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Hire Freelance GCD Developers and Engineers

View Yehor

Yehor H., GCD Developer

Last Job: 23 Aug 2024

- Over 5 years of diverse experience in IT and expertise in Swift and various iOS frameworks in various fields (Social Chats/Communication, online language learning, healthcare, food & delivery). - Basic experience with network protocols & vpn (several months projects) - Available ASAP (Deferment from mobilisation till summer 2026) - C1 English

GCD

Swift 5 yr.

UIKit 5 yr.

SwiftUI

View Yehor

View Vladislav

Vladislav D., GCD Developer

Last Job: 4 Jul 2023

- 6+ years of experience in iOS development; - In-depth knowledge of iOS SDK; - Experience working with fintech and cryptocurrency projects; - Good knowledge of the development of different mobile projects; - Experience working with Objective-C; - Deep abilities with Swift; - Good skills working with Firebase; - Experience in UI/UX implementation; - Good skills in maintenance and testing; - Upper-Intermediate English.

GCD

iOS

Objective-C

View Vladislav

View Nikita

Nikita O., GCD Developer

Last Job: 4 Jul 2023

- 7+ years experience with iOS; - Deep skills working with Swift and Objective C; - Good skills working with Firebase; - Experience working with Google services; - Solid knowledge of SOLID and DRY; - Good abilities working with fintech and banking projects; - Experience in testing; - Upper-Intermediate English.

GCD

Swift

Objective-C

View Nikita

View Sergii

Sergii, GCD Developer

Last Job: 18 Sep 2023

- Experienced iOS developer with 7+ years of commercial experience in IT; - Proficient in Swift and Objective-C programming languages; - Strong knowledge of object-oriented programming (OOP) and design patterns; - Skilled in using iOS technologies such as UIKit, SwiftUI, Xcode, Core Data, Core Animation, and more; - Familiar with various architecture patterns like Clean-Swift, MVC, MVP, MVP-C, MVVM+C; - Experienced in working with REST APIs using URLSession and Alamofire; - Proficient in using Git and SVN for source control; - Familiar with agile development methodologies like SCRUM and Kanban; - Strong attention to detail and ability to work in a team environment; - Excellent communication skills and ability to work under pressure; - Fluent in spoken and written English at an upper-intermediate level.

GCD

iOS

View Sergii

View Kyrylo

Kyrylo C., GCD Developer

Last Job: 23 Aug 2024

- Motivated software engineer with 7 years of iOS development experience (Swift, SwiftUI, and Objective-C). - Over 30 App Store project launches for iOS/macOS, including VPN, OpenVPN protocols, and deploy VPN servers) - Comfortable in both sole developer and team player roles, team-lead experience - Back-end experience with GoLang (last two years) - Upper-Intermediate English - Available to start ASAP

GCD

Swift 7 yr.

OpenVPN

View Kyrylo

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Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.

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Within 1-3 days, we’ll share profiles and connect you with the right GCD talents for your project. Schedule a call to meet engineers in person.

Validate Your Choice

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Welcome on Upstaff: The best site to hire GCD Developer

Upstaff.com was launched in 2019, addressing software service companies, startups and ISVs, increasingly varying and evolving needs for qualified software engineers

Yaroslav Kuntsevych

CEO

About Us

Hire Dedicated GCD Developer Trusted by People

Volodymyr August 11, 2023

Leaving a review to express how delighted I am to have found such a great side gig here. The project is intriguing, and I'm really enjoying the team dynamics. I'm also quite satisfied with the compensation aspect. It's crucial to feel valued for the work you put in.Overall, I'm grateful for the opportunity to contribute to this project and share my expertise. I'm thrilled to give a shoutout and recommendation to anyone seeking an engaging and rewarding work opportunity.

Henry Akwerigbe August 30, 2023

This is a super team to work with. Through Upstaff, I have had multiple projects to work on. Work culture has been awesome, teammates have been super nice and collaborative, with a very professional management.There's always a project for you if you're into tech such Front-end, Back-end, Mobile Development, Fullstack, Data Analytics, QA, Machine Learning / AI, Web3, Gaming and lots more.It gets even better because many projects even allow full remote from anywhere!Nice job to the Upstaff Team 🙌🏽.

