We are seeking a skilled web developer to create a simple, non-KYC crypto swap website. The platform should allow users to easily swap various cryptocurrencies without the need for identity verification. An intuitive admin panel is also required for managing transactions and user activities. The ideal candidate will have experience in blockchain technology, web development, and a strong understanding of cryptocurrency functionalities.

If someone even has a white label that I can just change the branding that would be perfect too.

Examples:
ChangeNow.io
Changehero.io
SimpleSwap
StealthEx

About the Role
We are seeking a highly skilled Senior .NET Backend Developer to join our growing engineering team. In this role, you will design, develop, and maintain high-performance backend systems and APIs for enterprise-grade applications. You’ll work closely with front-end developers, DevOps engineers, and product managers to deliver scalable and secure solutions.

Key Responsibilities
*Design, develop, and maintain robust backend services using C# and .NET (.NET Core/.NET 6+)
*Build RESTful APIs and integrate third-party services and data sources
*Collaborate with cross-functional teams to translate business requirements into technical solutions
*Implement security best practices (OAuth2, JWT, etc.) and ensure compliance with data standards (e.g., HIPAA, PCI-DSS if applicable)
*Optimize application performance, scalability, and reliability
*Write unit and integration tests to ensure code quality
*Participate in code reviews and mentor junior developers
*Work with SQL Server or other relational databases (PostgreSQL, MySQL)
*Contribute to DevOps practices including CI/CD pipelines and infrastructure as code

Required Qualifications
*5+ years of experience in backend development with C# and .NET
*Strong knowledge of .NET Core / .NET 6+
*Experience with REST API design and development
*Solid understanding of OOP, SOLID principles, and design patterns
*Experience with relational databases (SQL Server, PostgreSQL, etc.)
*Familiarity with cloud platforms (Azure preferred, AWS is a plus)
*Experience with Git and modern CI/CD workflows
*Excellent problem-solving skills and attention to detail
*Strong verbal and written communication skills

Preferred Qualifications
*Experience with microservices architecture
*Familiarity with containerization (Docker, Kubernetes)
*Background in secure and compliant systems (HIPAA, GDPR, PCI-DSS, etc.)
*Exposure to message queues (RabbitMQ, Azure Service Bus, etc.)
*Front-end experience with React, Angular, or Blazor is a plus

Description:
I’m looking for a developer who can help deploy a web app using Railway for the backend and database, and Vercel for the frontend.

The backend is built in .NET and currently set up to use SQL Server, but I want to migrate it to PostgreSQL on Railway. The frontend is built in Next.js and is already hosted on Vercel.

What needs to be done:

Update the backend to work with PostgreSQL instead of SQL Server

Ensure the backend is fully deployed and connected to the PostgreSQL database on Railway

Make sure the frontend and backend are working together as expected

Requirements:

Experience with Railway and Vercel

Experience with .NET and PostgreSQL

Strong understanding of full-stack deployment

Let me know your experience and how soon you could get started.

We are seeking an experienced full-stack development agency to build a robust AI-powered Financial Reporting platform tailored for businesses of all sizes. This platform will serve as a centralized hub for uploading, processing, auditing, and visualizing financial documents using advanced OCR, intelligent document parsing, and data analytics capabilities.
Our objective is to simplify financial workflows by automating document intake, ensuring regulatory audit-readiness, and generating dynamic financial reports (e.g., P&L, cash flow, balance sheets) from structured and unstructured data.

Core Features We’re Looking For:

Document Upload & OCR:

Ability to ingest scanned documents (PDFs, images, receipts, invoices, etc.) and extract data using OCR (preferably Tesseract, Google Vision, or similar).

Intelligent Document Processing:

Auto-tagging, categorization (Invoice, P&L, Statement), and mapping data to pre-set financial structures (chart of accounts, cost centers, etc.)

Financial Report Generation:

Generate accurate and customizable financial reports with filters by time period, business unit, or document category.

Audit & Compliance Trail:

Ability to audit financial records, track changes, attach annotations, and export compliant logs for audit purposes.

Role-based Access:

Admin, Accountant, Reviewer, Auditor roles with permission settings and access logging.

Dashboard & Visualizations:

Real-time dashboards showing financial health, pending tasks, red flags, and anomalies using charts and KPIs.

Integrations (Bonus):

Ability to connect with QuickBooks, Xero, or ERP systems via APIs.

Admin Panel:

For platform usage management, user control, and system logs.

