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# Full Stack Developer (Web + Mobile App) ## About it is a journey intelligence and execution platform focused on helping travelers discover and execute better journeys through: * Direct Train * Train + Train * Multi-leg Train Journeys * Future Train + Bus and Flight integrations Unlike traditional booking platforms, RailWise AI focuses on journey reliability, transfer intelligence, and successful end-to-end travel rather than simply displaying available trains. --- ## Current Status The project is already partially built. Current stack: * [login to view URL] Frontend * Node.js / Express Backend * TypeScript * MongoDB * AWS EC2 Deployment * Algorithm Engine (Routing + Scoring) Existing features include: * Direct train search * Train + Train routing * Multi-leg routing * Reliability scoring engine * OTP integration * MongoDB integration * MSG91 integration * RailYatri booking redirects * Backend deployment * Routing visualization * Session persistence The repository is available and contains a functioning routing and scoring system. --- ## Primary Responsibilities ### Phase 1 – Complete Existing Web Platform Review the current codebase and: * Complete unfinished frontend work * Complete production deployment * Complete testing and QA * Fix bugs and edge cases * Verify OTP authentication flow * Complete sorting and filtering * Improve responsiveness across devices * Review API structure and optimize where needed The goal is to make the current website production-ready. --- ### Phase 2 – Build Mobile Application Build a cross-platform mobile app connected to the same backend. Preferred: * React Native App should include: * Journey Search * Journey Results * Reliability Scores * Journey Details * OTP Login * Saved Journeys * User Profile The mobile app should reuse the existing backend APIs wherever possible. --- ## Important: Routing & Reliability Engine This is NOT a standard booking website. The core of RailWise AI is its routing and scoring engine. Current scoring includes: * Confirmation Probability * Delay Risk * Transfer Safety * Journey Complexity * Cost Efficiency We are looking for a developer who can understand and improve the existing logic rather than rewrite everything from scratch. --- ## Backend Improvements Required We want to add several new intelligence layers: ### Hard Reject Layer Reject obviously bad journeys before scoring. Examples: * Unsafe transfer times * Impossible connections * High-risk waitlists * Extremely risky night transfers --- ### Historical Journey Intelligence Build systems to collect and store: * Historical delays * Cancellation trends * Route reliability * Transfer reliability while minimizing API usage and infrastructure costs. --- ### Journey Outcome Tracking System This is a major part of the roadmap. Every generated journey should be stored and validated after its travel date. Example: Journey Generated: Gwalior → Bhopal → Mumbai Predicted Reliability: 91% After journey completion: Track: * Successful completion * Missed connection * Cancellation * Delay * Failure reason The system should create a growing journey intelligence database that improves future recommendations. --- ### Failure Analysis System Track: * Why journeys fail * Which routes fail most * Which stations cause missed connections * Which train combinations are unreliable This data should eventually influence future scoring. --- ### Station & Route Intelligence Create systems that learn: * Transfer success rates by station * Reliability by route * Historical delay patterns * Cancellation frequencies --- ### Future Learning Layer The architecture should support: * Feedback collection * Outcome validation * Dynamic score improvements * Confidence calibration * Future predictive modeling We are not looking for someone to build AI buzzwords. We want practical systems that improve journey success rates over time. --- ## What We Are Looking For Strong experience with: * [login to view URL] * Node.js / Express * TypeScript * MongoDB * React Native * API integrations * Performance optimization * Scalable architecture Bonus: * Transportation systems * Routing algorithms * Recommendation engines * Reliability scoring systems * Data-driven product design --- ## When Applying Please include: 1. Relevant projects 2. Experience with large codebases 3. Experience taking over existing projects 4. Mobile apps you have built 5. Your approach to improving journey reliability and recommendation systems 6. Estimated timeline after reviewing the repository The ideal candidate should be comfortable both completing the existing MVP and helping evolve RailWise AI into a journey intelligence platform.
Project ID: 40487170
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69 freelancers are bidding on average ₹9,769 INR for this job

With over a decade of experience as a freelance web and software developer, I bring a wealth of knowledge and technical expertise to tackle complex projects like RailWise AI. I specialize in building smart, scalable, and future-ready digital solutions - exactly what your project needs. My track record includes working with international clients across various industries, and I have tackled projects involving API integration, backend development, frontend development, JavaScript, mobile app development and MongoDB, all of which align directly with your project requirements. What sets me apart is not just the ability to write code, but the capacity to understand the underlying business goals and develop technology that adds tangible value to the users. RailWise AI's focus on journey reliability through routing and scoring highly resonates with my strengths. Instead of re-writing everything from scratch, I believe in understanding existing logic and improving on it - an approach that aligns perfectly with what you are looking for. I am also well-versed in technologies like React Native for successful cross-platform mobile app development, but more than the tech I am known for my agile and reliable execution without compromising on quality. Building on your partial work already done, I can complete the unfinished frontend work, improve responsiveness across devices as well as add new intelligence layers such as fail analysis system or future learning layer.
₹10,000 INR in 7 days
4.4
4.4

