Hire Deeply Vetted gUnicorn Developer

Upstaff is the best deep-vetting talent platform to match you with top gUnicorn developers remotely. Scale your engineering team with the push of a button

Trusted by Businesses

Volodymyr D., gUnicorn Developer

Kyiv, Ukraine
Last Updated: 4 Jul 2023
Identity Verified
Language Verified
Programming Skills Verified
CV Verified




View Volodymyr

Yevhen M., gUnicorn Developer

Lviv, Ukraine
Last Updated: 5 Sep 2023

- Experienced software engineer with 4+ years of experience in Python development. - Proficient in Python and deep knowledge of web development technologies. - Strong understanding of software design principles and methodologies. - Skilled in using various programming languages such as Python, JavaScript, and SQL. - Familiarity with popular frameworks and technologies including Django, Flask, Docker, and AWS. - Excellent knowledge of common software engineering practices like test-driven development and continuous integration. - Experienced in working with Redis, MySQL, and PostgreSQL databases and cloud platforms like GCP and AWS. - Upper-Intermediate English. - Availability starting from ASAP

Learn more



Python   4 yr.

View Yevhen

Hassan, gUnicorn Developer

Last Updated: 4 Jul 2023

- Software Engineer with excellent problem-solving and debugging skills, eager to demonstrate a unique range of skills, commitment, and dedication to developing world-class software solutions - Upper-Intermediate English

Learn more






View Hassan

Vlad D, gUnicorn Developer

Kyiv, Ukraine
Last Updated: 11 Jun 2024
Identity Verified
Language Verified
Programming Skills Verified
CV Verified

- Full-Stack (Python + Vue.js) Software Engineer with a background in digital marketing; - Core Python, Flask & Django Frameworks, reusable code - RESTful APIs - MVC, SOLID, DRY principles; - SQL, Django ORM, Elastic Search Platform - Upper-intermediate English; - Available ASAP

Learn more




View Vlad

Anton M., gUnicorn Developer

Last Updated: 4 Jul 2023

- Experience in developing 4+ years - Intermediate English - Available ASAP - Location: Kyiv

Learn more




View Anton
Based on 9 reviews

Talk to Our Talent Expert

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

Only 3 Steps to Hire gUnicorn Engineers

Talk to Our Talent Expert
Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Meet Carefully Matched Talents
Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person.
Validate Your Choice
Bring new talent on board with a trial period to confirm you hire the right one. There are no termination fees or hidden costs.

Welcome to Upstaff

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

Yaroslav Kuntsevych

Trusted by People
Based on 9 reviews
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.

Maryna Navo September 25, 2023

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

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.

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!

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 🙌🏽.

Hire gUnicorn Developer as Effortless as Calling a Taxi

Hire gUnicorn engineer

FAQs about gUnicorn Development

How do I hire a gUnicorn developer? Arrow

If you urgently need a verified and qualified gUnicorn developer, and resources for finding the right candidate are lacking, Upstaff is exactly the service you need. We approach the selection of gUnicorn developers professionally, tailored precisely to your needs. From placing the call to the completion of your task by a qualified developer, only a few days will pass.

Where is the best place to find gUnicorn developers? Arrow

Undoubtedly, there are dozens, if not hundreds, of specialized services and platforms on the network for finding the right gUnicorn engineer. However, only Upstaff offers you the service of selecting real qualified professionals almost in real time. With Upstaff, software development is easier than calling a taxi.

How are Upstaff gUnicorn developers different? Arrow

AI tools and expert human reviewers in the vetting process are combined with a track record and historically collected feedback from clients and teammates. On average, we save over 50 hours for client teams in interviewing gUnicorn candidates for each job position. We are fueled by a passion for technical expertise, drawn from our deep understanding of the industry.

How quickly can I hire gUnicorn developers through Upstaff? Arrow

Our journey starts with a 30-minute discovery call to explore your project challenges, technical needs, and team diversity. Meet Carefully Matched gUnicorn Talents. Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person. Validate Your Choice. Bring a new gUnicorn developer on board with a trial period to confirm that you’ve hired the right one. There are no termination fees or hidden costs.

How does Upstaff vet remote gUnicorn engineers? Arrow

Upstaff Managers conduct an introductory round with potential candidates to assess their soft skills. Additionally, the talent’s hard skills are evaluated through testing or verification by a qualified developer during a technical interview. The Upstaff Staffing Platform stores data on past and present gUnicorn candidates. Upstaff managers also assess talent and facilitate rapid work and scalability, offering clients valuable insights into their talent pipeline. Additionally, we have a matching system within the platform that operates in real-time, facilitating efficient pairing of candidates with suitable positions.

