.NET 8 Developer for Crypto TradeCheck MVP

@kamran2012

Hey, I will wire up PostgreSQL with EF Core migrations, implement JWT auth with per-user data isolation, and harden the risk engine to enforce all trading rule fields — then move through webhook security, real token scanner integration, and Telegram alerts across Phases 2 and 3. For the PostgreSQL + JWT approach, I will replace AppStore with EF Core DbContext using Npgsql, set up Identity with JWT bearer tokens, and scope every query through a user ID filter — so data isolation is enforced at the repository level rather than relying on controller-level checks alone. Questions: 1) Which token safety API are you leaning toward for the scanner — GoPlus, Token Sniffer, or something else? 2) Is the target deployment Azure App Service or a self-managed VPS? Looking forward to potentially working together. Thanks, Kamran

@rahuliitm69

Hi there, As you can see from my profile, I have spent the decade working on SaaS, fintech, dashboard-based, and real-time backend systems involving secure APIs, authentication layers, webhook integrations, and scalable architectures. TradeCheck already has a good MVP foundation, so I can help you properly move it from demo stage to production-ready by handling PostgreSQL + EF Core migration, JWT-based authentication with user isolation, TradingView webhook security, token scanner integration, Telegram alerts, testing, CI setup, and deployment documentation. I also understand this is a phased build, so I would approach it step-by-step without disrupting the existing Blazor + ASP.NET Core structure that is already working. I would request to connect once so we can review the current repository, phase priorities, and deployment approach properly. Thanks, Rahul A.

@OutsourceMan

⭐⭐⭐⭐⭐ Project Understanding: TradeCheck MVP needs production upgrade from in-memory to full-stack .NET 8 (Blazor WASM + ASP.NET Core minimal APIs) with PostgreSQL, secure auth, real token scanner, webhooks, and notifications. Proposed Approach: Phase 1 (Week 1-2): Migrate to PostgreSQL + EF Core with migrations/seed data; implement JWT auth + per-user isolation; enforce rules in risk engine; configure dev/prod URLs. Phase 2 (Week 2-3): Integrate real Solana/EVM token safety API; secure TradingView webhooks with per-user keys; add Telegram notifications for high-risk trades. Phase 3 (Week 3-4): Add unit/integration tests for risk logic; create deployment docs (recommend Docker + Azure App Service); set up GitHub Actions CI. CnELIndia Team Support Steps: Assign senior .NET 8 dev with Blazor/PostgreSQL experience + crypto domain knowledge. Weekly Loom updates + progress demos. Deliver clean PRs, OpenAPI/Postman collection, full handoff notes. Fixed price: $650 for Phases 1-3 (4 weeks). Similar Projects: Links available on request (fintech dashboards with Blazor + secure APIs). Next: Ready to start immediately (IST timezone, 40+ hrs/week). Let's schedule a call.

@reedsystems

Hi, I'm excited to bid on the TradeCheck MVP project. As a seasoned .NET developer with over a decade in the field, I understand the importance of delivering robust and secure applications. Here’s an overview of what I propose: Phase 1: - PostgreSQL + Entity Framework Core: Replace the current in-memory database for persistent user data. - User Authentication & Isolation: Implement JWT authentication with role-based access control to ensure per-user data isolation. - Trading Rules Enforcement: Strengthen the risk engine by enforcing all trading rule fields to enhance accuracy and reliability. Phase 2: - Real Token Safety API Integration: Replace the mock token scanner with a real-time, reliable service for more accurate risk assessments. - Secure TradingView Webhooks: Implement per-user keys for secure communication. Add validation checks to ensure data integrity. - Notifications: Set up Telegram notifications for high-risk trades and blocked trades. Phase 3: - Unit Testing & API Tests: Develop comprehensive unit tests for the risk logic and basic API tests to ensure robustness. - Deployment Documentation: Provide detailed documentation on deployment options, including Azure App Service, VPS, or Docker (suggestions based on project requirements). - CI Pipeline: Set up a CI/CD pipeline using GitHub Actions for automated testing and deployments. Phase 4: - Optional Features: Implement read-only exchange API sync to provide real-time position updates. Explore multi-tenant/subscription hooks for future scalability. I’ve worked with PostgreSQL + EF Core, REST API design, and webhooks in previous projects, ensuring robust data management and secure communication channels. My approach focuses on maintaining clean code practices and thorough documentation, which I believe will make the transition to production smooth. For this project, I propose: - Phase 1: 2 weeks - Phase 2: 2 weeks - Phase 3: 1 week Deliverables include clean PRs or commits with updated README files, migrations and seed data, a Postman collection, an OpenAPI documentation file, and a short video walkthrough of the finished features. I can provide handoff notes for local development and deployment. I have worked on similar projects in SaaS, fintech, and dashboard applications, with two relevant project links available here: https://www.freelancer.com/u/reedsystems My timezone is UTC-5, Eastern Time (US & Canada), and I am available for weekly updates. Looking forward to the opportunity to collaborate! Best, Reed

