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Full Stack Developer Needed – VPN Website / WHMCS / Stripe / Automation Integration We are looking for an experienced full stack developer to complete and stabilize a VPN subscription business website and billing system. The project is already partially built and requires an expert to finish integrations, fix automation issues, improve reliability, and ensure the entire customer flow works perfectly from purchase to VPN account delivery. Website:[login to view URL] Current Stack: Frontend website already live WHMCS installed on billing subdomain Stripe connected VPNResellers module/API installed Hosting via Hostinger Domain/DNS via IONOS What Needs Completing / Fixing: Stripe → WHMCS → VPNResellers Automation Ensure successful Stripe payments automatically create WHMCS orders Automatically provision VPN accounts after payment Deliver login credentials instantly to customer email Ensure failed payments/cancellations are handled correctly WHMCS Product & Cart Configuration Correct product mapping and pricing Fix checkout/cart routing issues Ensure all website pricing buttons correctly pass customers into WHMCS checkout flow Remove any broken/manual payment paths Email Deliverability Fix WHMCS email sending reliability Configure SMTP properly Ensure welcome emails, invoices, and VPN credentials send instantly SPF / DKIM / DMARC verification Website Stability & SSL Resolve redirect/SSL inconsistencies between .com and .[login to view URL] domains Ensure padlock/security warnings are completely removed Verify all redirects and DNS setup UX / Conversion Improvements Improve checkout flow Reduce friction Mobile optimization Improve loading speed and trust signals Testing & Quality Control Full end-to-end testing:Website → Checkout → Stripe Payment → WHMCS Order → VPN Provisioning → Customer Email Delivery Ensure automation works repeatedly without manual intervention Optional (Bonus) Affiliate system setup Upsell flow for longer plans Subscription upgrade automation CRM/customer management improvements SEO technical cleanup Ideal Developer: Strong WHMCS experience Stripe API/webhook experience VPNResellers API/module experience preferred Strong DNS/SSL troubleshooting knowledge Full stack debugging ability Experience building subscription SaaS/VPN systems Important:This is NOT a basic website build. We need someone who can diagnose issues properly and finish a near-complete system professionally. Please provide: Relevant WHMCS projects Stripe automation experience API integration examples Estimated timeline Availability for quick communication Goal smooth frictionless vpn site allowing for high sales conversion
Project ID: 40451777
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176 freelancers are bidding on average £155 GBP for this job

YES--------I believe I can do this project in an efficient and professional manner. I am highly proficient to work on this project . I am Passionate WHMCS /PHP/Full stack developer having rich experience with all the latest technologies with so many successful Tasks. I have some queries to give you accurate time and price Please ping me to get started and provide you great results. Thanks
£333 GBP in 7 days
8.1
8.1

Dear Client, Hope you are doing good!! I am ready to help you on Immediate basis. I would love to discuss further, ASAP you schedule the interview. I am an experienced Full-Stack website developer, Develop near about 550 websites. I can create custom CRM, React.js, Node.js, Laravel, ERP, Custom Plugin, Wix, WordPress, SquareSpace, Webflow, Shopify, MySQL, JavaScript, HTML, Woo-commerce Integration, jQuery, Third Party API integration, Bug Fixing, Troubleshooting, Malware Cleaning, Site Migration. Please have a quick chat discussion and let me know your thoughts. When can we discuss? Regards
£250 GBP in 2 days
8.3
8.3

I have reviewed your requirements for stabilizing your VPN subscription platform and integrating WHMCS with Stripe. Managing complex billing systems and VPN infrastructure requires a steady hand, and I have the backend experience to ensure these services communicate reliably. My background includes 15 years of full-stack development, specifically working with PHP, Linux environments, and custom API integrations. I frequently handle server-side troubleshooting and complex migrations, so I can step into your existing architecture to clean up the code and resolve any stability issues currently affecting your subscription flow. I can complete this setup for $119.86 within a 1-day turnaround to ensure your business is up and running without further delay. Send me a message so we can review your current site architecture and get started.
£119.86 GBP in 1 day
8.1
8.1

