
6.0

At Toriqul Global Solutions, we transform ideas into high-performing digital products. We are a professional web development agency led by Engineer Md. Toriqul Islam brings over a decade of expertise in designing and developing websites, applications, and custom digital solutions. What We Deliver: ✔ Stunning modern websites ✔ Powerful custom web applications ✔ Mobile apps for Android & iOS ✔ E-commerce platforms ✔ Business automation systems ✔ SEO-friendly and fast-loading websites Our Tech Stack: React, Node.js, Laravel, PHP, WordPress, Python, .NET, MySQL, MongoDB, React Native, Bootstrap, JavaScript, and more. Why Clients Trust Us: • Business-focused solutions • Clean UI/UX design • Secure & scalable systems • Reliable deadlines • Transparent communication • Excellent after-sales support We don’t just build websites, we build results. Let’s create something amazing together. Best Regards, Toriqul Global Solutions
$35 USD in 2 days
6.1
6.1

Greetings, I'm a full stack developer with 10+ years of experience, I can integrate Square Payments into your Lovable platform using the Web Payments SDK, ensuring a seamless in-site checkout flow with fully tokenized, PCI-compliant transactions. I’ll handle backend confirmation via webhooks, order storage, error/success states, and clean environment-based switching between sandbox and production. Why work with me? ★ Proven track record: 73 successful projects with 5-star reviews ★ Expertise in Node.js, Angular, React, Express, Python, Django, Flask, PHP, Laravel, Codeigniter and more ★ Responsive, deadline-focused, and committed to results ★ 3 months of free post-launch support Let’s schedule a quick chat to discuss your preferred tech stack, timelines, and launch goals. I’m confident I can bring your vision to life. Best regards, Samar H.
$15 USD in 7 days
6.1
6.1

Hello, I see you are looking to integrate Square payments into your Lovable platform, with a smooth on-site checkout flow, secure tokenized card handling, and backend logic to confirm transactions and trigger your existing order workflow. I can implement this using Square’s Web Payments SDK for a clean embedded checkout (or popup), along with a secure backend (Node.js or PHP) to handle payment verification via webhooks, store transaction data, and connect it to your fulfilment system. I’ll ensure PCI compliance (no card data touching your server), proper error handling, and a seamless switch from sandbox to production using environment variables. I have experience integrating payment gateways (Stripe, Square-style flows), building secure checkout systems, handling webhooks, and ensuring reliable transaction tracking with clean, maintainable code. One question: is your current Lovable backend already exposing an API endpoint for order fulfilment, or should I design that integration layer as part of this setup? Let’s connect and I can get this payment flow live quickly and cleanly. Best regards. M Waqar Tariq
$25 USD in 5 days
6.5
6.5

Hi, I can integrate Square payments into your Lovable platform so customers can complete service checkouts smoothly without leaving your site, using a secure, fully tokenized flow compliant with PCI standards. I will build a clean checkout UI (modal or embedded flow) using Square Web Payments SDK to securely capture card details, ensuring no sensitive data touches your server. On the backend, I’ll implement webhook handling to confirm transactions, validate payment status, store responses securely in your database, and trigger your existing order fulfillment process automatically. I’ll also design custom success and error states aligned with your brand UI to ensure a seamless user experience across desktop and mobile. The integration will be structured so switching between sandbox and production is handled via simple .env configuration. Finally, I’ll provide clean, well-documented code and clear handover instructions so your in-house developer can easily maintain or extend the system later. With 8+ years of experience in payment gateway and API integrations (including Square, Stripe, and custom SDK implementations), I’m confident I can deliver a secure, stable, and production-ready checkout flow. I’d love to discuss the details and get started as soon as possible! Thanks & Regards Sushma S.
$59 USD in 3 days
6.3
6.3

Hi, I can integrate Square payments into your Lovable site with a secure seamless checkout flow and reliable backend confirmation. Your need for Web Payments SDK, tokenized checkout, webhook validation and clean sandbox to production switch aligns with custom payment integrations I have built without PCI exposure. I will implement frontend checkout, backend verification, error handling and documented code for easy handover. Is your Lovable backend running on Node or PHP so I can align webhook handling and data storage correctly? Best Regards, Fizza Nadeem K
$50 USD in 1 day
5.8
5.8

Hi there, I can integrate Square checkout into your Lovable setup using a clean, secure Web Payments SDK flow so customers can complete service payments directly on-site without redirection, while keeping everything fully tokenized (no PCI data on your server) and ensuring transactions are properly confirmed via webhooks into your existing order system; I’ll also build branded success/error states, make the integration environment-safe (sandbox to production via simple .env switch), and deliver clean, well-documented code with clear handoff notes so your in-house dev can easily maintain or extend it later.
$20 USD in 7 days
6.0
6.0

Hello, I can integrate Square payments into your Lovable platform with a secure, fully tokenized checkout flow. I will build a clean frontend checkout using Square Web Payments SDK so card data never touches your server. On the backend, I will implement webhook handling to confirm transactions and update your database securely. Successful payments will automatically trigger your existing order fulfillment workflow. I will design branded success and error states for a smooth user experience across desktop and mobile. Sandbox testing will be fully validated so a transaction shows as COMPLETED in both Square and your admin panel. I will ensure production switching only requires an environment variable change with no code modifications. Everything will follow best practices for security, PCI compliance, and maintainability. You will receive clean, well-documented code and a simple handoff guide for your developer. Ready to start and get your checkout live quickly and reliably.
$50 USD in 1 day
5.3
5.3