Ideal Agency Profile:
We are looking for an agency with prior experience in developing Fintech, Document Intelligence, or Audit Platforms—especially those who have worked with OCR, AI-based data extraction, and enterprise-grade backend systems.
Your agency should be confident in:

Building secure, scalable, and modular platforms

Creating elegant and intuitive user interfaces (preferably with dashboards)

Handling sensitive financial data with encryption, access control, and secure storage

Delivering testable, well-documented codebases with CI/CD pipelines

Preferred Skills & Technologies:

Backend: Node.js / Django / Laravel

Frontend: React.js / Vue.js

OCR/AI: Tesseract / Google Vision / AWS Textract

Database: PostgreSQL / MongoDB

Cloud: AWS / Azure / GCP

CI/CD: GitHub Actions / Docker / Jenkins

Security: OAuth2, Role-Based Access Control, Data Encryption, Audit Logging

Sample Portfolio or Similar Platforms (Ideal but not mandatory):

OCR-based invoice/document processing platforms

Financial automation/reporting dashboards

Audit compliance or governance risk control systems

ERP, Accounting, or Bookkeeping automation tools

Submission Instructions:
If your agency has experience with AI document processing, OCR data extraction, or financial systems, we’d love to hear from you!
Please include:

A brief agency introduction and team strength

Relevant portfolio links or case studies (with features related to OCR/Finance/Compliance)

Your proposed tech stack

Timeline and rough milestone breakdown

Any questions or assumptions you’d like us to clarify

We're ready to begin immediately and are open to a discovery phase if needed. Looking forward to collaborating with a proactive and detail-driven team!

Let’s build something powerful together.

The ideal candidate will have strong experience with Office.js, Microsoft 365 integrations, and cloud backend development using Azure Functions. Experience with Microsoft Graph and AI/NLP services is highly desirable. Background working with education or public sector clients is a plus.

🔧 Key Responsibilities:
Develop a Microsoft Outlook add-in compatible with both desktop (Windows) and web clients

Build a clean, intuitive front-end UI using React, Vue, or a similar framework with Office.js

Design and build scalable, serverless back-end services using Azure Functions

Integrate with Microsoft Graph API, Azure Active Directory (AAD) authentication, and cloud storage like SharePoint or OneDrive

Develop customizable dashboards for administrators to monitor activity, view tagging history, and manage configurations

Incorporate AI-powered natural language processing (NLP) services for content scanning and classification

Ensure secure authentication, user preferences management, and compliance with data privacy standards

✅ Must-Have Skills:
Proven experience with Office.js or VSTO add-in development

Strong front-end skills with JavaScript, TypeScript, React, Vue, or similar

Back-end development experience with Azure Functions and serverless architecture

Microsoft Graph API integration expertise

Experience with secure authentication protocols (OAuth 2.0, MSAL)

Experience developing Outlook add-ins for both desktop and web platforms

🌟 Nice-to-Have:
Familiarity with K–12 compliance requirements

Experience with Power Automate, SharePoint Online, or Microsoft Teams integrations

Background in building SaaS tools or MVP products

Strong communication skills to work effectively with non-technical stakeholders

We're looking for a technical partner (agency or highly capable team) to help bring an AI + BI insights platform to life. This will be a customer-facing dashboard that aggregates and interprets data from 20+ public sources (e.g., retailer sites, industry reports, social media, scientific databases), which is done through scraping or AI ingesting particular sites and delivers actionable insights for consumer brands.

The platform will:

*Scrape and update data regularly (e.g., Sephora, Ulta, brand websites, review sites, social media)
*Interpret consumer sentiment, product trends, gaps in brand portfolios, market share insights
*Display insights in modular dashboards
*Enable comparisons across brands, categories, and time (e.g., week-over-week changes)
*Use generative AI to summarize reviews, trends, and recommendations

You'll be working with a product team that will provide detailed mockups and insight logic. We’re looking for a group that brings strong data warehousing, web scraping, AI integration, and front-end development capabilities.

📽️ A full video walkthrough is included in the post—please review it before responding. - https://www.loom.com/share/c8e4f1d0e3fe40cba51e5688f0fc52ea?sid=67cdd564-10f6-4bbf-9954-f90ed6c839dc

Looking for:
✅ Agency/Team with full-stack capabilities - MUST HAVE comparable experience.
✅ Experience building data-driven platforms (across multiple data sources)
✅ Ability to move fast and iterate
✅ Will look at independent individuals if you have teams or other partners you can bring with you.

MVP:
* Filter at the top to filter brands, products, and/or category and then hit "analyze" to create AI insights for selected criteria
* data warehouse well architected and organized
* ~20+ sites scrapped, and more added to the pool over time
* 5-10 strong insights surfaced per page for 2-3 pages

Note this is MVP which I want to launch as fast as possible and then will be continuing to grow the data library and pushing out more insights as we go.

**DO NOT EMAIL ME OR CALL ME OUTSIDE OF UPWORK - I WILL NOT WORK WITH THOSE THAT DO**

Please include in your response:

* Relevant examples of similar projects
* What tool you plan to use that could allow us to leverage open source code and move quick (e.g. do you have something for data visualization you prefer using for good looking visuals?)
* How you'd approach an MVP

Meta Ads API Developer for Internal Creative Automation Tool

About Us
BINA is a high-performance marketing group scaling lead generation campaigns across Meta. We’re building an internal tool to streamline static ad production, deployment, and creative testing. We’re looking for a technical partner who has already built robust systems on top of Meta’s Marketing API and understands how to move fast, clean, and with a strong sense of ownership.

