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Jón Jónsson

@drapolyuk

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Senior software engineer specializing in AI/LLM tooling and mobile systems, with proven leadership and product impact.

Georgia

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What I'm looking for

I want to build AI developer tools and LLM-powered products at a small, fast-moving team where I can own technical decisions end-to-end. Most interested in MCP, multi-model orchestration, AI agents, and mobile platforms — ideally at a company shipping to real users, not just demos. Remote-first, strong engineering culture, minimal process overhead.

Senior software engineer with 10+ years shipping mobile products and AI-enabled features at scale. Creator of mcp-rubber-duck — an open-source MCP server for multi-LLM orchestration (138+ GitHub stars, 19 forks). Recently cut AI translation costs by 99% by replacing a $1,000/mo service with a $10/mo LLM pipeline, built a chatbot handling 30K+ daily conversations for a 20M-user platform, and led a team of 3 to deliver an AI-powered medical app in 3 months with safety guardrails.

My work spans Flutter mobile development, AI/LLM tooling, blockchain, and backend systems. I've shipped apps used by millions, architected Ever Wallet (100K+ downloads) with a Flutter-Rust bridge for Solana/TON, and created open-source Dart packages adopted across teams. Led engineering groups of 3–15 across crypto, healthcare, and enterprise B2B — comfortable operating as a hands-on IC, a tech lead, or a CTO.

Published 14 technical articles on dev.to, Medium, and Hashnode covering MCP architecture, multi-model orchestration, and Flutter best practices. Based in Tbilisi, Georgia with 4–6h overlap with US East and full EU coverage. Looking for remote roles in AI developer tooling, mobile platforms, or product engineering.

Experience

Work history, roles, and key accomplishments

Current

Senior Mobile Developer

Current

Sweat Economy

Apr 2025 - Present (10 months)

Built an AI chatbot handling 30K+ daily conversations and implemented an LLM-based translation pipeline that reduced costs from $1,000/mo to under $10/mo and translates full app localization in ~6 minutes across 20+ languages.

Flutter Prompt Engineering Translation Localization Serverpod CI CD

Current

Fractional CTO

Current

DevArtel

Aug 2022 - Present (3 years 6 months)

Set technical strategy, architecture, and hiring for a software consultancy and delivered a competition shooting scoring system (Flutter + Serverpod) adopted at regional and national competitions.

Technical Strategy Architecture Flutter Serverpod Team Leadership Hiring CI CD Cross Platform Development

Lead Mobile Developer

We Are Mobile First

Nov 2024 - Apr 2025 (5 months)

Led a team of 3 to deliver an AI-centric medical app in 3 months with prompt guardrails for safe clinical outputs and built an AI-assisted food tracker from concept to production with real user adoption.

Flutter Prompt Engineering Product delivery Team Leadership UX

Lead Mobile Developer

Callgear

Nov 2023 - Nov 2024 (1 year)

Led a team of 8 to develop a Flutter SIP softphone with chat, checklists, and corporate directory for 2,300+ enterprise clients and owned mobile architecture including VoIP, push notifications, and background call handling.

Flutter VoIP Push Notifications Mobile Architecture Team Leadership CI CD

Lead Mobile Developer

Broxus

Oct 2022 - Nov 2023 (1 year 1 month)

Architected and shipped Ever Wallet (100K+ downloads), created a Flutter-Rust bridge with automated codegen, and produced open-source packages reused across the ecosystem.

Flutter Rust FFI Interop Mobile Security Crypto Wallets Open Source CI CD

Lead Mobile Developer

TalentTech PLC

Nov 2019 - Sep 2022 (2 years 10 months)

Led mobile development of an employee onboarding and adaptation platform with gamification for enterprise clients and established mobile architecture standards and CI/CD pipelines to improve release cadence.

Flutter Mobile Architecture CI CD Gamification Team Leadership PostgreSQL Release Management

Lead Mobile Developer

Netologia Group PLC

Feb 2018 - Nov 2019 (1 year 9 months)

Led a team of 7 to ship two products for Foxford (digital textbook and online classroom) serving 7.5M+ users, including live video streaming and real-time teacher communication features.

Mobile Development Live Streaming Real Time Communications Flutter Team Leadership Edtech Scalability CI CD

Education

Degrees, certifications, and relevant coursework

Voronezh State Technical University

Radio Engineering

Activities and societies: RIPE DB maintainer since 2002; Arctic Code Vault Contributor; contributor to 50 GitHub repositories.

Studied Radio Engineering at Voronezh State Technical University; background includes long-term technical and engineering work reflected in professional projects and open-source contributions.