@waqaswebmaster

Hello, TradeCheck already has the right MVP foundation, so the priority now is replacing demo/in-memory behavior with production-safe infrastructure without disturbing the working risk engine and Blazor UI. I can take the ASP.NET Core 8 + Blazor WASM codebase through PostgreSQL/EF Core migration, JWT authentication, per-user data isolation, secure TradingView webhooks, real token-risk API integration, Telegram alerts, unit/API tests, CI, and deployment documentation. For PostgreSQL + JWT, I’d introduce EF Core entities/migrations, scope all records by authenticated user claims, protect APIs with role/claim checks, and keep dev/production configuration clean through environment-based settings. I can work in phased commits with README updates, Postman/OpenAPI documentation, and short walkthrough videos/screenshots for completed features. Could you share the current repository and confirm whether you prefer Azure App Service, Docker, or VPS deployment for Phase 3? Best regards, Waqas A.

@devbaloni1983

Hi, ***** .Net expert***** I have more than 15 years of experience in the development As I am an expert, I can build it according to your requirements. Because I have a lot of experience in these fields, I can build your project as soon as possible. I offer excellent software quality work and provide the best support for your project. If you give me this job, I will do my best to finish your job by your timeline. If you want to see my past works, I can show you my past works right now. Ready to discuss this with you about the task now. Thank you for the reading.

@toriquldev123

Hello dear, Greetings from MD. Toriqul Islam! We are a dedicated Web Design & Development team with over 10+ years of industry experience. I’m Engineer Toriqul Islam, an experienced Computer Science & Engineering graduate from RUET. We specialize in building modern, scalable, and user-friendly digital solutions tailored to business needs. What I Offer We help businesses grow online by delivering: • Clean, modern, and responsive website designs • High-performance and scalable web applications • User-focused UI/UX for better engagement and conversion My Technical Expertise We work across a wide range of technologies, including: • Frontend: HTML5, CSS3, Bootstrap, JavaScript, jQuery, Angular, React • Backend: Node.js, PHP, Laravel, .NET, CodeIgniter, Ruby on Rails, Python • CMS & Platforms: WordPress • Database: MySQL, MongoDB • Mobile Development: React Native, Flutter, and more Why choose me? ✔️ Clean, optimized, and well-documented code ✔️ Reusable and scalable components ✔️ On-time delivery with complete requirement fulfillment We are confident in our ability to turn your ideas into a powerful digital product. Let’s discuss your project and make it a success. Looking forward to working with you! Best Regards, Md. Toriqul Islam

@mughiraaa

hi, i have strong experience working with asp.net core 8, blazor wasm, ef core, and postgresql for saas and fintech style applications. i can take your existing mvp and move it to production ready stage by replacing in memory storage with postgresql, implementing secure jwt authentication with per user data isolation, and strengthening the risk engine rules. i will also integrate real token safety api, secure tradingview webhooks, and add notification system using telegram or email. i will follow a phased approach, starting with database and auth layer, then api security and integrations, and finally testing, ci pipeline, and deployment setup using docker or azure based on your preference. can we schedule a quick meeting to discuss the project in detail. it will help me understand your current codebase better and give you a clear plan with timeline and cost per phase. i will also share my portfolio during the chat. mughiraa

@maxscender

I can help you transition TradeCheck from an in-memory demo to a hardened production application. I will replace the current store with PostgreSQL using EF Core, implementing a BaseRepository that enforces per-user data isolation via JWT claims. To secure the TradingView webhooks, I’ll move away from open endpoints to a system using unique user GUIDs and HMAC validation to prevent spoofing. I will refactor the risk engine to inject user-defined rules directly into the calculation pipeline, ensuring decisions are strictly data-driven based on the stored database configurations. For deployment, I’ll containerize the services with Docker to ensure environmental parity between your Windows build scripts and the final Azure or VPS production environment.

