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Kris, Blockchain & Full Stack Software Engineer

Singapore

Last Updated: 5 Mar 2024

Identity Verified

Programming Skills Verified

- Engineer who has 6+ years of experience with many programming languages, frameworks, and platforms; - 2+ years experience with developing smart contracts on Rust; - Solid skills with Solidity; - Working experience in building an NFT marketplace platform on Polygon and Binance Smart Chain using ERC-721 and ERC-1155; - Experience with ether.js, web3.js, and JS/TS frameworks; - Familiar with blockchain Ethereum, Binance, Tron, Solana, Polkadot, Tezos, Polygon, Huobi ECO chain, etc; - Deep knowledge in implemented Metamask, Torus, and other wallets to increase user experiences with the web apps; - Advanced English; - Available ASAP.

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Polygon

Solidity

Rust 2 yr.

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View Himanshu

Himanshu G., Blockchain Engineer

India

Last Updated: 4 Jul 2023

- Blockchain Developer with 5+ yrs of experience - Motivated to learn and deploy new technologies to bring transparency, decentralization, security & equality at low cost. - Advance Daaps development: Solidity+Web3(React) - Layer 2 Scaling Solution (Polygon), Avalanche(AVAX) - NFT Marketplace(ERC - 721/1155), Crypto Payment Solutions & DeFi Cross Chain Bridges - ERC-20 Tokens, ICO, DEX, Staking, Swapping - DAO + Multi-Sigs Wallets - Available ASAP

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Polygon

Solidity

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View Oleg

Oleg P., Blockchain Developer

Germany

Last Updated: 13 Nov 2023

Strong software engineer with 5 years of experience in blockchain development; - Proficient in TypeScript, JavaScript, Web3, and various blockchain technologies such as Rust/Solana, and Polygon/Solidity; - Skilled in smart contract development, DAO implementation, and blockchain integration with web applications; - Experienced in building decentralized applications (dApps) and NFT marketplaces; - Knowledgeable in implementing online crypto payments and blockchain-based gaming systems; - Familiar with AWS, Firebase, and other cloud services for scalable and secure application development; - Achievements include implementing tokenized player trading, decentralized tournaments, and interactive NFT marketplaces; - Strong problem-solving and troubleshooting skills with a solid understanding of browser and web concepts.

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Polygon

Smart Contracts 5 yr.

React 2 yr.

DAO

Solidity

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View Martin

Martin C., Expert Rust/Solidity Smart Contract Blockchain Developer

Buenos Aires, Argentina

Last Updated: 4 Jul 2023

-As a senior Programmer and Blockchain developer, with over 6 years of development, I am an expert in NFT Website, NFT Art Generation, and NFT Marketplace, Solidity, Web3, EVM based network chains, Custom smart contracts, ERC20/721, ERC1155, NFTs, IDO's, Bridges Block explorers, UI Web3 Dapps Integration, IPFS. - Smart Contract Development (Solidity/ Rust/ Anchor Framework/ Cosmwasm) - Cardano smart contract by utilizing CosmWasm smart contract by utilizing Rust CosmWasm. - Solanasmartcontractimprovement(Unittest,Solana-program-library,Solana-web3,Raydiumtradeandorca)by utilizing Rust and Anchor system. - Polkadot Relay Chain using Substrate in Rust programming. - Smart contract advancement in networks (Ethereum, BSC, Matic/Polygon) by utilizing Solidity. - Uniswap V2, V3, Curve (Yearn, Convex), Sushiswap, Quickswap, etc. - Written smart contracts for ERC20, ERC223, ERC721, ERC1155, ICOs, airdrop, Vesting, MultiSig, Wallet, etc - DeFi, Dex protocols - Front-end development with Smart contract integration by utilizing Web3, truffle. React (Redux/Thunk/Saga), Typescript, Node js. - NFT minting website andNFT marketplace development(Create a listing by admin, flat&Crypto payment,Bundle Sale/ Bulk Transfers, Drop)

