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Hire Command and Query Responsibility Segregation (CQRS) Developer

Command and Query Responsibility Segregation (CQRS)
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Command and Query Responsibility Segregation (CQRS)
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DmytroElixir Engineer

Elixir 1yr.
JavaScript
PHP
Ruby
Node.js
React
Ruby on Rails
PostgreSQL
AWS
Command and Query Responsibility Segregation (CQRS)
GitLab
RabbitMQ
Event Sourcing
POS
...

- 1+ year of commercial experience with Elixir - Experience with starting up projects from a scratch - Upper intermediate English

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Seniority Senior (5-10 years)
Location Kyiv, Ukraine
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RY

Roman Y.Full Stack Developer

TypeScript 10yr.
JavaScript 10yr.
Node.js 10yr.
Java
PHP
Swift
Ant Design
Bootstrap
CSS
HTML
Material UI
SCSS
Socket.io
ES6
Express
Mongoose
NestJS
Next.js
React
Redux
Vue.js
AWS DynamoDB
MongoDB
MySQL
PostgreSQL
Redis
Sequelize
Typeorm
AWS
DigitalOcean
AWS CloudFront
AWS DynamoDB
AWS EC2
AWS Elastic Kubernetes Service (EKS)
AWS Lambda
AWS S3
AWS SQS
Azure Blockchain
Azure Blockchain
ETH (Ethereum blockchain)
Web3
Command and Query Responsibility Segregation (CQRS)
microservices architecture
Docker
Git
GitLab CI
Kubernetes
GraphQL
RESTful API
GRPC
WebRTC
WebSockets
iOS
Linux
macOS
Windows
Jest
Jira
Redmine
Kafka
RabbitMQ
Nginx
...

- More than 10 years of experience in developing applications using JavaScript and TypeScript - Experience with a setup a blockchain IoT network using the Hyperledger(infrastructure) - Built a system and smart contracts, that are deploying into ETH network for digital signing of contracts for each deal of customers - Setup an ETH explorer - Build a web game, based on Solana, NFT tokens - Experience with a migration from a monolithic architecture to microservices, it helped to spread jobs between teams and increased development speed, also here grew and lead the most productive team in the company (11 people) - For the KYB/KYC platform startup based in Estonia architectured and implemented a whole app with Nest.js and React, it helps to build scale and flexible application, CQRS architecture - Built processes for project lifecycle from development to release, CI/CD, started and scaled team, held workshops for the team - Built a headless modern framework for frontend that based on React, swiftly increased a development speed - Solved problem with a slow project building, increased speed x7.7 (210s ->27s) - Supported a quite aging project and migrated some parts to microservices, wrapped into Kubernetes - Optimized database queries, increased x3 - Suggested a better structure for a codebase for GraphQL and React, increased development speed - Architecture & Tech Lead at Node.js Department

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Seniority Expert (10+ years)
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VG

Vladyslav GPHP Developer

PHP
JavaScript
Python
TypeScript
Angular
Eleventy
Node.js
NPM (Node Package Manager)
React
React Native
three.js
Vue.js
WebGL
Bootstrap
CSS
HTML
jQuery
LESS
SASS
AWS ElasticSearch
Clickhouse
MongoDB
MySQL
PostgreSQL
Redis
Laravel
PHP Sylius
Symfony
Yii
Zend
AWS
GCP (Google Cloud Platform)
AWS ElasticSearch
Asana
Atlassian Trello
Jira
Bitrix
CMS
Drupal
Joomla
OpenCart
Shopify
WordPress
Command and Query Responsibility Segregation (CQRS)
Scrum
Docker
Git
SVN
Google Maps API
RESTful API
RabbitMQ
Event Sourcing
...

- Software Engineer with over 11 years of commercial development experience - Extensive experience in developing applications using PHP and Python - Skilled in building high-loaded online stores using SOLID, DRY, and KISS principles - Strong background in architecture design and database optimization - Proficient in mentoring senior specialists and conducting code reviews - Experienced in stress testing and speed optimization - Familiar with MVC and Domain-Driven Design architecture, as well as Restful API development - Intermediate English - Availability starting from ASAP

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Seniority Middle (3-5 years)
Location Kyiv, Ukraine
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K

KonstantinSenior Full-Stack Engineer

JavaScript
TypeScript
Go
PHP
Rust
CSS
HTML5
Express
Gulp.js
Koa.js
Mongoose
Node.js
React
React-Router
Redux
Redux-Saga
Strapi
.NET
.NET Framework
AWS ElasticSearch
MongoDB
NoSQL
PostgreSQL
RDBMS
Redis
AWS
SAAS
AWS Aurora
AWS ECR
AWS ElasticSearch
AWS ELB (Amazon Elastic Load Balancer)
AWS Lambda
AWS RDS (Amazon Relational Database Service)
AWS S3
AWS SNS
AWS SQS
Blockchain
Apache HTTP Server
API
PayPal API
Stripe
Swagger
Command and Query Responsibility Segregation (CQRS)
Kanban
Scrum
Docker
Git
GitHub
Jira
Kafka
Twillio
QA
Web3
Event Sourcing
...