@mykhaylob4

✋ Hi there. I can take your existing TradeCheck MVP from its current demo stage to a stable production ready .NET 8 application with secure authentication, PostgreSQL integration, webhook security, and a clean deployment workflow. ✔️ I have solid experience with ASP.NET Core 8, Blazor WebAssembly, PostgreSQL, Entity Framework Core, JWT authentication, REST APIs, webhook systems, GitHub Actions, and production deployment workflows. In a previous project, I worked on a financial dashboard platform with secure APIs, user isolation, notification systems, PostgreSQL migrations, and CI pipelines running through GitHub Actions and Docker deployment. ✔️ For your project, I would first replace the in memory AppStore with PostgreSQL and EF Core migrations while implementing proper JWT authentication and per user data separation. After stabilizing the backend structure, I would move into webhook validation, token risk API integration, Telegram notifications, automated testing, and deployment setup with clear environment configuration for staging and production. ✔️ I will keep the codebase clean and maintainable with documented commits, updated READMEs, migration scripts, API documentation, and deployment notes. I can also provide short walkthrough videos after major milestones so the handoff process stays simple and organized. Let’s chat to discuss the current codebase, timeline for each phase, and deployment preferences. Best regards, Mykhaylo

@Hrolgar

Phase 1 first, because it unblocks the other two: EF Core models matching the existing AppStore shape, migration to Postgres with seed data, then JWT bearer auth wired to a Users table with per-user query filters at the DbContext level so risk engine, rules, journal, and alerts all scope automatically. JwtBearer + ASP.NET Identity for hashing, refresh-token rotation in a separate table, global query filter on a TenantId column. Config split per environment via appsettings overrides, plus a small endpoint exposing the API base URL so the WASM build stays environment-agnostic. Phase 2: token safety API picked based on which chains you care about. GoPlus for EVM coverage, RugCheck or DexScreener with heuristics for Solana. Webhook security via per-user signing keys stored hashed in Postgres, HMAC verification middleware on the TradingView endpoint, short-TTL nonce cache for replay protection. Telegram via Bot API with deep-link enrolment so users link their own chat, you do not need to hold per-user bot tokens. Phase 3: xUnit for the risk engine and rules pipeline where correctness matters most, WebApplicationFactory tests for the API surface, GitHub Actions workflow that builds, tests, then publishes a Docker image. For deploy I would suggest Docker on a small VPS over Azure App Service at MVP stage for cost, Postgres either managed (Neon, Supabase) or in a sibling container. M1 Postgres + EF Core + JWT + per-user isolation (1.5w, 225 USD). M2 token API + webhook security + Telegram (1.5w, 225 USD). M3 tests + CI + deploy docs (1w, 250 USD). Total 700 USD, 28 days, Friday weekly progress notes. CET timezone, 25-30h/week. Quick check before I start: is JWT scaffolding already present in the codebase or am I bringing in JwtBearer fresh, and is the Postgres target a managed service (Neon, Supabase) or your own instance?

@techsty2014

I can help with this, We will wire PostgreSQL with EF Core migrations, add JWT auth with per-user data isolation, and harden the risk engine so every trading rule field is enforced before scoring. For the database swap, we will map your existing AppStore models to EF Core entities and use a repository layer. That way the Blazor WASM client stays untouched while the API switches from in-memory to Postgres cleanly. A couple of quick things to confirm: 1) Is the current AppStore a single static class, or are there multiple in-memory collections we need to migrate? 2) For Telegram notifications, do you already have a bot token set up, or should we create that during Phase 2? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Send me a message and we can go over the details. Best regards, Faizan

@mobiwebsolutions

✋ Hi There!!! ✋ The Goal of the project:- TRANSFORM THE TRADECHECK MVP INTO A PRODUCTION READY .NET 8 BLazor AND ASP.NET CORE CRYPTO RISK PLATFORM WITH FULL BACKEND AND SECURITY ENHANCEMENTS. I carefully reviewed your requirement to upgrade the existing MVP into a scalable SaaS with PostgreSQL migration, JWT authentication, secure webhooks, and production deployment using clean architecture. I am the best fit as I specialize in .NET Core systems, Blazor apps, and fintech grade backend development. • PostgreSQL integration with EF Core replacing in memory storage • JWT authentication with secure multi user data isolation • TradingView webhook security, Telegram alerts, and API integrations I provide UI design, database management, testing, CI/CD setup, and full source delivery with 9+ years full stack experience, including similar SaaS and fintech dashboard systems. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!

@SkillCrafts

I love the intersection of Blazor and fast-paced web3 data, and I am ready to step in and help you cross the finish line with your TradeCheck MVP. Having recently built a real-time crypto risk-assessment dashboard utilizing ASP.NET Core 8, SignalR, and external exchange APIs, I understand how critical low-latency state management, efficient thread handling, and clean UI updates are for active traders. Let’s turn your remaining product backlog into a highly performant, production-ready release over the next 4 to 6 weeks. To wrap up this MVP efficiently, I will audit your existing ASP.NET Core 8 backend architecture to optimize API endpoints and ensure robust, asynchronous data fetching from crypto market data feeds. On the frontend, I’ll leverage Blazor's native component lifecycle, interactive render modes (WebAssembly or Server), and state containers to deliver snappy, reactive risk indicators without unnecessary DOM re-renders. Additionally, I will secure your API integrations using clean dependency injection, configure resilient Polly-based retry policies for external endpoints, and set up structured logging to make post-launch debugging seamless. To ensure we hit the ground running, are we integrating with specific exchange APIs like Binance or Coinbase, and do you have a completed Figma design or UI mockup ready for the remaining Blazor views? I would welcome a quick chat to review your current codebase, assess the outstanding tasks, and map out a precise, milestone-based delivery plan. Let's connect here in the chat to align on your immediate technical priorities and see how we can get this MVP launched smoothly.