Hi As a seasoned full stack developer with a dedicated team, I specialize in building, stabilizing, and scaling web applications for startups and enterprises worldwide. Combining my problem-solving skills and strong technical knowledge, I have enabled businesses to transform their ideas into high-performing digital solutions - exactly what you're looking for with your VPN website project. My expertise covers the full spectrum of your project requirements - WHMCS, Stripe API/webhooks, DNS troubleshooting, and more. Vouching for our competence in delivering near-complete systems professionally and efficiently, you can count on us to ensure your customers' entire journey from purchase to VPN account delivery is seamless. I'd love to share our relevant work experiences that align closely with your needs, from backend/frontend development (PHP/Laravel/JavaScript) to successful API integrations and custom systems like CRMs. We are well-versed in creating scalable SaaS/VPN systems that guarantee smooth automation without manual intervention. Thanks....
£250 GBP in 5 days
8.0
8.0

⭐⭐⭐⭐⭐ Full Stack Developer for VPN Website and Automation Integration ❇️ Hi My Friend, I hope you're doing well. I reviewed your project needs and see you're looking for a full stack developer to complete your VPN subscription site. Look no further; Zohaib is here to help you! My team has completed over 50 similar projects focused on automation and website integration. I will ensure all integrations are seamless, fix automation issues, and improve your site's reliability, making the user flow from purchase to VPN account delivery smooth. ➡️ Why Me? I can easily complete your VPN website and billing system as I have 5 years of experience in full stack development, working extensively with WHMCS, Stripe, and API integrations. My expertise includes troubleshooting DNS and SSL issues, ensuring smooth payment processes, and enhancing user experience. Additionally, I have a strong grip on automation techniques to guarantee a flawless customer journey. ➡️ Let's have a quick chat to discuss your project in detail, and I'll show you samples of my previous work. Looking forward to chatting with you! ➡️ Skills & Experience: ✅ Full Stack Development ✅ WHMCS Integration ✅ Stripe API/Webhook ✅ VPNResellers API ✅ DNS/SSL Troubleshooting ✅ Website Optimization ✅ Email Deliverability ✅ Automation Solutions ✅ User Experience Design ✅ End-to-End Testing ✅ Database Management ✅ Project Management Waiting for your response! Best Regards, Zohaib
£150 GBP in 2 days
7.9
7.9

Hi, We’re Doomshell Software Pvt. Ltd. with 20+ years of experience, and we approach system integrations like a reliability pipeline—not guesswork. Your requirement to stabilize a VPN subscription flow using WHMCS, Stripe, and VPNResellers aligns perfectly with our expertise in automation and API orchestration. Our Approach: We diagnose and fix the full transaction lifecycle: • Stripe webhooks → WHMCS order creation (accurate, fail-safe handling) • WHMCS → VPNResellers API provisioning (instant account creation) • Automated credential delivery via secure email setup (SMTP, SPF, DKIM, DMARC) • Fix product mapping, cart routing, and eliminate broken payment paths • Resolve SSL, DNS, and redirect inconsistencies for a secure, warning-free flow • Optimize checkout UX, speed, and mobile performance for higher conversions We focus on clean debugging, stable hooks, and repeatable automation so the system runs flawlessly without manual intervention. Why Doomshell: • Strong WHMCS + Stripe webhook experience • Proven API integration and debugging capability • Focus on stability, security, and conversion Quick Questions: Are Stripe webhooks currently firing but failing at WHMCS mapping, or not triggering consistently? Should VPN provisioning retry automatically on API failure, or require admin review? We can quickly audit, fix, and deliver a stable, production-ready system.
£135 GBP in 7 days
7.6
7.6

