Balti, Balti, Republic of Moldova
$35/hr · Starting at $40
Is your application struggling with slow response times, high memory usage, or scaling issues? I specialize in deep-level Node.js optimization and architecting systems for maximum efficiency. I have a…
Volgograd, Volgograd, Russian Federation
$16/hr · Starting at $32
Programming and technical artistry of desktop/mobile games/apps: programming: architecture, algorithms, data structures, maths, physics, performance, refactoring, maintainability, reducing bus factor
Lahore, Punjab, Pakistan
ID Verified
$35/hr · Starting at $100
I engineer pixel-perfect Webflow, Framer, and custom Frontend architectures that translate complex Figma designs into high-converting, blazing-fast, pixel-perfect, and fully responsive web application…
Laguna Beach, California, United States
162,415/yr · 98.2%
$25/hr · Starting at $500
Code Optimization Services for High-Performance Applications. Looking for professional Code Optimization services to improve your application speed, scalability, and performance? YES IT Labs LLC dba
Conway, Arkansas, United States
168,930/yr · 100%
$70/hr · Starting at $2,000
I provide hands-on React and Node.js development for teams that need experienced help building, extending, or maintaining JavaScript-based applications. This service is focused on implementation work
Pune, Maharashtra, India
8,708/yr · 100%
$30/hr · Starting at $50
Debugging, troubleshooting, optimizing old applications written in Microsoft Visual Basic ver. 5 or ver. 6 VB6 Legacy Expertise With over 25 years of hands-on experience in Visual Basic 6, I’ve built
Bhakkar, Punjab, Pakistan
27,504/yr · 100%
Elevate your backend infrastructure with production-grade Haskell solutions designed for robustness, concurrency, and long-term maintainability. As a seasoned Haskell developer specializing in backend…
Mohali, Punjab, India
4,788/yr · 100%
$15/hr · Starting at $25
I am a professional Python developer and debugger with expertise in fixing code errors, optimising performance and building scalable solutions. Whether it’s a small bug, a broken script or a complex a…
Chennai, Tamil Nadu, India
$18/hr · Starting at $25,000
We bridge the gap between legacy business logic and modern cloud ecosystems. By combining enterprise-grade refactoring engines (Moderne / OpenRewrite) with agentic AI (Claude Code, ChatGPT Codex), we
22,555/yr · 100%
$10/hr · Starting at $40
Looking for a structured and efficient development approach for your web or app project? I specialize in Model-View-Controller (MVC) architecture, ensuring clean, scalable, and maintainable code for y…
Komarnyky, L'vivs'ka Oblast', Ukraine
8,189/yr · 100%
$45/hr · Starting at $3,000
I provide professional firmware development for advanced motion detection systems using ESP32 with WiFi CSI capabilities. This service is ideal for smart surveillance, IoT automation, and embedded sen…
Sahibzada Ajit Singh Nagar, Punjab, India
4,166/yr · 100%
$15/hr · Starting at $100
I’m a full-stack JavaScript developer specializing in the MERN stack (MongoDB, Express.js, React.js, Node.js) with over 9 years of hands-on experience building high-performance, scalable web applicati…
8,428/yr · 99.9%
$5/hr · Starting at $25
As an experienced PHP/Laravel developer for years, I can build a website/web application from scratch. Similarly, I can work on existing Laravel based web applications doing things like Refactoring
6,708/yr · 100%
I am a Professional Android App Developer so the code written will be clean, documented and properly refactored in Android Studio. The UI of android app will be designed as per your requirement and I'…
Eastborough, Kansas, United States
690/yr · 100%
I provide hands-on React and Node.js development that need experienced help building, extending, or maintaining JavaScript-based applications. This service is focused on implementation work within an
Delano, Minnesota, United States
I design and build end-to-end applications — from elegant, responsive frontends to powerful, secure backends — delivering scalable, high-performance software tailored to your needs. Full Stack Experti…
$15/hr · Starting at $300
I provide professional MERN Stack web application development services for startups, businesses, and growing teams looking for scalable, secure, and high-performance digital solutions. With over 5 yea…
Bhawalpur, Punjab, Pakistan
3,022/yr · 100%
$10/hr · Starting at $100
Hello ! I specialize in Node.js performance optimization to help businesses ensure their applications run efficiently, reliably, and can scale as needed. Slow or inefficient code can affect user exper…
Gijon, Asturias, Spain
$8/hr · Starting at $25
refactoring of existing C++ code. adaptation of existing code bases to new standards. bug hunting and fixing. general code clean-up.
Clayton, Victoria, Australia
$10/hr · Starting at $120
If you need to refactor your code in order to make it clear or accomplish certain internal standards, internal standards or SEI CERT C, C++ Coding Standard