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Available for select workPortfolio / 2026 — v3

/ 00 — Sanithu Hulathduwage

Softwareengineer &founder.

I'm a Computer Science student at Midwestern State University and multi-venture founder. Sole engineer behind a HIPAA-compliant healthcare CRM. Founder of SetFlow. Inventor of the Universal Privacy Engine.

01Now

Velant.ai

Sole engineer · HIPAA CRM in production

02Shipping

SetFlow

AI-native LMS · getsetflow.app · beta

03Inventing

Privacy Engine

Zero-knowledge data architecture

/ Based in

Wichita Falls, TX

Originally from Colombo, Sri Lanka 🇱🇰

01 / About

On principle.

I went from class assignments to shipping enterprise-grade production systems in under a year. As sole engineer at Velant.ai, I designed and built a HIPAA-compliant multi-tenant healthcare CRM — a full WebRTC VoIP softphone, an AI call intelligence pipeline, a real-time WebSocket architecture, and a cross-platform Flutter mobile app — across a 4-app monorepo.

In parallel I founded SetFlow — an AI-native LMS for K-12, higher ed, and individual learners, with a Bring-Your-Own-Database tier for institutions. I also co-founded GoodFellow Support Services Ltd, a UK elderly care company, where I lead operations and technology remotely from the US.

I'm also inventing the Universal Privacy Engine — a privacy-first computing architecture where identity is destroyed before processing, not merely protected after collection. I treat compliance, cryptography, and zero-trust as architectural primitives, not policy afterthoughts.

Open to internships, full-time roles, founder collaborations, and research partners.

/ At a glance

Velant monorepo (sole engineer)
4 apps
Feature modules shipped
31
Third-party integrations
15+
Compliance mindset
HIPAA

/ Currently

  • Co-Founder, COO & CTO — GoodFellow Support Services LtdDec 2025 – Present · UK elderly care + cleaning company, run remotely from the US.
  • Founder & CEO — SetFlowAI-native LMS at getsetflow.app. K-12, higher ed, and individual learners.
  • Sole Software Engineer — Velant.ai2024 – Present · HIPAA-compliant healthcare CRM with VoIP + AI, built end-to-end.
  • CS & Math Tutor — Midwestern State University2024 – Present · One-on-one and group tutoring across CS and math.
02 / Ventures

Three companies, one operator.

What I'm building today — across SaaS, healthcare, and care services.

/ 01

SetFlow

Founder & CEO

AI-native LMS for K-12, higher ed, and individual learners.

A learning operating system built on Next.js 14, Prisma, Postgres, and Anthropic Claude. Two products in one codebase — SetFlow (the LMS) and SetFlow Academy (the marketplace) — with a Bring-Your-Own-Database tier so institutions keep student data on their own Postgres.

Next.js 14PrismaPostgreSQLAnthropic ClaudeTailwindshadcn/ui
/ 02

Velant.ai

Sole Software Engineer · Founder

HIPAA-compliant healthcare CRM + telephony platform.

4-app pnpm monorepo: React CRM, Flutter mobile, patient portal, NestJS API. Includes a full WebRTC VoIP softphone, an AI call intelligence pipeline (Whisper → GPT-4o → follow-up content), Azure OpenAI SMS outreach with auto-takeover, multi-tenant data isolation, and 15+ third-party integrations.

NestJSReactFlutterSupabasePostgreSQLRedisAuth0BullMQSIP.jsWebRTC
/ 03

GoodFellow Support Services Ltd

Co-Founder, COO & CTO

UK elderly care + specialist cleaning, run remotely from the US.

Non-clinical elderly care and specialist cleaning across the UK. I lead operations and technology remotely — service delivery, workforce coordination, hiring, onboarding, scheduling, the website, hosting, internal tools, and workflow automation.

OperationsWorkforce systemsWeb infraAutomationBrand
Coming soon
03 / Stack

What I work with.

The languages, frameworks, and primitives I reach for. Updated regularly.

01

Languages

TypeScriptJavaScriptPythonDartJavaC++
02

Backend

NestJSNode.jsPrismaBullMQSocket.IOPassport.jsZodclass-validatorFastAPIFlask
03

Frontend

React 18Next.js 14ViteZustandTanStack QueryReact Hook FormChakra UITailwind CSSFramer Motionshadcn/ui
04

Mobile

FlutterRiverpodDioGoRouterflutter_secure_storageSIP_UAWebRTC
05

VoIP & Real-Time

SIP.jsWebRTCSocket.IOSupabase RealtimeBroadcastChannel APIAPNs VoIP PushFCM
06

AI / ML

OpenAI GPT-4oWhisperAzure OpenAI AssistantsAnthropic ClaudeRAG pipelinesOllamaPineconeTensorFlowpgvector
07

Databases & Caching

PostgreSQLSupabaseRedis (ioredis)MySQLMongoDBPinecone (Vector DB)
08

Infra & DevOps

AWS S3AWS Secrets ManagerVercelDockerTerraformpnpm monorepoCI/CDCloudflare
09

Integrations

Convirza (VoIP/SMS)Auth0Meta AdsGoogle AdsWhatConvertsSquareClaimMDSentryDatadogNew Relic
10

Security & Compliance

HIPAA mindsetAES-256-GCMJWT RS256MFA / TOTPRow-Level SecurityRBACAudit LoggingRate LimitingTLS / HSTS / CSP
04 / Experience

From IT desk to enterprise systems.

A non-linear path that runs from physical IT and brand design through to founding and engineering production platforms.

Dec 2025 – Present · Remote (UK)

Co-Founder, COO & CTO

GoodFellow Support Services Ltd

Co-founded a non-clinical elderly care and specialist cleaning company across the UK. Lead operations + technology remotely from the US — workforce coordination, scheduling, website, and full technical infrastructure.

