2023
Founded Duoph Technologies — still founder
Founder, Duoph Technologies
Backend.
Distributed
systems.
Applied AI.
I'm Hadi Razal, founder of Duoph Technologies — the software company I started in 2023 and still run. I also ship production backends, SaaS, and applied AI in live operations across the UAE and India. Python, TypeScript, Java — system design, distributed systems, and database internals.
Available for selected work · Dubai, UAE
3+
Years shipping production systems
35k+
Exhibitor records in FairPlatz Brain
10k+
Employees on HR automation
01
Loud projects.
Production systems plus the ones I built to understand the metal — indexes, storage, transformers, queues.
01Production AI
FairPlatz Brain
Exhibition intelligence on 35,000+ exhibitor records — floorplan extraction, entity normalization, lead scoring, pricing insight, and automated research workflows.
- Next.js
- TypeScript
- Python
- RAG
02ANN · from scratch
HNSW Vector Search
Hierarchical Navigable Small World indexing built by hand: multilayer graphs, greedy descent, heuristic pruning, custom cosine / Euclidean kernels, persistence, and recall-vs-latency benches.
- Python
- C++
- Graph index
03Storage engine
MiniDB
Paged storage engine with slotted pages, a buffer pool, B+ tree indexes, write-ahead logging, crash recovery by killing the process mid-write, then a parse → plan → execute query path.
- C++
- B+ trees
- WAL
04Deep learning
Transformer from Scratch
Decoder-only language model with no high-level LLM libraries. BPE, causal multi-head attention, scheduled training, then generation with temperature, top-k, and nucleus sampling.
- PyTorch
- BPE
- Attention
05Workers · Kafka
Distributed Job Platform
Fault-tolerant workers with visibility leases, exponential backoff, idempotency keys, dead-letter routing, heartbeat reclaim for crashed workers, and queue-depth metrics.
- Java
- Spring Boot
- Kafka
- Redis
06Live SaaS
Product Share
Digital product marketplace: checkout, RBAC, buyer-only file delivery, realtime sales analytics, and Razorpay webhook verification so downloads only fire after confirmed payment.
- Next.js
- Firebase
- Razorpay
07Enterprise AI
Policy HR Assistant
Policy-grounded assistant that cut average HR response time by over 60%, wired into ticketing, approvals, escalations, and Teams notifications.
- OpenAI
- RAG
- Teams
0810,000+ employees
HR Automation Mesh
Approvals, international assignments, compensation, benefits, and document workflows across Microsoft 365, SharePoint, SAP, and Power BI — including payroll anomaly detection.
- Power Platform
- UiPath
- n8n
- SAP
02
Work history.
Founder of Duoph Technologies (2023 — present), plus roles at FairPlatz and Etihad.
Founder
- Founded Duoph Technologies in 2023 and remain the founder — still owning the company, product direction, and delivery.
- Build and ship client-facing SaaS, dashboards, workflow automation, and AI-integrated applications end to end: architecture, APIs, tests, and releases.
- Work directly with clients to turn requirements into maintainable products and keep live systems healthy across concurrent engagements.
Software Engineer, Automation & Applied AI
- Own end-to-end delivery across sales, finance, HR, marketing, and operations — internal apps, APIs, and data pipelines from discovery through deployment.
- Architected FairPlatz Brain on 35,000+ exhibitor records: floorplan extraction, entity normalization, lead scoring, pricing insight, and automated research.
- Shipped Next.js / TypeScript internal tools with RBAC dashboards, automated follow-ups, scheduled pipelines, and business-critical integrations.
AI Automation & Software Developer
- Built enterprise HR automation for 10,000+ employees across approvals, international assignments, compensation, benefits, and documents.
- Developed a policy-aware HR assistant on OpenAI models that reduced average response time by over 60%.
- Delivered Power Apps and Power BI for salary structures, payroll anomaly detection, and analytics across SharePoint, SAP, and Microsoft data.
03
The whole kit.
From the CV — languages, systems, data/AI, frontend, cloud, and automation. Not a polite shortlist.
Languages
- Python
- TypeScript
- JavaScript
- Java
- C++
- SQL
Backend & systems
- Node.js
- Express
- FastAPI
- Spring Boot
- REST
- WebSockets
- gRPC
- Kafka
- Redis
- Queues
- Caching
- Microservices
- Auth / RBAC
- Concurrency
- Pytest
- Jest
- JUnit
Data & AI
- PostgreSQL
- MySQL
- MongoDB
- Supabase
- Firebase
- pgvector
- ChromaDB
- PyTorch
- Transformers
- RAG
- Embeddings
- Vector search
- LoRA fine-tuning
- scikit-learn
- XGBoost
- Pandas
Frontend
- React
- Next.js
- React Native
- Tailwind CSS
- Redux
- Zustand
Cloud & automation
- Docker
- Linux
- Git
- GitHub Actions
- CI/CD
- AWS
- Azure
- Vercel
- Monitoring
- n8n
- UiPath
- Power Platform
- Zoho APIs
04