Senior Full-Stack Developer Needed – NestJS + React/TypeScript Fuel Levy Pricing Engine for Rideshare Platform

@widuIT

Hi — this is the right kind of problem for a clean, backend-driven engine: keep the commercial logic private, make calculations auditable, and leave a modular NestJS foundation that can grow into a broader transport pricing system. I’ll implement a structured NestJS codebase (TypeScript + Prisma + PostgreSQL) with separate modules for Vehicles, Fuel Pricing, and Levy Calculations. Vehicles are stored as “approved records” with official consumption data (L/100km or kWh/100km), and the pricing layer stores fuel/electricity snapshots by postcode/suburb/fuel type with a clear fallback strategy when local data is missing. The levy endpoint then resolves the approved vehicle, selects the best available local price, calculates the levy with a sensible rounding policy, returns a structured breakdown, and writes a calculation log to the database for traceability. The API stays secure and server-only: validation, access controls for admin endpoints, and a design that prevents exposing the formula logic or inputs in the browser beyond the final levy breakdown. I’ll ship this with clear environment setup, migrations, and a handover-ready README so it drops into your platform cleanly and supports future stages (feeds, approval workflows, pricing versioning, anti-gaming). Nico – widuIT - Top Freelancer LATAM

@managersingh

Hi there! I’ve read through your requirements for the Queensland-based levy engine, and I’m confident I can build a solid, production-ready foundation using NestJS and Prisma. I focus on clean, modular architecture keeping that sensitive pricing logic strictly server-side within a dedicated calculation module. I have extensive experience building secure TypeScript APIs where accuracy is non-negotiable. I'll ensure the Prisma schema handles the vehicle data and local pricing snapshots efficiently, while the service layer manages the specific fuel/EV formulas with proper fallback logic. I’m happy to assist with the future data feed integrations and admin workflows once this core engine is live. I'll attach a few examples of similar pricing/SaaS backends I’ve architected. Best regards, Singh

@divumanocha

Hi With a robust career spanning over 12 years, I bring unmatched proficiency in building secure backend-driven systems, especially with tools like NestJS, React, TailwindCSS v3, and TypeScript. My portfolio showcases immense experience in transport and logistics systems, which aligns perfectly with your rideshare platform needs. Creating an advanced fuel levy pricing engine won't be just a task for me; it will be an opportunity to craft an innovative solution that exceeds your expectations. Having dealt extensively with confidential commercial data and pricing engines, I deeply understand the significance of maintaining privacy and security when it comes to server-side logic. To ensure a top-notch backend structure, I'll create separate modules for vehicles, fuel pricing, and levy calculations employing Prisma models, DTOs, controllers, services, validations whilst taking care of environment configuration. My comprehensive understanding of transportation projects lends itself well for your project needs – from designing a scalable backend architecture to incorporating formula logics like the one you've shared. Thanks....

@kamran2012

Hello there, I will build the fuel levy pricing engine as a modular NestJS backend with separate modules for vehicles, fuel snapshots, and levy calculations, using Prisma with PostgreSQL and strict TypeScript throughout. The API will return only the final levy breakdown without exposing formula constants or intermediate values in any response. For security, I will keep all pricing logic within internal service methods that are never directly mapped to controller routes. The DTOs will only expose the calculated result and a reference ID, so even if someone inspects API responses, the consumption rates and pricing formulas stay hidden server-side. Questions: 1) For the Queensland fuel price snapshots, do you have a specific data source in mind, or should I design the ingestion layer for manual entry first? 2) Should the calculation log store raw input values for audit purposes, or just the final result and vehicle reference? Ready to start whenever you are. Kamran

@seefattechnologi

Definitely, I will achieve your given goals for the Fuel Levy Pricing Engine for the Rideshare Platform I will structure the project with separate modules for vehicles, fuel pricing, and levy calculations, ensuring all pricing logic stays fully server-side and protected. The system will retrieve approved vehicle data, apply the required formulas using local fuel pricing, return a clear levy breakdown, and log calculations to the database. The API will be production-ready and fully compatible with your React + Tailwind + TypeScript frontend. I focus on writing scalable, maintainable backend code, and I’d be happy to help with future stages like fuel data integration and platform expansion. I have some queries to give you accurate time and price Best regards.