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Polygon

Rust

Solidity

View Martin

View Taras

Taras, Blockchain Developer / Software Engineer

Georgia

Last Updated: 8 Dec 2023

- Experienced Blockchain Developer / Software Engineer with 6 years of experience in crypto financial and DeFi domains. - Proficient in programming languages such as Solidity, Python, and JavaScript. - Strong expertise in blockchain technologies including Uniswap, Ethereum, Polygon, SSV.Network, and wallet integrations. - Skilled in backend development using frameworks like FastAPI, Flask, and Node.js. - Familiar with message brokers like Kafka and cloud platforms like AWS and Azure. - Proficient in DevOps tools like Docker, Kubernetes, and Helm. - Experienced in working with databases like PostgreSQL, MongoDB, and DynamoDB. - Strong knowledge of source control systems like Git, Bitbucket, and GitHub. - Demonstrated ability to design REST API schemas and architect DAO systems. - Proven track record in blockchain development, smart contract optimization, and security audits. - Experienced in setting up and configuring network parameters and implementing identity and access controls. - Proficient in setting up CI/CD pipelines and conducting code reviews. - Skilled in implementing and managing smart contracts compliant with relevant laws and regulations. - Experienced in optimizing storage and computation within smart contracts to minimize transaction costs. - Strong knowledge of SDLC, software development practices, and software engineering principles. - Excellent communication and team collaboration skills. - Computer Science and Software Engineering education background. - Proven ability to find common language with the team and lead on various projects.

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Polygon 2 yr.

Python 3 yr.

Ethereum blockchain (ETH) 3 yr.

Solidity 6 yr.

DAO 3 yr.

View Taras

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FAQs about Polygon Development

How do I hire a Polygon developer?

Are you desperately looking for a Polygon developer validated to your requirements and skills? Are you lacking in resources and tools to find the right developer? If yes, then you are at the right place! Because at Upstaff, the selection of the Polygon Developer is done professionally as per your requirement, in a short time of just a few days, from calling to the instant task of your validated developer, with all your required skills.

Where is the best place to find Polygon developers?

Sure enough, within the network there must be dozens, if not hundreds, of services and platforms where you can look for the Polygon guy you need, but just Upstaff lets you sort out the best of the best real qualified developers practically in a couple of minutes, so that you will be able to select the one whose personality will be a perfect fit to your company. This is the case when you can create a genuinely “Pizza” type of service in the field of custom software development.

How are Upstaff Polygon developers different?

Vetting by expert human reviewers is combined with historically curated feedback from clients and team-mates, which has enabled us to save, on average, more than 50 hours for each client team evaluating Polygon candidates for every position. We live and breathe technical excellence, borne out of extensive industry expertise.

How quickly can I hire Polygon developers through Upstaff?

Our process begins with a 30-minute discovery call: we’ll discuss your pain points, technical requirements, and team diversity. Meet Carefully Matched Polygon Talents. Upon your meeting confirmation, we’ll send you profiles and arrange an introduction call with the right talents for your project, within 1-3 days. Schedule a call to meet Polygon engineers in person. Make the right call. Bring a new Polygon developer on board with a trial period: confirm that the person you hired does the job right, no termination fees and no hidden fees.

How does Upstaff vet remote Polygon engineers?

After this introductory round, Upstaff Managers do an eval of the soft skills of the candidates before the hiring decision is approved or rejected. For the hard skills, the Upstaff Staffing Platform has a short testing session to check their Polygon skills or engage a senior developer to do a technical interview for more senior developers. You can reuse some of the hard and soft skills of past candidates to connect them with other jobs in the future (see below). Upstaff managers also do an eval of the talent before approving them for further work, allowing us to accelerate the work and ability to scale, but also providing information to clients on the talent pipeline. Finally, we also have a matching engine within the work mining system that matches candidates and jobs in real time.

How to hire Polygon developer?

