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Job Title: Full-Stack Developer Needed: Real-Time Automotive Auction Site (WordPress Frontend + 100% Live WebSocket Backend) Project Overview: We are launching a highly optimized, un-crashable online automotive auction marketplace for classic cars and trucks. The frontend layout will be built using WordPress (Elementor Pro). To ensure the site never crashes during high-traffic closing windows and feels exactly like Bring a Trailer, we require an expert developer to decouple the real-time data layer from the core website database. Required Core Deliverables: 1. 100% Live Connection (No Browser Refresh): The individual vehicle auction listing pages must utilize a permanent, bi-directional WebSocket connection (via Firebase Realtime DB, Supabase, or Pusher). The countdown clock, high bid amount, total bid count, and chronological bidding history log must update dynamically on the screen in real time with zero latency and absolutely no page reloads. 2. Anti-Sniping Clock Engine: Configure clock-extension logic inside the real-time database. If any live user places a bid in the final 2 minutes of an auction, the remaining countdown clock must automatically reset to precisely 2 minutes and instantly broadcast that change to all connected screens. 3. Off-Server Media Pipeline: Configure a front-end submission form that allows sellers to upload 60+ images and multiple videos. Photos must automatically compress (converting to WebP format) and route directly into an Amazon S3 Bucket or DigitalOcean Spaces to prevent WordPress database bloat. Videos must be delivered via YouTube iframe embeds. 4. Stripe Connect Integration: Set up secure credit card vaulting and pre-authorization token holds for our 2% buyer fee (with a strict $150 minimum fee rule) whenever a live user places a bid. The system must release holds for losing bidders instantly upon auction close. 5. Analytics & Tracking Pixels: Install and verify conversion event tracking across Google Tag Manager, GA4, and the Meta Tracking Pixel so our $4,000/month advertising budget can accurately track user account registrations and completed vehicle submissions. Additional Scope: The platform will focus on cars and trucks from 1990 or older as well as boats of any year, make, or model. To Apply: Please start your application with the word "Piston" so I know you read the full scope. Provide direct links to high-traffic marketplaces or real-time data streaming applications you have personally built utilizing WebSockets.
Project ID: 40630420
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150 freelancers are bidding on average $7,485 USD for this job

A Warm Hello! We are readily available to start working on this project! We are confident to provide you responsive web platform where university students can easily create professional profiles showcasing their education, work experience, skills, certifications, and personal attributes such as video introductions or assessment scores. Recruiters should be able to discover verified talent through searchable profiles, while administrators maintain data quality through document verification workflows. We would be delighted to discuss your vision further and help transform it into a scalable, production-ready recruitment platform. Thank you for considering our proposal. We look forward to partnering with you. Best regards, Ana
$10,000 USD in 70 days
10.0
10.0

Piston Hi there, We understand you're looking to build a highly optimized online automotive auction marketplace with a real-time data layer, similar to Bring a Trailer, utilizing WordPress and a 100 live WebSocket backend. Our team at Webbook Studio has experience with similar projects, including a learning platform website for children with real-time updates using PHP and WordPress, and a music voting mobile app using React Native and WebSockets. We can deliver a permanent, bi-directional WebSocket connection, an anti-sniping clock engine, and off-server media pipeline using Amazon S3 or DigitalOcean Spaces. We'll provide a fully functional real-time automotive auction site with all the required features, including Stripe Connect integration and analytics tracking pixels. Can you please share more details about your expected timeline and budget for this project? Feel free to message us to discuss the details! — Webbook Studio
$5,300 USD in 30 days
9.3
9.3

Piston! As a seasoned veteran with over 19 years of industry expertise and a remarkable track record of completing 483+ successful projects, I am confident in my ability to deliver the comprehensive solution your real-time automotive auction site needs. My extensive knowledge in Full Stack Development including technologies such as HTML, JavaScript, PHP, Stripe, and Web Development are highly relevant to your project's requirements. Throughout my career, I have had the pleasure of working on various WordPress development projects which involved using Elementor Pro (similar to your requirement). Coupled with my proven experience with live data streaming applications utilizing WebSockets, you can count on me to build the 100% Live Connection feature that keeps your auction site responsive and crash-free, even at peak traffic. Can we discuss and confirm the requirements? Thanks, SBM
$7,500 USD in 45 days
9.2
9.2