@Julian29

Hello, Fuel Levy Pricing Engine Development for Rideshare Platform I have similar kind of expertise and work experience. I have 10+ years of full stack development experience, I specialize in building secure backend driven systems using NestJS, TypeScript, Prisma, and PostgreSQL. I’ve developed pricing engines, financial calculation APIs, and scalable SaaS platforms where business logic must remain fully protected on the server. For your rideshare platform, I will build a clean modular NestJS architecture that securely calculates fuel or energy levy using approved vehicle data and regional fuel pricing while maintaining strong validation Key Features -->> Modular NestJS backend with vehicles, pricing, and levy calculation modules -->> Secure server side pricing engine with protected commercial logic -->> Prisma schema with PostgreSQL models for vehicles, fuel snapshots, and calculation logs -->> Accurate levy calculation using vehicle consumption data and local pricing inputs -->> API endpoints for vehicle management, fuel price snapshots, and levy calculation -->> Validation to ensure only approved vehicles are used in pricing calculations Approach -->> Architect scalable NestJS project structure with DTOs, services, and controllers -->> Implement Prisma models and database schema for vehicle and fuel data -->> Build secure API endpoints with strict validation and logging Best regards, Julian

@ZohaibRoy

⭐⭐⭐⭐⭐ Build a Secure Fuel Levy Pricing Engine with NestJS & React/TypeScript ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you're looking for a Senior Full-Stack Developer for your rideshare platform. You don’t need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for full-stack development. I will build a secure and scalable backend for your fuel levy pricing engine using the latest technologies like NestJS, TypeScript, and PostgreSQL. ➡️ Why Me? I can easily do your project as I have 5 years of experience in full-stack development, focusing on backend architecture, API design, and database management. My expertise includes Node.js, NestJS, TypeScript, and Prisma. I also have a strong grip on secure API design and scalable architecture. ➡️ Let’s have a quick chat to discuss your project in detail. I can show you samples of my previous work and how I can ensure the pricing engine remains private and secure. Looking forward to discussing with you in chat. ➡️ Skills & Experience: ✅ Node.js ✅ NestJS ✅ TypeScript ✅ Prisma ✅ PostgreSQL ✅ ReactJS ✅ TailwindCSS ✅ API Design ✅ Secure Development ✅ Modular Architecture ✅ Database Management ✅ Dynamic Pricing Waiting for your response! Best Regards, Zohaib

@Webtechfusion23

Hi, ➡️ I read your project description, you need a Senior Full-Stack Developer for a NestJS + React/TypeScript fuel levy pricing engine. I possess extensive experience in building secure, scalable backend systems using NestJS, TypeScript, and PostgreSQL, perfectly aligned with your requirements. ⏺️ I specialize in developing complex backend architectures and have successfully delivered projects involving dynamic pricing models and secure API integrations. My approach ensures that your rideshare platforms pricing engine will be robust, with modular code, comprehensive API endpoints, and secure data handling, specifically tailored to handle various vehicle and fuel types as per your project scope. Regards, Aftab Ahmad Full Stack Developer (12 Years of Experience)

@Rekhathakur

As experts in backend and frontend development, my team at WellSpring Infotech is perfectly equipped to tackle the complexity of your Senior Full-stack Developer requirement. With a vast array of technological expertise – including React, Node.js and TypeScript – as well as a deep appreciation for the security features your projects demands, we're confident that not only our technical skills but our commercial acumen make us uniquely suited to this job. We understand that you need a robust backend engine that can handle numerous calculations while securely storing sensitive data. Our considerable experience in building scalable applications for differing industries, across which we've successfully delivered on similar technically intricate tasks, ensures we’re aware of what it takes to build maintainable systems. Beyond developing functionalities per your specification, we add real value by foreseeing potential hurdles down the line and building fall-back solutions – a skillset that will undeniably benefit you as you plan for the future. Most importantly, we appreciate that this isn't an 'out-the-box' job. It requires thorough architecture, diligent problem-solving, modular design approach and a consistently production-oriented mentality - all traits engrained in our workflow. thanks....

