Andrii Tymoshchuk
@andriitymoshchuk
Senior iOS/macOS Developer at Spellar AI, who eliminated recurring recording hangs and crashes.
UkraineWhat I'm looking for
At Spellar AI, I’m the main contributor to the macOS and iOS meeting recorder, working on its recording engine, transcription, and calendar integration. I eliminated meeting-detection hangs that had generated about 930 Sentry events, and fixed recurring crashes and recording freezes.
I also built a speaker-diarization evaluation harness using 418 public recordings. The validated engine upgrade reduced speaker confusion from 23% to 6% on the AMI benchmark and is pending release.
As a freelance AI Automation Engineer, I designed a self-hosted assistant with 25 n8n workflows for an SEO content team. It cut hands-on time per article from 45–50 minutes to 3–5 minutes, with review and approval steps kept in the workflow.
Earlier, I developed iOS app features at PeaksCircle Software and DBOSoft, and built an iOS app from scratch at NoNameDigital. I’m aiming to lead a team within five years.
Experience
Work history, roles, and key accomplishments
AI Automation Engineer
Freelance
Jan 2026 - Present (9 months)
Designed and built a self-hosted AI assistant for an SEO content team, cutting hands-on time per article by ~90%. Built Slack control plane and Docker Compose stack.
Senior Software Engineer
Spellar AI
Sep 2025 - Present (1 year 1 month)
Main contributor to native macOS/iOS apps, owning stability work end to end. Built web features and Chrome extension, and contributed to backend.
iOS Developer
PeaksCircle Software
Jan 2023 - Feb 2024 (1 year 1 month)
Developed features for HealthTracker, Weather and Meditation apps; integrated Apple Maps, Google Maps and Firebase. Built reactive components with Combine and implemented WidgetKit and WatchKit extensions.
iOS Developer
NoName Digital
Apr 2023 - Oct 2023 (6 months)
Built an iOS app from scratch: UIKit UI from Figma designs, Twilio communication and AVFoundation media features.
Education
Degrees, certifications, and relevant coursework
Andrii hasn't added their education
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Tech stack
Software and tools used professionally
Availability
Location
UkraineAuthorized to work in
Salary expectations
Job categories
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