Hello, I came across your project Integrate Square Payments on Lovable and I am very interested in working with you. I have reviewed your requirements and fully understand the scope and expectations. I specialize in PHP, JavaScript, Magento, HTML, Node.js, Web Development, Payment Gateway Integration, Frontend Development, API Integration, Payment Processing and have successfully delivered similar projects before. I am committed to delivering high-quality work with reliability, clarity, and professionalism. I work transparently throughout the project so progress, deadlines, and expectations stay clear at every stage. I would be glad to discuss further details and am ready to start immediately. Looking forward to hearing from you. Regards, Anum
$50 USD in 3 days
5.4
5.4

Hi, I can integrate a seamless Square checkout flow into your Lovable platform setup so customers can complete service-based purchases without ever leaving the site. I’ll build a clean front‑end payment experience using Square’s Web Payments SDK, fully tokenized so no PCI data touches your server. On the back end, I’ll add logic to confirm transactions, store the results safely, and trigger your existing fulfilment routine. You’ll also get branded success/error states and clear hand‑off instructions so your in-house developer can maintain everything easily. The integration will meet your acceptance criteria: sandbox transactions showing as “COMPLETED,” simple .env key switching, and smooth performance across modern desktop and mobile browsers. Check my profile for relevant experience—happy to get this running smoothly.
$350 USD in 5 days
4.9
4.9

As an experienced full stack developer, API integration is one of my core specialties. I have successfully integrated various payment gateways including Square in different applications. I am confident that my skills in HTML, JavaScript, Magento, and PHP will enable me to offer you a seamless solution for integrating Square Payments on the Lovable platform. I completely understand the importance of efficiency and security when dealing with online transactions. Rest easy knowing that I will ensure no PCI data touches your server and everything will be securely tokenized by Square. My strong background in creating clean front-end checkouts and back-end logic using webhooks or equivalent to confirm transactions will be invaluable in ensuring a smooth experience for your customers. Throughout my more than a decade-long career as a developer, I have prided myself on delivering high-quality, well-documented code that is not only reliable but also scalable - just what an innovative platform like Lovable demands. By entrusting this project to me, you can expect not just a technically sound job but also effective communication and timely delivery - all geared towards your success. Let's discuss how I can make your Lovable site lovable by integrating Square Payments swiftly yet securely!
$40 USD in 3 days
5.1
5.1

Hello there! My name is Craig, a highly capable freelance developer with extensive experience in backend development using languages such as PHP and Node.js. I have worked on several projects similar to yours where I had to seamlessly integrate payment gateways for different platforms. One notable example was connecting Square's payment system to a custom Node.js backend-based site, requiring the same secure SDK and Web Payments SDK you've specified. I pride myself on my ability to create clear and concise code that ensures data security while delivering a smooth user experience. In this regard, I'm confident that my skills in frontend development including modern JavaScript frameworks like Vue.js and building efficient data management systems can prove crucial for this particular project. Moreover, I appreciate the importance of not just solving the problem at hand but also ensuring that it remains easily maintainable post-project completion. This understanding allows me to provide thorough documentation as well as clear hand-off instructions that your in-house developer will find invaluable. I truly believe with my skillset, I am the best fit to integrate Square Payments in line with your needs on the Lovable platform without any PCI data touching your server, guaranteeing reliable transactions and a consistent brand experience. Let's bring this project to life together!
$30 USD in 1 day
4.9
4.9

Hello, I hope you are doing well. Your goal of integrating Square payments into your Lovable-based service platform immediately caught my attention. Project Scope: I understand your site is already live and fully built, and the only missing piece is a secure, seamless Square checkout flow for service-based payments without redirecting users off-site. Solution: I can implement a clean Square Web Payments SDK integration directly into your Lovable front-end using a secure tokenized checkout flow. This will include a custom checkout UI (modal or embedded flow), secure card handling via Square (no PCI data stored on your server), and backend webhook logic to confirm transactions and store payment results in your database. I will also connect payment success/failure states to your existing order fulfillment system and ensure consistent branded success/error screens. Additionally, I will configure sandbox and production environments properly so switching keys only requires an .env update, and provide clear documentation so your in-house developer can maintain or extend the integration easily. I have experience integrating Square and similar payment SDKs into custom web platforms with secure webhook handling and production-ready deployment workflows. Looking forward to your response.
$20 USD in 2 days
4.5
4.5

Dallas, United States
Payment method verified
Member since Sep 15, 2018
$10-30 USD
$30-250 USD
$10-30 USD
$10-30 USD
$10-30 USD
$10-30 CAD
$250-750 USD
$750-1500 USD
$10-30 USD
$10-30 USD
₹600-1500 INR
₹10000-50000 INR
₹1500-12500 INR
$750-1500 USD
₹150000-250000 INR
₹150000-250000 INR
$250-750 AUD
$10-2000 USD
$250-750 USD
$15-25 USD / hour
€30-250 EUR
₹12500-37500 INR
$30-250 USD
$250-750 USD
₹600-885 INR