Hi, I've handled similar projects before and can get this completed quickly and professionally. I'll review the requirements, identify any potential issues upfront, and deliver a clean, reliable solution without unnecessary delays. Available to start immediately. Let's discuss the details and get this moving.
₹5,000 INR in 1 day
3.1
3.1

i am a full stack developer , i am the solo developer that i can makes the applications much faster then , i dont want advance payments
₹7,000 INR in 7 days
3.1
3.1

With over 8 years of experience in Native Android, iOS, React-Native, and Flutter development, I can confidently say that I am more than capable of completing the RailWise AI project. The skills I have acquired through my extensive career will effectively aid in improving the existing codebase for the frontend and ensure it is ready for production. My expertise also extends to backend development using Node.js/Express and MongoDB, being an excellent fit for your needed backend improvements. Additionally, my proficiency in React-Native positions me well to develop a cross-platform mobile app connected to your existing backend. My prior work on various apps like taxi booking, home service, and food ordering aligns with your desired features - journey search results, reliability scores, OTP login functionality etc., providing an assurance of quality deliverables. In essence, this project is not just about coding but also about understanding and enhancing the existing intelligent engine. My ability to build practical systems that improve journey success rates over time aligns perfectly with RailWise AI's need. My work is characterized by dedication to client satisfaction - something I believe we share as it is evident from my 100+ successful projects."
₹7,000 INR in 7 days
2.5
2.5

Hi, I can help with making your existing RailWise AI website production-ready with verified OTP auth, robust sorting/filtering, and a reliable, well-tested routing/scoring experience. I’ll start by reviewing the repo end-to-end, mapping the current API and frontend flows, then creating a focused QA plan to validate search → journey scoring → OTP → redirects. To reduce risk, I’ll keep changes small, add regression tests around edge cases, and log key journey outcomes. js screens are incomplete, and do you already have test coverage for routing/scoring and OTP? Once you share the current bug list, I can propose a clear Phase 1 timeline.
₹9,393 INR in 3 days
1.6
1.6

Hello , I checked your requirement and I can complete this project quickly and professionally. I have 5+ years experience in App & Web Development and have worked on similar projects before. What you will get: • Clean & optimized code • Fast delivery • Unlimited minor revisions • Clear communication I can start immediately and keep you updated daily. Let’s discuss your exact needs so I can deliver the best result. Best Regards, Saif Khan
₹1,500 INR in 1 day
1.2
1.2

Greetings I can surely help you for Travel Platform Full Stack Development half built I am in the IT industry since more than a decade and serve so many clients in building and rebuilding websites, software, and applications I have strong hands-on different cms like webflow, Wordpress, shopify, squarespace, wix and on different programming languages like PHP, Laravel, React, Node.js, HTML, CSS, And I did the migration from HTML to click funnels. I have made so many websites (E-commerce, WordPress, Classified admin, WooCommerce, etc.), bots, softwares, and Mobile applications (Android, IOS, and Huawei Play store) in my entire career. I have strong hands on both the front end and back end. Currently, I am part of the team who are dealing with miscellaneous tasks in dubizzle and Mzad Qatar including design and layouts and they both have more than 1 million users. I believe that you are looking for a web designer and for sure you will get your end desire result with plagiarism-free work and with better quality as I am assuring you this. Package deals can also be done for long-term collaboration as per the client's requirement. Kindly do come on chat so that we can discuss project details further more.
₹1,500 INR in 2 days
1.0
1.0

IF YOU'RE NOT HAPPY DON'T PAY. I recently completed a project very similar to this, achieving a significant reduction in load times. I'm new to Freelancer but bring experience from large-scale projects, including work alongside major companies like Microsoft and Google. Understanding your need for a clean, scalable, and reliable platform, I focus on getting the structure right from the start. Ready to start and discuss scope and pricing. If this aligns with your project, feel free to reach out to discuss scope and pricing. Regards, Patrick
₹6,250 INR in 7 days
0.0
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As an agile and scalable full-stack developer with over 5 years of experience, I would be a perfect fit for refactoring and completing your RailWise AI platform. I possess strong analytical skills and have a background in advanced routing analysis which aligns perfectly with your project's crucial needs. I promise to not only complete unfinished frontend work, deployment, and testing but also perform deep dives into the existing algorithm engine to maximize its intelligence. Apart from my technical abilities, my dedication and project management skills have resulted in 100% client satisfaction across 42+ countries. Your timeline is important to me, so you can expect quick responses within 2-3 hours alongside weekly or daily progress reports for maximum transparency. Not only this, but my in-depth knowledge in across time zones including EST, PST, MST, GMT will assure collaboration isn't hindered by distance. If given the opportunity I’ll use my expertise in React Native, Node.js and API Integrations to develop your mobile application flawlessly ensuring compatibility with the existing backend. Alongside delivering the journey intelligence database you need for your Platform’s scalability my driven creative approach will ensure that reliability and transfer intelligence are precise as per your requirements. Let's embark on this journey together!
₹7,000 INR in 7 days
0.0
0.0

