Samuel Williams Quaynor

Samuel Williams Quaynor — Mobile Developer

Expertise in Mobile Apps, Flutter.

Last verified on June 22, 2024

Core Skills

Facebook Auth

4 yr.

Android APIs

4 yr.

iOS

4 yr.

Identity Server

Firebase Realtime Database

Bio Summary

Software engineer with 4+ years of experience specializing in mobile app development, including UI/UX design, with expertise in Flutter and integrations with Firebase. Highlights include leading the development of mobile platforms for companies like Boostmate Inc and PDA Funds, improving app performance, and maintaining high coding standards. Proven track record in applying Agile methodologies, performing unit and E2E testing, and employing tools such as Git/GitHub for project management. Holds a computer science degree from Kwame Nkrumah University of Science and Technology, emphasizing this candidate's strong theoretical and practical foundation in software engineering.

Technical Skills

Android Libraries and Tools	Android APIs
.NET Platform	Identity Server
Mobile Frameworks and Libraries	OneSignal
Databases & Management Systems / ORM	Firebase Realtime Database
UI/UX/Wireframing	Adobe XD, Figma
Methodologies, Paradigms and Patterns	Agile, Scrum, TDD
SDK / API and Integrations	Android APIs, Facebook Auth, GraphQL
QA, Test Automation, Security	Code Review, Unit Testing
Project Management & Administration	Communication Skills, Design Thinking
Soft Skills	Design Thinking
Version Control	Github Actions
Operating Systems	iOS
Collaboration, Task & Issue Tracking	Jira
BlockChain and Decentralized Software	NFT
Other Technical Skills	Team Collaboration

Work Experience

Lead Mobile Developer, Investment Mobile Application

Duration: 2021/10 – 2023/02
Summary: Spearheaded the development of a sophisticated mobile application enabling users to invest in mutual funds and stocks.
Responsibilities: Oversaw app development cycle, defined requirements, steered feature prioritization, and delivered within deadlines. Monitored performance and iteratively improved app based on feedback while mentoring junior developers.
Technologies: Flutter, Mobile App Development, Project Management

Mobile Developer, Cultural Experiences App

Duration: 2021/01 – 2022/12
Summary: Contributed to the development of a mobile application connecting users to diverse cultural experiences across Africa.
Responsibilities: Integrated GraphQL API, used Firebase for authentication and storage, implemented OneSignal for notifications, adopted TDD, and collaborated for high-quality UX.
Technologies: Flutter, GraphQL API, Firebase, OneSignal, TDD

Mobile Developer, Payment and Donation Collection Apps

Duration: 2022/11 – 2023/09
Summary: Developed a cross-platform collection application for tellers to collect payments, and an event collection application to process donations.
Responsibilities: Developed cross-platform applications to improve payment collection efficiency and optimize donation processes, conducted multi-device testing and debugging.
Technologies: Flutter, Cross-platform Development, Testing, Debugging

Mobile Developer, Blockchain Mobile Applications

Duration: 2023/07 – 2023/12
Summary: Drove innovation and execution of mobile applications leveraging blockchain technology for enhanced security and performance.
Responsibilities: Led the development of blockchain-based mobile applications focused on performance optimization, scalability, and security.
Technologies: Blockchain, Mobile App Development, Performance Optimization

Mobile Lead, Marketing Platform App Enhancement

Duration: 2024/04 – present
Summary: Instrumental in elevating the performance and success of a marketing platform app through architectural enhancements and best coding practices.
Responsibilities: Revamped app architecture, ensured high quality and efficient updates deployment, and mentored interns in Flutter development.
Technologies: Flutter, Architectural Improvements, Coding Standards, Mentoring

Education

Kwame Nkrumah University of Science And Technology
Undergraduate
2018 – 2022

How to hire with Upstaff

1

Talk to Our Talent Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.

2

Meet Carefully Matched Talents

Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person.

3

Validate Your Choice

Bring new talent on board with a trial period to confirm you hire the right one. There are no termination fees or hidden costs.

Why Upstaff

Upstaff is a technology partner with expertise in AI, Web3, Software, and Data. We help businesses gain competitive edge by optimizing existing systems and utilizing modern technology to fuel business growth.

Real-time project team launch

<24h

Interview First Engineers

Upstaff's network enables clients to access specialists within hours & days, streamlining the hiring process to 24-48 hours, start ASAP.

x10

Faster Talent Acquisition

Upstaff's network & platform enables clients to scale up and down blazing fast. Every hire typically is 10x faster comparing to regular recruitement workflow.

Vetted and Trusted Engineers

100%

Security And Vetting-First

AI tools and expert human reviewers in the vetting process is combined with track record & historically collected feedbacks from clients and teammates.

~50h

Save Time For Deep Vetting

In average, we save over 50 hours of client team to interview candidates for each job position. We are fueled by a passion for tech expertise, drawn from our deep understanding of the industry.

Flexible Engagement Models

Custom Engagement Models

Flexible staffing solutions, accommodating both short-term projects and longer-term engagements, full-time & part-time

Unique Talent Ecosystem

Candidate Staffing Platform stores data about past and present candidates, enables fast work and scalability, providing clients with valuable insights into their talent pipeline.

Transparent

$0

No Hidden Costs

Price quoted is the total price to you. No hidden or unexpected cost for for candidate placement.

x1

One Consolidated Invoice

No matter how many engineers you employ, there is only one monthly consolidated invoice.

Ready to hire Samuel Williams Quaynor
or someone with similar Skills?

Book a call with Samuel Williams Quaynor

Start Hiring