PISTON Hi — Elias here from Miami. I see you're looking to build a real-time automotive auction site with a WordPress frontend. The goal is to create a platform that connects buyers and sellers while ensuring a smooth user experience. What usually matters most here is scalability and real-time performance. A common issue in systems like this is handling concurrent bids without losing data integrity. The tricky part is ensuring that the auction logic operates flawlessly, especially as user numbers grow. My approach would focus on a robust architecture using WordPress, complemented by a well-structured backend. I’d implement efficient state management and use Amazon S3 for media storage to improve load times. This way, we can maintain a responsive interface while future-proofing for expansion. I've worked on similar platforms requiring complex integrations and real-time data handling, so I'm familiar with common pitfalls and how to avoid them. A few questions to better understand the scope: Q1 – What specific user roles do you envision for buyers and sellers? Q2 – Are there particular payment gateways or integrations you have in mind beyond Stripe? Q3 – How do you plan to manage notifications during the auction process? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$8,000 USD in 29 days
8.5
8.5

As an experienced and certified full-stack developer with a strong background in WordPress and real-time data streaming, I'm confident that I can meet and exceed your expectations for your automotive auction site. My proficiency with WordPress (including Elementor) and my extensive experience crafting high-performance websites make me the ideal candidate for this project. I specialize in creating custom functionalities, developing scalable solutions, and ensuring the highest standards of quality for all my projects. I've successfully utilized WebSockets for various previous projects, notably high-traffic marketplaces and real-time data streaming applications. I understand the crucial importance of maintaining a permanent bidirectional connection without any latency or page reloads to enhance user engagement. Moreover, creating an anti-sniping clock engine and configuring an off-server media pipeline are tasks that I am well versed in. Another important asset that I bring to the table is my expertise in integrating Stripe Connect - a skill that will be vital for setting up secure credit card vaulting as per your project requirements. Additionally, my familiarity with Google Analytics, Google Tag Manager, GA4, and Meta Tracking Pixel opens up possibilities for us to accurately track user account registrations and completed vehicle submissions using your advertising budget.
$7,500 USD in 7 days
8.2
8.2

Piston Hello!, I am a US-based senior software engineer(frontend, backend, ecommerce, etc) and I read your Real-Time Automotive Auction Site details carefully. This is the kind of project where the details really matter: live bidding, WordPress front end, secure payments, S3 media handling, and a smooth admin experience. I’ve spent about 15 years building production-grade PHP, JavaScript, WordPress, HTML, Stripe, and cloud-based systems, including real-time web apps and marketplace-style platforms. My approach would be: 1) map the auction flow and user roles, 2) build the WordPress/Elementor front end, 3) implement live auction logic and Stripe payment handling, 4) connect Amazon S3 and DigitalOcean hosting, and 5) test edge cases so bidding, checkout, and notifications are solid. A few relevant builds I’ve worked on include custom auction and marketplace sites, a vehicle inventory portal, and several WordPress-powered e-commerce platforms with payment and media workflows. Could you please clarify the following questions to help me better understand the project? 1) Do you want true real-time bidding via WebSockets/AJAX polling, or is near real-time acceptable? 2) Will the auction rules include proxy bidding, reserve prices, buy-now, and automatic bid increments? 3) Should Stripe handle deposits, full checkout, or both buyer payments and seller payouts? James Zappi
$8,500 USD in 26 days
6.9
6.9

Piston Hi, Our approach will decouple the real-time auction engine from WordPress by using WebSockets (Firebase, Supabase, or Pusher), ensuring live bid updates, countdown timers, bid history, and auction status changes with zero page refresh—even during peak traffic. We’ll implement anti-sniping logic that automatically extends auctions when bids arrive in the final two minutes. We’ll also build an optimized media pipeline where images are compressed to WebP and uploaded directly to Amazon S3 or DigitalOcean Spaces, while videos are embedded via YouTube to keep WordPress fast and lightweight. Our focus is on security, scalability, and performance, delivering a platform that feels as responsive as leading automotive auction sites. Looking forward to working with you. Infineosoft Price and time is placeholder
$7,500 USD in 45 days
7.1
7.1