Vitalii Stalynskyi August 29, 2023

I have been working with Upstaff for over a year on a project related to landscape design and management of contractors in land design projects. During the project, we have done a lot of work on migrating the project to a multitenant architecture and are currently working on new features from the backlog.When we started this project, the hiring processes were organized well. Everything went smoothly, and we were able to start working quickly. Payments always come on time, and there is always support from managers. All issues are resolved quickly.Overall, I am very happy with my experience working with Upstaff, and I recommend them to anyone looking for a new project. They are a reliable company that provides great projects and conditions. I highly recommend them to anyone looking for a partner for their next project.

Roman Masniuk August 25, 2023

I worked with Upstaff engineers for over 2 years, and my experience with them was great. We deployed several individual contributors to clients' implementations and put up two teams of upstaff engineers. Managers' understanding of tech and engineering is head and shoulders above other agencies. They have a solid selection of engineers, each time presented strong candidates. They were able to address our needs and resolve things very fast. Managers and devs were responsive and proactive. Great experience!

Maryna Navo September 25, 2023

Крутий сервіс, зручна комунікація. Допомогли з закриттям мого питання на 200%

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FAQs on GCD Development

What is a GCD Developer?

A GCD Developer is a specialist in the GCD framework/language, focusing on developing applications or systems that require expertise in this particular technology.

Why should I hire a GCD Developer through Upstaff.com?

Hiring through Upstaff.com gives you access to a curated pool of pre-screened GCD Developers, ensuring you find the right talent quickly and efficiently.

How do I know if a GCD Developer is right for my project?

If your project involves developing applications or systems that rely heavily on GCD, then hiring a GCD Developer would be essential.

How does the hiring process work on Upstaff.com?

Post Your Job: Provide details about your project.
Review Candidates: Access profiles of qualified GCD Developers.
Interview: Evaluate candidates through interviews.
Hire: Choose the best fit for your project.

What is the cost of hiring a GCD Developer?

The cost depends on factors like experience and project scope, but Upstaff.com offers competitive rates and flexible pricing options.

Can I hire GCD Developers on a part-time or project-based basis?

Yes, Upstaff.com allows you to hire GCD Developers on both a part-time and project-based basis, depending on your needs.

What are the qualifications of GCD Developers on Upstaff.com?

All developers undergo a strict vetting process to ensure they meet our high standards of expertise and professionalism.

How do I manage a GCD Developer once hired?

Upstaff.com offers tools and resources to help you manage your developer effectively, including communication platforms and project tracking tools.

What support does Upstaff.com offer during the hiring process?

Upstaff.com provides ongoing support, including help with onboarding, and expert advice to ensure you make the right hire.

Can I replace a GCD Developer if they are not meeting expectations?

Yes, Upstaff.com allows you to replace a developer if they are not meeting your expectations, ensuring you get the right fit for your project.

Discover Our Talent Experience & Skills

Browse by Experience

Browse by Skills

Browse by Experience

Browse by Skills

Data and Analytics

Data Analyst (DA)Data Engineer Data Extraction and ETL Business Intelligence (BI)Data Mining and Management Process Mining

Digital Platforms

Adobe Commerce (ex Magento)Adobe Experience Manager and Platform (AEM AEP)Microsoft (AX, Dynamics 365, SharePoint)

Delivery Management and Analytics

Agile Leader Business Analyst (BA)Project Delivery Project Manager Service Manager

Design and Creative

User Interface and Experience Designer (UI/UX)Mobile Apps Product Designer Immersive Experience Designer (AR/VR/MR/Metaverse)

Desktop Software

Embedded Systems

Embedded Firmware Embedded Software GPU Software

GameDev

Game Designer Video Game

Industrial Engineering

BIM (Building Information Modelling)

Low-Code

Microsoft PowerApps Salesforce Lightning

Marketing

Chief Marketing Officer (CMO)

