11/11/2026 updated
100 % available
AI-Native Engineering Leader | Fractional CTO | Backend & Systems Architect
Barcelona, Spain
Only remote
Master's degree, Journalism - Kyiv National Taras Shevchenko UniversityAI AgentsGCPGoogle BigQueryMobile Application DevelopmentPostgreSQLNode.jsNext.jsSQL and Java (SQLJ)TypeScriptSwift (Programming Language)GraphQLRestful Api
AI Engineering & Enablement
Expertise in Claude Code and agent workflows, parallel agent sessions, agent loops, custom skills, automated PR review and auto-merge pipelines, Cursor, and AI codegen. Design and rollout of agent-first engineering workflows across teams, achieving roughly 10x delivery throughput improvement.
Backend & Data Engineering
Proficiency in Node.js, TypeScript, GraphQL, PostgreSQL, Redis, GCP (BigQuery, Workflows), dbt, and CI/CD with GitHub Actions. Architecture and delivery of distributed systems processing millions of records, including data pipelines, APIs for enrichment, analytics, and workflow automation.
Systems Architecture & Distributed Systems
Design of distributed systems, API architecture, data pipelines, and workflow automation. Ownership of architecture, quality gates, and outcomes for large-scale backend and automation platforms in fintech and education sectors.
Engineering Leadership & Technology Strategy
Ownership of technology roadmap, contractor management, team process design, and hiring and onboarding of AI practices. Experience as sole technology lead and part-time CTO for a 50-person company with no in-house engineering team.
Mobile Development (iOS)
Development of native iOS applications using Swift, UIKit, RxSwift, CoreData, and BLE. Shipped enterprise mobile apps for Fortune 500 clients and built Bluetooth sync with glucose meters for real-time health data in a regulated connected-health product.
CI/CD & Automation Pipelines
Setup of Fastlane CI/CD and SwiftLint automation, autonomous PR pipelines with GitHub Actions, and scheduled maintenance agents for daily reconciliation of merged and open PRs.
IoT & Connected Hardware
Development of IoT control applications using BLE smart blinds and WebSocket telemetry. Built mobile and IoT products for travel, fintech, and hardware clients as founder of a development studio.
Tools & Collaboration Platforms
Proficient use of GitHub, Linear, and Slack for engineering coordination, agent communication protocols, and team-wide process rollout.
Expertise in Claude Code and agent workflows, parallel agent sessions, agent loops, custom skills, automated PR review and auto-merge pipelines, Cursor, and AI codegen. Design and rollout of agent-first engineering workflows across teams, achieving roughly 10x delivery throughput improvement.
Backend & Data Engineering
Proficiency in Node.js, TypeScript, GraphQL, PostgreSQL, Redis, GCP (BigQuery, Workflows), dbt, and CI/CD with GitHub Actions. Architecture and delivery of distributed systems processing millions of records, including data pipelines, APIs for enrichment, analytics, and workflow automation.
Systems Architecture & Distributed Systems
Design of distributed systems, API architecture, data pipelines, and workflow automation. Ownership of architecture, quality gates, and outcomes for large-scale backend and automation platforms in fintech and education sectors.
Engineering Leadership & Technology Strategy
Ownership of technology roadmap, contractor management, team process design, and hiring and onboarding of AI practices. Experience as sole technology lead and part-time CTO for a 50-person company with no in-house engineering team.
Mobile Development (iOS)
Development of native iOS applications using Swift, UIKit, RxSwift, CoreData, and BLE. Shipped enterprise mobile apps for Fortune 500 clients and built Bluetooth sync with glucose meters for real-time health data in a regulated connected-health product.
CI/CD & Automation Pipelines
Setup of Fastlane CI/CD and SwiftLint automation, autonomous PR pipelines with GitHub Actions, and scheduled maintenance agents for daily reconciliation of merged and open PRs.
IoT & Connected Hardware
Development of IoT control applications using BLE smart blinds and WebSocket telemetry. Built mobile and IoT products for travel, fintech, and hardware clients as founder of a development studio.
Tools & Collaboration Platforms
Proficient use of GitHub, Linear, and Slack for engineering coordination, agent communication protocols, and team-wide process rollout.
Experience
Professional experience10+ years
Freelancer since2018
Languages
EnglishFluentRussianNative speaker
Project history
Sole technology lead for a ~50-person education company with no in-house engineering team. Owns the technology strategy and roadmap, selects and manages external contractors, sets scope, standards and acceptance criteria, and runs delivery agent-first so one technical lead covers what would normally need a small team.
Joined to build CRED's investment platform from scratch as its iOS engineer; grew into ownership of backend, data and automation systems. Architected distributed systems behind CRED's data and automation platform (Node.js, TypeScript, GCP BigQuery & Workflows, dbt), processing millions of records. Built APIs for enrichment, analytics and workflow automation. Implemented autonomous PR pipeline with GitHub Actions, agent communication protocol via Slack and Linear, and agent briefings. Designed and shipped the original native iOS app (Swift, GraphQL).
Built Bluetooth sync with glucose meters for real-time health data in a regulated connected-health product. Helped the app reach a 4.7-star App Store rating with thousands of active users.