Discover Our Talent Experience & Skills

Browse by Experience
Browse by Skills
Browse by Experience
Browse by Experience
Browse by Skills
Adobe Experience Manager (AEM) Arrow
_Business Intelligence (BI) Arrow
Codecs & Media Containers Arrow
Hosting, Control Panels Arrow

Hiring gUnicorn developers? Then you should know!

Share this article
Table of Contents

What are top gUnicorn instruments and tools?

Instruments and tools
  • Python: Python is a versatile and widely-used programming language that is the foundation of gUnicorn. It was created by Guido van Rossum and first released in 1991. Python is known for its simplicity, readability, and extensive standard library. It is highly compatible with various platforms and has a large community of developers.
  • Gevent: Gevent is a coroutine-based networking library for Python that enhances the performance of gUnicorn. It allows for high concurrency and asynchronous programming, making it ideal for handling multiple connections and requests simultaneously. Gevent is known for its efficient event loop implementation and seamless integration with gUnicorn.
  • Greenlet: Greenlet is a lightweight Python library that provides a simple way to create and switch between microthreads, also known as greenlets. It is used by gUnicorn to achieve concurrency and improve the overall performance of the server. Greenlet is highly efficient and has minimal overhead, making it a popular choice for building high-performance applications.
  • Eventlet: Eventlet is another asynchronous networking library for Python that gUnicorn leverages. It is built on top of Greenlet and offers a simplified way to handle I/O operations asynchronously. Eventlet is known for its ease of use, scalability, and compatibility with gUnicorn, making it a valuable tool for building scalable web applications.
  • Gunicorn-socketio: Gunicorn-socketio is a Gunicorn worker class that allows for seamless integration of Socket.IO, a real-time web socket library, with gUnicorn. It enables bidirectional communication between the server and clients, making it possible to build interactive and real-time applications. Gunicorn-socketio extends the capabilities of gUnicorn, providing a robust solution for handling web socket connections.
  • Supervisor: Supervisor is a process control system that helps manage and monitor gUnicorn processes. It provides a convenient way to start, stop, and restart gUnicorn workers, as well as handle log files and monitor their performance. Supervisor ensures the reliability and availability of gUnicorn servers by automatically restarting them in case of failures.

TOP 11 Facts about gUnicorn

Facts about
  • gUnicorn is a Python Web Server Gateway Interface (WSGI) HTTP server.
  • It is designed to be lightweight and highly scalable, making it suitable for deploying web applications with high traffic loads.
  • gUnicorn supports various web frameworks, including Django, Flask, Pyramid, and more.
  • One of the key features of gUnicorn is its ability to handle multiple simultaneous connections efficiently, thanks to its asynchronous worker model.
  • It uses pre-fork worker processes to achieve parallelism, which allows it to handle many requests concurrently.
  • gUnicorn is known for its stability and performance, making it a popular choice among developers for deploying Python web applications.
  • It has support for graceful restarts, allowing applications to be updated or reloaded without interrupting the serving of ongoing requests.
  • gUnicorn provides detailed error logging and debugging information, making it easier to troubleshoot issues in production environments.
  • It supports various configuration options, such as the number of worker processes, timeout settings, and logging configurations, providing flexibility for different deployment scenarios.
  • gUnicorn has a straightforward command-line interface, making it easy to start and manage the server.
  • It has a vibrant and active community of developers who contribute to its ongoing development and provide support through forums and online resources.

Hard skills of a gUnicorn Developer

Hard skills

Hard skills of a gUnicorn Developer:


  • Python: Proficient in Python programming language and its libraries.
  • Django: Experience with Django web framework for developing scalable web applications.
  • HTML/CSS: Knowledge of HTML and CSS for creating user-friendly web interfaces.
  • JavaScript: Familiarity with JavaScript and its frameworks for implementing interactive features.
  • SQL: Understanding of SQL and database management for data storage and retrieval.


  • RESTful APIs: Ability to design and develop RESTful APIs for seamless integration with other systems.
  • Version Control: Proficient in using Git or other version control systems for collaborative development.
  • Testing: Experience with unit testing and test-driven development to ensure code quality.
  • Linux: Familiarity with Linux operating system and command-line tools for server deployment and maintenance.
  • Performance Optimization: Skills in optimizing application performance and scalability.
  • Containerization: Knowledge of Docker and containerization for efficient deployment and scaling of applications.
  • CI/CD: Understanding of Continuous Integration and Continuous Deployment practices for streamlined development and deployment workflows.