Metaverse and Blockchain (Web 3.0)

Blockchain and Cryptography NFT Marketplaces Wallet and Web3 Integration DeFi Ecosystem Metaverse/GameFi Smart Contract Audit/Security DEX and CEX DAO/dApps Blockchain Project/Product Manager Crypto Social Media Marketing Crypto and Web3 Community Management and Support Telegram Bots and Mini-Apps

Operations and Cloud

Security Operations (SecOps)Database Development Database Management and Administration Information Security and Compliance Officer NetOps and SysOps Site Reliability Engineer (SRE)Solutions Architect

Quality Engineering and Testing

Manual QA / Tester Mobile QA QA Automation / Testing

Scripting and Automation

Robotic Process Automation (RPA)Scripting and Automation

Web Engineering

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

Writing and Translation

Language Tutor

Go (Golang) Ecosystem

Gin Echo GORM Gorilla Mux

JavaScript Frameworks and Libraries

React Angular Vue.js Node.js ES6 Grunt Gulp.js Next.js NgRx Nuxt React Native Redux RxJs Vuex Webpack AngularJS Yarn RequireJS Babel Enzyme React Testing Library Ember.js Mongoose KnockoutJS Mobx Lodash React Bootstrap Formik Canvas Express Hammer.JS Redux-persist React Query Vuetify Styled components Moment.js Redux Form Reselect Hapi.js React Navigation GatsbyJS Pm2 Meteor.js JSX Flutter-Redux Webpack i18next Backbone.js Passport.js React-Router three.js Redux Thunk Moleculer microservices framework Canva Quasar Winston Handlebars.js Mustache Koa.js Strapi Fastify NPM + Yarn Electron Puppeteer AdonisJS Redux-toolkit SvelteJS ethers.js NestJS Nightwatch.js Angular JWT Immutable.js React-Saga EJS Angular CLI Redux-Saga React Hooks yup Node Package Manager (NPM)React Context SinonJS Sencha React Thunk Vanilla JS Vue Router Expo Vite LoopBack NativeJS SailsJS Preact Web3.js Polkadot.js Bookshelf.js FabricJS mui Pinia

Rust Frameworks and Libraries

Percy juniper Actix Web Actix Sentry Axum

Scala Frameworks and Libraries

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

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 PGAdmin 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 Informix Data Warehouse Aerospike Database Modeling Database Design SSIS Doctrine ORM KSQL Slick database query ArangoDB Apache Kylin RocksDB Bigtable SSAS

PHP Frameworks / Libraries / Tools

Slim Symfony Laravel Xdebug CakePHP CodeIgniter Kohana Composer Twig Yii Zend Faker Psr PHPUnit Phalcon FastCGI Process Manager (FPM)Lumen October CMS Apiato

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 DevOps 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

Codecs & Media Containers

Ffmpeg

Collaboration, Task & Issue Tracking

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

Hosting, Control Panels

uWSGI cPanel

Logging and Monitoring

Grafana Logstash Sentry Nagios Zabbix Cacti Prometheus Splunk Datadog Graylog SIP Azure Monitor Opsgenie Monit The Dude

Message/Queue/Task Brokers

Celery RabbitMQ Apache Oozie Twillio Kafka Streams Apache ActiveMQ Apache Kafka IBM MQ NATS 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 Problem Solving Leadership Strategy Marketing strategies ROI Scrum Master Product Roadmaps Acceptance Criteria Startups Amplitude Marketing research Flow chart

QA, Test Automation, Security

QA Automation Automated testing BugZilla Capybara Cucumber JUnit Apache Maven Mockito RSpec Postman UI/UX testing QA Jasmine Mocha Appium WebdriverIO Protractor CodeceptJS SoapUI JMeter Selenoid Wireshark JBehave PyTest 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 Percy E2E tests Locust OWASP ZAP Minitest PHPUnit PhantomJS App Tester Ad-hoc testing Cross-browser testing ReportPortal Test Plan Test Cases Scalatest Mobile Testing Allure Reports Cloud Security Performance Testing Applitools Cybersecurity Integration testing Zephyr Newman exploratory testing Playwright Allure Report non-functional testing Mock A/B Testing e2e testing Metasploit Nessus Manual and Automation Testing Load Testing Sanity Testing Selenium Grid K6 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

