8+
Years Experience
130
Completed Projects
105
Happy Customers
24+
Honors and Awards
My Services
Recommendations
Hubert L
Product Manager at Wizeline
Working with Caleb has been a pleasure.
Better yet - I alerted them of a minor issue
before going to sleep. The issue was fixed the
next morning. I couldn't ask for better
support. Thank you Artur! This is easily a 5
star freelancer.
Jason A
CTO at TianCai
Caleb is a skilled developer in a lot of
different areas. He contributed highly
valuable work for us in a complex web app
using react.js. Also, he successfully
developed a Laravel php/js app as fullstack
dev.
Nicolas V
CEO at SuperMap GIS
Caleb has an amazing discovery and a
pleasure to work with - the project has gone
along smoothly - he came up with ideas and
helped push the project along really well.
Technically superb. Would recommend for any
project
Rod Lee
CEO at Asyst Data Group
Great work done by Denis. What most
impressed me was his approach to unexpected
circumstances in the process of doing the
work. Mature and practical approach which will
lead, hopefully, to additional jobs.
Education
Computer Science
The University of Texas at Austin
I attended the School of Electronic, Information and Electrical Engineering. Attained MSc for an advanced algorithm in discrete mathematical domain. (GIP – Graph Isomorphism Problem)
Aug 1999 - May 2003
- Software Programming
- Software Analysis and Web Design
- Artificial Intelligence
- Data Structures and Algorithms
Work History
Meierhofer AG
Sr. Full Stack Developer
Jun 2021 - Present
- Enhanced DevOps efficiency by automating CI/CD processes and developing. Python-based solutions, including dynamic web interfaces, Web services AI implementation.
- Advanced website(admin) and mobile application functionality and user satisfaction by 15% through the implementation of sophisticated bookmarking, filters, and page routing validations.
- Advanced website(admin) and mobile application functionality and user satisfaction by 15% through the implementation of sophisticated bookmarking, filters, and page routing validations.
- Increased system reliability and performance by 40% by optimizing backend development with Python/Django and comprehensive unit testing, significantly reducing server downtime.
- Created Chatbot called virtual doctor using OpenAI/LLM by combining python module, LangChain into Python/Flask framework. (Interface using React/Next)
UniqueOne Network
Sr. Blockchain Developer
Nov 2019 - May 2021
- Designed and implemented NFT embedded app-chain with substrate framework and integrated unit test of codebase
- Developed custom pallet for NFT embedded feature, designed extrinsics for NFT marketplace
- Collaborated and tutored with frontend and backend developers for web3 integration (polkadotJS + React/Next + GraphQL).
- Enhanced Mobile version using Flutter/Dart framework
- Launched and maintained the app-chain testnet for testing the features like NFT minting and NFT collection making.
Hyperlink Infosystem
Sr. Software Engineer
Jan 2015 - Oct 2019
- Designed SaaS and fintech solutions questant.jp (Django) DBS Bank FMS (microservices)
- Developed 15 Angular components for a front-end project(admin dashboard) and mobile application, incorporating Flutter flow Design to achieve a 10% reduction in page load times.
- Engineered over 30 backend APIs with Django Rest Framework to enhance functionality across diverse features.
- Adopted Test-Driven Development with Pytest, achieving over 88% Test Coverage, ensuring high code quality and reliability.
- Implemented automated CI/CD pipelines using GitHub Actions for test case execution and coverage validation, maintaining a coverage threshold of 80%.
- -Utilized AWS EC2 for server deployment across multiple environments (staging, production, beta, gamma)
Contact information
-
Country:
United States -
State:
Califonia -
City:
Los Angeles -
Street:
4030 Verdant Street -
ZIP / Postal Code
90039
Get in touch
