
Paul Vasile
Verified Expert in Engineering
Mobile Developer
Bucharest, Romania
Toptal member since October 17, 2022
Paul is a senior mobile and full-stack developer with a strong background in cybersecurity. With years of experience in the industry, he is proficient in developing and implementing secure systems for mobile and web applications. In addition to his technical skills, he is known for his strong problem-solving abilities and effective communication with team members and clients. Overall, Paul is a valuable asset to any project and is dedicated to delivering high-quality work.
Portfolio
Experience
- iOS - 6 years
- Software Architecture - 6 years
- APIs - 6 years
- CI/CD Pipelines - 6 years
- Web App Development - 5 years
- Swift - 5 years
- Mobile Development - 5 years
- SwiftUI - 4 years
Availability
Preferred Environment
Slack, Jira, Git, Zoom, Webex, Teams, Confluence, Bitbucket, Azure DevOps, Amazon Web Services (AWS)
The most amazing...
...system I've created is a highly scalable app that is used to test the security of all the cash registers currently sold in the Romanian market.
Work Experience
Mobile and Back-end Lead Developer
LCI Traders & Developers LLP
- Created the MVP for the business based on existing designs and the product idea.
- Contributed to shaping the business model and feature prioritization.
- Delivered the mobile product and the back-end infrastructure in time for the scheduled release.
- Assisted with user acquisition, retention, and feedback collection.
Senior Researcher and Head of Cybersecurity
National Institute for Research and Development in Informatics
- Mentored junior team members, helping them to develop their skills and advance their careers in cybersecurity research.
- Created and maintained detailed documentation of all research projects, providing clear and concise reports for management and stakeholders.
- Led the research team in conducting comprehensive security audits of most of our organization's systems, reducing cyber threats.
- Negotiated a partnership with a leading cybersecurity firm, resulting in access to cutting-edge tools and resources for the team.
- Implemented a new method for analyzing and prioritizing potential vulnerabilities, resulting in a 50% increase in efficiency.
Principal iOS Engineer
Property Finder FZ LLC
- Contributed to and implemented user-facing components following designs provided in Figma.
- Improved app performance by following user sessions in Instabug and other tracking tools.
- Participated in the code review process for peers and provided code improvement suggestions.
- Contributed towards increasing the code coverage by adding unit tests to the codebase.
- Improved security by implementing an SSL pinning system for the mobile app with remote configuration.
Mobile Developer
Live EQ LLC
- Adjusted the existing app to the new business requirements by integrating new features.
- Tracked and fixed issues using reporting tools and profilers.
- Optimized loading times by looking into old code and refactored it to improve performance.
Full-stack React/Swift Developer
SINES, Inc
- Developed and actively maintained the whole infrastructure, app feature cycle, and payments system.
- Improved trial conversion rate by integrating a streamlined sign-up experience.
- Improved user base by integrating SSO solutions (Apple, Google) across the ecosystem (iOS app, web app).
Full-stack Developer (via Toptal)
Terra-bate LLC
- Developed a mobile app that served as a marketplace for eco-friendly products.
- Worked on creating the interface layer between the app, Stripe, and Plaid. This facilitated a cashback payment feature for the users.
- Oversaw the design process, architecture, and implementation of the app.
Point of Sales Expert
fiskaltrust consulting gmbh
- Developed features that helped the client adapt to the Spanish and Italian markets.
- Researched, planned, and implemented the transition from the first-generation hardware security module to the second-generation one.
- Planned and implemented the cash register receipt printing engine for the Italian market.
- Fixed issues that were present in the code repository and configured automated testing in the CI/CD pipeline.
Mobile Developer
Omnis Inc.
- Delivered the MVP that helped the client obtain financing and proceed to the next step for his startup.
- Defined specifications and project requirements, designed the user experience and user interface, and refined them by constantly iterating with the client.
- Oversaw and managed the other developers by reviewing pull requests, mentoring a junior developer, and leading status meetings.
Freelance Software Engineer
Beyond Wealthtech Limited
- Developed a clean and easy-to-use UI to facilitate app usage.
- Integrated new UI components with existing modules and fine-tuned the performance.
- Added validation rules for user input to filter out unwanted outputs from the software.
Experience
Mobile App for a Fintech Startup
Mobile App for Offline Chatting
https://apps.apple.com/ro/app/offchat/id6446938850A Civil Services Application for Government Authorities
http://www.e-timis.roE-learning Platform for an Educational Center
Web Application for Managing Activity in a Vet Clinic
Integrated Software | Next-generation Cash Registers
Mobile Wallet for Digital Identity
Stock Market Automation Tool
Education
Master's Degree in Software Engineering
University of Bucharest - Bucharest, Romania
Bachelor's Degree in Computer Science
University of Bucharest - Bucharest, Romania
Certifications
Certified Ethical Hacker
EC-Council
Cambridge Advanced English
University of Cambridge
Skills
Libraries/APIs
Node.js, React, Windows Forms (WinForms), PayPal API, SignalR, Stripe, REST APIs
Tools
C#.NET WinForms, Confluence, Bitbucket, Stripe Checkout, Terraform, Fastly
Languages
JavaScript, SQL, Python, HTML5, TypeScript, C#, Swift, Go, XML
Frameworks
React Native, .NET, SwiftUI, Core Data, UIKit, MapKit, Combine, WidgetKit, EventKit, CloudKit, NestJS, Redux, iOS SDK, Express.js
Paradigms
Penetration Testing, Mobile Development, Azure DevOps, Microservices, Search Engine Optimization (SEO), Testing, DevOps
Platforms
iOS, Docker, Amazon Web Services (AWS), Android, Azure, Shopify, WordPress, Windows, Firebase, Bluetooth Low Energy (LE), DigitalOcean
Storage
PostgreSQL, Microsoft SQL Server, MySQL
Other
Software Architecture, APIs, Web App Development, Full-stack, Mobile Apps, Front-end, Web Development, Mobile Web, Responsive UI, Architecture, Networks, Web Security, Point of Sale, POS, CI/CD Pipelines, Full-stack Development, Secure Storage, WebSockets, Public-key Cryptography, User Interface (UI), User Experience (UX), Integration, Google Cloud Functions, Stripe Payments, Mobile UI, Mobile UX, Bluetooth, WiFi, WiFi Direct, Async/Await, Google Tag Manager, Version Control, UI Testing, Multithreading, SDKs
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