  • Microservices Architecture: Proficient in designing and implementing microservices architecture for complex applications.
  • Cloud Technologies: Experience with cloud platforms like AWS or Azure for deploying and managing applications.
  • Scalability: Expertise in building scalable and high-performance systems to handle large user loads.
  • Security: Knowledge of secure coding practices and techniques to ensure application security.
  • Data Structures and Algorithms: Strong understanding of data structures and algorithms for efficient problem-solving.
  • Performance Monitoring: Skills in monitoring application performance and identifying bottlenecks for optimization.
  • DevOps: Familiarity with DevOps principles and tools for automating development and deployment processes.
  • Code Review: Ability to conduct code reviews and provide constructive feedback to team members.

Expert/Team Lead

  • Architecture Design: Ability to design and architect complex and scalable systems.
  • Leadership: Experience in leading and mentoring development teams to deliver high-quality software.
  • Project Management: Skills in managing project timelines, resources, and deliverables.
  • Technical Documentation: Proficient in creating comprehensive technical documentation for projects.
  • Performance Tuning: Expertise in fine-tuning application performance for optimal user experience.
  • Code Optimization: Ability to optimize code for efficiency and maintainability.
  • Problem Solving: Strong analytical and problem-solving skills to overcome technical challenges.
  • Collaboration: Experience in collaborating with cross-functional teams to achieve project goals.
  • Continuous Learning: Commitment to staying updated with the latest technologies and industry trends.
  • Communication: Excellent verbal and written communication skills for effective team collaboration and client interactions.
  • Code Review: Proficient in conducting thorough code reviews and ensuring code quality standards are met.

Pros & cons of gUnicorn

Pros & cons

6 Pros of gUnicorn

  • High Performance: gUnicorn is designed to be a high-performance web server that can handle a large number of concurrent connections efficiently.
  • Low Memory Usage: gUnicorn uses asynchronous workers to handle requests, which allows it to minimize the memory footprint required to handle multiple requests simultaneously.
  • Easy to Deploy: gUnicorn is easy to deploy and can be integrated with popular web frameworks like Django and Flask. It provides a straightforward configuration interface and can be easily scaled in a production environment.
  • Automatic Worker Management: gUnicorn automatically manages worker processes, allowing you to focus on writing your application code without worrying about handling multiple worker processes manually.
  • Graceful Restart: gUnicorn supports graceful restarts, which means that it can reload the worker processes without dropping any connections. This feature enables zero downtime deployments and helps in maintaining a smooth user experience.
  • Support for Asynchronous Workers: gUnicorn supports asynchronous workers, which allows it to handle long-running requests efficiently without blocking other requests. This feature is particularly useful in scenarios where your application needs to perform time-consuming operations.

6 Cons of gUnicorn

  • Python-Specific: gUnicorn is primarily designed for Python web applications. While it can be used with other programming languages, its features and optimizations are tailored towards Python applications.
  • Learning Curve: If you are new to gUnicorn or web server configuration in general, there may be a learning curve involved in understanding the different configuration options and optimizing it for your specific application.
  • Limited Load Balancing: While gUnicorn can handle a large number of concurrent connections efficiently, it has limited built-in load balancing capabilities. If you require advanced load balancing features, you may need to use additional tools or technologies in conjunction with gUnicorn.
  • Single Process Mode: By default, gUnicorn runs in a single process mode, which means it does not take full advantage of multi-core processors. However, this can be mitigated by running multiple instances of gUnicorn and using a load balancer.
  • Debugging: Debugging issues in gUnicorn can be challenging as it is a multithreaded server. Understanding the interactions between different worker processes and threads may require some expertise in debugging complex concurrent systems.
  • Resource Consumption: While gUnicorn is designed to be efficient, it still consumes system resources like CPU and memory. If you are operating in a resource-constrained environment, you may need to carefully monitor and optimize the resource usage of gUnicorn.

Soft skills of a gUnicorn Developer

Soft skills

Soft skills are essential for gUnicorn Developers to thrive and succeed in their roles. These skills complement their technical expertise and enable them to effectively collaborate, communicate, and adapt in a professional environment.