If recruiting services and job boards are not your 1st option, you may want to consider a client-oriented service like Upstaff to find & hire Polygon developers. Upstaff has a network of vetted and tested Polygon developers. Here, you can hire web developers for a few simple coding tasks with Polygon.

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Electronic Data Interchange (EDI)Robotic Process Automation (RPA)Scripting and Automation XSLT

Web Engineering

Back-End Web Front-End Web Full Stack Web Coding Tutor Prototyping

Writing and Translation

Language Localization Language Tutor Sales and Marketing Copywriter Technical Writer

Go (Golang) Ecosystem

Gin Echo GORM Gorilla Mux

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Mobile Frameworks and Libraries

AFNetworking Alamofire CoreAnimation CoreLocation Crashlytics Fabric Ionic Mockito UIKit Flutter Cordova Android Studio AVFoundation Metal CoreData Android automation Android SDK Gson ARKit MapKit Cocoa Android APIs Combine framework SwiftUI OSMdroid ButterKnife LiveData Dagger2 DataBinding Room (Android Jetpack) Koin Android Jetpack Xamarin Glide Picasso Retrofit2 Kotlin Coroutines Retrofit Dagger StoreKit SceneKit Moya Flutter-Redux Webpack Viper SnapKit SwiftLint AWS SDK for Android Android NDK Moshi ViewBinding TestFlight Android apps Data binding Cicerone Google Play services Jetpack Compose Coil Retrofit 2 CalendarKit Swinject KeychainSwift Architecture Components leakcanary CoreBluetooth Ktor Lottie Axum AssetsLibrary LLDB

Ruby Frameworks and Libraries

Capybara Grails Rails API Ruby on Rails (RoR) Sidekiq Sinatra mongoid turbolinks Capistrano Hanami RubyMine rubocop Active model serializer Grape RVM Minitest Apartment (Ruby) active admin ActiveRecord bundler

Rust Frameworks and Libraries

Percy juniper Actix Web Axum

Scala Frameworks and Libraries

Play Framework Akka Akka Streams Clojure Scalatest Akka Actors Alpakka Leiningen Scala Cats Scala SBT

Data Analysis and Visualization Technologies

Decision Tree HBase Kibana Logistic regression Random Forest Tableau Apache ZooKeeper Periscope Apache Oozie Business Intelligence (BI) Tools Data Analysis Apache Airflow Data modeling Kimbal Apache Spark Streaming Azure Databricks Apache Hive Apache Spark Business Analysis Google Analytics Apache Spark ML AWS Athena Data Modeling Jupyter Notebook Talend UIPath REFramework UIPath MapReduce UiPath Studio Impala Apache Pig Sqoop Data visualization ML Apache Nifi Google Spreadsheets Requirements Analysis Microsoft Power BI Data Mining Dashboards Data Scraping MS Power Automate Map Reduce Flume Oozie Attunity Regression ELT Fivetran Microsoft Azure Synapse Analytics Accumulo Cloudera Celonis (Execution Management System) ARIS

Databases & Management Systems / ORM

Apache Cassandra AWS ElasticSearch Eloquent ORM Firebase Apache Hadoop Hibernate MongoDB MySQL NoSQL Oracle Database PostgreSQL Redis RethinkDB SQL SQLAlchemy SQLite Snowflake Percona MariaDB Memcached MS Access Microsoft SQL Server PL/SQL SQL (DataGrip) DBMS: MySQL AWS Redshift Greenplum Teradata Apache Spark Streaming RDBMS Azure Cosmos DB Hadoop ecosystem Apache Hive Apache Spark T-SQL FireBird ORM Liquibase CouchDB DBeaver Sphinx AWS DynamoDB Flyway Apache Spark ML Hadoop Distributed File System (HDFS) Firebase messaging BigChainDB FireStore Sequelize dbt Realm SQL Server Management Studio TSQL Typeorm MemSQL Google Firebase Neo4j GreenDao Oracle 10g MongoDB Compass CosmosDB OrmLite Transact-SQL PostGIS InfluxDB pgSQL Couchbase Firebase Realtime Database CockroachDB Materialize IBM DB2 MS Access Dbase Foxpro Prisma GORM SSMS MySQL Workbench Redis Cache SSRS Google BigQuery Django ORM Relational Databases Pg Admin ELK stack (Elasticsearch, Logstash, Kibana) Toad PGBouncer NaviCat HSQLDB Apache Druid Aura MS SQL Server Management Studio Clickhouse SqlServer Microsoft Azure SQL Server SQL queries Airtable Netezza Data Warehousing Oracle SQL Data Lake Sybase Data Warehouse Aerospike Database Modeling SSIS Doctrine ORM KSQL Slick database query ArangoDB Apache Kylin RocksDB Bigtable SSAS

