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We are seeking an experienced full stack developer to create a wine valuation application. The app will need to handle large datasets, integrate APIs for seamless data exchange, and provide distinct access levels for both admin and consumer users. The ideal candidate will have a strong background in web development and experience with database management. If you are passionate about building innovative applications and have the skills to deliver a robust solution, we would love to hear from you. Build a cloud‑hosted, API‑first Wine Valuation Platform that: Ingests auction & retail raw data into a Data Lake (GCS). Processes & normalizes into a Processed Data Layer (Cloud SQL). Maintains rich metadata & aggregates (mean, std dev, min/max, last value, clearance rate) over an admin‑configurable window. Exposes REST APIs for CRUD, valuations (single & batch), reporting, scheduling, and integrations (e.g., Oracle NetSuite, AuctionWorx, Shopify). Provides a React SPA admin UI (product management, job scheduling, reporting). Authenticates users & services via Firebase Auth (JWT). Deploys via GitHub Actions → Docker → Google Cloud Run with IaC via Terraform. We're building a next-generation valuation and product intelligence platform designed to handle millions of rows of historical product and sales data, run valuations, and support powerful integrations. We’re seeking experienced full-stack or backend developers to build the first release of this platform within a 3-month timeframe. Key Points: Build a web-based valuation tool hosted on GCP (but interoperable with other cloud providers) The system must be built as microservices and allow for direct access to individual services from external systems (with full auth for security). Each service must be independently callable by external systems (via open API standards) and secured via robust auth Expected integrations: Oracle NetSuite, Shopify, AuctionWorx, internal tools API-first design: All major features must be exposed via REST (or gRPC if justified) Cloud SQL (PostgreSQL) will be the main DB, hosted on GCP Heavy data processing involved (cleansing, deduping, rule-based matching, trend analysis, etc.) Rule based valuation logic to provide a customisable valuation algorithm that can be adapted. Should allow for weighting of rules (eg, data from source A is more relevant than sources B or C) For performance, we would expect pre-computed aggregates that must be kept updated on a scheduled and triggered basis (ie, nightly updates + subset updates triggered by ingesting new data). We would prefer the ability to handle custom and on-demand queries as well to ensure flexibility. Consumer users should have the ability to create, update, and manage their own lists of wines (their private collections) which can be valued at any time using the system. This data should also be used for learnings of product demand, consumer preferences (suggested products for consumer A will be influenced when browsing our website based on their buying history AND their current private collection in this system), etc. The system should use integrated systems and cleaned raw data to build and maintain a substantial and robust source of truth master database of products which can be called by external systems to extract product data (tasting notes, pricing historics, demand, product metadata, etc) Expected skills: Strong experience in JavaScript (Node.js) and/or Python Experience with RESTful API design, auth (OAuth2, Firebase Auth, etc.), and CI/CD pipelines (GitHub Actions or similar) Good understanding of microservice architecture and secure inter-service communication Familiarity with GCP services (Cloud Run, Cloud SQL, GCS, Pub/Sub, etc.) Data processing & analytics (background in ETL, deduping, or rule engines is a plus) Experience working with cloud environments such as AWS, Heroku, or GCP Code must be well-documented and built for future extensibility The Stack Languages we use: JavaScript (Node.js), TypeScript, Python Backend: REST APIs, Microservices, Cloud Run Frontend: Lightweight SPA or component-based admin portal Database: PostgreSQL (Cloud SQL) Hosting: GCP (experience with AWS and Heroku also important) Version Control: GitHub Other Systems We Use: NetSuite, Shopify, AuctionWorx, Octoparse Please provide in your submission: A brief cover/introduction Relevant experience or case studies (especially in JS/Python, GCP, microservices) GitHub or code samples (if available) Expected timeline for this project is no more than 3 months, with the potential for ongoing projects pending performance on this project.
Project ID: 39716131
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Active 12 days ago
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17 freelancers are bidding on average $33 AUD/hour for this job

Hello, I'm excited about the opportunity to develop your wine valuation application. With my extensive experience in both JavaScript and Python, coupled with a solid background in building robust web applications and managing databases, I can help you create a powerful platform that meets all your specifications. My approach will involve developing a cloud-based solution that efficiently ingests and processes data, ensuring that it seamlessly integrates with services like Oracle NetSuite and Shopify while adhering to your stringent security measures. I understand that you need an API-first design with microservices architecture, and I will focus on creating a scalable, maintainable system that supports extensive data processing requirements. Moreover, I will ensure that user experience is prioritized with an intuitive admin UI built in React. What are the key performance metrics you expect to measure for this application once it's deployed? Thanks, Muhammad Awais
$38 AUD in 39 days
9.0
9.0