Hi, I have strong experience with WHMCS, Stripe automation, API integrations, and full-stack debugging for subscription-based platforms. I can fix and complete your VPN automation flow from payment to account provisioning, improve checkout reliability, email delivery, SSL/DNS issues, and optimize the overall conversion experience. Best regards, Ihtsham
£55 GBP in 1 day
7.1
7.1

Hi, your system is already close to usable, but the remaining work is in the hard part: making the full purchase-to-provisioning path reliable under real customer behavior. The real engineering risk is orchestration failure between Stripe, WHMCS, provisioning, and email events, especially when retries, failed payments, and redirects create inconsistent state. I’ve worked on live systems where the job was not building from scratch but diagnosing weak links, fixing the flow, and making the automation repeatable. With WHMCS already installed and Stripe connected, this looks like a state-management and integration hardening problem more than a frontend rebuild. The closest examples are Custom Feature Development & Integration and Squarespace Checkout Streamlining for Meal Service -- 2. Both involved stepping into an existing production setup, tracing friction points, correcting routing and business logic, and validating the full user path. I usually structure this kind of work by separating checkout entry, billing events, provisioning triggers, and outbound email into a traceable flow so failures are visible and recoverable. I’d also verify domain, SSL, SMTP, SPF, DKIM, and DMARC together, since those issues often overlap in customer-facing failures. I can start by mapping the current event flow and identifying the exact breakpoints across website, WHMCS, payment, provisioning, and email. Thanks, Hercules
£135 GBP in 7 days
7.0
7.0

Hello, I have over 10 years of experience in WHMCS module and customization, I have also experience in vpn reseller module development I can share code with you. Let me know if you want to use my services. Regards, Mahander
£250 GBP in 10 days
7.1
7.1

Hello, I can help complete and stabilize your ClearViewVPN setup so the full flow works cleanly from pricing button to WHMCS checkout, Stripe payment, VPNResellers provisioning, and instant customer email delivery. I have worked with WHMCS product setup, Stripe webhooks, PHP/API integrations, SMTP deliverability, DNS/SSL fixes, and end-to-end testing for subscription-style systems where reliability matters more than just the website design. I will diagnose the current automation issues, fix broken checkout/payment paths, verify product mapping, configure email records like SPF/DKIM/DMARC, resolve redirect and SSL problems across the domains, and improve the checkout experience for better conversion. I am ready to begin immediately and would be happy to discuss the project in further detail. Thanks, Teo
£150 GBP in 16 days
6.7
6.7

Hi, I am interested in your project because I have strong experience in full stack development, WHMCS automation systems, Stripe webhook integrations, and building end-to-end subscription platforms including VPN provisioning workflows. I will start by auditing your existing setup to identify issues across Stripe, WHMCS, and VPNResellers, then stabilize and complete the automation so that every successful payment triggers correct order creation, VPN provisioning, and instant email delivery. I will fix checkout routing, product mapping, and pricing logic to ensure a seamless customer flow from website to WHMCS without broken or manual steps. I will also resolve email deliverability by properly configuring SMTP along with SPF, DKIM, and DMARC, ensuring all customer communications are reliably delivered. In parallel, I will fix SSL, DNS, and domain inconsistencies to remove security warnings and ensure a stable, trusted checkout experience. Finally, I will perform full end-to-end testing from purchase to VPN delivery and optimize performance and UX for higher conversion rates. Let’s connect so I can review your system and complete it into a fully stable, automated production platform. Alexander
£200 GBP in 7 days
6.6
6.6

I'm a senior full stack developer With over a decade of experience my thorough understanding of web development, particularly WHMCS and API integration, makes me the perfect fit for your VPN website project. I have extensive work history in creating seamless automation workflows, resolving complexities, and enhancing user experiences
£135 GBP in 1 day
6.6
6.6