2024 – Present · Remote

Software Engineer · Founder

Velant.ai

Sole engineer who designed and built the entire Velant platform — a HIPAA-compliant enterprise healthcare CRM with VoIP telephony, AI call intelligence, a real-time WebSocket architecture, a cross-platform Flutter app, and a secure patient portal. 31 feature modules, 15+ third-party integrations.

2024 – Present

Founder & CEO

SetFlow

Founded SetFlow — an AI-native LMS at getsetflow.app for K-12, higher ed, and individual learners. Built on Next.js 14 + Prisma + Postgres + Anthropic Claude, including a Bring-Your-Own-Database tier so institutions can host student data on their own Postgres.

2024 – Present · Wichita Falls, TX

CS & Math Tutor

Midwestern State University

One-on-one and group tutoring across Computer Science and Mathematics — data structures, algorithms, calculus, debugging, and problem sets.

2024 · Wichita Falls, TX

Graphic Designer

McCoy's Roofing & Renovations

Redesigned business cards and brand logo (+20% client inquiries); built and optimized the LinkedIn presence to grow visibility.

2024 · Wichita Falls, TX

Graphic Designer

Empire Tax Services

Designed branded marketing materials that contributed to a 15% increase in event attendance.

2022 – 2023 · Wichita Falls, TX

IT Technician

Midwestern State University

Built and configured 60+ computers (−25% downtime), resolved 95% of IT support tickets on first contact, and maintained on-campus servers, networks, and AV infrastructure.

2021 – 2022 · Colombo, Sri Lanka

IT & Operations

K Life Private Limited

Improved equipment uptime by 10% and managed social media — 3% audience growth and 18% profit increase across owned channels.

05 / Selected work

Things I've shipped.

From class assignments to enterprise-grade production systems. Tap any row to expand.

Two products in one codebase. SetFlow (the LMS) at getsetflow.app and SetFlow Academy (the marketplace) at academy.getsetflow.app. Same Vercel deployment, separate auth.

  • 5-role shell architecture (Student / Educator / School Admin / Founder / Member) with superadmin impersonation
  • Bring-Your-Own-Database — AES-256-GCM-encrypted Postgres URLs with self-healing migrations
  • Tori AI with Anthropic Claude Sonnet 4.6 + Haiku 4.5 routing, cost-gated by plan tier
  • Server actions follow an ActionResult convention with Zod parsing + tenant-routed Prisma
  • /dashboard/admin founder cockpit — analytics, economics, live globe, CRM, promo codes, tech docs

4-app pnpm monorepo serving as a unified platform for healthcare lead management, VoIP telephony, AI automation, appointments, and patient intake.

  • Full WebRTC VoIP softphone — SDP munging for cross-platform compat, DTMF, synthetic ringback, hold/resume reinvite queuing, SIP REFER transfer, BroadcastChannel cross-tab dedupe
  • AI call intelligence: Whisper-1 → GPT-4o-mini for sentiment, intent scoring, objection detection, opportunity extraction — wrapped in Opossum circuit breakers
  • Azure OpenAI SMS outreach with conversation memory + progressive 7-day cadence + auto-takeover after 300s of agent inactivity
  • Multi-tenant isolation: UUID-scoped Prisma queries, Auth0 JWT RS256 with custom claims, Supabase RLS, 7-role capability-based RBAC
  • iOS CallKit native UI via APNs VoIP push + Android FCM HIGH priority for real-time call alerts
  • Patient portal with invite-based reg, MFA/TOTP, digital signature capture, jsPDF form generation

Anonymize → Tokenize → Encrypt → Process → Destroy Tokens → Keep Anonymous Output Only. A new privacy infrastructure layer for healthcare, banking, government, and AI.

  • Irreversible anonymization with no recovery key
  • Vault-isolated double-path separation — identity universe vs data universe
  • Session-ephemeral re-linking — identity links self-destruct after sessions
  • Privacy-safe AI processing — models never receive direct identity

/ 06 — Research

The Universal
Privacy Engine.

A privacy-first computing architecture where identity is destroyed before processing.

An independent invention: a zero-knowledge data platform where identity is destroyed before processing, vault-isolated, and session-ephemeral.

01 Anonymize02 Tokenize03 Encrypt04 Process05 Destroy Tokens06 Anonymous Output
07 / Foundations

Education, certifications, and leadership.

/ Degree

Bachelor of Science in Computer Science

Midwestern State University · Wichita Falls, TX

Expected December 2026

/ Coursework

Data StructuresObject-Oriented ProgrammingHigh-Performance ComputingSoftware EngineeringArtificial IntelligenceLogic DesignNetworks

/ Certifications

  • The Complete 2024 Web Development Bootcamp — Dr. Angela Yu (in progress)
  • Software Development from A to Z — Karoly Nyisztor
  • Python (Basics) — HackerRank

/ Leadership & Activities

  • Founder & CEO — SetFlow (getsetflow.app)
  • Co-Founder, COO & CTO — GoodFellow Support Services Ltd
  • Member — Association of Computing Machinery (ACM), Midwestern State University
08 / Words

What people say.

Sanithu moves ideas into production fast, with taste.

Bryln McCoy

Business Owner · McCoy's Roofing

He takes a deep understanding of computer science into goals to bring concepts to reality.

Bailey Tate

Friend / Peer

The chillest guy I ever met.

Ethan

Friend

/ 09 — Resume

Want the printable version?

Grab the resume PDF and we can talk specifics.

10 / Contact

Let's work together.

Internships, full-time roles, founder collaborations, or research partners — I am open to all of it. I respond within 24 hours.