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Report abuseAI Automation & Full-Stack Developer
I build RAG systems, SaaS platforms, APIs, admin dashboards, and business automation for founders, agencies, and remote technical teams.
🟢 Available for remote contract, freelance, and project-based work
I am a developer from Sri Lanka focused on building practical software that solves real business problems.
My work covers RAG systems, AI automation, full-stack development, SaaS products, APIs, and security utilities. I ship production-ready systems on Laravel and FastAPI backends with React and Next.js frontends, backed by PostgreSQL, MySQL, and vector databases.
I work with founders, agencies, and SaaS teams on remote contract and project-based engagements, from short builds to long-term development partnerships.
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RAG knowledge bases, LLM integrations, document AI, AI agents, prompt engineering, and business-focused AI features with citations and grounding. |
SaaS platforms, admin dashboards, REST APIs, Laravel and FastAPI backends, authentication, RBAC, and database design on PostgreSQL and MySQL. |
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Workflow automation, webhooks, API integrations, background jobs with Celery and Redis, data pipelines, and internal business tools. |
Passive scanning utilities, domain and attack-surface intelligence, technical reporting, and developer-focused tooling. |
Multi-tenant AI knowledge base (RAG). Upload documents, ask questions, and get grounded answers with citations.
Stack: FastAPI, Next.js, Qdrant, Celery, PostgreSQL Repository: View DOC-007-AI
Self-hosted AI agents and workflow automation with human-in-the-loop approvals, a policy engine, connectors, MCP support, and a hash-chained audit log.
Stack: Python, TypeScript, Next.js, MCP Repository: View LegateAgent
Self-hosted, AI-native URL shortener and link-management platform with branded links, custom domains, a QR studio, deep analytics, and link-safety scanning.
Stack: Laravel 12, PHP, MySQL Repository: View LinkForge
Passive attack-surface scanner that turns a domain into a risk grade with copy-paste fixes and a client-ready report. Safe DNS, HTTP, TLS, email, and certificate-transparency checks.
Stack: Python, DNS, TLS, OSINT, CLI Repository: View SentinelDeck
Self-hosted grid trading bot for Binance USDT-M Futures. Full-stack platform with an automated grid strategy, real-time PnL dashboard, multi-account workspaces, and backtesting.
Stack: FastAPI, Next.js, TypeScript, Binance API Repository: View TwinGrid Binance
Also working with: Qdrant, MariaDB, Celery, REST APIs, webhooks, RBAC, and RAG pipelines
I take on remote contract, freelance, and project-based work for founders, agencies, and SaaS teams. Common engagements:
- RAG systems and document AI (knowledge bases, grounded Q&A, citations)
- SaaS platforms, admin dashboards, and internal tools
- Laravel and FastAPI backends, REST APIs, webhooks, and integrations
- AI automation, agents, and workflow tooling
- Security scanners and technical reporting utilities
- Trading automation and exchange API integrations
Primary languages
Backends & data
- Website: weblinetech.us
- LinkedIn: Connect on LinkedIn
- GitHub: github.com/sanmaxdev
- Sponsors: github.com/sponsors/sanmaxdev
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