Freelance Senior .NET Developer

1 week ago

Ho Chi Minh City, Ho Chi Minh, Vietnam SGH Asia Full time $40,000 - $60,000 per year
Top 3 reasons to join us
  • Highly attractive salary
  • 13th month salary, bonus, abroad and local trip
  • Opportunity for overseas training (Germany)
Job description
  • Job Type: 3-month freelance project (MVP phase) with the opportunity for full-time employment afterward
  • Location: Phu Nhuan, HCMC
  • Working hours: 9a.m – 6p.m Mon-Fri (Onsite).

About the project

  • Project: Next-generation AI-driven digital forensics platform
  • Goal: Deliver a production-ready MVP for an AI-powered platform that analyzes digital signals from websites, domains, images, and emails — combining structured data with forensic intelligence.
  • Technical Stack:
  • Backend: .NET 8/9, EF Core, SQL Server,
  • Frontend: Blazor (Server), MudBlazor, HTML, CSS, JavaScript
  • Integrations: OpenAI API, Apify, Google Vision, BuiltWith
  • Infrastructure: AWS (ECS/Fargate, RDS, S3, SQS, CloudWatch, Secrets Manager)
  • Current Status:
  • BETA completed (core architecture, data models, AI integrations in place)
  • Focus: refinement, scaling, and AWS deployment
  • Timeline: December 2025 – February 2026
  • Team Setup:
  • 2 Senior Developers (HCMC)
  • CEO/Product Owner (on-site first month)
  • Work Process:
  • Daily stand-ups via Slack/Teams
  • Weekly sprint reviews and progress demos
  • Code reviews via GitHub pull requests
  • Shared documentation on Notion/Confluence
  • Agile, fast-paced, results-oriented collaboration
  • Future Plan: Expansion to a 5–7 developer team in 2026

Project Objective (Dec 2025 – Feb 2026)

  • Code foundation (Review)
  • Code cleaning, refactoring, and validation of core modules
  • User and access control (Develop)
  • User management, identity, and authentication
  • Stripe payment integration
  • Integrated intelligence (Develop)
  • Unified aggregation layer combining web, domain, image & email results
  • Deployment readiness (Setup)
  • Scalability for 100 users / 50 AI jobs
Your skills and experience
  • Proactive communication and fluent English
  • 5+ years of experience in backend development using C# / .NET Core / EF Core
  • Strong skills in Blazor, SQL, HTML/CSS/JavaScript
  • Experience with AI API integrations and API-driven analysis
  • Understanding of SSL, HTTP headers, DNS, metadata, and data collection
  • Familiarity with AWS deployment and scaling
  • Clean, maintainable coding style with Git workflow best practices.
Why you'll love working here
  • Competitive salary with the opportunity for full-time employment following the MVP stage
  • Be part of an innovative AI-driven SaaS product trusted by global brands
  • Collaborate directly with an experienced European team
  • Modern tech stack and clear project roadmap.

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