08/31/2024 updated

NG
100 % available

Senior Blockchain Developer, Full Stack Developer, Backend Developer

Obrenovac, Serbia
Only remote
Obrenovac, Serbia
Only remote

HTMLJavaScriptPHPA/B TestingApplication Programming Interfaces (APIs)Agile MethodologyArtificial IntelligenceBootstrap (Software)Cascading Style Sheets (CSS)Cloud ComputingDatabasesContinuous IntegrationDependency InjectionSoftware Design PatternsDjangoUser Interface DesignjQueryPython (Programming Language)Network SecurityLaravelRoutingNode.jsPayment GatewayRuby On RailsBlockchainNext.jsSymfonyTypeScriptPerformance TestingReact.jsNFTLarge Language ModelsBackendGitFastAPIVue.jsStripeAngularJSEthereumSolidityNpm(Software)Web3.jsReact NativeBitcoinFront End Software DevelopmentReact ReduxApi DesignRestful ApiGPTSoftware Version ControlServerless ComputingUser AdministrationGolangProgramming Languages
A/B testing, Agile methodology, agile development, Angular, API design, API Development, API, APIs, AI, back-end development, Backend, back-end, Bitcoin, Blockchain, Bootstrap, CSS, CSS3, cloud-based, cloud computing, CI/CD, Database, dependency injection, UI/UX, Django, Ethereum, FastAPI, front-end, Frontend, ChatGPT, Git, Golang, HTML, Computer Science, jQuery, JavaScript, Laravel, LLM, NFT, network security, Next.js, Node, Node.js, NPM, PHP, Payment gateway, performance testing, programming languages, Python, React native, Redux, React, React.js, RESTful API, RESTful APIs, routing, Ruby on Rails, serverless, design patterns, version control, Solidity, Stripe, Symfony, Typescript, user management, Vue, web3

Languages

GermanGoodEnglishGood

Project history

Full Stack Blockchain Developer

Greenbee
Led a team of 5 to develop and maintain a decentralized
network of 500+ nodes, ensuring a robust consensus
mechanism, facilitating 99% uptime.
Designed and developed an innovative blockchain-based
encryption algorithm that increased the system's security by
35%.
Built 6 reusable cross-chain libraries
Develop various screens for the front-end using
React/Vue/Next and used various predefined components from
NPM(Node Package Manager) and Redux library.
Heavily Involved in UI Responsive Designs of the project, used
HTML, jQuery, CSS/CSS3, JavaScript and React native,
Bootstrap, Node.js
Developed DAPPs, NFT minting, smart contracts, integration
web3

Senior Blockchain Developer

Star Designz
Created, tested, and implemented Ethereum smart contracts
and integrated it into the existing system seamlessly and
securely
Designed the token economics, with a focus on creating a
strong and viable financial infrastructure for the new
cryptocurrency on Solana network and implemented a token
sale countdown timer on the ICO page
Developed a wallet tracker for Base and Solana, with features
including real-time transaction monitoring, customizable
notifications, and intuitive, user-friendly transaction summaries
Launched a project where I designed and implemented smart
contracts on the Tron network to facilitate various
functionalities of the DApp, deployed custom tokens on the
Tron Network tailored to the requirements of the DApp
Constructed a BSC chain staking platform integrated with
Wallet Connect v2 which supports staking for BEP-20 Tokens
and allocates rewards to users via a fixed percentage based on
their stakes

Blockchain Web3 Solidity Smart Contract

DeFi Protocols NFT DEX Solana Rust

Anchor Ethereum Cryptocurrencies DApp

Consensus Algorithms React.js Node.js

Golang Python FastAPI LLM Next.js

PHP Laravel Symfony Ruby on Rails




Ducky City
* https://ducky.city/ *
Ethereum/BSC based Play-To-Earn game.
In the game, players can acquire ducks through various means,
such as purchasing them from a marketplace or earning them
through gameplay.
Each duck has its own characteristics, traits, and attributes that
make it unique. Players can breed ducks together to create new
offspring with a combination of traits from their parent ducks.
Smart contract for the Duck NFTs - NFT staking contract to
generate reward to stakers
NFT market place site Users can stake items to earn rewards.
Staking rewards vary on the value of the item, rarity and usages.

