
Pantheon Sol
Level 2
Best Mobile App Development Services
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Work experience
Software Senior Developer
United Solutions âą Full-time
May 2021 - Dec 2023 âą 2 yrs 7 mos
As a Senior App Developer at United Solutions, I led the design, development, and deployment of scalable mobile applications for both Android and iOS platforms. I played a key role in transforming client ideas into fully functional, high-performance apps while mentoring junior developers and collaborating closely with UI/UX designers, backend engineers, and project managers. Key Responsibilities: Led end-to-end mobile app development using Flutter and native technologies. Architected scalable app structures and optimized performance for high-traffic applications. Integrated RESTful APIs, third-party services, payment gateways, and cloud solutions. Supervised code reviews, maintained clean architecture principles, and enforced best coding practices. Coordinated directly with clients to gather requirements and deliver solutions aligned with business goals. Managed app publishing processes on Google Play Store and Apple App Store. Implemented CI/CD pipelines to streamline deployment cycles. Achievements: 1. Successfully delivered 12+ mobile applications across industries including e-commerce, fintech, booking, and social networking. 2. Reduced app crash rates by 40% through performance optimization and structured debugging. 3. Improved app loading speed by 30% by refactoring legacy code and implementing efficient state management. 4. Led a team of 5 developers, increasing overall project delivery speed by 25%. 5. Developed an AI-integrated booking system that increased client user engagement by 60%. 6.Achieved 4.5+ average app ratings on both app stores through improved UX and stability. 7. Helped the company increase mobile development revenue by contributing to enterprise-level client projects.
204 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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hummnfts
Repeat Client

Australia
Without question the worst freelancer experience I have ever had. The project was originally estimated at 8 weeks and ultimately dragged on for more than 6 months. Throughout the engagement there were constant delays, missed deadlines, broken commitments, and repeated assurances that work would be completed...
Seller's Response
hummnfts
Repeat Client

Australia
THE WORST EXPERIENCE I HAVE EVER HAD ON FIVERR! Do not use, black mailed me for more money, lied multiple times and got caught, said the project would take 8 weeks but actually took 6 months wish I could give 0 stars
colin_kaufmann

Switzerland
The work was great, the quality was excellent, and everything was completed quickly. I had to ask for a couple of small corrections, but they addressed them without any issues. Overall, I'm very satisfied.
rmanuel1
Repeat Client

United States
Worked with my budget and delivered on everything I asked
leesa_lee01

United Kingdom
Pantheon did a very good job on my Android app. Communication was consistent, and they kept me updated during the whole process. Delivery was on time, and support after delivery was also helpful. I am satisfied with their work and would gladly work with this team again.