Make 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 Payment Gateways Plivo Spotify JSP Liferay Electronic Data Interchange (EDI)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 Collections API RestTemplate ApiGateway

UiPath

UIPath REFramework UIPath UiPath Orchestrator UiPath Document Understanding UiPath Studio

Version Control

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

Virtualization, Containers and Orchestration

OpenVZ Proxmox Terraform Vagrant VmWare XEN Docker LXC Docker Swarm Rancher OpenVPN Docker Compose Docker Registry 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 Packer Nomad LibVirt

Want to hire GCD developer? Then you should know!

Table of Contents

How and where is GCD used?

Efficient task scheduling: Optimize project timelines
Resource allocation: Streamline workforce distribution
Data processing: Enhance computational efficiency
Load balancing: Equilibrate server workloads
Parallel computing: Accelerate complex calculations
Error correction: Ensure data accuracy
Cryptographic applications: Secure sensitive information
Networking protocols: Enhance communication efficiency
Signal processing: Improve audio/video quality
Distributed systems: Coordinate multiple processes

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

Seniority Name	Years of experience	Responsibilities and activities	Average salary (USD/year)
Junior	1-2 years	Code optimization Bug fixing Simple feature development	$60,000
Middle	3-5 years	Module development Database design Integration testing	$80,000
Senior	6-8 years	Architectural design Mentorship Complex problem-solving	$100,000
Expert/Team Lead	9+ years	Strategic planning Team management Project coordination	$120,000

Quick Facts about GCD.

At the dawn of the digital era in 1997, GCD Software Development was born.
From mobile apps to web development, this tech is a favorite for all project types.
Entry into the world of GCD requires a basic understanding of coding principles.
Its closest companion in the tech world is the ever-popular Agile methodology.
Fun Fact: GCD developers have been known to recite binary code in their sleep!

TOP GCD Related Technologies

Java (James Gosling, 1995)
Python (Guido van Rossum, 1991)
C++ (Bjarne Stroustrup, 1985)
C# (Microsoft, 2000)
JavaScript (Netscape Communications Corporation, 1995)

What are top GCD instruments and tools?

Wireshark: Network protocol analyzer tool released in 1998
Nmap: Security scanner tool by Gordon Lyon in 1997
Putty: SSH and telnet client tool by Simon Tatham in 1998
Snort: Intrusion detection system tool by Martin Roesch in 1998
Metasploit: Penetration testing tool by H.D. Moore in 2003

Hire GCD Developer

Hire Freelance GCD Developers and Engineers

Yehor H., GCD Developer

Vladislav D., GCD Developer

Nikita O., GCD Developer

Sergii, GCD Developer

Kyrylo C., GCD Developer

Sign up now to see more GCD developers

Talk to Our Talent Expert

Only 3 Steps to Hire GCD Developer

Welcome on Upstaff: The best site to hire GCD Developer

Yaroslav Kuntsevych

Hire GCD Developer as Effortless as Calling a Taxi

FAQs on GCD Development

What is a GCD Developer?

Why should I hire a GCD Developer through Upstaff.com?

How do I know if a GCD Developer is right for my project?

How does the hiring process work on Upstaff.com?

What is the cost of hiring a GCD Developer?

Can I hire GCD Developers on a part-time or project-based basis?

What are the qualifications of GCD Developers on Upstaff.com?

How do I manage a GCD Developer once hired?

What support does Upstaff.com offer during the hiring process?

Can I replace a GCD Developer if they are not meeting expectations?

Discover Our Talent Experience & Skills

Want to hire GCD developer? Then you should know!

How and where is GCD used?

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

Quick Facts about GCD.

TOP GCD Related Technologies

What are top GCD instruments and tools?

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Talk to Our Talent Expert