Talent badge filter
Skills filter
Select talent location
Select talent time zones
$120/hr
$0 earned
Start of list.
End of list.
Professional Summary
Detail-oriented Computer Programming Freelancer and Document Controller with a successful
track record. Proficient in a variety of programming languages, I deliver innovative and clean
coding solutions that address complex challenges. Collaborative and proactive, I excel in
gathering client requirements and developing tailored software applications. As a Document
Controller, I ensure accurate, organized, and compliant document management through
meticulous oversight and the implementation of efficient processes. With strong analytical skills
and a commitment to precision, I contribute to project success while maintaining data integrity
and accessibility.
Professional Projects
Taalogram Communication Platform:
* A creation of mine, Taalogram is an innovative multilingual communication platform
designed to bridge language barriers and enhance global connections. The platform
$83.33/hr
$0 earned
Start of list.
End of list.
I'm a full stack developer with 18+ years of experience building scalable web applications and leading development teams. I specialize in helping businesses optimize their systems, scale for high traffic, and modernize their technology stack.
- Expert in Python (Django, FastAPI), JavaScript/Node.js, and SQL databases
- Proven track record scaling applications to handle thousands of transactions per minute
- Team leadership experience with 3-5 developer teams
- Specialized in short-term engagements (2-6 months) for maximum impact
- 5+ years remote work experience across Central European timezone
I focus on delivering results quickly while maintaining high code quality and security standards. Whether you need to optimize performance, build new features, or modernize legacy systems, I can help you achieve your goals efficiently.
United States
$85/hr
$0 earned
Start of list.
End of list.
I’m a software developer, with a long and broad experience in application development. My skills include:
o Object-oriented design and development in C++, including template meta-programming
o Java (especially native extension development), Python, Ruby, JavaScript, bash, PowerShell
o UI and SDK development on iOS, MacOS, Windows, UNIX
o Extensive experience in code analysis, debugging and optimization. Doggedly persistent with bugs
o Experience in interactive 3D in Direct3D and OpenGL
o Delivered product on desktop, mobile, consoles, smart TVs, prototype hardware
o Build management, including scriptable continuous integration
o Use of large-scale project collaboration tools - Atlassian suite and equivalents
o Source code control - Git, Mercurial, Perforce, Subversion, CVS
o Leadership through technical demonstration and effective communication
o Technical and non-technical documentation - effective written language skills
o Mentoring and explanation - interpersonal team support
$75/hr
100%
Job Success
$50K+ earned
Start of list.
End of list.
Level up your design project
A Product Designer with 9+ years of design experience. Passionate about aesthetics and the human mind, I use my skills in order to help people achieve their goals.
UI/UX & Product Design
The best-curated designs build long-lasting confidence and trust in your product and brand. That’s why I create cutting-edge design interfaces that are custom, engaging, and memorable.
Web & SaaS Design
I focus efforts on building results-driven development environments that are optimized, responsive, and scalable. This ensures your products will remain stable and relevant.
Mobile App Design
Native and cross-platform apps that are innovative, unique, & support end-user needs.
Digital Marketing Design
Custom-tailored marketing strategies that boost awareness, credibility, and revenue
Branding
Intelligent digital strategy and a pragmatic and thoughtful approach to solving business calls deliver a successful framework for both you and your audience.
Associated with
HighNorth | A Digital Agency
$100/hr
$0 earned
Start of list.
End of list.
Quantitative Developer & AI Researcher with 2+ years of experience architecting
high-performance simulation engines and deploying agentic AI systems.
Expert in Python internals, Distributed Systems, and LLM Application Architecture (RAG).
Successfully built and deployed a Generative AI assistant to interface with complex numerical pipelines, reducing
query latency by 30%. Proficient in containerization (Docker) and cloud orchestration (Azure) for
scalable model deployment.
Nigeria
$60/hr
$0 earned
Start of list.
End of list.
Olaoluwa O.
Full-Stack & Mobile Application Developer
⭐ 5.0 💲**$75.00/hr** 💼 20+ Projects
I specialize in designing and developing high-performance web and mobile applications that help businesses scale, streamline operations, and deliver exceptional user experiences. From MVPs to production-ready platforms, I build secure, scalable, and maintainable solutions tailored to your business goals.