  • Active Listening: Ability to attentively listen and understand instructions, feedback, and requirements.
  • Effective Communication: Proficiency in conveying ideas, asking questions, and seeking clarification.
  • Time Management: Skill to prioritize tasks, meet deadlines, and efficiently utilize available time.
  • Teamwork: Capability to work collaboratively with fellow developers and contribute to group projects.
  • Problem-Solving: Aptitude to analyze issues, propose solutions, and seek assistance when needed.


  • Leadership: Ability to take charge of projects, guide junior developers, and provide mentorship.
  • Conflict Resolution: Skill to identify and resolve conflicts within the team or with stakeholders.
  • Adaptability: Flexibility to adjust to changing requirements, technologies, and project scopes.
  • Presentation Skills: Capability to deliver clear and engaging presentations to stakeholders.
  • Critical Thinking: Aptitude to analyze complex problems and devise innovative solutions.
  • Empathy: Ability to understand and empathize with the needs and perspectives of team members.
  • Networking: Proficiency in building professional relationships and expanding industry connections.


  • Strategic Thinking: Skill to align project goals with business objectives and plan accordingly.
  • Negotiation: Ability to negotiate contracts, project scopes, and resolve conflicts effectively.
  • Project Management: Capability to manage large-scale projects, allocate resources, and ensure timely delivery.
  • Mentorship: Dedication to guiding and mentoring junior and middle-level developers.
  • Client Management: Skill to manage client expectations, build rapport, and maintain long-term relationships.
  • Decision-Making: Aptitude to make informed decisions based on data, experience, and business needs.
  • Innovation: Ability to identify new technologies and trends and apply them to enhance development processes.
  • Stakeholder Management: Proficiency in managing relationships with stakeholders and addressing their concerns.

Expert/Team Lead

  • Strategic Planning: Skill to set long-term goals, define roadmaps, and drive organizational growth.
  • Team Management: Capability to lead and manage a team of developers, delegating tasks and ensuring productivity.
  • Business Acumen: Proficiency in understanding business requirements and aligning technology solutions with them.
  • Influence and Persuasion: Ability to influence decisions, gain buy-in, and advocate for technical solutions.
  • Thought Leadership: Aptitude to contribute to the industry through thought leadership, speaking engagements, and publications.
  • Conflict Management: Skill to address and resolve conflicts within the team and between stakeholders.
  • Continuous Learning: Dedication to staying updated with the latest technologies, trends, and best practices.
  • Risk Management: Proficiency in identifying and mitigating risks associated with projects and development processes.
  • Financial Management: Ability to manage project budgets, allocate resources effectively, and optimize costs.
  • Quality Assurance: Skill to ensure high-quality code, conduct code reviews, and implement quality control processes.
  • Collaboration: Capability to foster a culture of collaboration within the team and across departments.

How and where is gUnicorn used?

How and where
Case NameCase Description
1. High Traffic WebsitesgUnicorn is commonly utilized for high traffic websites, where it excels in handling a large number of simultaneous connections. With its asynchronous architecture and ability to efficiently process requests, gUnicorn ensures fast and reliable performance even under heavy load.
2. Real-Time ApplicationsgUnicorn is ideal for real-time applications that require instant data updates and low latency. It can handle WebSocket connections efficiently, making it suitable for chat applications, collaborative tools, and live streaming platforms.
3. Load BalancinggUnicorn can be used in conjunction with load balancers to distribute incoming requests across multiple worker processes or servers. This helps to evenly distribute the load and improve overall system performance, ensuring that no single worker process becomes overwhelmed.
4. Web APIsgUnicorn is commonly employed to serve web APIs due to its ability to handle multiple simultaneous connections and process requests quickly. It ensures smooth and efficient communication between clients and servers, making it a popular choice for building and scaling API-driven applications.
5. Microservices ArchitecturegUnicorn is well-suited for microservices architecture, where applications are broken down into smaller, independent services. Each microservice can be deployed with gUnicorn, allowing them to handle their own incoming requests and scale independently based on demand.
6. Content Management SystemsgUnicorn is often used in content management systems (CMS) to handle the high number of requests generated by website visitors. Its efficient request processing and ability to handle concurrent connections make it an excellent choice for CMS platforms, ensuring optimal performance and responsiveness.
7. Internet of Things (IoT) ApplicationsgUnicorn can be utilized in IoT applications to handle incoming requests from connected devices. Its ability to handle a large number of concurrent connections and process requests quickly makes it suitable for managing and processing data generated by IoT devices.
8. E-commerce PlatformsgUnicorn is commonly used in e-commerce platforms that experience high traffic and require fast response times. It ensures smooth and reliable performance, allowing online stores to handle a large number of concurrent users and process transactions efficiently.
9. WebsocketsgUnicorn is widely utilized for applications that utilize WebSockets for real-time communication. It efficiently handles WebSocket connections, enabling bidirectional communication between clients and servers in a scalable and efficient manner.

