I'm a Senior Full Stack Engineer with 19+ years building production-grade financial and blockchain platforms. I specialize in end-to-end delivery of crypto trading systems—from real-time market data feeds and order execution workflows to portfolio tracking, copy trading mechanics, and exchange API integrations (Binance, Coinbase, Kraken). I work across React/TypeScript frontends, Node.js/Express backends, and smart-contract-connected architectures across Ethereum, Solana, and Bitcoin networks. I thrive in lean remote teams and focus on security and compliance in regulated fintech environments. I'm adept at shipping scalable features, leading architecture discussions, and delivering audit-ready software. I’m comfortable with exchange connectivity, on/off-ramp workflows, KYC-integrated wallets, and institutional treasury ops, and I continuously explore emerging tech in Web3, cloud, and data engineering.

Muhammed Eren

I'm a Senior Full Stack Engineer with 19+ years building production-grade financial and blockchain platforms. I specialize in end-to-end delivery of crypto trading systems—from real-time market data feeds and order execution workflows to portfolio tracking, copy trading mechanics, and exchange API integrations (Binance, Coinbase, Kraken). I work across React/TypeScript frontends, Node.js/Express backends, and smart-contract-connected architectures across Ethereum, Solana, and Bitcoin networks. I thrive in lean remote teams and focus on security and compliance in regulated fintech environments. I'm adept at shipping scalable features, leading architecture discussions, and delivering audit-ready software. I’m comfortable with exchange connectivity, on/off-ramp workflows, KYC-integrated wallets, and institutional treasury ops, and I continuously explore emerging tech in Web3, cloud, and data engineering.

Available to hire

I’m a Senior Full Stack Engineer with 19+ years building production-grade financial and blockchain platforms. I specialize in end-to-end delivery of crypto trading systems—from real-time market data feeds and order execution workflows to portfolio tracking, copy trading mechanics, and exchange API integrations (Binance, Coinbase, Kraken). I work across React/TypeScript frontends, Node.js/Express backends, and smart-contract-connected architectures across Ethereum, Solana, and Bitcoin networks. I thrive in lean remote teams and focus on security and compliance in regulated fintech environments.

I’m adept at shipping scalable features, leading architecture discussions, and delivering audit-ready software. I’m comfortable with exchange connectivity, on/off-ramp workflows, KYC-integrated wallets, and institutional treasury ops, and I continuously explore emerging tech in Web3, cloud, and data engineering.

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Experience Level

Expert
Expert
Expert
Expert
Expert

Language

English
Fluent

Work Experience

Technical Architect / Full Stack Engineer at Fintech Startup (Crypto Wallet & Settlement Platform)
May 1, 2025 - Present
Built full-stack features for a multi-chain crypto wallet and payment settlement platform. Integrated payment provider APIs (Triple-A, Noah, Request Finance) for pay-ins and payouts; engineered on-ramp/off-ramp workflows for USDC/USDT across Ethereum-compatible chains, Solana, Bitcoin, and Celo, including dynamic routing and cost optimization. Developed React/TypeScript frontend components for wallet lifecycle management with real-time balance updates via WebSocket. Implemented high-volume transaction reconciliation microservices, secure API gateway contracts, and audit-ready reporting. Delivered KYC-integrated wallet flows and treasury management features.
Sr Lead Technical Architect at S&P Global
July 1, 2024 - April 1, 2025
Led architecture for blockchain-enabled carbon registry and trading connectivity platform — a regulated, high-throughput financial data system. Architected REST microservices for settlement, clearing, and post-trade transparency; Built scalable data ingestion pipelines (Databricks, Delta Lake, Airflow) powering real-time analytics and compliance reporting. Designed ERC-1155 / ERC-721 tokenisation frameworks for on-chain assets with auditability requirements. Led cross-functional engineering squads and established API governance, CI/CD standards, and monitoring (AWS tooling).
Lead Technical Architect / Full Stack Engineer at Climacarta — Web3 Startup
February 1, 2023 - June 1, 2024
Full-stack ownership of a carbon tokenisation and marketplace platform built on AWS. Built a modular crypto wallet integrated with Solidity smart contracts and event-driven AWS EventBridge infrastructure. Developed .NET Core / Node.js backend services connecting on-chain events with off-chain enterprise workflows. Produced SDKs and RESTful APIs enabling external marketplaces to integrate with on-chain assets — analogous to exchange connectivity. Implemented event sourcing, real-time blockchain event streams, and CI/CD pipelines for production deployments. Designed distributed data transformation pipelines (Databricks) for real-time analytics layers.
Software Architect at Hamilton Crypto-Exchange Company
May 1, 2021 - February 1, 2023
Core architecture role at a regulated crypto exchange, delivering B2B and B2C blockchain-based payment gateway infrastructure for secure exchange operations. Implemented high-volume event-driven transaction processing with Kafka Pub/Sub for low-latency settlement flows. Built OAuth 2.0 SSO and RSA-based cryptographic signature verification for secure institutional communications. Developed ML-based transaction validation classifiers improving fraud detection and risk screening. Architected performant microservices using .NET Core and event-driven patterns.
AI/ML Engineer at Moody's Analytics (formerly RiskFirst)
June 1, 2019 - March 1, 2021
Designed and deployed NLP automation pipelines on Azure, reducing manual processing time. Built end-to-end Azure ML pipelines from experimentation through to production with full MLOps governance. Delivered Azure Durable Functions workflows, Terraform IaC, and DataDog observability across enterprise environments.
Consulting Application Engineer (Team Lead) at QNB Finansbank – IBTECH
January 1, 2011 - January 1, 2018
Delivered next-generation online banking applications (serving millions); developed greenfield REST API middleware bridging digital channels and core banking legacy systems. Built NLP-enhanced IVR, chatbot, and CTI integrations — full-stack delivery across TypeScript, C#, Java, and SQL Server. Led cross-functional teams applying OWASP, TDD, SonarQube, and SOLID standards in production.
Senior Software Developer at VakıfBank
January 1, 2009 - January 1, 2011
Online banking application development with core banking integrations and security-focused software delivery.
Software Developer at Meteksan Systems
January 1, 2007 - January 1, 2009
Developed greenfield REST API middleware bridging digital channels and core banking legacy systems.

Education

BSc Computer Engineering at Kocaeli University
January 11, 2030 - June 2, 2026

Qualifications

Stanford Blockchain & Cryptocurrency
January 11, 2030 - June 2, 2026
TOGAF (In Progress)
January 11, 2030 - June 2, 2026
LangChain for LLM Apps
January 11, 2030 - June 2, 2026
HuggingFace Transformers
January 11, 2030 - June 2, 2026
Python for ML (Coursera)
January 11, 2030 - June 2, 2026

Industry Experience

Financial Services, Software & Internet, Professional Services