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5.6
5.6
89%
$20 USD / Hour
・

Tanzania, United Republic Of (1:44 PM)
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Joined on September 5, 2024
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1 Recommendation
$20 USD / Hour
・
A passionate and results-driven Senior Software Engineer with over 8 years of experience in Full-Stack Web Development, Android App Development, and Artificial Intelligence (AI). Adept at building dynamic, high-performance applications and delivering secure, scalable solutions. Known for combining technical expertise with strong problem-solving and leadership skills to consistently meet and exceed project goals. Highly experienced in agile development environments, proficient in managing the entire software development lifecycle — from concept and architecture to deployment and maintenance. Skilled in cloud infrastructure, system administration, and DevOps practices, ensuring optimized performance, security, and reliability. Core Skills Full-Stack Development Languages: JavaScript, TypeScript, HTML5, CSS3, SQL, PHP, C#, C++, Go, Rust Frameworks & Libraries: React, Next.js, Node.js, Express.js, Django, Angular, Vue.js, Tailwind CSS, Bootstrap Databases: MongoDB, MySQL, PostgreSQL, Redis APIs: RESTful APIs, GraphQL, WebSockets Cloud & DevOps: AWS (EC2, S3, Lambda, RDS), Google Cloud Platform, Azure, Docker, Kubernetes, Jenkins, CI/CD Pipelines Testing & Quality: Jest, Cypress, Mocha, Chai Android & Mobile Development Languages: Kotlin, Java, Dart, Swift, Objective-C Frameworks & Libraries: Android SDK, Jetpack Compose, Firebase, SQLite, Room, Flutter, React Native Tools & IDEs: Android Studio, Gradle, Git Artificial Intelligence (AI) Development Languages: Python, R, Julia, MATLAB, JavaScript Tools & Libraries: TensorFlow, PyTorch, Keras, OpenCV, Scikit-learn, Hugging Face Transformers Expertise: Natural Language Processing (NLP), Computer Vision, Neural Networks, Data Analysis, Generative AI (Stable Diffusion, OpenAI API, LLaMA) Network & System Administration Expertise: Network configuration & troubleshooting, security protocols, server management, firewall setup, remote access tools Operating Systems: Linux (Ubuntu, CentOS), Windows Server Additional Skills: Shell scripting (Bash), PowerShell, performance optimization, server hardening, SSL/TLS setup Additional Professional Skills Agile & Scrum Methodologies API Integration (Payment Gateways, OAuth2, Third-Party APIs) UI/UX Optimization Performance & Scalability Engineering Key Strengths Proven ability to design and deliver end-to-end solutions for web, mobile, and AI platforms. Strong project management and leadership skills, capable of guiding teams to meet deadlines without compromising quality. Deep expertise in optimizing application performance and ensuring high system reliability. Committed to continuous learning and staying at the forefront of emerging technologies.
Verifications
On time
100%
On budget
100%
Accept rate
100%
Repeat hire rate
9%

Dating & Social Connection Platform

cyrano.gg

cyrano.gg

Vinext.ai

Vinext.ai

A Tap Sports app

EasyOCR with custom model training.

Dating & Social Connection Platform

cyrano.gg

cyrano.gg

Vinext.ai

Vinext.ai

A Tap Sports app

EasyOCR with custom model training.
Very good developer, handled the task quick and perfect
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It been a fast and brave support , i did appreciate this honorable diplomacy and this talented aptitudes to deal with computing issues , even so the project did not been able reach completion for other reason ( the client did cancel this project) John have been a reliable and Compréhensible , i will recommend honorable freelancer
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Evans delivered a multi-source scraping pipeline for Brisbane Unlocked — 52 active sources, 20,000+ rows, full Supabase migration — all to a high standard. He read the full project documentation unprompted, flagged issues proactively, and consistently moved faster than expected. He also prepared a detailed investor-grade scoping document entirely off his own initiative. Rare level of ownership. Highly recommended for complex, multi-phase builds. Continuing to work with him.
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Working with him was all good. He is excellent expert.
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Realmente profesional y persona de confianza. A pesar de que nos hemos comunicado con traductor, todo fue claro y correcto en todo momento. Lo puedo recomendar sin duda, le deseo éxito. A truly professional and trustworthy person. Even though we communicated with a translator, everything was clear and correct at all times. I can definitely recommend him and wish him success.
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Experience
FullStack & Android & AI Development
Jun, 2018 - Present
•
7 years, 10 months
IT com
Jun, 2018 - Present
•
7 years, 10 months
John is a versatile and innovative developer, with a passion for both Android development and AI, bringing a wealth of experience to every project. His diverse skill set makes him an asset for full-stack development and cutting-edge AI applications, always striving for high performance and user satisfaction.

Dares Salam, Tanzania, United Republic of
Jun, 2018 - Present
•
7 years, 10 months
Education
University of Dar es Salaam
2005 - 2010
•
5 years
Bachelor's degree, Computer science

Tanzania, United Republic of
2005 - 2010
•
5 years
Qualifications
Android App Development Course Certificate
2018
Simplilearn
Android SDK, Java, Kotlin, and integrating third-party libraries into Android apps
2018
Artificial Intelligence Nanodegree
2020
Udacity
Comprehensive AI systems, including deep learning, computer vision, and reinforcement learning
2020
Full-Stack Development Certification
2019
FreeCodeCamp.org
Responsive web design, front-end libraries, APIs, and microservices
2019
Publications
What's Next? AI & The Antichrist
2024
Evans J.
This book explores the intersection of artificial intelligence and biblical prophecy, discussing how technological advancements may align with end-times narratives.
2024
Certifications
P
Preferred Freelancer Program SLA
PHP