@adeelaslam04

Hi, What areas of the MVP still need the most work right now — backend stability, Blazor UI improvements, TradingView webhook handling, or production deployment/security? I can help take your .NET 8 MVP from demo stage to a more stable, production-ready application while keeping the existing architecture clean and scalable. Since the core app is already built, the focus can shift toward refining the Blazor frontend, improving ASP.NET Core backend reliability, optimizing performance, tightening validation/security, and stabilising integrations like TradingView webhooks and the mock token scanner. I also understand the importance of keeping the product focused as a pre-trade risk management tool rather than drifting into trading-bot functionality, so the workflows and UX can remain aligned with that purpose. I’d be happy to review the current codebase, architecture, and pending milestones to better estimate the remaining work and timeline. Best regards,

@mahads31

With over 3 years of dedicated experience in C# and ASP.NET Core, along with a deep understanding of Blazor WebAssembly, I bring to the table the perfect balance of both skill and know-how needed to elevate your Crypto TradeCheck MVP from its current state to a fully-functioning production-ready product. My familiarity with PostgreSQL and Entity Framework Core guarantees the seamless integration of a more robust database system while keeping the API/client configuration completely compatible. My knack for REST API design and webhook security will help me add more functionalities like real token safety API integration, secure TradingView webhooks with per-user keys validation, and even Telegram notifications for high-risk trades, giving your users a highly efficient pre-trade risk checker. Furthermore, my experience with databases includes using JWT for authentication similar to what you’re looking for, which will only streamline the project even better.

@mdaxini

Building on over a decade of experience and leading MDTechnoSoft LLP, I am Pratik. As a seasoned software developer, my expertise aligns closely with the skills you seek for your Crypto TradeCheck MVP project. Having led similar development ventures, I have successfully created scalable and secure solutions by deploying technologies including ASP.NET Core and the Blazor stack, as well as databases like PostgreSQL and Entity Framework Core. Notably, I appreciate your focus on clean, well-documented code. Such an approach underscores the meticulousness inherent in my work. Not only do I complete tasks to schedule but my emphasis on detailed testing at each stage ensures the final product is robust and foolproof. Testament to this is my relative fluency with working in real-time scenarios which I believe would be especially apt for integrating the real token safety API and securing the TradingView webhooks you require. In conclusion, with effective communication, transparent updates, and my proficiency in the various aspects relevant to your project requirements- from designing APIs to handling Windows publish scripts -I am confident in my capacity to contribute significantly to upgrading your TradeCheck MVP. Alongside offering a competitive hourly estimate for Phases 1-3, I provide thorough deliverables including migrations and seed data as well as detailed handoff notes for running locally and deploying

@xuezhe315

Hi, As an experienced full-stack developer, my passion lies in creating highly scalable and proficient web applications. I have spent over three years perfecting my C# and ASP.NET Core skills, making me the ideal candidate for your TradeCheck project. My proficiency with Blazor and PostgreSQL in conjunction with a deep understanding of Entity Framework Core will help transform your MVP into a production-ready application. Regarding your tech stack, I assure you that my expertise spans the full spectrum of your specifications, from API design to deploying on Azure App Service, VPS or Docker. My understanding of REST APIs is complemented by an ability to ensure their security against risks and intrusions. My time-management skills are strong as well. I can provide you with a feasible phase-wise breakdown with estimated timelines based on my previous experience working on similar projects. Above all,I prioritize clear communication and transparency. You will receive detailed weekly progress reports discussing my work alongside timely deliveries of Clean PRs and commits with thorough documentations to help you understand the changes made. Together, let's build a robust and efficient Crypto TradeCheck that revolutionizes the way traders mitigate risks! Regards.

@engruhulajom

Dear Client, I’m an experienced full-stack developer with over 10 years of experience in web and mobile application development, specializing in building scalable, responsive, and high-performance solutions for diverse business needs. I understand you are looking for a reliable developer to build or improve your project, including web or mobile applications similar to CRM, dashboards, or APIs, and I have worked on similar solutions successfully. My skills in React, Vue, Laravel, PHP, Python, REST APIs, and database design ensure efficient and high-quality delivery. Feel free to share more details or ask questions. I’m ready to refine my approach to match your exact requirements. Looking forward to working with you. Best regards, Md Ruhul Ajom