Alex Stoliar

Engineer. Builder. Problem Solver.

I research, design, and build complex systems — from distributed backends and blockchain infrastructure to AI-powered agentic architectures. I think beyond code: product, business, and incentive design shape how I work.

Get in touch View my work

About

I'm a highly experienced software engineer with ~9 years of building things that matter, focusing on backend and systems work. I take projects from zero to production — from initial research and ideation through architecture, development, and deployment of systems that are stable, scalable, and secure. I'm proactive and self-managed. My deepest expertise is in blockchain, and I've been hands-on with AI since ChatGPT's release, including building multi-agent agentic systems.

I hold two US patents in blockchain address identification. I think deeply about product and business — not just code. I mentor engineers, raise code quality bars, and care about building systems that are powerful, understandable, and resilient.

I'm a husband and dad of 3 energetic boys. When I'm not engineering, you'll find me hiking trails, exploring ideas over good conversation, playing guitar (sometimes), or deep in a Civilization or Fallout game. I love prog rock and believe in constant self-improvement. Always happy to hear from people — whether you have an idea to share, a question to ask, or just want to connect.

LocationModi'in, Israel · Tel Aviv Area

EducationBSc, Computer Science, Ben-Gurion University of the Negev

LanguagesEnglish, Hebrew, Russian

Experience

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Software Engineer

Tres → Fireblocks

2024 – Present

Tel Aviv Area

Freelance consultant (~60%) at Tres via WoodWorks Labs, continuing at Fireblocks after the acquisition. Building blockchain integrations to fetch historical and real-time balances and positions across multiple chains and protocols. Built a notable system for fetching positions on Solana protocols. Currently also developing an agentic AI system.

Solana protocol position trackingMulti-chain blockchain integrationsAgentic AI system developmentTres acquired by Fireblocks

Senior Software Engineer (Fullstack)

SSV Labs

Oct 2023 – Sep 2024

Tel Aviv, Israel

Led the backend team in a full-stack squad. Built and maintained systems processing smart contract and Beacon chain data. Mentored junior developers, conducted in-depth code reviews, and refactored legacy components for performance.

Led back-end team (2 BE + 2 FE developers)NestJS + Redis + PostgreSQL architecturePython Django service with ElasticsearchMentored junior developers across the stack

Software Engineer

Certora

Mar 2022 – Oct 2023

Tel Aviv, Israel

Contributed to the Fuzzer product, engineering a path pruning algorithm for performance optimization. Led design and implementation of a data collection and processing pipeline.

Path pruning algorithm for Fuzzer productData pipeline: SQS → Lambda → DBCustom analytics dashboard

Blockchain Developer

JPMorgan Chase & Co.

Mar 2021 – Mar 2022

Herzliya, Israel

Identified clusters of illicit cryptocurrency addresses across Bitcoin and Ethereum. Discovered an exploit revealing real identities behind ~300,000 Ethereum addresses. Research led to two US patents.

Discovered exploit revealing ~300K Ethereum address identitiesBitcoin & Ethereum address clustering algorithms2 US patents filed from this workKotlin + SQL backend

Software Developer

COTI Group

Jan 2019 – Mar 2021

Tel Aviv, Israel

Contributed to COTI's distributed DAG blockchain. Built applications handling Bitcoin and Ethereum transactions, implemented the staking mechanism, and built a Cardano-based merchant payment system.

Distributed DAG blockchain developmentCOTI staking mechanismCardano merchant payment systemBTC & ETH transaction processing

Software Engineer

ECI Telecom

Aug 2017 – Jan 2019

Omer, Israel

Java Spring Boot developer working on telecom infrastructure systems.

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Software Developer

BGU Robotics Lab → Pozidrones → Aeronautics

May 2015 – May 2017

Beer Sheva, Israel

Started at BGU Robotics Lab, implementing a communication protocol between an antenna and a drone for dynamic position tracking. Continued at Pozidrones (founded by the lab manager), later acquired by Aeronautics. Worked with MAVLink and drone systems.

Drone-antenna communication protocolMAVLink integrationPozidrones acquired by Aeronautics

Projects

Featured

gigmolt.com→

A gig marketplace where humans and AI agents can post gigs, and agents can register, take gigs, and get paid.

AI AgentsMarketplaceVercel

Featured

Multi-Agent AI System

Personal AI assistant with multiple specialized agents. Dynamic agent creation, context-aware, voice-first, privacy-first. Built from idea to working mobile app in 3 hours.

AIMulti-AgentMobileVoice

Featured

identifyeth→

Maps Kovan testnet faucet addresses to GitHub/Twitter/GitLab accounts. Related to the Ethereum identity discovery work at JPMorgan.

EthereumOpen SourceJavaScript

BotGPT (Deprecated)

Telegram bot providing ChatGPT access directly from Telegram. Launched when GPT was first released — grew x2 daily, reaching thousands of daily users within two weeks. Shut down as it wasn't the right time for a startup.

AITelegramPythonDeprecated