@DeveloperStation

Hi there, We’ve built several secure, production-ready systems with NestJS, including a dynamic pricing engine for a logistics platform that used real-time data to optimize driver payouts. We also developed a fully-fledged admin panel with features like vehicle management, driver onboarding, and document verification. We understand that a pricing engine is only as good as the data it uses. That’s why we’ve implemented advanced data validation and management systems in our previous projects, ensuring that only reliable data is used for critical calculations. In addition to backend expertise, I can provide valuable insights on frontend development, CI/CD pipelines, and cloud infrastructure management, as I’ve worked extensively with React and Vue. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m eager to learn more about your exciting project. Best, Adil

@elishadiah326

Hi, Thank you for posting this good task! I understand your goal: build a secure, production-ready fuel/energy levy pricing engine for your rideshare platform where all commercial pricing logic remains strictly server-side, using NestJS + TypeScript + Prisma + PostgreSQL, with APIs consumable by a React + Tailwind frontend. I have strong experience designing modular NestJS backends and pricing engines, including systems where financial logic must remain private and auditable. For this project, I'd structure the project with clear modules: Vehicles, FuelPricing, LevyEngine, and CalculationLogs, using DTO validation, Prisma schemas, and service-layer isolation to keep the pricing logic fully internal. The levy calculation service would retrieve the approved vehicle record, resolve local fuel pricing, run the formula, apply rounding rules, and store a calculation log for auditing. For scalability, I would also introduce versioned pricing logic, strict vehicle approval flags, and rate-limited API access to prevent abuse. Estimated timeline: 2~3 weeks A few questions: 1. Will Queensland fuel data come from an API feed or manual admin ingestion initially? 2. Should calculation logs include trip IDs for future rideshare reconciliation? I’d also be happy to support *future pricing, driver payout, and platform API expansion. Best regards, Diah

@sagarjain4010

Hi, Your project is very similar to backend systems I’ve built where calculation logic and pricing rules must stay secure on the server. I can help build a clean, production-ready NestJS backend for your fuel/energy levy pricing engine. From your description, you need a NestJS + TypeScript backend that stores approved vehicle data, ingests fuel pricing snapshots, and calculates trip-based fuel or energy levies through secure API endpoints for a React + Tailwind frontend. Why me: • Experience with Node.js, NestJS, TypeScript, Prisma, and PostgreSQL • Built secure APIs with protected pricing/financial logic • Focus on modular architecture and clean, scalable code • Clear Git workflow with well-structured commits My approach would be to structure the backend into Vehicles, Fuel Pricing, and Levy Engine modules using Prisma models, DTO validation, and service layers. The levy calculation will run entirely server-side so the pricing logic remains protected, with validation to ensure only approved vehicles and verified pricing data are used. ✔I’d like to clarify a few things - Will the Queensland fuel price data come from an API or periodic snapshot uploads? - Do you want admin authentication for vehicle approval in this phase? Best regards, Sagar

@ishtiaqn2o

Hi, I’ve carefully reviewed your requirement for building a secure backend-driven fuel/energy levy pricing engine for your Queensland rideshare platform. The need to keep the commercial pricing logic fully server-side, while structuring a clean and scalable backend with NestJS, TypeScript, Prisma, and PostgreSQL, is very clear. This aligns closely with my experience building backend-heavy SaaS systems and pricing/logic-driven platforms. I can structure the project with proper NestJS modules (vehicles, fuel pricing, levy engine), Prisma schema, DTO validation, and secure API endpoints while ensuring the levy calculation logic remains completely private and production-ready. I focus on clean architecture, maintainable code, and scalable backend foundations, so the system can easily support future features like real fuel price feeds, approval workflows, and pricing version control. Kind Regards Ishtiaq

@jayprakashyadav

I’m a Full Stack Developer with strong experience in NestJS, React, TypeScript, and Node.js, along with Prisma and PostgreSQL for building secure and scalable backend systems. I specialize in developing clean architectures, secure APIs, and backend logic that protects critical business processes. I have worked on systems involving transport and financial calculation engines, which gives me practical experience in handling complex logic similar to your requirements. I can build a structured backend with features like vehicle management, fuel pricing systems, and levy calculation APIs. Additionally, I can implement admin approval workflows, pricing version control, and anti-manipulation protections to ensure the system remains secure and reliable. I’d be happy to discuss your project and help build a robust solution. Thanks, Jay