Piston I can implement the auction interface in Elementor while isolating bidding, clocks, payments, and event delivery from WordPress. I recommend a dedicated TypeScript service with PostgreSQL, Redis, and WebSockets, using server-authoritative timestamps and atomic bid transactions. WordPress would manage editorial content only. The anti-sniping engine would extend auctions transactionally and broadcast signed state updates to every client. Media would upload directly to S3-compatible storage through presigned URLs, with queued WebP processing and YouTube embeds. Stripe Connect would use SetupIntents and PaymentIntents according to Stripe’s supported authorisation model, with webhooks, idempotency, reconciliation, and fee rules. Release timing cannot be guaranteed as instantaneous because card issuers control when holds disappear. No system can honestly guarantee zero latency or be “un-crashable”; I would instead design for measurable latency, horizontal scaling, reconnection, replayable events, monitoring, load testing, and graceful recovery. GTM, GA4, and Meta events would be validated without exposing sensitive bid or payment data. Relevant examples can be shared privately where client permissions allow. Question 1: Which Stripe Connect account model and countries will the marketplace support? Question 2: What peak concurrent viewers and bids per second should load testing target? Regards, Houssame
$7,500 USD in 7 days
6.4
6.4

Piston! As the founder of Web Crest, you can trust that I've assembled an efficient team at your disposal to expertly handle every aspect of this real-time automotive auction site project. With over a decade in the software development industry, we've honed our skills in Full Stack Development, HTML, PHP, Web Development, and WordPress - all intricately aligned with your project requirements. We completely understand the paramount importance of zero latency and seamless user experience in auction sites. To address these concerns effectively, we have hands-on experience with cutting-edge tools like Firebase Realtime DB, Supabase, and Pusher that perfectly meet your needs for 100% Live Connection and WebSocket integrations. Our deep understanding of handling high-traffic windows ensures we keep the listings up-to-date in real-time without compromising on efficiency or server performance. Moreover, our proficiency extends to creating robust bidding systems such as developing an "Anti-Sniping Clock Engine". This feature will actively reset your auction's countdown clock in the final two minutes if any new bids are placed - a fail-safe preventative to bid sniping which is popular among competitors like Bring a Trailer. Additionally, our ability to fuse disparate technologies smoothly makes us perfect for setting up an "Off-Server Media Pipeline". We can create a simple yet potent front-end submission form capable of handling sellers uploads of 60+ images and multiple videos.
$5,000 USD in 7 days
6.4
6.4

Piston! As a Senior Full Stack Developer with almost a decade of experience, I've had the privilege of contributing to several projects similar in nature to your Real-Time Automotive Auction Site. My extensive knowledge of technologies such as Flutter, React Native, Firebase, Supabase, and especially my expertise in building real-time applications using WebSockets positions me perfectly for this task. For one, I understand the importance of maintaining a stable system for high-traffic applications like yours. In previous projects, including e-commerce platforms and marketplace applications, I have extensively worked on API integrations under heavy loads while ensuring data security and performance which are all central to your idea. Moreover, my command over off-server media pipeline and configuring front-end submission forms will help prevent any chance of database bloat offering an optimized solution for image compression and hosting. Similarly, my mastery over Stripe Connect Integrations brilliantly aligns with your financial architecture needs. And last but not least, my familiarity with analytic integrations across platforms can help you effectively track your advertising budget resulting in better optimization and analysis.
$55,000 USD in 27 days
6.3
6.3

"Piston, the team at SoftwareLinkers are your go-to experts for developing and deploying efficient, high-traffic web solutions. With our solid background in Full Stack Development, HTML, PHP, and WordPress, we have the skills and experience to build a robust, secure and synchronized real-time automotive auction site exceeding your expectations." "As a highly-scalable solution is crucial for your platform, we'll create a dedicated data layer by seamlessly incorporating top-notch technologies such as Firebase Realtime DB, Supabase or Pusher to ensure zero crashes and error-free real-time updates of individual vehicle listings. Leverage upon our extensive API development experience, this smooth data-flo won’t interfere with the main database and yet will keep every connected screen updated in real time with absolutely no latency." "Furthermore, Security being at the core of transactions online, our expertise in Stripe Connect Integration ensures seamless credit card vaulting and pre-authorization token holds. This comprises release of holds immediately upon auction close for losing bidders—together with our dedication to on-time delivery and strong communication—makes us all the more equipped to deliver results for your project."
$8,500 USD in 42 days
6.5
6.5

