Senior Backend / Fullstack Developer

I develop the backend architecture for a banking application and CRM in short delivery cycles for investor demonstrations. I use NestJS, TypeScript, PostgreSQL, TypeORM, AWS S3, SSE, Firebase Cloud Messaging, and external banking and financial APIs.

I built a multi-stage KYC verification workflow with AU10TIX and secure S3 document processing, including synchronization with a legacy banking environment. I also implemented an internal event bus for configurable CRM business rules, a batched push/SMS notification module, SSO role checks, and CRM permission mapping.

I designed integrations with BTB banking APIs, Priority ERP, and Okoora payment services. This included resolving external API contract issues, synchronizing financial documents and tax reporting, handling request timeouts, and redesigning registration and KYC validation flows.

I provided end-to-end architecture, development, and technical leadership for crypto, fintech, and AI projects. My work included Node.js, React, MongoDB, WebSockets, and integrations with Binance, Bybit, BestChange, OpenAI, and TradingView APIs.

I built a crypto CRM for adaptive exchange-rate management, including real-time order-book analysis, margin controls, and protection against market manipulation. I also developed a backtesting platform with a custom declarative strategy language, historical risk and profit calculations, charts, and loss-point analysis.

For automated trading, I designed a multi-account trading architecture with dynamic risk weights and hidden order-placement logic. I also led the development of Talent Popcorn, an AI HR-tech MVP for resume matching and deduplication, established technical team processes, and helped the product secure a relocation grant to Portugal.

I developed and optimized backend architecture for a high-load gaming platform using Node.js, Koa, RabbitMQ, PostgreSQL, and Redis.

I created a configurable payment-provider gateway that allowed new providers to be connected through configuration files without code changes or deployment. I also implemented account deduplication and anti-fraud logic, while managing frontend developers and game-provider integration specialists.

I taught fullstack web development in an intensive bootcamp format using JavaScript, Node.js, Express, React, and Redux.

I delivered lectures on web application architecture and databases, conducted code reviews, and mentored team graduation projects. My work focused on preparing students for commercial software development roles.

I developed specialized software and interactive simulator applications in C# for Israeli Air Force needs.

I designed physical-process simulation algorithms in a regulated environment with high requirements for software stability and work within a closed data perimeter.

I was invited to teach a specialized web development course after completing my college education in Rehovot, Israel.

I taught HTML5, CSS3, JavaScript, interface design, basic server-side logic, and client-server interaction fundamentals.

Completed two years at the Faculty of Mechanical Engineering Technologies, Department MT-11, with a specialization in machines and robots.

Completed a one-year Fullstack Developer professional program.

Developed an isolated recommendation microservice for matching candidates and vacancies. Implemented tag-matrix and interest-vector algorithms that calculated candidate-skill relevance based on HR specialist click and selection behavior.