PHP Frameworks / Libraries / Tools

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AI & Machine Learning

Keras Machine Learning NumPy OpenCV Scikit-learn TensorFlow Xgboost CNN PyTorch Azure Cognitive Search Apache Spark ML Deep Learning AWS Machine learning services (ML) AWS SageMaker (Amazon SageMaker) Kubeflow Mlflow Neural Networks

Amazon Web Services

AWS API AWS Cloud Data Science services AWS EBS AWS EC2 AWS ECS (Amazon Elastic Container Service) AWS ElasticSearch AWS IAM (Amazon Identity and Access Management) AWS VPC AWS Redshift AWS Security Groups AWS SNS AWS SQS (Amazon Simple Queue Service) AWS Elastic Kubernetes Service (EKS) AWS Lambda AWS S3 AWS DynamoDB AWS SES (Amazon Simple Email Service) AWS Cloudformation AWS EMR AWS S3 MinIO AWS ECR AWS Amplify AWS SDK for Android AWS Serverless AWS CodePipeline AWS Secrets Manager AWS Timestream (Amazon Time Series Database) AWS ElastiCache AWS Machine learning services (ML) AWS Route 53 AWS Pipeline AWS EFS (Amazon Elastic File System) AWS Boto3 AWS Advertising API AWS Auto Scaling AWS Kinesis AWS EB (Amazon Elastic Beanstalk) AWS Glue AWS API Gateway AWS AppSync AWS MQ AWS big data services AWS ELB (Amazon Elastic Load Balancer) AWS CloudWatch AWS R53 AWS CLI (Amazon Command Line Interface) AWS Aurora AWS Fargate AWS Batch AWS CodeDeploy AWS basics AWS RDS (Amazon Relational Database Service) AWS Quicksight AWS CloudTrail AWS WorkSpaces AWS ALB AWS CloudFront AWS LightSail AWS Cognito AWS SageMaker (Amazon SageMaker) AWS SAM AWS STS AWS SDK AWS Glue Studio AWS CDK

Google Cloud Platform

Google Cloud AI Google App Engine Google Compute Engine (GCE) Google Data Studio Google Services Google Kubernetes Engine (GKE) GCP AI GCP Big Data services GCP Storage Google Docs Google BigQuery Google Cloud Storage Google Workspace Google Cloud Pub/Sub

Adobe Experience Manager (AEM)

AEM Sightly

_Business Intelligence (BI)

Metabase BI Reporting AR

Codecs & Media Containers

Ffmpeg

Collaboration, Task & Issue Tracking

Cron Redmine Asana Jira + Confluence IBM Rational ClearCase YouTrack Atlassian JIRA OTRS Miro Slack Microsoft Teams Atlassian Confluence Atlassian Trello Microsoft SharePoint

Hosting, Control Panels

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Logging and Monitoring

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Message/Queue/Task Brokers

Celery RabbitMQ Apache Oozie Twillio Kafka Streams Apache ActiveMQ Apache Kafka IBM MQ NATS Apache Kafka 2 Message Queue Telemetry Transport (MQQT) AWS MQ ZeroMQ Redis MQ Mosquitto

