Hire the Best Smart Contracts Developers
in Serbia

Hi, I'm a Senior Software Engineer, a Blockchain Engineer, and a cryptography expert. I have comprehensive experience not only in blockchain technologies but also in mainstream software development, including Node.js, Express.js, and MongoDB. I would like to help you with your blockchain project, leveraging some of my specialized expertise as listed below. I was the inventor of many innovative techniques, such as autovesting, autoburn, and many other proven ones (you can connect with me to answer any of your questions). Smart Contracts development using Solidity Subgraph indexing using the graph Tokenomics Vesting Web3 integration Unit testing and testing using testnets such as Ropsten and Goerli networks. In-depth knowledge of ERC20 & ERC721 Smart Contracts Deployment to main net using Infura. NFT contract Token/ coin Contract Defi EXchange BEP1155 Hardhat NFT minting Opensea minting Auditing Frameworks & Tools I use: React for UI Node.js Express.js MongoDB Ether JS Hardhat MetaMask Wallet Integration Dapp Defi BSC The graph AWS I use the latest testing techniques, and I can even perform a mainnet fork to test code behavior and interactions with the existing mainnet environment. Let's connect if you are looking for these services, or if you have any questions, or would like to discuss further.

I'm an experienced developer specializing in web-based applications, with expertise in both frontend and backend development. My skills extend to JavaScript and TypeScript, utilizing frameworks like React and Next.js. Proficient in Solidity for Web3 development, I also possess a strong knowledge of libraries such as ethers.js, wagmi, and web3 bridging the gap between web apps and blockchain technology effectively. From vision to reality. I can take you through the whole process while keeping the standards of development at the highest possible level. Fast and reliable.

Summary Topnotch IT professional with HUGE experience in different IT areas: - Software development: More than two decades of experience, many large-scale projects, in Golang, C#/.NET, C/C++, Python, MATLAB, JavaScript, etc. - Specialized in performance-must industries where microseconds count, especially trading. I was working for two of the biggest trading companies in the world: "QuantRes" from Bahamas and "Jump Trading". - Blockchain and crypto: Huge experience in crypto-trading software and blockchain intergration. - DevOps: Planning and deploying efficient development workflows and CI/CD pipelines. - Containerization: HUGE experience with Docker and Kubernetes, both AWS managed EKS and on-premise vanilla Kubernetes. - Public cloud: AWS certificated, planning, implementing and managing cost-effective cloud deployments, tailored for specific client's needs. - Private cloud: Ten years of experience in planning, deploying and maintaining virtual infrastructures based on VMware and Hyper-V. - Hybrid cloud: Maintaining complex private+public cloud infrastructures. - System administration: Combined Linux/Windows environments, networking, monitoring, centralized configuration management, etc. Unique combination of experience and knowledge in many different IT areas makes me an ULTIMATE IT PROBLEM SOLVER. I can solve a problem no matter if it's caused by software bug, networking, DB load, firewalls, or simply bad karma. Certificates - Microsoft: MCP, MCAD - AWS Certified Developer - Associate (DVA-C01) - AWS Certified Solutions Architect - Associate (SAA-C01) - Certified Solidity Developer (CSD) - Certified Smart Contract Developer (CSCD) - Certified NFT Developer - Certified Polygon Developer DevOps Skills Besides DevOps skills mentioned above in AWS section, I also need to mention: - GitHub, Bitbucket; - Other Atlassian products (JIRA, Confluence, FishEye, Bitbucket, etc.); - Code quality tools like SonarQube; - Automated build tools like AppVeyor, Jenkins; - And much more. Software Development Skills - Strong software architecture skills. Planned many large-scale projects from scratch (selecting the appropriate architecture, databases, technology, patterns and practices, integrating third-party packages, etc.). - Programming languages: Golang (5 years of experience), C#/.NET (20 years of experience), MCAD in .NET from 2004; C/C++ on different platforms (Windows, Linux, OS X), with different compilers (Visual C++, GCC, Intel, Clang), Qt framework, C++/WinRT, for UWP; Other languages: Python, MATLAB, JavaScript, etc. I can quickly adopt any other language if needed. - Databases: MS SQL Server and PostgreSQL in RDBMS world; Cassandra, ScyllaDB, Elasticsearch and AWS DynamoDB in NoSQL world, KairosDB, OpenTSDB, InfluxDB in time-series DB systems. I can quickly adopt any other database. I'm able to suggest, plan, deploy and utilize the most appropriate DB system based on the client's needs. - Experience in architecting and developing large-scale distributed systems that are running on multiple servers, exchanging hundreds of thousands of messages per second, with real-time processing, with huge ingestion rates (dozens of thousands of data points per second). - Developing for micro-service architecture, Docker and Kubernetes. Also for modern "serverless" environments in the cloud. - Performance-first development for trading and system applications. Solution Architecture Skills Huge experience in software architecture, combined with huge infrastructure engineering experience (public, private, hybrid clouds), makes e a perfect Solution Architect. SysOps Skills - On-Premise virtualization based on VMware and Hyper-V; - System administration in combined (Win/Lin) environments; - Networking (private networks, DMZ, firewalls, routers, VPN connections with remote offices, VLANs, subnets, etc.). - Advanced monitoring with Zabbix and similar tools; - Centralized configuration management with Puppet or Ansible. Blockchain-specific development skills - Solidity smart contracts developer, following security and other best practices. - Using well-known third-party contracts and libraries like OpenZeppelin. - Using off-chain oracles like Chainlink. - Deploying ERC-20 tokens, initial coin offerings (ICO), ERC-721 and ERC-1155 non-fungible tokens (NFT). - Experience with Ethereum and Polygon blockchains, able to adapt to any other. - Unit testing and deployment automation by using tools like Truffle suite and Ganache. I can also adapt to Python tools like `brownie`. - Integrating smart contracts to development / production workflows by using Web3.js. Looking forward to hearing from you!