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Evans John M.

@SmartCodeDev

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5.0
34

5.6

5.6

89%

Web & Mobile & AI Developer & Devops

$20 USD / Hour

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Tanzania, United Republic Of (1:44 PM)

Joined on September 5, 2024

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%

Portfolio

Portfolio

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5.0 · 34 Reviews
Reviews
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Bina L.

5.0

$300 USD

4 days ago

Android Face Verification App

Very good developer, handled the task quick and perfect

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Nathalie D.

5.0

$100 USD

11 days ago

creating chatbots and automating workflows within D365

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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Stacey P.

5.0

$1,676 AUD

12 days ago

Python Data Engineering for Brisbane Unlocked

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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D

Former Client (inactive)

5.0

$50 USD

20 days ago

Need AI expert. (archived)

Working with him was all good. He is excellent expert.

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David M.

5.0

€100 EUR

21 days ago

PDF a MP3 voz muy natural

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.

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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

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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 - Level 1

PHP

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