SentinelDeck
Passive attack-surface scanner. A domain goes in; a risk grade, copy-paste fixes, and a client-ready report come out.
Sangeeth Thilakarathna · AI Automation & Full-Stack Developer
I build AI systems that ship.
RAG pipelines, SaaS platforms, and APIs for founders, agencies, and remote teams.
Open for remote contract work
Six years shipping for the web
~$
Founders and agencies hire me to ship the whole thing: the RAG pipeline with citations, the SaaS dashboard, the API, the deploy that does not fall over.
Understand the goal.
Plan the system.
Build both ends.
Ship.
0Years shipping
0Public repos
0Open-source products
0Client rating
Selected work
Open-source products, built end to end.
LinkForge
Self-hosted, AI-native URL shortener: branded links, custom domains, a QR studio, deep analytics, link-safety scanning.
RAGProof
Test harness for RAG pipelines. Scores groundedness, citations, and injection resistance, then fails your CI when quality drops.
LegateAgent
Self-hosted AI agents with human-in-the-loop approvals, a policy engine, MCP support, and a hash-chained audit log.
TwinGrid
Grid trading bot for Binance USDT-M Futures with a real-time PnL dashboard, multi-account workspaces, and backtesting.
There is more where that came from.
Browse all 95 repositoriesCapabilities
What I take off your plate.
AI & RAG systems
Knowledge bases that answer from your own documents, with citations your team can verify.
- RAG pipelines with Qdrant and pgvector
- LLM integrations, agents, prompt engineering
- Evaluation harnesses and CI quality gates
Full-stack development
SaaS platforms, dashboards, and REST APIs built to survive real users and real load.
- Laravel and FastAPI backends
- React and Next.js frontends
- Auth, RBAC, payments, admin panels
Automation & integrations
The repetitive work your team does by hand, turned into pipelines that run themselves.
- Webhooks and third-party API integrations
- Background jobs with Celery and Redis
- Internal tools and data pipelines
Security tooling
Attack-surface intelligence with fixes spelled out, in reports non-engineers can read.
- Passive DNS, TLS, email, and CT checks
- Risk grading with copy-paste fixes
- Client-ready technical reports
Tools I ship with.
About
Self-taught. Remote. Allergic to half-shipped software.
I am a developer from Kandy, Sri Lanka, working with founders, agencies, and SaaS teams on remote contracts, from short builds to long-term partnerships. Everything I open-source is built to the same standard I ship for clients.
What clients say
“He communicated clearly, understood the requirements, delivered professionally, and was responsive to feedback. The final website was clean, functional, and matched what we needed.”
“Sangeeth built our internal RAG knowledge base end to end. Answers come with citations our compliance team can actually check.”
“He rebuilt a legacy Laravel app two agencies had given up on. Zero downtime during the migration, and the admin panel finally makes sense.”
“Our monthly reporting used to take two days. His automation pipeline does it in twenty minutes, with alerts when something looks off.”
“Clear estimates, steady updates, and API documentation so good our mobile team integrated without a single call.”
“The security report was readable by non-engineers and every finding came with a fix. We closed most issues within a week.”
LET’S BUILD.
Tell me what you are trying to ship.
hello@sangeeth.biz
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