Operating Systems

Centos Debian Fedora FreeBSD Linux Ubuntu Unix Windows macOS Exim iOS Oracle Solaris RedHat Windows Phone OpenSuse GNU Arch Linux HP-UX NetBSD MS-DOS

Project Management & Administration

Product Management Project Management MVP Communication Leadership Strategy Marketing strategies ROI Scrum Master Product Roadmaps Acceptance Criteria Agile Project Management Startups Amplitude Flow chart

QA, Test Automation, Security

QA Automation Automated testing BugZilla Capybara Cucumber JUnit Apache Maven Mockito RSpec Postman UI/UX testing QA TestNG Jasmine Mocha Appium WebdriverIO Protractor CodeceptJS SoapUI JMeter Selenoid Wireshark JBehave PyTest MSTest SpecFlow NUnit Espresso XCUITEST Gatling Manual Testing Selenide TestLink Fiddler Mantis Firebug Behavior-driven development (BDD) Selenium Webdriver Chrome DevTools Functional Testing UI testing Selenium IDE Cypress Allure Unit Testing Testing Jest React Testing Library Karma Browserstack SauceLabs TestRail Serenity Spock Burp Suite API testing Software testing Test design Charles Proxy WEB testing XCTest Gherkin Nmap MS Test stress testing regression testing smoke testing GUI testing bug reports xunit Zeplin nock Chrome Developer Tool Testing Library Puppeteer TestFlight UIAutomator Percy E2E tests Locust OWASP ZAP Minitest PHPUnit App Tester Ad-hoc testing Cross-browser testing REST Assured ReportPortal Test Plan Test Cases Scalatest Allure Reports Cloud Security Performance Testing Applitools Cybersecurity Integration testing Zephyr Newman exploratory testing Playwright Allure Report non-functional testing Mock A/B Testing Metasploit Nessus Manual and Automation Testing Load Testing Sanity Testing Selenium Grid Selenium React-testing-library web application security Usability tests Equivalence Partitioning Boundary Value Analysis Localization testing Mobile automation testing iOS

Scripting and Command Line Interfaces

Bash Perl *nix Shell Scripts CLI Powershell Shell Scripts Angular CLI EMacs ZSH XSS Regexp

SDK / API and Integrations

AWS API Facebook API Google Maps API Rails API Stripe Swagger OAuth Google API JSON Web Token (JWT) Apollo GraphQL Zuul Log4j API Sendgrid API Microsoft Azure API LinkedIn API PayPal API Cloud based API YouTube API Dropbox API Twitter API Telegram API Eslint LinkedIn API Android SDK AmoCRM API IOS SDK SOAP API ASP.NET Web API Web API API testing Android APIs iOS APIs Twilio Jira API ServiceNow API Kotlin Flow Retrofit Hubspot API SharePoint API Twilio API Facebook SDK AWS SDK for Android Windows API JSON API Context API Fetch API Hasura FastApi Mulesoft RESTful API Apiary Google SDK Plivo ApplePay Spotify JSP Liferay Insomnia AWS Advertising API Mailchimp API API Callouts OpenAPI AWS API Gateway Metadata API Bulk API Keycloak windows forms (winforms) Atlassian SDK Swagger API OIDC Git API Bigcommerce API DirectX RestTemplate ApiGateway

Third Party Tools / IDEs / SDK / Services

Eclipse PyCharm Microsoft Visual Studio Code AutoCAD MathCAD MatLab Yarn Gentoo XCode jbuilder RubyMine vim Atom PhpStorm Microsoft Visual Studio Android Studio Visual Studio Team Services WebStorm Web Services Sublime Text Android SDK IOS SDK Asterisk Algolia JetPack Android Jetpack SQL Server Management Studio Facebook SDK AWS SDK for Android Microsoft Outlook Notepad++ ClickUp Simulink NPM + Yarn Firebase Auth Microsoft Office 365 AppCenter Anaconda Power Apps Qt Framework Aptana Apache NetBeans Microsoft Word Microsoft Excel Microsoft PowerPoint CLion OData (Open Data Protocol) MS Power Automate homebrew MICROSOFT OFFICE Interface Builder SOAP Web Services Spring Web Services Copado MailGun Web Services Description Language (WSDL) Firebase SDK Flutter SDK Adobe Flex

