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Zeljko
Brocic

Average Review
0.00
Reputation
17
Finished gigs
0
Finished jobs
0
Website
Not specified
Country
Not specified
Skills
Javascript
React
MongoDB
Blockchain & Crypto
Python
Solidity
Smart Contract Development
Dapps
Trading bot
Exchange development
Ethereum
Web3.js
Crypto
NFT
DeFi
Solana
Specialization
crypto
Hourly rate
$50/hr
Preferred payment options
ETH
USDT
USDC
USDT
USDC
BNB
BUSD
USDT
TRX
About me
With over 7 years of experience as a senior software engineer, I have a proven track record of developing and maintaining complex software systems. I specialize in building responsive user interfaces with React and scalable microservice architectures. My expertise includes backend development with Node.js, Golang, and Python, utilizing GraphQL for efficient data management, and employing MySQL and MongoDB for robust database solutions. I have extensive experience deploying and managing applications on AWS infrastructure, using Terraform for infrastructure as code, and implementing serverless functions for optimized performance. My comprehensive skill set ensures the delivery of high-quality, scalable, and secure software solutions across various domains. In addition to my full-stack expertise, I have a strong background in blockchain development, including designing, deploying, and maintaining blockchain-based applications. I am experienced in working with smart contracts on Ethereum a

Work experience

Czlabs.io
April 2023 – Current time
Job title
DApp Developer & Tester | Senior Software Engineer
Work experience & achievements
- Developed and tested Swap Aggregator on Solana. - Integrated blockchain functionality into front-end applications using React and Node.js, creating seamless interactions between users and the blockchain network.- Conducted e2e testing and integration testing of frontend & backend and transactions to ensure security, performance, and compliance with best practices. - Collaborated with the QA team to establish automated testing pipelines in jenkins.
Eduforma
June 2021 – March 2023
Job title
Principal Software Engineer
Work experience & achievements
- Developed and maintained a Learning Management System (LMS) for online learning, enhancing the educational experience for users. - Built interactive and responsive user interfaces using React, improving user engagement and satisfaction. - Implemented a microservice architecture, ensuring scalable and maintainable codebases for the LMS. - Designed and integrated GraphQL APIs for efficient data querying and manipulation, reducing server load. - Developed backend services with Node.js, providing robust and scalable server-side logic for the LMS. - Optimized MySQL databases to handle large volumes of educational data, ensuring high performance and reliability. - Utilized MongoDB for flexible and scalable storage, accommodating various data structures and enhancing data retrieval speed. - Deployed and managed the LMS on AWS infrastructure, leveraging cloud services for scalability and reliability.
Uber Technology
July 2020 – June 2021
Job title
Software Engineer III
Work experience & achievements
- Collaborated with a team of 10 other developers to deliver high-quality software solutions on time and within budget. - Built and maintained the frontend of the recruiting management system using React.js, ensuring a responsive and user-friendly interface. - Implemented GraphQL APIs for efficient data retrieval and manipulation, reducing the load on the backend servers. - Developed backend services using Golang and gRPC, providing high-performance, scalable microservices architecture. - Configured and managed CI/CD pipelines to automate the build, test, and deployment processes, ensuring consistent and reliable releases. - Optimized PostgreSQL databases to handle large volumes of recruitment data, improving query performance and data integrity. - Deployed and managed the recruiting management system on AWS, leveraging cloud services for scalability and reliability. - Utilized Jenkins for continuous integration and deployment, automating various stages of the development lifecycle.
CODETIQ
February 2017 – June 2020
Job title
Jr. Software Engineer
Work experience & achievements
- Implemented and maintained an incident management system using Node.js, React.js, and PostgreSQL, ensuring timely and efficient resolution of incidents and minimizing downtime. - Developed and integrated GraphQL APIs for a seamless data-fetching layer, enhancing the performance and scalability of the application. - Led the development of frontend components using React.js, improving user experience and interface responsiveness. - Built and maintained RESTful APIs with Node.js, enabling robust and secure communication between client and server.- Deployed and managed applications on AWS, utilizing services like EC2, S3, and RDS for scalable and reliable cloud infrastructure. - Configured and maintained continuous integration and continuous deployment (CI/CD) pipelines, automating build, test, and deployment processes to ensure smooth and consistent releases.

Education

Palawan State University
Graduation year: 2016
Level of study
Bachelor
Major / Field of study
Computer Science
Sr. Software Engineer
Blockchain & Crypto
Solidity
Smart Contract Development
$30
$30/hr
More info