Dear Hiring Team, I am an experienced iOS Engineer with over 4 years of professional experience, and I am excited to apply for this short-term iOS development contract. I have a proven track record of delivering high-quality applications independently, from end-to-end design and implementation to testing, debugging, and documentation. I am highly proficient in Swift and Xcode, and I am well-versed in Apple’s Human Interface Guidelines, ensuring that applications are both user-friendly and performant. My experience working with remote teams and coordinating with backend and web engineers enables me to quickly clarify requirements and deliver reliable results within tight timeframes. I am confident in my ability to complete your project efficiently and to specification, and I am available to start immediately. Sincerely, Volodymyr Khvaliuk

Volodymyr Khvaliuk

Dear Hiring Team, I am an experienced iOS Engineer with over 4 years of professional experience, and I am excited to apply for this short-term iOS development contract. I have a proven track record of delivering high-quality applications independently, from end-to-end design and implementation to testing, debugging, and documentation. I am highly proficient in Swift and Xcode, and I am well-versed in Apple’s Human Interface Guidelines, ensuring that applications are both user-friendly and performant. My experience working with remote teams and coordinating with backend and web engineers enables me to quickly clarify requirements and deliver reliable results within tight timeframes. I am confident in my ability to complete your project efficiently and to specification, and I am available to start immediately. Sincerely, Volodymyr Khvaliuk

Available to hire

Dear Hiring Team,
I am an experienced iOS Engineer with over 4 years of professional experience, and I am excited to apply for this short-term iOS development contract. I have a proven track record of delivering high-quality applications independently, from end-to-end design and implementation to testing, debugging, and documentation.
I am highly proficient in Swift and Xcode, and I am well-versed in Apple’s Human Interface Guidelines, ensuring that applications are both user-friendly and performant. My experience working with remote teams and coordinating with backend and web engineers enables me to quickly clarify requirements and deliver reliable results within tight timeframes.
I am confident in my ability to complete your project efficiently and to specification, and I am available to start immediately.
Sincerely,
Volodymyr Khvaliuk

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Experience Level

Expert
Expert

Language

German
Advanced
English
Advanced
Ukrainian
Fluent
Russian
Fluent

Work Experience

iOS Developer at BLNG AI
April 1, 2025 - Present
Implemented an agentic chat experience enabling users to generate multiple jewelry designs in diverse styles, using canvas images as contextual input via WebSocket and REST APIs. Developed async networking pipelines handling over a thousand concurrent AI generation requests per day using URLSession, Combine, and async/await, enabling real-time progress updates. Built 3 rendering modules leveraging Metal/MSL for high-performance 2D processing and RealityKit for interactive 3D previews, sustaining smooth interaction across multi-layer 4K documents
iOS Developer at Developer Legacy
August 1, 2024 - April 1, 2025
Released 6 apps, generating over $50K monthly revenue and 35K+ active users worldwide. Improved release cycle efficiency by 50% via CI/CD automation, reducing delivery from 2 months to 1 month. Collaborated with cross-functional teams to design and implement features, reducing crash rates by 40% and increasing user retention
iOS Developer at Exitek
December 1, 2021 - July 1, 2024
Engaged 2+ million users worldwide by developing the BeautyUp app from scratch, gaining a 4.6-star rating. Delivered 99% error-free sessions by writing UI, unit, and performance tests, achieving test coverage of over 70%. Achieved a 9% conversion rate by implementing seamless in-app purchase flows and subscription management, utilizing RevenueCat and StoreKit. Reduced image matting time by 68% by integrating CoreML models and developing a custom framework in C++ using Objective-C bridging. Developed 30+ Metal shaders and filters to enhance rendering performance and optimize graphics processing

Education

Bachelor of System Analysis at National University of Radio Electronics
September 1, 2020 - June 1, 2024
Software Development Course at STEP IT Academy
September 1, 2017 - June 1, 2020

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Gaming, Media & Entertainment, Professional Services