UiPath

UIPath REFramework UIPath UiPath Orchestrator UiPath Document Understanding UiPath Studio

Version Control

BitBucket GitHub GitLab Mercurial Perforce Git SVN VCS SourceTree CVS Github Actions Assembla Gitflow Gerrit Apache Subversion Git submodules TortoiseSVN Nexus Crucible

Virtualization, Containers and Orchestration

OpenVZ Proxmox Terraform Vagrant VmWare XEN Docker LXC Docker Swarm Rancher OpenVPN Docker Compose vSphere VPN Google Compute Engine (GCE) VMWare ESXi WebAssembly Kubenetes ESXi VMWare ESX KVM (for Kernel-based Virtual Machine) Oracle VM VirtualBox IPSec VPN LXD Terragrunt Nomad LibVirt

Hiring Polygon developers? Then you should know!

Table of Contents

How and where is Polygon used?

Decentralized Finance: Yield farming
Non-Fungible Tokens: Digital art sales
Gaming: In-game asset ownership
Supply Chain Management: Transparent tracking
Healthcare: Secure patient data
Real Estate: Property tokenization
Identity Management: Verification systems
Energy: Renewable energy trading
Retail: Loyalty reward programs
Education: Credential verification

Compare Junior, Middle, Senior, and Expert/Team Lead Polygon Developer roles

Seniority Name	Years of experience	Responsibilities and activities	Average salary (USD/year)
Junior	0-2 years	Code implementation Bug fixing Learning new technologies	50,000
Middle	2-5 years	Module development Code review Assist juniors	70,000
Senior	5-8 years	Architectural design Lead projects Mentor team members	90,000
Expert/Team Lead	8+ years	Strategic planning Client interaction Team management	120,000

Quick Facts about Polygon.

When the technology was created: In 1953, the era of poodle skirts and the first color TV.
Most popular project types using this technology: Gaming, simulation, and animation projects.
Technology entry threshold: Requires a basic understanding of programming logic and algorithms.
Most popular related technology: Object-Oriented Programming (OOP) for seamless integration.
Fun fact: The first-ever software bug was a literal bug – a moth trapped in a computer causing malfunctions.

TOP Polygon Related Technologies

React Native (Facebook, 2015)
Node.js (Joyent, 2009)
Docker (Docker Inc., 2013)
GraphQL (Facebook, 2015)
Kubernetes (Google, 2014)

What are top Polygon instruments and tools?

Truffle Suite: A tool suite for Ethereum development, released by Truffle Technologies
Remix: An Ethereum IDE, released by the Ethereum Foundation
Hardhat: A development environment for Ethereum smart contracts, released by Nomic Labs
Ganache: A personal blockchain for Ethereum development, released by Truffle Technologies

Hire Deeply Vetted Polygon Developer

Kris, Blockchain & Full Stack Software Engineer

Himanshu G., Blockchain Engineer

Oleg P., Blockchain Developer

Martin C., Expert Rust/Solidity Smart Contract Blockchain Developer

Taras, Blockchain Developer / Software Engineer

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Only 3 Steps to Hire Polygon Engineers

Welcome to Upstaff

Yaroslav Kuntsevych

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FAQs about Polygon Development

How do I hire a Polygon developer?

Where is the best place to find Polygon developers?

How are Upstaff Polygon developers different?

How quickly can I hire Polygon developers through Upstaff?

How does Upstaff vet remote Polygon engineers?

How to hire Polygon developer?

Discover Our Talent Experience & Skills

Hiring Polygon developers? Then you should know!

How and where is Polygon used?

Compare Junior, Middle, Senior, and Expert/Team Lead Polygon Developer roles

Quick Facts about Polygon.

TOP Polygon Related Technologies

What are top Polygon instruments and tools?

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