What You’ll Be Responsible For
• Using Meta’s Marketing API to:
• Extract Campaigns, Ad Sets, and Ads
• Clone and create new Ad Creatives, Ad Images, and Ads
• Managing asset libraries, permissions, and creative uploads using AdImage, AdCreative, and Ad objects
• Handling token authentication (system user, access tokens, long-lived tokens) and app review requirements
• Ensuring proper creative upload and review flow for compliance
• Supporting creative rotation at scale using batch requests
• Building lightweight endpoints or worker scripts to connect with our automation system
• Setting up robust error handling, retries, and clear logging for success/failures in ad creation
• Naming conventions and metadata tagging that support downstream performance analysis

Must-Have Experience
• Production-level use of Meta’s Marketing API: you’ve created and launched ads programmatically, not just pulled reports
• Managing creative approvals and troubleshooting rejections
• Handling token refresh, app review, and system user permissions under a Business Manager
• Strong fundamentals in async processing, queues, and rate limit management
• Able to pair-program / co-build in real time (“vibe coding”)
• Comfortable working in Node.js or Python (FastAPI preferred)

Nice to Have
• Insights API experience for reporting rollups
• Experience with Conversions API setup
• Slack webhook or app integrations
• Familiarity with image storage (e.g., S3 or Cloudinary)
• Experience building tools for media buyers or marketers

Who You Are
• You’ve already built Meta Ads automation tools or dashboards from scratch
• You can explain exactly which Marketing API objects you’ve worked with
• You know how to debug creative rejection errors, rate limits, and token failures
• You speak our language: you know what CTR, CPL, and creative fatigue mean
• You like building fast with minimal meetings, strong documentation, and async progress

To Apply
Start your message with “StaticScale 2025” or it will be skipped.

Include in your proposal:
1. Specific examples (repo/code sample) of Meta Marketing API work
2. Description of a tool or workflow you built that used the API to create ads
3. List of Marketing API objects you’ve used
4. How you handle rate limits, retries, and idempotency
5. How you manage access tokens and Business Manager connections
6. Your hourly rate and weekly availability
7. Optional: Loom video walking through one of your past builds

We’re hiring for someone who’s done this before. Please do not apply if you’re learning the Meta API for the first time. This is not a generic dev job — we need real experience with Meta’s ad infrastructure.

Join our groundbreaking AI web devleopment company, where you'll collaborate directly with our impressive founding team of Silicon Valley engineers from Meta and Amazon. This is a unique opportunity to work closely with industry experts and guide other junior developers while tackle exciting challenges in a collaborative and fast-paced environment. If you're passionate about frontend web development and ready to make a significant impact, we would love to hear from you.

Responsibilities:

- Design, optimize, and implement AI / LLM algorithms
- Develop low to high complexity user-facing features using TailwindCSS and ReactJS
- Build reusable code and libraries for future use
- Integrate with complex 3rd party APIs
- Build scalable backend systems using Google Cloud Firebase

Qualifications:

- Frontend: ReactJS, TailwindCSS
- Backend: Node.js, Google Cloud Firebase
- Version Control: Git
- Excellent problem-solving skills
- Ability to work well in a team environment

If you are a creative thinker with a passion for AI and full stack development and possess the skills mentioned above, we encourage you to apply. Join us in revolutionizing an entire industry together.

MetaBull Entertainment is an AI-powered media tech startup. We’re hiring a Senior API Developer to lead pipeline development for our platform (v2 now in production). This contract role has strong potential to evolve into full-time.

First Project
Build the frontend and backend APIs for an Asset Manager:
• Upload digital assets to secure Amazon S3
• View, select, and edit assets via a responsive frontend

Tech Stack
• Python, FastAPI, React or Next.js. Docker, WebSockets, AWS (S3, EC2)
• AI tools: Cursor and GitHub Copilot (must use and embrace)

Requirements
• 5+ years dev experience
• Strong Python + API skills
• Familiar with AI-assisted workflows
• Slack, Jira, Confluence
• Bonus: media pipelines or asset management experience

We strongly embrace the use of AI tools for development. The more you can leverage AI, the more likely we are to direct additional work your way. And, we have a lot of work!

We are seeking an expert developer with extensive knowledge of Node.js, Express, React, and TailwindCSS to troubleshoot and resolve bugs in our Replit application. The ideal candidate will have a strong problem-solving skill set and the ability to optimize the app for performance. Your role will involve debugging existing code, implementing fixes, and ensuring the application runs smoothly. If you have a track record of delivering high-quality work and can handle complex technical challenges, we would love to hear from you.