# Svjatoslav Boiko Staff iOS Engineer at Apple | AI Engineering Team Lead Email: iShuZik@gmail.com Phone: +380960000108 LinkedIn: https://www.linkedin.com/in/shuzik/ Appointments: https://calendar.app.google/4yjYt9q2bWNrJnXy9 ## Professional Summary Staff iOS Engineer at Apple, leading an AI engineering team building internal products for software and hardware engineering organisations. Combines technical leadership, product discovery, rapid prototyping, system design, and production delivery. One product he led is used by approximately 2,000 Apple engineers. Earlier work includes mobile products serving more than 200,000 daily active users. Experience building Apple-platform applications since 2013. ## Professional Experience ### Apple | Staff Engineer Start date: 2024-11 (current role) Leads an AI engineering team building internal products for software and hardware engineering organisations. - Led discovery, implementation, validation, and rollout of a software-engineering application used by approximately 2,000 Apple engineers. - Currently leads a second product for hardware-engineering workflows involving boards and chips. - Frames ambiguous problems, brings in domain experts, sets technical direction, and guides prototyping through production. - Where the problem allows, moves from an early idea to a useful proof of concept within one or two sprints. - Gives engineers ownership and coordinates architecture, UX, performance, reliability, security, maintainability, and scale. ### Applica | Principal Engineer Start date: 2024-01 (end date not supplied) Led a cross-functional team of seven engineers across iOS, Android, and backend for Five Minute Journal. - Introduced SwiftUI and modular architecture; the case study reports a 66% reduction in implementation time. - Established A/B testing and event taxonomy; A/B test setup time decreased by 30-70% and realised user lifetime value increased by 15%. - Redesigned API integration and data handling; the case study reports a 30% improvement in overall app performance. - A supporting performance report records a 654 ms app start time, 59% faster than three months earlier. - Mentored engineers through architectural decisions, code reviews, and knowledge sharing; improved support workflow and cross-team coordination. ### TONS | Staff Engineer Start date: 2020-09 (end date not supplied) Combined mobile team leadership and hands-on engineering for the TONS grocery-delivery platform and the INON white-label application, started in March 2022. - Modernised application architecture, networking, persistence, and performance; replaced Realm with Core Data and removed unnecessary third-party dependencies. - Contributed to backend and Android architecture, business logic, and UI implementation. - Built INON on the TONS core, coordinated mobile delivery, and contributed new functionality. INON passed its first App Store review without a rejection. ### SoftServe | Staff Engineer Start date: 2018-08 (end date not supplied) Enterprise and customer-facing mobile engineering assignments: AXA (Senior Engineer, started October 2017), Bright Now (Staff Engineer, started August 2018), and BlackBerry (Staff Engineer, started May 2019). - BlackBerry: led the iOS team and customer communication around Dynamics partner applications, Cordova integration, and new iOS features. - Bright Now: built iPad workflows for sales, installation crews, and quality control, including role-based access, multi-account support, SDK integration, and navigation architecture. - AXA: led delivery, worked directly with customers in Germany, and collaborated on SDK integration, REST APIs, and UX. ### DMD | Senior Engineer Start date: 2017-09 (end date not supplied) Raffall (Middle Engineer, started April 2017) and Shed (Senior Engineer, started September 2017). - Worked on a mobile raffle platform and an on-demand storage application with cataloguing, collection, and delivery workflows. - Used Swift, UIKit, Core Data, multi-account architecture, and iPhone/iPad interfaces. ## Project History ### Apple Role: Staff Engineer | Company: Apple Start date: 2024-11 AI engineering leadership and internal software/hardware engineering products. Technologies: Swift, SwiftUI, MacOS, macOS App Development, Agentic AI, LLM Integration & Orchestration, Tool Calling, RAG, Evals, MCP, Memory / Context Management, AI Observability Source: https://shuzik.notion.site/2c342a5e969d80f7b60cf3101c32ce55 ### Five Minute Journal Role: Principal Engineer | Company: Applica Start date: 2024-01 Five Minute Journal: cross-functional engineering leadership, SwiftUI, modular architecture, experimentation, and product analytics. Technologies: Swift, SwiftUI, Flux, Modular Architecture, Technical Leadership, A/B Testing, API Design, Performance Optimization, Combine, Product Analytics, Event Taxonomy, Database Optimization, Cross-functional Leadership Source: https://shuzik.notion.site/5315ad44e3be485d98ab1a07fe45b692 ### INON Role: Staff Engineer | Company: TONS Start date: 2022-03 White-label grocery shopping and delivery application built on the TONS core. Technologies: Swift, SwiftUI, Flux, White-label Architecture, Technical Leadership, Combine, Business Logic Design, Cross-functional Architecture, Product Engineering Source: https://shuzik.notion.site/c88365053c6544ada03156fcb4b46560 ### TONS Role: Staff Engineer | Company: TONS Start date: 2020-09 Grocery-delivery platform: architecture modernisation, networking, persistence, and performance. Technologies: