STANISLAW BARANSKI
Software Engineer · Research Engineer · Distributed Systems · Applied Cryptography · AI
Poland [email protected] stan.bar /stanbar /in/stanbar ORCIDProfile
Software engineer and researcher with 10+ years of experience building production software and research prototypes, often working with emerging technologies. Built and operated a consumer product with 3M+ downloads and 200k active users. Finishing a PhD in secure distributed systems with 9 first-author publications. Experience spans distributed systems, applied cryptography, blockchain and DeFi, and applied AI.
Skills
Software engineering
Blockchain & cryptography
Applied AI
Experience
Research Engineer
04.2026 - present- Migrated research and intelligent-service workloads to Kubernetes; maintained GitLab CI/CD pipelines and Grafana monitoring.
- Fine-tuned language models for AI-powered legal-service applications, moving research prototypes toward operational deployment.
- Developed real-time AI chat-assistance functionality for a personality-assessment service.
- Designed and published an anonymous service-provision protocol using blockchain and decentralized storage.
Research Engineer, Assistant & Lecturer
08.2020 - present- Designed and implemented protocols ensuring security and privacy in distributed systems based on distributed ledger technology.
- Designed Federated Distributed Key Generation (FDKG), including its formal model and security proofs, and implemented its experimental evaluation in Rust (FGCS, 2025).
- Developed a quantitative framework for reasoning about trust, compromise, and collusion, and designed published protocols for privacy-sensitive applications.
- Taught Cryptography and Blockchain Technologies for 3+ years, supervised student research and engineering projects, and published 9 first-author papers.
- Built prototypes in Rust, Go, Python, TypeScript, Solidity, and Circom across distributed systems, blockchain, privacy, MPC, threshold cryptography, and zero-knowledge systems.
Founder & Lead Software Engineer
2019 - 2024- Built and grew Vape Tool to 3M+ downloads and approximately 200k active users, leading product and engineering decisions across Android, iOS, web, backend, monetization, and internal tooling.
- Hired and managed developers for internal tools, managed an external company developing the iOS application, and collaborated with other engineers on the web application.
- Designed and implemented the backend for a healthcare startup, including authentication, multi-device synchronization, serverless functions, and a NoSQL data model.
- Architected and implemented the backend of Tax Ledger, a cryptocurrency tax-accounting product processing blockchain transaction data.
Android Software Engineer
10.2014 - 01.2021- Delivered Android applications and features end-to-end for commercial projects.
- Worked directly with clients and loosely defined product requirements, translating them into shipped software integrated with backend systems and external services.
Selected Projects
Stellot
Distributed Systems · Blockchain · CryptographyDesigned and built an end-to-end verifiable internet-voting protocol on Stellar using blind signatures and timed encryption for ballot privacy. Received a Stellar Community Fund award.
Ethereum & DeFi
Blockchain · Distributed Systems · Financial SystemsOperate an Ethereum validator and operate a delta-neutral Uniswap liquidity strategy. Experience with validator infrastructure, smart-contract interaction, AMMs, hedging, liquidity management, on-chain monitoring, protocol mechanics, and operational risk.
Objective Personality AI
AI Engineering · Agentic Workflows · Applied ResearchDeveloping an AI-assisted system for structured personality assessment from conversational interviews and multimodal evidence. Built workflows for interview orchestration, evidence extraction, structured scoring, and LLM-assisted analysis.
OnlyTypes
Software Product · AI · Browser EngineeringBuilt a browser extension and web application combining structured personality data with public web profiles. Work spans browser-extension development, backend and frontend architecture, data integration, AI-assisted analysis, and product design.
Education
PhD in Computer Science
10.2020 - Present
Thesis: Compromise-Resistant Protocols for Sensitive Services in Distributed Systems
Supervisor: Julian Szymański
MSc in Computer Science
03.2019 - 09.2020
Thesis: Blockchain-based mitigation of content poisoning attacks in information-centric networks
Supervisor: Jerzy Konorski
BEng in Computer Science
09.2015 - 02.2019
Thesis: Bitcoin wallet with multi-factor hybrid hardware-network authentication
Supervisor: Tomasz Gierszewski