Piston Hi, I understand this is not a standard Elementor marketplace. WordPress should manage content and presentation, while bidding, auction timing, payment authorization, and live events run through an independent backend built for concurrency. I have experience developing real-time applications, WebSocket services, Stripe workflows, cloud storage pipelines, and scalable API-driven platforms. I would implement server-authoritative bidding with atomic bid validation, synchronized countdowns, anti-sniping extensions, immutable bid history, reconnect recovery, and load testing for closing-window traffic. Seller media would upload directly to S3 or DigitalOcean Spaces using signed URLs, with background WebP processing and no WordPress media bottleneck. Stripe Connect would securely store payment methods, calculate the 2% fee with the $150 minimum, manage authorization holds, and release unsuccessful bidders through verified webhooks. I would also configure GTM, GA4, and Meta events for registrations, submissions, bids, and completed auctions. Delivery includes source code, deployment documentation, monitoring, and production testing. Relevant private project references can be shared during the discussion where permitted.
$8,000 USD in 80 days
5.2
5.2

Piston! As a seasoned Full Stack Developer with specialized knowledge in PHP and Web Development, I bring extensive experience designing, implementing, and scaling complex systems - just like your real-time automotive auction site. Utilizing my proficiencies in various Frontend and Backend technologies such as React.js, Node.js, Laravel, and more, I ensure the rapid transmission of data by correctly dividing the real-time data layer from your core WordPress website database. The skills that make me excel at what I do go beyond knowing how to implement real-time functions; I am skilled at finding creative solutions to demanding architectural challenges while maintaining top-notch security. Building an off-server media pipeline for compressing and routing files is one of the tasks in which my expertise shines through. Moreover, incorporating Stripe Connect Integration securely is also a forte. My prior work includes setting up similar systems with successful pre-authorization token holds for transactional purposes. To sum it up, my approach to project management additionally embodies focusing on long-term scalability and optimizing the user experience within a SaaS product environment. With my contribution on board, you can trust that your market will be steady-rocking!
$5,000 USD in 7 days
4.9
4.9

Piston , Real-Time Automotive Auction Site Development (WordPress + 100% WebSocket backend) matches what I build for mission-critical, high-traffic live events. I’ll decouple the real-time auction state from the WordPress database and implement a permanent bi-directional WebSocket flow so listing pages update bid amount, bid count, and chronological bid history without refresh. I will also build the anti-sniping logic: when a bid is placed in the final 2 minutes, the remaining timer resets to precisely 2 minutes and broadcasts instantly to every connected client. For seller media, I’ll set up a scalable off-server pipeline: compress photos to WebP and upload directly to Amazon S3 (or DigitalOcean Spaces) to prevent WP DB bloat; handle videos via YouTube iframe delivery. For payments, I’ll integrate Stripe Connect with secure tokenization and pre-authorization holds for the 2% buyer fee with a strict $150 minimum, releasing holds promptly for losing bidders at auction close. Finally, I’ll implement verified conversion tracking across Google Tag Manager, GA4, and the Meta Pixel for registrations and completed vehicle submissions, so your $4,000/month ad spend maps cleanly to outcomes.
$5,000 USD in 7 days
4.9
4.9

Piston Your architecture is exactly the right approach for a high-traffic auction platform. Rather than relying on WordPress for live bidding, I would keep Elementor focused on presentation while building a dedicated real-time bidding service using WebSockets (Supabase Realtime/Firebase or a custom WebSocket server), ensuring instant bid, countdown, and bid-history updates without page refreshes. I'll implement anti-sniping logic, direct media uploads to S3/DigitalOcean with automatic WebP conversion, secure Stripe Connect pre-authorizations with automatic hold release, and complete GTM, GA4, and Meta Pixel tracking. The backend will be designed for reliability, scalability, and fault tolerance so peak auction endings remain smooth under heavy traffic. I have experience building real-time platforms, API integrations, payment workflows, and scalable backend architectures using WebSockets, Node.js, PHP, and cloud services. I'd be happy to discuss the best tech stack, deployment strategy, and provide a detailed implementation plan for a production-ready auction platform.
$5,000 USD in 7 days
4.9
4.9