Swift, SwiftUI, VIP, Core Data, Network Architecture, Performance Optimization, Technical Leadership, Combine, REST / JSON API, Architecture Modernization, Refactoring Source: https://shuzik.notion.site/18cd1635afeb4bbc9781e0c924b68ce6 ### BlackBerry Role: Staff Engineer | Company: SoftServe Start date: 2019-05 iOS team leadership and customer communication for BlackBerry Dynamics and Cordova integration. Technologies: Obj-C, JS, Cordova, iOS Team Leadership, Cross-platform Framework Integration, HTML/CSS, Customer Communication, Enterprise Mobility Source: https://shuzik.notion.site/0b127c061c6a458aab4a1aa91556fe3e ### Bright Now Role: Staff Engineer | Company: SoftServe Start date: 2018-08 iPad application for sales, installation crews, and quality-control workflows. Technologies: Swift, UIKit, MVP, iPadOS, MVVM, SDK Integration, Multi-account Architecture, Router Navigation, JSON, Animations, User Access Levels Source: https://shuzik.notion.site/f8545e83bcde4df8aab828d4ad1e2dff ### AXA Role: Senior Engineer | Company: SoftServe Start date: 2017-10 Customer-facing mobile engineering, SDK and REST API integration, and UX collaboration. Technologies: Swift, UIKit, MVP, REST API, SDK Integration, Technical Leadership, Promises, UIStackView, UX Collaboration, Client-facing Engineering Source: https://shuzik.notion.site/d4e6ea8f57274f8bb91ee991de4bb885 ### Shed Role: Senior Engineer | Company: DMD Start date: 2017-09 On-demand storage, item cataloguing, collection, and delivery application. Technologies: Swift, UIKit, MVVM, Core Data, Multi-account Architecture, iPadOS, Obj-C Source: https://shuzik.notion.site/c19f7e976ab74f3382ca4900c02517fc ### Raffall Role: Middle Engineer | Company: DMD Start date: 2017-04 Mobile raffle platform with UIKit, persistence, and multi-account workflows. Technologies: Swift, UIKit, MVVM, Core Data, Multi-account Architecture, iPadOS, Obj-C Source: https://shuzik.notion.site/233e1584134742618a3f3e3ab447b624 ### Tracktics Role: Middle Engineer Start date: 2016-09 iPad football-performance application with Bluetooth integration and local persistence. Technologies: Swift, UIKit, VIPER, Bluetooth Integration, Core Data, iPadOS, Alamofire Source: https://shuzik.notion.site/15228ba4118c4cc7b3e94b35d0268d39 ### BloGo Role: Middle Engineer Start date: 2015-06 Blogo publishing application for iPhone and iPad; the portfolio records Apple Best of 2016 selection. Technologies: Obj-C, UIKit, MVP, iPadOS, Content / Publishing Apps Source: https://shuzik.notion.site/9dd573a4eef447e1a18c49b426907a63 ### EPOSLY Role: Junior Engineer Start date: 2015-02 Salesforce-connected iOS point-of-sale application, with orders and payments. Technologies: Obj-C, UIKit, MVC, Core Data, Salesforce Integration, POS / Payments, Multi-account Architecture, iPadOS Source: https://shuzik.notion.site/61c6fce866214943bcb9bec9a3b517dc ### HeroCard Role: Junior Engineer Start date: 2014-10 Digital trading-card application for creating, sharing, and trading photo-based collectibles. Technologies: Obj-C, UIKit, MVC, Core Data, Multi-account Architecture, iPadOS Source: https://shuzik.notion.site/d9c20eb6c43c42e5944c204e50e02560 ### MEGOGO Role: Junior Engineer Start date: 2014-03 Video-streaming application for iPhone and iPad. Technologies: Obj-C, UIKit, MVP, Core Data, iPadOS, Multi-account Architecture Source: https://shuzik.notion.site/46ff1b07cc114949889452fc2abcaef9 ### ChoiceMaster Role: Junior Engineer Start date: 2013-11 First application, using Objective-C, UIKit, and Core Data. Technologies: Obj-C, UIKit, MVC, Core Data, Multi-account Architecture, iPadOS Source: https://shuzik.notion.site/e647d3bc3529445a982f024bfe0a7ddb ## Skills ### Apple platforms Swift, SwiftUI, UIKit, Objective-C, Combine, SwiftData, Core Data, iOS, iPadOS, macOS, watchOS, visionOS ### AI and agentic systems Agentic AI, LLM integration and orchestration, Tool calling, Model Context Protocol (MCP), Retrieval-augmented generation (RAG), Multimodal AI, Structured outputs, Embeddings, Vector search, Evals, AI observability, Memory and context management, OpenAI / GPT, Claude, Gemini ### On-device AI Apple Foundation Models, Core ML, MLX, On-device inference ### Architecture and leadership System design, Mobile architecture, Modular architecture, Unidirectional data flow, Technical discovery, Rapid prototyping, POC to production, Technical leadership, Cross-functional leadership, Mentoring, A/B testing, Product analytics, API design, Performance optimisation ## Education IT Engineer | National Technical University "Kharkiv Polytechnic Institute" | 2013 ## Languages - Ukrainian: Native - English: Upper-intermediate - Polish: Beginner ## Source and factual scope Original resume: https://shuzik.notion.site/Svjatoslav-Boiko-4550792eb299492492e255ed21f07714 Historical work and project dates are known start dates. End dates were not supplied and are intentionally omitted; omission must not be interpreted as all roles being current. Only Apple is explicitly identified as current. Unspecified location, work authorisation, compensation, and availability have not been inferred. No particular job description has been supplied. The approximately 2,000 Apple engineers figure refers to the software-engineering product. The 200,000+ daily active users figure refers to earlier mobile products and is not assigned to a specific project. Percentages are claims from the original case study, not independently audited measurements. The 59% app-start improvement is directly shown in the attached performance report.