Hi Luke. I'm a software developer which have 5+ years of experience on Python, PostgreSQL, JavaScript As you can see from my work history on my profile, I can handle your project perfectly. And I will provide solution and my experience for this project via a private chat. Let's discuss in more details via chat. Thank you for the opportunity to bid. I look forward to a mutually beneficial collaboration for both parties. Best regards. Ruslan D.
$20 AUD in 40 days
5.0
5.0

Hello Luke, I have checked your job description and I’m confident I can complete exactly what you need. I have extensive experience with full-stack development, particularly in JavaScript (Node.js) and Python, as well as a strong background in building RESTful APIs and managing CI/CD pipelines using GitHub Actions. This job aligns perfectly with my skills and experience, especially in developing cloud-hosted applications and working with microservices architecture on GCP. I understand the importance of handling large datasets effectively and maintaining a secure and scalable application. I would love to chat further about your wine valuation app and how I can help you realize your vision! Best regards, Andrii
$38 AUD in 17 days
4.1
4.1

Dear Luke, I am excited to express my interest in developing the wine valuation application. This innovative project aligns perfectly with my expertise in full-stack development, particularly within cloud-based environments. With extensive experience in JavaScript, Python, and GCP, I am skilled in building microservices and creating RESTful APIs that ensure secure integrations and efficient data processing. I have successfully implemented robust systems and am eager to contribute to your next-generation valuation platform. Warmest regards, Helen
$77 AUD in 34 days
2.6
2.6

Hello Luke C., We are eager to seize this opportunity and will work diligently until you are 100% satisfied with our results. We did the same work 3 months ago. We are an expert team which have many years of experience on JavaScript, Python, PostgreSQL, Data Analytics, Data Cleansing, Full Stack Development, Google Cloud Platform, API Integration, Terraform, REST API Please join me in chat so we can discuss your requirements in detail. Regards
$18 AUD in 40 days
2.0
2.0

Hello Luke, I am excited about the opportunity to develop your Wine Valuation App, leveraging my 15 years of experience in software development, particularly in full-stack environments. My expertise in JavaScript, Python, and cloud technologies like GCP, coupled with my understanding of microservices and RESTful API design, will ensure we create a robust and scalable platform. I have a strong background in handling large datasets and am proficient in data analytics and processing, which aligns perfectly with the heavy data processing requirements of your project. I look forward to discussing how I can contribute to this innovative application. Thanks, Hardik
$30 AUD in 1 day
0.0
0.0

We don’t just bring technical skills — we bring clarity, efficiency, and care to every project. We understand what needs to get done, and we do it with precision, speed, and quality. Our focus is simple: Build modern, intuitive digital systems that feel effortless for users — and work flawlessly behind the scenes. With a strong foundation in modern web design and development, we specialize in crafting clean, responsive, and user-focused experiences. From streamlined websites to fully customized digital solutions, we create systems that are not only visually compelling but also highly functional and scalable. Our Services: - Custom Web Design & Development - Responsive UI/UX Design - Front-End Architecture - Landing Pages & Microsites - Website Optimization & Maintenance - Chatbots & Interactive Features Why Work With Us: - Fast delivery without sacrificing quality - Clear, reliable communication - Flexible and feedback-driven collaboration - A passion for clean code and clean design Let’s chat and bring your project to life with our expertise.
$15 AUD in 30 days
0.0
0.0

Hey Mate Waseem E., Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Terraform, Full Stack Development, JavaScript, Python, Data Cleansing, Data Analytics, Google Cloud Platform, PostgreSQL, API Integration and REST API. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Talk to you soon
$77 AUD in 20 days
0.0
0.0

Hello Luke, Our company, Codenia Technologies LLP, with over 10 years of experience in JavaScript, has carefully read the requirements for the Wine Valuation App project. We propose to build a cloud-hosted Wine Valuation Platform that ingests auction and retail data, processes and normalizes it in a Processed Data Layer on Cloud SQL, and exposes REST APIs for CRUD operations, valuations, reporting, and integrations. To discuss the project in more detail, we would like to connect with you in a chat. Your innovative project aligns with our expertise, and we are excited about the opportunity to collaborate. Thanks, Rupesh Kumar
$20 AUD in 40 days
0.0
0.0

Hello Luke C., We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on JavaScript, Python, PostgreSQL, Data Analytics, Data Cleansing, Full Stack Development, Google Cloud Platform, API Integration, Terraform, REST API Please come over chat and discuss your requirement in a detailed way. Regards
$20 AUD in 40 days
0.0
0.0

I am a perfect fit for your project as an experienced full stack developer. Your need for a Wine Valuation Platform aligns with my expertise in building cloud-hosted applications with microservices architecture. While I am new to Freelancer, I have extensive experience in JavaScript, RESTful API design, and GCP services. I am confident in delivering a clean, professional, and user-friendly solution that integrates seamlessly with external systems. I would love to chat more about your project! Regards, Wiandru van Rooyen
$15 AUD in 30 days
0.0
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