01
iOS · Web · Backend
iOS · Web · BackendProduct engineering · AI workspace
Spookling
An AI workspace spanning native chat, calendar tools, browser-based coding, collaboration, search, and connected services.
View case studyOpen to remote work and relocation
Senior software engineer building iOS products and reliable AI applications.
I have 5+ years of experience shipping production software and leading engineering teams across mobile, web, and backend systems. My work combines established iOS expertise with a growing focus on structured LLM systems, retrieval, evaluation, and production AI services.
One engineering career across mobile, web, backend, and AI systems.
5+years shipping production software
5engineers led
99.9%+crash-free delivery
3 surfacesmobile, web, and backend ownership
Selected work · AI and iOS
Explore the work behind reliable digital products.
Whether you’re hiring an engineer or looking for a freelance partner, explore selected AI and iOS work, the decisions behind it, and results delivered.
01
AI application engineering
Evaluated LLM systems, retrieval, and production services.
Receipty, Spookling, Revera, and vision-based mobile products.
Explore AI work 02Senior iOS engineering
Leadership, platform depth, performance, and reliability.
Sellou, LNER, RaceMe, Revera, BrightBike, and mobility SDKs.
Explore iOS workSelected evidence
Different systems. The same delivery discipline.
Four representative projects show how product judgment, explicit constraints, and measurable engineering quality carry across both specializations.
02API · Backend
API · BackendIndependent project · LLM systems
Receipty
A FastAPI receipt pipeline that treats model output as untrusted data, measures extraction quality, and grounds answers in indexed source receipts.
View case study03iOS · watchOS
iOS · watchOSIndependent product · Real-time fitness
RaceMe
A competitive social running app for live races, background tracking, Apple Watch telemetry, leaderboards, and lock-screen race progress.
View case study04
iOS
iOSClient product · Mobility & payments
LNER
A multimodal journey-planning and booking experience connecting rail travel with first- and last-mile mobility.
View case studyExperience
Growing scope, grounded in shipped work.
From iOS engineering and team leadership to product ownership across AI, web, and backend, each step expands the surface area without changing the standard for reliability.
08/2025 — Present
Product Engineer — AI Applications
Sellou · AI Product Studio
United States · Remote
- Built Spookling's iOS and web apps for AI chat, calendar workflows, and browser-based coding.
- Integrated SSE streaming and connected LLM tool calls to native EventKit calendar actions.
- Built workspace and direct-message APIs with AppSync, Lambda, DynamoDB, and OpenSearch.
02/2025 — 08/2025
Senior iOS Engineer / iOS Tech Lead
Sellou · Consumer App Studio
United States · Remote
- Progressed to leading the iOS team and introduced CI/CD workflows that cut release cycle time by 50%.
- Cut playback startup by 40% with AVKit/HLS and initial download size by 20% with On-Demand Resources.
02/2024 — 02/2025
iOS Team Lead
Iomob · B2B Mobility-as-a-Service Platform
Barcelona, Spain · Remote
- Led five iOS engineers delivering LNER and BrightBike while sustaining crash-free delivery above 99.9%.
- Added Stripe tokenization to LNER, cutting checkout below eight seconds and trip-planning latency by 35%.
02/2021 — 02/2024
iOS Engineer
Iomob · B2B Mobility-as-a-Service Platform
Barcelona, Spain · Remote
- Built the mobility SDK used in Ford and Renfe integrations, reducing integration time from weeks to under two days.
- Normalized data from more than 10 providers and raised core SDK test coverage above 90%.
About
Senior judgment across more than one stack.
Senior software engineer with 5+ years shipping production software and leading engineering teams. I build across iOS, web, and backend systems, with a current focus on reliable AI applications and the evaluation systems that make them trustworthy.
B.S. Computer Science · University of Debrecen2017 — 2020Graduated first in cohort · Fully funded scholarshipDebrecen, Hungary
AI applications & backend
- Python
- FastAPI
- Pydantic
- Structured outputs
- RAG
- PostgreSQL
- pgvector
- AWS
iOS & Apple platforms
- Swift
- SwiftUI
- UIKit
- Swift Concurrency
- EventKit
- WatchConnectivity
- AVKit
- Live Activities
Reliability, evaluation & delivery
- pytest
- XCTest
- CI/CD
- GitHub Actions
- Prompt A/B tests
- Recall@k & MRR
- Latency & cost tracking
- Production observability
Roles and freelance projects
Need an engineer to strengthen your team or move a product forward?
I’m open to senior iOS and AI application engineering roles, as well as selected freelance projects. Based in Egypt and available for remote work or relocation, I’d be glad to hear what you’re building.