Hi, there. Piston "REAL TIME AUTOMOTIVE AUCTION MARKETPLACE" - you need live bidding that stays reliable during peak closing traffic. I will separate the real time bidding service from WordPress with WebSockets and object storage because it keeps auction traffic away from the CMS. I'll focus on persistent bid synchronization, anti sniping timer logic, atomic bid validation, Stripe Connect hold and release flow, direct S3 uploads with WebP processing, and failover handling so every connected bidder sees the same state instantly. Can you share whether you prefer Firebase, Supabase, or Pusher for the live layer? Best regards.
$5,000 USD in 22 days
4.4
4.4

Piston Hello, I understand you need a real-time automotive auction platform where bidding, countdown timers, and bid history update instantly without page refreshes while keeping WordPress focused on content management. I can build a scalable solution using WordPress/Elementor with a dedicated WebSocket backend (Firebase, Supabase, or Pusher) to handle live auctions. The platform will support real-time bidding, anti-sniping timer extensions, optimized media uploads to Amazon S3 or DigitalOcean Spaces, Stripe Connect integration, and analytics through GTM, GA4, and Meta Pixel. I have experience developing full-stack web applications with real-time features, payment gateways, cloud storage, API integrations, and performance optimization. The architecture will be designed for reliability during high-traffic auction endings while remaining easy to maintain and expand. Looking forward to building a fast, stable automotive auction platform with a seamless live bidding experience. Thanks.
$6,870 USD in 30 days
4.4
4.4

Hi, Piston Your architecture requires separating the real-time auction engine from WordPress so Elementor serves only as the presentation layer while WebSockets handle bidding, countdown synchronization, bid history, and live updates without touching the WP database, ensuring stability during high-traffic auction closings. I have experience building real-time platforms with WebSockets, Firebase/Supabase, Stripe integrations, and scalable cloud storage, and I would implement a dedicated real-time backend with an anti-sniping engine, secure Stripe Connect pre-authorizations with automatic hold releases, direct media uploads to Amazon S3/DigitalOcean Spaces with WebP optimization, and seamless WordPress integration via APIs while configuring GA4, GTM, and Meta Pixel event tracking for accurate conversion attribution. I understand the need for a Bring a Trailer–style bidding experience where every connected client stays perfectly synchronized with zero page refreshes, even under heavy concurrent bidding. I'd be happy to discuss the architecture in more detail and review your requirements together. Kashif. Thanks.
$9,000 USD in 60 days
3.4
3.4

Piston Hello, The main challenge here is not the WordPress frontend — it is building a reliable real-time auction engine that keeps bidding state, timers, and user activity synchronized during peak closing periods. I would approach this by keeping WordPress as the presentation/content layer and moving auction-critical operations into a dedicated real-time backend with WebSocket-based updates, server-side bid validation, anti-sniping logic, and proper event handling to prevent race conditions. The media pipeline, payment authorization flow, and analytics tracking would also be separated into reliable services rather than adding load to WordPress. I have experience building production backend systems, API integrations, automation platforms, and real-time data processing solutions where reliability and accurate state management are critical. My sports betting automation work also involved handling live data flows and time-sensitive processing. A couple of questions: what peak concurrent bidders do you expect during auction closing windows, and do you already have a preferred WebSocket infrastructure? I can review the current architecture requirements and propose the implementation approach. Regards, loannis
$9,000 USD in 25 days
3.0
3.0

Piston! As you're in search of a top-tier Full-Stack Developer for your Real-Time Automotive Auction Site, I am confident that my expertise and skills make me the ideal match for this project. With proficiency in Web Development with a special focus on WordPress, JavaScript, HTML, PHP, I have successfully accomplished various projects involving demanding real-time operations and large datasets management. My comprehensive understanding of WordPress and familiarity with Elementor Pro will guarantee not only a visually appealing frontend layout but also seamless performance throughout high-traffic windows. Building a highly optimized website structure that prevents crashes while offering a Bring A Trailer like feel requires nuanced expertise - an area I've excelled in. Moreover, my extensive experience with integrating APIs (such as Firebase, Pusher) into applications and working with WebSocket technologies sets me apart from others. I will decisively pursue the setup of the real-time data layer you require to ensure that the countdown clock logic operates flawlessly, even within two minutes of auction closing. In addition to these technical competencies, I bring a proactive and collaborative approach to all my projects ensuring on-time delivery with long-term support. Let's talk about how we can bring your transformative idea into reality.
$7,500 USD in 7 days
2.1
2.1

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$30-250 USD
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$250-750 USD
$250-750 USD
₹12500-37500 INR