Hi there ?, I’ve carefully reviewed your project titled "Travel Platform Full Stack Development half built" and can confidently deliver a production-ready solution with clean UI and smooth performance. Let's discuss your specific requirements — I can start right away!
₹4,200 INR in 7 days
0.0
0.0

With my extensive experience in Mobile App Development, I believe I am the ideal candidate to complete your Travel Platform project. I have a deep understanding of the entire development process from frontend to backend, and I specialize in React Native for cross-platform app creation, which aligns perfectly with your needs. Additionally, I have hands-on experience with the backend technologies you're currently using such as Node.js, TypeScript, and MongoDB. Moreover, I fully grasp the unique focus of RailWise AI on reliable journey execution rather than just booking systems and I can appreciate the importance of your existing routing and scoring engine as it forms the core of your platform. I am adept at analyzing existing codebases and enhancing them for optimal performance. Instead of rewriting everything from scratch, I believe in improving and building upon what already exists - a philosophy that aligns with your needs. This approach ensures continuity while significantly reducing development time. Finally, throughout my career, I have constantly prioritized not only project completion but providing long-term value to businesses through my work. I am committed to delivering clean, user-friendly solutions and optimizing performance for better journey experiences. RailWise AI can count on me to not only complete Phase 1 - making your current web platform production-ready - but also take on the challenge of building the Mobile Application while reusing backend APIs..
₹1,500 INR in 1 day
0.0
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Your travel platform's half-built status signals a need for urgent, expert intervention. With a vision to streamline direct, multi-leg journeys, I can elevate your web and mobile app using n8n for seamless automation, AI for personalized recommendations, and Python for robust back-end solutions. I understand that integrating diverse transportation modes like trains, buses, and flights efficiently is crucial for your success. My experience with Zoho and API integrations ensures that your platform is not only functional but also enhances user experience and operational efficiency. Let’s transform your vision into a fully operational product that travelers will love. Together, we'll refine your platform and facilitate better journeys for your users. Best regards, George | n8n & AI Automation Expert
₹7,000 INR in 7 days
0.0
0.0

Hi, I can help with Travel Platform Full Stack Development half built. My focus is websites, conversion-focused pages, and business automation, so I can move quickly from requirements into a working build without overcomplicating the scope. For this project I would start by confirming the exact workflow, assets, and success criteria, then build the first usable version, test the main user path, and tighten the result based on your feedback. I keep communication clear, work inside Freelancer, and avoid unsupported claims or shortcuts. If you share the current files, site, or workflow details, I can start with a practical implementation plan.
₹7,000 INR in 14 days
0.0
0.0

We’ve worked on a project with a very similar scope, giving me strong insight into delivering quality results efficiently. I understand the importance of a clean user-friendly UI for high-end customers. I'd love to chat about your project and walk away with a free consultation. Regards, Nabeel Ismail
₹5,650 INR in 7 days
0.0
0.0

Hello! I have reviewed your description carefully. I can help complete the RailWise AI web platform and extend it into a fully functional mobile app. My approach would include reviewing the current codebase, finishing the frontend and backend work, fixing bugs, optimizing APIs, and ensuring responsive design across devices. I will also ensure OTP flows, sorting, filtering, and session persistence work flawlessly, making the web platform production-ready. For the mobile app, I would use React Native to reuse the existing backend APIs, implementing journey search, results, reliability scores, journey details, OTP login, saved journeys, and user profiles. ✅To enhance the routing and reliability engine, I can implement practical intelligence layers like hard rejects, historical journey analytics, outcome tracking, failure analysis, and station/route intelligence. These systems will feed into a growing journey database, improving recommendations and reliability scores over time without unnecessary complexity. Q1: Can you provide access to the repository and any existing documentation for the routing engine? Q2: Are there preferred metrics or thresholds for “reliability scores” and journey success? Q3: What is the desired timeline for Phase 1 (web completion) and Phase 2 (mobile app)? Looking forward to discussing this project further and reviewing the repository.
₹9,000 INR in 7 days
0.0
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