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Alex Vasiliu
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Bringing ideas to life through code

iOS Solution Architect focused on scalable mobile systems, robust app architecture, and elegant user experiences across Apple platforms.

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About Me

I have a wealth of experience working with clients from all around the world. The work I provide is of the highest quality, fully responsive, and tested in a wide range of devices. I take great care to ensure each project is well-architected, well-documented and easily maintainable so you can enhance an app as your company grows. I maintain a high code quality standard. Writing code that is documented and easy to read means it can be maintained and scaled in the future and allows co-workers to quickly work with it.

I've been developing natively in Swift & SwiftUI for almost 10 years. I believe that native apps give the best results and have the least problems when it comes to adopting new iOS features, iOS versions or when new devices are released. I also have direct experience with Apple's policies, device capabilities and account management procedures alongside with a good understanding of what it takes to maintain apps over the long term.

Objective-C
UIKit
Swift
SwiftUI
CocoaPods
SPM
Xcode Cloud
About me avatar

Services I Provide

Every engagement is built around outcomes that matter — scalable architecture, reliable delivery, and code that stands the test of time.

Architecture & Scalability

Systems that grow with your business — modular boundaries, clean patterns, and code your team can maintain long after handoff.

  • MVVM / Coordinator
  • Modularization
  • Documentation & Maintenance

Delivery & Product Execution

End-to-end feature ownership — from API integration to UI polish and App Store release, with stakeholders aligned at every step.

  • Incremental Delivery
  • Release Discipline
  • Stakeholder Communication

Quality & Testing

Fewer bugs, fewer surprises. Automated testing, strict code standards, and monitoring that catches issues before users do.

  • Unit + Snapshot Tests
  • Lint / Format
  • Code Quality Monitoring

Performance & Reliability

Smooth scrolling, fast launches, zero crashes. Profiling, optimization, and hardening for reliable performance across all devices.

  • Profiling
  • Crash Triage
  • Regression Prevention

Accessibility & UX

Apps that work for everyone — usable, inclusive, and compliant with Apple's accessibility standards from day one.

  • VoiceOver
  • Dynamic Type
  • Dark Mode

Legacy & Migration

Incremental modernization from Objective-C to Swift and SwiftUI — no full rewrites, no disrupted release cycles, just steady progress toward a modern codebase.

  • Obj-C to Swift Migration
  • UIKit to SwiftUI
  • Incremental Adoption

Projects

A selection of products and interfaces I helped build and ship, from early-stage prototypes through full App Store releases and long-term platform support.

Adblock screenshot 1
Casa Mea screenshot 1
Tubidy screenshot 1
AllDelicious & SoDelicious screenshot 1
Connect Plus screenshot 1
GameForm screenshot 1
Reading Journey screenshot 1
Utilio screenshot 1
John Lewis screenshot 1
myAsirom screenshot 1
Smart Mobile screenshot 1
Worklin screenshot 1
eGA screenshot 1
Mobility+ screenshot 1

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Reviews

Feedback from people I've worked with across different projects and teams.

5 star reviews

“I have the privilege of working closely with Alex, and for me he is much more than just a teammate, he is a true mentor and role model. Even though this was never something he was officially assigned, I naturally learn an incredible amount of things from him every day. From countless code reviews that are always detailed, demanding, yet immensely valuable, to the way he designs the architecture of our application with scalability and long-term vision in mind. Alex constantly shapes my growth as an iOS developer. He is the kind of professional I aspire to become in the future. Alex consistently proves himself to be an exceptional iOS Software Architect and an invaluable teammate.”

Alexandru, iOS Developer, Raiffeisen Bank

“Alex is a talented engineer. I've had the distinct pleasure of working alongside him in the John Lewis apps team over the past few months. During this time, Alex flexed his deep technical knowledge and forward-thinking approach, driving significant improvements to various complex areas in our codebases. He's always keen to learn, and even keener to share learnings with others. He truly champions quality, and I can't recommend him enough.”

Lewis, iOS Engineer, John Lewis & Partners

“I've worked with Alex for the last 6 months in the apps team at John Lewis. Alex is a joy to work with and an incredibly valuable member of the product team. Firstly his attitude is very pragmatic and optimistic (very glass half full!) and has an infectious positive energy. He's also extremely dedicated and has delivered high-quality changes for our customers and the business. Alex strikes the perfect balance of being passionate about engineering and having super strong communication skills to bring people around him on the journey. I'd highly recommend Alex if you're after a friendly, warm, flexible, passionate, dedicated and skilled engineer.”

Rhiannon, Online Orchestration Lead, John Lewis & Partners

“Working with Alexandru on a multi-platform project was a pleasant experience. His extensive iOS knowledge streamlined our QA processes, making our tasks more manageable and efficient. Always available to lend a helping hand, he provided valuable insights that notably improved our project's quality. His attention to detail was remarkable, ensuring that even the minutest of issues didn't slip past unnoticed. His contributions went beyond just his role, fostering a nurturing and productive work environment. In essence, Alexandru combined his deep technical knowledge, commitment to quality, and collaborative nature to significantly enhance our team's performance. His dedication is not just commendable but also inspiring for any professional in the field.”

Catalin, QA Automation Engineer, Thales

“Alexandru is one of the most dedicated professionals I've worked with and he goes out of his way when you ask for some help or guidance. His work ethics are immaculate, the deliveries were always very well executed, on time and flawless. He is also very responsible and detail-oriented, qualities that make him stand out. The collaboration was very smooth and his assistance definitely made a huge impact.”

Robert, Founder, Agendum

“Worked with Alex for roughly one year, developing a complete product for our stakeholder in US. His coding skills and the level of quality delivered were great. However, I was truly amazed by the involvement shown in the project overall. He has always been very proactive, bringing in his iOS expertise in all areas of the project, including product and design.”

Alex, Product Manager, Neurony

“Alexandru joined the GameForm team and made an immediate impact! His responsibilities include software architecture, iOS game development and assisting with optimizing the overall iOS platform. His work ethic and attention to detail are second to none. In addition, he is a proactive team member who excels in a fast-paced environment. I look forward to continuing working with Alexandru and having him as a valuable member of the GameForm team.”

Frank, Director, Expereo

“Alexandru is one of the most talented developers and architects that I've ever worked with. He has incredible problem-solving skills and doesn't let anything slip through the cracks. He goes the extra mile when managing a project. Sometimes people just want a "Yes" person on their team. Alexandru is going to be honest with his feedback at every turn. He analyzes every possible permutation of a situation and identifies weaknesses and blind spots so they can be corrected before they become a problem. He is truly one of the most talented people I've ever worked with.”

Paul, Sr. SDR Manager, Mapbox

“I have the privilege of working closely with Alex, and for me he is much more than just a teammate, he is a true mentor and role model. Even though this was never something he was officially assigned, I naturally learn an incredible amount of things from him every day. From countless code reviews that are always detailed, demanding, yet immensely valuable, to the way he designs the architecture of our application with scalability and long-term vision in mind. Alex constantly shapes my growth as an iOS developer. He is the kind of professional I aspire to become in the future. Alex consistently proves himself to be an exceptional iOS Software Architect and an invaluable teammate.”

Alexandru, iOS Developer, Raiffeisen Bank

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Ready to bring your next project to life?

Let's collaborate and build something amazing together. I'm always open to discussing new projects and opportunities.

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© 2026 Alex Vasiliu

Your vision, engineered with care.

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