You need the Stripe-WHMCS-VPNResellers automation chain fully tested and stabilized, with zero manual intervention from purchase to credential delivery. Here’s how I’d approach it: - First, I’ll audit the existing Stripe webhooks and WHMCS API hooks to identify where the provisioning chain breaks. I work regularly with Stripe’s subscription events and WHMCS’s action hooks, so I’ll enforce idempotency for retries and ensure failed payments trigger the correct cancellation flows in both systems. The VPNResellers API will be wrapped in a retry queue to handle transient failures without losing orders. - For WHMCS, I’ll standardize the product configuration by mapping Stripe price IDs directly to WHMCS product IDs, then validate the cart-to-checkout routing with a test matrix covering all subscription tiers. Broken manual payment paths will be removed at the template level, and I’ll enforce a single, tracked flow from the frontend buttons to WHMCS. - On email and DNS, I’ll configure Postfix/Exim on Hostinger with dedicated SMTP credentials, verify SPF/DKIM/DMARC via IONOS, and force HTTPS with strict HSTS headers across both domains. The redirect logic will be consolidated in .htaccess to eliminate mixed-content warnings, and I’ll preload all critical assets for mobile to cut load times under 2s. The 7-day delivery covers the core automation, WHMCS stability, and email/SSL fixes as described; we’ll refine the figure once we walk through the optional bonus items and any undocumented edge cases in the current setup. A 15-minute call will clarify priorities—for example, whether to focus first on the affiliate system or the upsell flows.
£250 GBP in 7 days
6.7
6.7

Hi, I have 15+ years of experience and use AI tools to fix complex full-stack systems fast with quality and low budget. I can complete your WHMCS, Stripe, and VPNResellers setup, fix automation, email, SSL, DNS, and optimize the full checkout flow for smooth sales conversion. I’m available for quick communication and can deliver a stable working system on time.
£135 GBP in 7 days
6.3
6.3

Hello, I understand you need an experienced full-stack developer to stabilize and complete your VPN subscription platform, which is already partially built using WHMCS, Stripe, and the VPNResellers API. The core objective is to ensure a fully automated end-to-end system where a customer’s journey—from Stripe payment to WHMCS order creation, VPN provisioning, and instant credential delivery—works reliably without manual intervention. I will focus on debugging and completing the full automation pipeline, ensuring Stripe webhooks correctly trigger WHMCS order creation, which then reliably communicates with the VPNResellers API for account provisioning. I will also fix product mapping, checkout routing, and ensure all pricing links correctly flow into WHMCS checkout. On the backend, I will stabilize email delivery by properly configuring SMTP, SPF, DKIM, and DMARC so that invoices, credentials, and notifications are delivered instantly and consistently. In addition, I will resolve SSL and domain inconsistencies, ensuring secure redirects across all domains, improve checkout UX for higher conversion rates, and perform full end-to-end testing of the entire system (website → checkout → payment → provisioning → email delivery). The final result will be a stable, production-ready VPN subscription system with reliable automation, clean architecture, and improved customer experience. Thanks, Asif
£250 GBP in 4 days
6.5
6.5

Hello, The main issue in systems like this is usually not Stripe or WHMCS alone — it’s the broken automation chain between payment, provisioning, and email delivery, where small webhook or mapping errors stop the entire flow. Your VPN setup needs a fully reliable end-to-end pipeline where Stripe payments trigger WHMCS correctly, which then communicates with VPNResellers API to provision accounts instantly without manual steps. I have 7+ years of experience in PHP, WHMCS customization, Stripe webhooks, API integrations, and automation systems, including subscription-based SaaS and provisioning workflows. I can fix and stabilize the full flow — Stripe → WHMCS → VPNResellers → email delivery — along with DNS/SSL cleanup, checkout optimization, and automated error handling so the system runs smoothly without manual intervention. Thanks! Best regards
£20 GBP in 1 day
6.1
6.1

