irfansaric

Engineered a cross-platform desktop/server client enabling decentralized compute and storage Extended and optimized the IPFS protocol with a custom DHT implementation, improving data availability and lookup performance Designed and implemented a robust decentralized task scheduling system with dynamic node allocation, improving compute distribution by 40% Refactored and modularized legacy peer codebase, increasing stability across Linux, macOS, and Windows nodes Collaborated with R&D on consensus and fault-tolerant algorithms for decentralized task execution

Led backend design and infrastructure for a financial platform integrating crypto (ETH/BTC) and OpenBanking payments. Built highly available infrastructure with AWS ECS, PostgreSQL (multi-AZ), and CI/CD via GitHub Actions. Designed modular architecture supporting KYC (Sumsub), fraud detection, AML monitoring, and 3D secure transaction flows. Successfully onboarded banking providers (Bankera, Paynetics) and a liquidity provider (Hercle), accelerating time-to-market by 6 weeks. Facilitated strategic technical discussions with co-founders and investors, aligning product roadmap with scalable backend design.

Spearheaded architecture and engineering roadmap for NFT checkout, Solana minting, and crypto payments (Coinbase, EVM). Designed and deployed smart contracts in Rust for Solana, achieving sub-second minting performance. Scaled the platform’s crypto payment infrastructure to support >$60M in annual GMV. Introduced team KPIs and delivery metrics, improving engineering output visibility and cycle time. Led backend and DevOps across AWS, Kubernetes, and internal monitoring systems.

Developed critical services for AnyHedge, including oracle and hedging logic for BCH smart contracts. Automated deployment pipelines for oracle clusters using Kubernetes on AWS, reducing downtime by 30%. Implemented secure networking layers for high-availability financial data distribution.

Led backend architecture and DevOps for two SaaS products: FindTruckService (US logistics) and TeleMeet (video conferencing). Architected scalable microservices using Go, PostgreSQL, and Kubernetes; enabled 99.9% uptime for real-time services. Managed BE engineering team delivery; implemented CI/CD pipelines and AWS-based deployment workflows. Refactored legacy systems for performance and scalability improvements.

Developed a distributed crypto market data collection platform using Go, GRPC, Celery, and PostgreSQL. Integrated financial APIs (PSD2, Fiducia, BankVerlag, EBICS) to support OpenBanking services. Designed system for high-throughput data ingestion and real-time analytics for banking/crypto analysis.

Built a distributed data ingestion pipeline across 10+ financial data sources using Go, Kafka, gRPC, and Cassandra. Created a low-latency portfolio management system supporting complex algorithmic strategies and CMAs. Developed custom backtesting framework for real-time trade simulations and OHLCV-based indicators.

Designed and launched real-time data distribution layer using MQTT and FIX for live stock quotes and trading data. Helped lead the ICO backend development for the NAGA Wallet, supporting ERC20 and major cryptocurrencies (Raised $45M in 15 days). Delivered scalable microservices for trading, chat, social features, and integrations with MetaTrader 4. Built core modules for NAGA Exchange including wallet, auth, and risk systems.

Developed and maintained backend services and UI components across 4 projects. Acted as backend lead and architect on MotifNetwork, using Node.js, AngularJS, PostgreSQL, and ElasticSearch. Refactored and supported the CoinDesk Android App (since deprecated). Built real-time messaging and data flow features using ZeroMQ.

Developed core backend systems in C and C# .NET for SMS and VoIP marketing solutions. Built SMPP-based service with multichannel persistence support (Redis, MongoDB, MySQL). Created iOS app from scratch for SMS campaign control (deployed to App Store). Delivered real-time VoIP/Fax services using SIP protocol and RESTful API backend.