- I have experience cooperating with clients from all over the world and building products related to various spheres: e-commerce, real estate, custom CRM, trading, social media and many more. Product tech design and full cycle of development and support. - Key skills - Product tech design and full cycle of development and support - Technical analysis, time & budget management - knowledge of Go, Rust and JavaScript/TypeScript (node.js/react.js) - knowledge of Database systems: RDBMS, noSQL - knowledge of code quality tools and systems, continuous integration and delivery - knowledge of AWS services - knowledge of QA processes, integration and e2e testing. - Upper- Intermediate English

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Seniority Senior (5-10 years)
Location Ukraine
View Konstantin

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Want to hire Command and Query Responsibility Segregation (CQRS) developer? Then you should know!

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How and where is Command and Query Responsibility Segregation (CQRS) used?

  • Event Sourcing: Financial transactions
  • Read Scalability: Real-time analytics
  • Separation of Concerns: E-commerce platform
  • Performance Optimization: Social media feeds
  • Complex Domain Logic: Healthcare systems
  • Increased Productivity: Inventory management

Compare Junior, Middle, Senior, and Expert/Team Lead Command and Query Responsibility Segregation (CQRS) Developer roles

Seniority NameYears of experienceResponsibilities and activitiesAverage salary (USD/year)
Junior1-3 years
  • Implement basic CQRS patterns
  • Assist in developing microservices
  • Participate in code reviews
$60,000
Middle3-5 years
  • Design and implement complex CQRS solutions
  • Lead small feature teams
  • Optimize query performance
$80,000
Senior5-8 years
  • Architect CQRS systems at scale
  • Mentor junior developers
  • Ensure system reliability
$100,000
Expert/Team Lead8+ years
  • Define CQRS best practices
  • Lead cross-functional teams
  • Drive technical innovation
$120,000

Quick Facts about Command and Query Responsibility Segregation (CQRS).

  • Command and Query Responsibility Segregation (CQRS) was born in 2010.
  • Various project types like e-commerce platforms widely embrace CQRS.
  • You need a decent grasp of event sourcing and domain-driven design.
  • Event sourcing is a close companion to CQRS in the tech realm.
  • In CQRS, separating reads from writes is like having dessert before dinner!

TOP Command and Query Responsibility Segregation (CQRS) Related Technologies

  1. Axon Framework

    2. (AxonIQ, 2020)

  2. Lagom Framework

    3. (Lightbend, 2016)

  3. EventStore

    4. (Event Store Ltd, 2012)

  4. Microsoft Orleans

    5. (Microsoft, 2014)

  5. Akka

    6. (Lightbend, 2009)

What are top Command and Query Responsibility Segregation (CQRS) instruments and tools?

  • Axon Framework: Developed by AxonIQ, released in 2010
  • EventStore: From Event Store LLC, released in 2012
  • Lagom: Created by Lightbend, released in 2016
  • NEventStore: From Jonathan Oliver, released in 2010
  • Eventuate: From Chris Richardson, released in 2017
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FAQs on Command and Query Responsibility Segregation (CQRS) Development

What is a Command and Query Responsibility Segregation (CQRS) Developer? Arrow

A Command and Query Responsibility Segregation (CQRS) Developer is a specialist in the Command and Query Responsibility Segregation (CQRS) framework/language, focusing on developing applications or systems that require expertise in this particular technology.

Why should I hire a Command and Query Responsibility Segregation (CQRS) Developer through Upstaff.com? Arrow

Hiring through Upstaff.com gives you access to a curated pool of pre-screened Command and Query Responsibility Segregation (CQRS) Developers, ensuring you find the right talent quickly and efficiently.

How do I know if a Command and Query Responsibility Segregation (CQRS) Developer is right for my project? Arrow

If your project involves developing applications or systems that rely heavily on Command and Query Responsibility Segregation (CQRS), then hiring a Command and Query Responsibility Segregation (CQRS) Developer would be essential.

How does the hiring process work on Upstaff.com? Arrow

Post Your Job: Provide details about your project.
Review Candidates: Access profiles of qualified Command and Query Responsibility Segregation (CQRS) Developers.
Interview: Evaluate candidates through interviews.
Hire: Choose the best fit for your project.

What is the cost of hiring a Command and Query Responsibility Segregation (CQRS) Developer? Arrow

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

Can I hire Command and Query Responsibility Segregation (CQRS) Developers on a part-time or project-based basis? Arrow

Yes, Upstaff.com allows you to hire Command and Query Responsibility Segregation (CQRS) Developers on both a part-time and project-based basis, depending on your needs.

What are the qualifications of Command and Query Responsibility Segregation (CQRS) Developers on Upstaff.com? Arrow

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

How do I manage a Command and Query Responsibility Segregation (CQRS) Developer once hired? Arrow

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? Arrow

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

Can I replace a Command and Query Responsibility Segregation (CQRS) Developer if they are not meeting expectations? Arrow

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.