Hello, I am a Full Stack developer with strong experience in WHMCS, Stripe integrations, API automation, and subscription-based platforms. I can help complete and stabilize your VPN business system to ensure a smooth automated flow from checkout to VPN account delivery. I have experience working with Stripe webhooks, WHMCS configuration, SMTP/email setup, DNS/SSL troubleshooting, and backend automation workflows. I can fix payment-to-provisioning automation, improve checkout reliability, resolve SSL/redirect issues, and ensure instant customer email delivery with proper SPF, DKIM, and DMARC setup. I will also optimize the user experience, improve mobile responsiveness, loading speed, and conversion flow while performing full end-to-end testing across the entire system. I am comfortable debugging complex integrations and working on near-complete systems that require stabilization and refinement rather than basic setup. Available for quick communication and ready to start immediately. Thanks
£78 GBP in 2 days
6.9
6.9

Hello There!!! ★★★★ ( Complete VPN website with seamless automation & billing integration ) ★★★★ Project understanding: I see you need a full-stack developer to finalize and stabilize your VPN subscription site, ensuring Stripe → WHMCS → VPNResellers automation works flawlessly, emails deliver instantly, SSL/DNS issues are fixed, and the checkout flow is optimized for high conversion. ⚜ WHMCS setup and product/cart configuration ⚜ Stripe payment automation & webhook integration ⚜ VPNResellers account provisioning ⚜ Email deliverability & SMTP/SPF/DKIM/DMARC setup ⚜ SSL, DNS, and redirect stabilization ⚜ UX, mobile optimization, and checkout improvements ⚜ End-to-end testing & quality control I have strong experience with WHMCS, Stripe, and API integrations for subscription services. I’ll ensure your site runs smoothly, automation is reliable, and customers get instant VPN access. Let’s discuss the timeline and get your site fully operational. Warm Regards, Farhin B.
£110 GBP in 10 days
6.5
6.5

Hi, Your VPN subscription platform is exactly the kind of complex automation project I specialize in. I have extensive experience with PHP, WHMCS, Stripe webhooks, API integrations, DNS and SSL troubleshooting, and end-to-end subscription workflows. I can audit and complete the full Stripe → WHMCS → VPNResellers automation so successful payments automatically create orders, provision VPN accounts, and send credentials instantly by email. I will also fix failed payment handling, product mapping, cart routing, SMTP deliverability, SPF/DKIM/DMARC, SSL and redirect issues across your domains, and optimize the checkout flow for higher conversion. My approach is to first identify all broken points, then stabilize each layer and perform repeated end-to-end tests until the process runs reliably without manual intervention. I will provide clean documented updates and deployment notes so the system is easy to maintain. Based on the current scope, I estimate 5 to 8 days for full testing and stabilization, depending on the condition of the existing setup. I am available for quick communication and can start immediately. I would be glad to help turn ClearViewVPN into a smooth, high-converting automated platform and will gratefully accept your feedback throughout the project. Best, Justin
£135 GBP in 7 days
6.3
6.3

Hi, Your system is already close — the key now is stabilizing the automation chain and removing every friction point from checkout to VPN delivery. I can help complete and harden the full flow: Website → WHMCS → Stripe → VPNResellers → automated provisioning → customer delivery Areas I can handle: • Stripe webhook + WHMCS automation debugging • VPNResellers module/API provisioning flow • Product/cart mapping and checkout fixes • SMTP + SPF/DKIM/DMARC configuration • SSL/DNS/redirect cleanup across domains • Mobile UX and conversion optimization • End-to-end testing and failure handling I have experience with: • WHMCS automation and billing systems • Stripe subscriptions/webhooks • API-driven provisioning systems • DNS/SSL troubleshooting • Subscription-based SaaS/e-commerce workflows I’d approach this in phases: 1. Infrastructure + automation audit 2. Stripe/WHMCS provisioning stabilization 3. Email deliverability + SSL cleanup 4. UX/conversion improvements 5. Full QA testing and fallback handling Goal: a fully automated, reliable VPN sales platform with minimal manual intervention and smooth customer onboarding. Available for quick communication and iterative testing during implementation. With regards! Apurva
£250 GBP in 7 days
6.6
6.6

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