Tokenization Service
I have been involved in multiple tokenization projects where I
developed smart contracts for asset tokenization, including ERC-
20 and ERC-721 tokens.
I am eager to gain expertise in managing the entire lifecycle of
tokenization processes on the Avalanche network.
* https://www.ecobased.ai/ *
Built the site using crossMint service and chainlink.
So for minting the NFT token, I didn't deploy the smart contract,
only use crossMint service for that.

Full Stack Developer

Starrek
Completed medium and large-scale projects successfully
including ecommerce, CRM, API integrations, Payment
gateway integration, RESTful API development, Single Page
applications and more.
Took the lead in understanding the requirements of a new MVP,
working closely with other teams to ensure alignment and
clarify, defining the initial scope for development, and
developing, testing and deploying of the project
Mentored team members to improve company-wide JavaScript
and Python knowledge. Implemented a new testing program
that helped cut errors and downtime by 45%
Worked closely with the UX team to optimize JavaScript and
PHP codes, improving latency and suer journey
Deployed applications on multiple cloud-based production
environments and maintained staging environments for testing,
leading to smoother releases

Backend Developer

Nexti
Integrated AI functionalities, including ChatGPT and
proprietary LLM models, into Chegg projects to enhance
student interaction and support.
Utilized Fast API to create APIs for initiating user chats and
routing questions efficiently
Spearheaded a project with a team of 10, implementing Agile
methodology to enhance team efficiency, Golang on back-end
and React on front-end
In the era of cloud computing, we ensure that our applications
are designed to scale horizontally and vertically as needed. We
use Lambda function for serverless services.

Investing in mastering API design principles and standards
implemented with Turbogears and Django. We make sure that
our RESTful APIs are not only functional but also easy to
understand, efficient and well-documented.

Frontend Developer

brandcom
Develop various screens for the frontend using
React/Vue/Next and used various predefined components
from NPM(Node Package Manager) and Redux library
Heavily involved in UI Responsive Designs of the project, used
HTML, jQuery, CSS/CSS3, JavaScript and React native,
Bootstrap, Node.js
Designed and developed a custom Angular module for a client,
resulting in a 40% reduction in development time and a 25%
increase in team productivity
Optimized user experience across a range of devices..
Facilitated a smooth MVP release by coordination efforts
between UI/UX designers and backend developers

Job Site Development
* www.ijobdesk.com *
It is Huge Project using PHP Laravel Framework that you can do
Job Posting and Hiring developers, just like Upwork.com.
iJobDesk is online job site to support their buyers and sellers to
work together remotely. It has been built on Laravel framework
(latest version). Buyers can easily hire freelancers and work
together.
- Designed architecture of the project and huge Database
structure to handle user management, activities and transactions.
- Implemented core modules, models, controllers, providers,
commands, observers, basic libraries and APIs to run the huge
system from scratch. Played role of lead Developer..
- Implemented RESTful APIs for a tracking tool, and integrated
3rd party modules, APIs
- Integrated payment gateways such as Paypal, Payoneer, Stripe,
Credit Card and Bitcoin
- Git version control for entire project, branching, committing,
pushing, pulling requests and merging.

Podio API Development (using Symfony)
* www.Podio.com *
- Developed fronotend using React/Hooks, Typescript and
implemented RESTful APIs.
- Worked on building the APIs and interfaces to communicate
apps and implementing MVP architecture for agile development
- Worked on integrating third party libraries integrations
- Worked on providing t he best user experience and making the
app work for multiple screens.
- Implemented Task Management related modules.
- Created CI/CD on AWS Code Pipelines.

Chegg Project
* www.chegg.com *
- Integrated AI functionalities, including ChatGPT and proprietary
LLM models, into Chegg projects to enhance student interaction
and support
- Utilized FastAPI to create APIs for initiating user chats andR
routing questions efficiently
- Implemented dependency injection and strategy design patterns to ensure flexibility in LLM technology routing

- Leveraged Kfaka for stremaing LLM responses and formatting them for frontend display

- Employed optimizely for A/B testing to optimize and log LLM
usage, as well as to manage feature toggling.
- Conducted performance testing using K6 to evaluate chat agent
response times.

Contact form

Log in to get in touch

You need to be logged in to use the contact form.

Sign upLog in