Whether you’re launching a startup, modernizing an existing product, or building a cross-platform mobile application, I provide end-to-end development with a strong emphasis on quality, performance, and long-term maintainability.
Core Expertise
• Full-stack development with React, Next.js, Node.js, NestJS, Express.js, PostgreSQL, and TypeScript
• Cross-platform mobile application development using React Native and Expo for Android and iOS
• REST API architecture, authentication systems, payment gateway integrations, and cloud deployment
• Responsive, modern UI/UX implementation with performance optimization and clean, scalable code
• Full product development lifecycle—from planning and architecture to deployment, testing, and ongoing maintenance
• Clear communication, reliable delivery, and long-term technical support
I take pride in building software that is not only visually polished but also robust, scalable, and engineered for real-world use.
United States
$60/hr
$0 earned
Start of list.
End of list.
I am a seasoned web developer with over 10 years of experience, dedicated to creating simple and functional products. I have worked with multiple Silicon Valley startups in fullstack engineer and technical lead roles, creating from scratch both mobile apps in Flutter and backend systems in Java and Laravel. With my comprehensive skill set I deliver efficient solutions tailored to meet diverse client needs.
$65/hr
$5 earned
Start of list.
End of list.
What I love most is taking a messy, repetitive process and turning it into a clean automated pipeline: an LLM that reads the documents, makes the routine decisions, calls the right tools, and hands a human the two percent that actually needs judgment.
What I do:
AI agents & automated workflows — LLM-powered systems that qualify leads, process documents, answer questions over your data, and take repetitive work off your plate.
RAG systems — retrieval over your docs, policies, or knowledge base with grounded, accurate answers (ChromaDB, embeddings, semantic chunking)
Tool & API integration — connecting LLMs to Gmail, Calendar, CRMs, and internal systems through clean, least-privilege interfaces, including MCP servers
LLM app development — Anthropic Claude, OpenAI, and local/on-device models (Ollama, MLX), from prototype to working system
My background: I've built a 35,000-line multi-agent engine that runs autonomously, a from-scratch MCP server exposing developer tools to AI agents, a local-first copilot with human-in-the-loop approval controls, and an on-device mobile AI assistant. I've published fine-tuned model adapters on HuggingFace and deployed agentic systems on AWS Bedrock.
My path into engineering started with exactly this itch: automating an accounts-payable workflow that was eating hours of people's days on work that required almost no real decisions. I move fast, communicate clearly, and I'm as comfortable scoping a vague idea as I am hardening an existing pipeline. Tell me what you're trying to accomplish and I'll tell you honestly whether I'm the right fit and how I'd approach it.
$100/hr
$400K+ earned
Offers consultations
Start of list.
End of list.
Stefano A.
has worked
.
⭐ Top Rated Plus, part of the best 3% experts on Upwork
Currently based in Tallinn, Estonia, the #1 country in the EU in the number of startup unicorns per capita
A successful leader of high-tech teams and products with different technical stacks and backgrounds, the focus areas of his recent projects include Internet-of-Things, Artificial Intelligence, and Financial Technology.
Associated with
Dominance®
$400K+
earned
$80/hr
100%
Job Success
$40K+ earned
Start of list.
End of list.
Education is my primary motivation. As an animator, interactive developer, and certified medical illustrator, I have the opportunity to teach through imagery, using a variety of media and platforms to communicate concepts related to the health sciences. My body of work includes anatomical illustrations, 2D pharmaceutical mechanism-of-action animations, 3D pathophysiology animations, interactive medical device demos, and educational applications for WebGL and iOS. My goal is to provide aesthetically appealing, medically accurate, and instructionally sound visual materials while ensuring a frictionless and rewarding experience for collaborators.
Skills:
* 2D & 3D Animation
* 3D Modeling
* Illustration
* Graphic Design
* Interactive Development
* UI/UX Design
* C# Coding
* Web Development
* Script Writing & Editing
* Audio Recording
* Sound Design