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Zeljko I.

@zeljkoi6

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5.0
2
4.4
4.4
100%

Senior Software Engineer

$30 USD / Hour
Flag of
Serbia (3:45 PM)
Joined on August 6, 2024
$30 USD / Hour
You are the right place. Deep experiences on software engineering!!! I am a skilled software engineer with expertise in C/C++, Java, TypeScript, Node.js, React, Trading Strategy and Flutter. I excel in building responsive web and mobile applications, integrating APIs, and implementing secure authentication with OAuth. My strong background in Go and web scraping allows me to deliver robust backend solutions and data-driven insights. Let's collaborate to bring your project to life with innovative and efficient technology!
Verifications
On time
100%
On budget
100%
Accept rate
60%

Portfolio

Portfolio

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5.0 · 2 Reviews
Reviews
M
Sa Željkom sam imao izvrsno iskustvo. Pokazao je duboku stručnost u integraciji Next.js i OpenAI pružajući učinkovita rješenja za naš projekt. Bio je profesionalan, brz i komunikativan tijekom cijelog procesa, dosljedno isporučujući visokokvalitetan posao prije roka. Uistinu je otišao više od toga i nisam mogao biti zadovoljniji konačnim ishodom. Topla preporuka Željko! Veselim se ponovnoj suradnji s njim u budućnosti.
Closed User
@miroslavpesic111
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,
2 months ago
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Will hire again...............
Vijay R.
@vjfromgt
Flag of
dix hills, United States
4 months ago
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Experience
Senior Web Developer
Jan, 2024 - May, 2024
4 months
eMenaverse
Jan, 2024 - May, 2024
4 months
Led the development of web applications for various projects, ensuring high performance and usability. Collaborate with cross-functional teams to design and implement new features based on client requirements. Conduct code reviews and provide technical guidance to junior developers. Optimize website performance and implement security best practices.
Flag of
Dubai, United Arab Emirates
Jan, 2024 - May, 2024
4 months
Full Stack Developer
Oct, 2021 - Nov, 2023
2 years, 1 month
Qualysoft
Oct, 2021 - Nov, 2023
2 years, 1 month
Architected a scalable backend usingNode.js, Express, and MongoDB, achieving 99.9% availability. Led Jira integration for project management, improving collaboration efficiency by 20%. Developed an AI-driven recommendation engine in Python and TensorFlow, boosting user engagement by 20%.
Flag of
Vienna, Austria
Oct, 2021 - Nov, 2023
2 years, 1 month
Software Engineer
Dec, 2020 - Feb, 2021
2 months
Rivian
Dec, 2020 - Feb, 2021
2 months
Spearheaded the end-to-end development and optimization of device firmware, resulting in a 15% improvement in system performance and a 20% reduction in boottime. Applied advanced reverse engineering techniques to analyze and improve existing systems, leading to a 30% reduction in software vulnerabilities and enhancing overall system security.
Flag of
Belgrade, Serbia
Dec, 2020 - Feb, 2021
2 months
Education
UNIVERSITY OF NOVI SAD
2009 - 2013
4 years
Bachelor's of Degree in Computer Sciences
Flag of
Serbia
2009 - 2013
4 years
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