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samar-syd7/README.md

Samar Abbas

Backend Engineer

Building software across Healthcare, Financial Infrastructure, and Blockchain Systems.

About

I build backend systems that process transactions, exchange healthcare data, coordinate distributed workloads, and interact with blockchain networks.

My interests include distributed systems, event-driven architectures, financial infrastructure, healthcare interoperability, smart contract development, and reliability engineering.

Featured Work

🩺 Healthcare Infrastructure

  • PACS Server
  • HL7 Integration Engine
  • FHIR-Based Systems
  • DICOM Processing Workflows

Building systems for healthcare interoperability, medical imaging, and clinical data exchange.

💳 Financial Infrastructure

  • Transaction Monitoring Platform
  • Risk Evaluation Workflows
  • Event Processing Pipelines
  • Audit & Compliance Systems

Focused on reliable transaction processing and operational visibility.

⚡ Trading Systems

  • Perpetual DEX Matching Engine
  • Real-Time Order Processing
  • Deterministic Execution Logic

Designed around correctness, replayability, and low-latency execution.

⛓️ Blockchain Infrastructure

  • Atlas Staking Protocol
  • Atlas ZK Rollup
  • Asset Tokenization Platform

Working with smart contracts, settlement systems, and blockchain integrations.

Selected Projects

Project Description
Atlas ZK Rollup Rust-based rollup infrastructure with transaction sequencing, proving systems, and Ethereum settlement.
Atlas Staking Protocol Production-oriented staking protocol built with Solidity and Foundry.
DEX Matching Engine Deterministic matching engine supporting real-time order execution.
Crypto Transaction Monitoring Event-driven monitoring and risk evaluation platform.
PACS Server Medical imaging infrastructure supporting DICOM workflows.
HL7 Integration Engine Healthcare interoperability platform for clinical messaging.

Technologies

Languages
Rust • Go • Java • Python • Solidity • TypeScript

Backend
Spring Boot • Django • Axum • Node.js

Infrastructure
Kafka • PostgreSQL • Redis • Docker • GitHub Actions

Healthcare
FHIR • HL7 • DICOM • PACS

Blockchain
Ethereum • Foundry • OpenZeppelin • Zero-Knowledge Systems

Current Focus

  • Open Source Contributions
  • Distributed Systems
  • Blockchain Infrastructure
  • Healthcare Technology
  • Financial Systems
  • Backend Platform Engineering

Writing

I occasionally write about software engineering, backend development, system design, and lessons learned while building software.

Recent topics include:

  • Software Engineering Lessons
  • Building in Public
  • Backend Architecture
  • Career Growth Through Projects

GitHub Analytics

Building systems, documenting lessons, and continuously improving the engineering behind them.

Pinned Loading

  1. atlas-zk-rollup atlas-zk-rollup Public

    A modular zero-knowledge rollup prototype built in Rust using Halo2, async proving infrastructure, Ethereum settlement, RocksDB persistence, and a concurrent sequencer architecture.

    Solidity

  2. asset-tokenization-platform asset-tokenization-platform Public

    Full-stack Web3 platform for Real-World Asset (RWA) tokenization, enabling on-chain asset ownership, transfer tracking, and event-driven state synchronization using Ethereum smart contracts and mod…

    TypeScript

  3. perp-dex-matching-engine perp-dex-matching-engine Public

    Low-latency perpetual DEX matching engine built in Node.js/TypeScript with price-time priority, advanced order book (price levels + FIFO), WebSocket streaming, and deterministic event sequencing.

    TypeScript

  4. crypto-transaction-monitoring-api crypto-transaction-monitoring-api Public

    Production-grade backend for internal crypto transaction monitoring, deterministic risk scoring, compliance workflows, and immutable audit logging - inspired by real exchange AML systems.

    Python

  5. exchange-ops-automation-service exchange-ops-automation-service Public

    Internal backend service for automating operational tasks in crypto exchanges, focusing on reliability, idempotency, scheduling, and distributed job execution using FastAPI, APScheduler, and Celery.

    Python

  6. samar-syd7 samar-syd7 Public

    Backend Systems Engineer | HealthTech (HL7/FHIR) | Blockchain & FinTech Infrastructure