@hireageek

Hi, I am a top freelancer from California with extensive experience in developing robust systems using NestJS, TypeScript, and Prisma. I am confident that I can build a secure, production-ready fuel levy and pricing engine tailored for your rideshare platform. My solid understanding of API design will ensure that sensitive pricing logic remains server-side, ensuring both security and scalability for future enhancements. Having successfully completed similar projects, my approach will focus on creating a modular architecture with clean folder structures and comprehensive API endpoints, facilitating easy integration with your frontend built with React and TailwindCSS. I will ensure that the backend efficiently calculates levies based on the complex formulas you've outlined while maintaining high performance and reliability. Let’s get started on this exciting challenge! I would love to discuss the project further. How do you currently handle vehicle data and pricing feeds, and where would you like to see additional features integrated in the future? Thanks,

@purplemaestro

Hi. I'm a Senior Full-Stack Developer with 8+ years of experience building scalable NestJS backends and React frontends. I've delivered multiple pricing engine systems and real-time data integrations, including fuel price APIs and vehicle management workflows. I understand the complexity of levy calculations and can implement both admin approval workflows and dynamic fuel pricing snapshots efficiently. I'm available to start immediately and can provide a detailed milestone breakdown within 24 hours. Let's discuss your specific requirements on the clarification board to ensure we align on vehicle datasets and fuel price sourcing before I finalize my bid.

@XanvraTECH

Hello, I'm confident my expertise and experience as a full-stack developer align well with your exacting requirements. Firstly, my extensive knowledge of backend-driven systems using Node.js, NestJS, TypeScript, Prisma, and PostgreSQL ensures that I can build a secure, modular, and scalable architecture for your pricing engine. I have also worked on projects with similar complexities in dynamic pricing and financial calculation engines. As such, I'm intimately familiar with the significance of maintaining server-side confidentiality of sensitive data and formulas to avoid any exposure risks - an aspect that you rightly emphasized in your project brief. Lastly, apart from fulfilling your primary project scope of compliant prisma models, DTOs, controllers, and services for vehicle-specific data and live fuel pricing inputs; I can also assist you in future integrations like real Queensland fuel price data feeds, admin approval workflows for vehicle validation, pricing version control amongst several others which might be imperative to optimize the broader transport platform API architecture. Lets Connect

@mahig47

Hello! As per your project post, you’re looking to build a full-stack NestJS + React/TypeScript fuel levy pricing engine for your Queensland-based rideshare platform. The goal is to create a secure, modular backend that calculates fair trip-based fuel or energy levies for petrol, diesel, hybrid, and EV vehicles using approved vehicle data and local fuel pricing inputs, while keeping commercial logic fully server-side. My focus will be on delivering a production-ready NestJS backend featuring clean module separation for vehicles, fuel pricing, and levy calculations. The system will include Prisma models, DTOs, controllers, and services, environment configuration, secure database handling of approved vehicle records, fuel price ingestion by postcode/suburb/fuel type, and a fully validated levy calculation engine with logging. The API endpoints will cover creating and retrieving vehicles. I specialize in building scalable, secure Node.js/NestJS systems with complex financial or transport logic. The project will be structured for maintainability, production performance, and future expansion, including integrations for live fuel feeds, admin workflows, and transport platform APIs. The codebase will follow professional TypeScript standards with clear modular architecture, validation, and audit trails. Let’s connect to define the module structure, API contracts, and logging strategy so we can build a robust, secure, and scalable fuel levy engine. Best regards, Nikita Gupta.

@blackrockwise

Hello! I’m excited about your project requiring a Senior Full-Stack Developer to build a secure, scalable fuel levy pricing engine for your Queensland rideshare platform. I understand you need a professional NestJS and React/TypeScript solution, where pricing logic remains private and backend-driven. With extensive expertise in NestJS, TypeScript, Prisma, and PostgreSQL, I specialize in designing modular, maintainable API architectures that handle complex pricing and logistics computations. I have built secure backend systems with guarded commercial logic for SaaS and transport domains. For your project, I would architect a clean NestJS backend with well-separated modules for vehicles, fuel pricing ingestion, and levy calculation, applying robust validation and sensible fallback data handling. The API endpoints will support full CRUD and efficient calculation logging with security best practices. I will ensure the calculated data is safely processed on the server side, never exposed to the client, meeting your commercial confidentiality needs. I am happy to provide examples from previous TypeScript + Prisma work involving dynamic pricing engines and can discuss how best to structure the project for long-term extensibility and future integration of live fuel feeds. I look forward to collaborating and building a strong backend foundation to support your platform’s growth. Please feel free to reach out so we can discuss your requirements in more detail!