Let’s consider Difference between Junior, Middle, Senior, Expert/Team Lead developer roles.

Seniority NameYears of experienceResponsibilities and activitiesAverage salary (USD/year)
Junior Developer0-2 years– Assisting with basic coding and debugging tasks$50,000 – $70,000
Middle Developer2-5 years– Independently developing and implementing software components$70,000 – $90,000
Senior Developer5-8 years– Leading complex development projects$90,000 – $120,000
Expert/Team Lead Developer8+ years– Mentoring and guiding junior and middle developers$120,000 – $150,000

Cases when gUnicorn does not work

Does not work
  1. Insufficient system resources: gUnicorn is a high-performance web server that requires a certain amount of system resources to run smoothly. If your system is running low on memory or processing power, gUnicorn may struggle to handle incoming requests efficiently. It is important to ensure that your system meets the minimum requirements for running gUnicorn and has enough resources available to support its operation.
  2. Incompatible Python versions: gUnicorn is specifically designed to work with Python web applications. However, certain versions of gUnicorn may not be compatible with older or newer versions of Python. It is essential to check the compatibility of the gUnicorn version you are using with the Python version installed on your system. Upgrading or downgrading Python to a compatible version or using a different version of gUnicorn may be necessary in such cases.
  3. Configuration issues: gUnicorn relies on proper configuration to function correctly. If the gUnicorn configuration file is misconfigured or contains errors, it can lead to issues with the server. Common configuration problems include incorrect port settings, incorrect worker processes, or incorrect application paths. Double-checking the configuration file for any mistakes and ensuring that it aligns with the requirements of your application can help resolve such issues.
  4. Firewall or network restrictions: gUnicorn operates by binding to a specific port on your system and listening for incoming requests. If there are firewall rules or network restrictions in place that prevent access to the specified port, gUnicorn may not be able to receive incoming requests. It is necessary to review your firewall settings and network configuration to ensure that the required ports are open and accessible to gUnicorn.
  5. Inadequate logging and error handling: gUnicorn provides built-in logging and error handling mechanisms to aid in troubleshooting and identifying issues. However, if these logging and error handling features are not properly configured or utilized, it can make diagnosing problems more challenging. Ensuring that appropriate logging levels are set, error messages are captured, and log files are monitored can help in identifying and resolving issues with gUnicorn.

TOP 10 gUnicorn Related Technologies

Related Technologies
  • Python

    Python is a widely-used programming language known for its simplicity and readability. It offers extensive libraries and frameworks, making it a popular choice for gUnicorn software development.

  • Flask

    Flask is a lightweight web framework in Python that provides essential tools and libraries for building web applications. Its simplicity and flexibility make it a popular choice for gUnicorn development projects.

  • Django

    Django is a high-level Python web framework that follows the model-view-controller (MVC) architectural pattern. It provides a robust set of features for rapid development and scalability, making it an excellent choice for gUnicorn software development.

  • JavaScript

    JavaScript is a versatile programming language that enables interactive and dynamic web page development. It is often used in conjunction with Python and gUnicorn to enhance user interfaces and add interactivity to web applications.

  • React

    React is a JavaScript library for building user interfaces. It allows developers to create reusable UI components, making the development process more efficient. React is a popular choice for gUnicorn software development due to its performance and flexibility.

  • SQL

    SQL (Structured Query Language) is a language used for managing and manipulating relational databases. It is essential for storing and retrieving data in gUnicorn software development projects that require database integration.

  • Git

    Git is a distributed version control system that helps developers manage their source code. It enables collaboration, code versioning, and tracking changes, making it an invaluable tool for gUnicorn software development teams.

TOP 11 Tech facts and history of creation and versions about gUnicorn Development

Facts and history
  • gUnicorn, short for Green Unicorn, is a Python Web Server Gateway Interface (WSGI) HTTP server.
  • It was created in 2009 by Benoit Chesneau, a French software engineer and open-source contributor.
  • gUnicorn is built using the pre-fork worker model, which allows it to handle multiple concurrent connections efficiently.
  • The server is known for its simplicity, high performance, and ability to handle thousands of simultaneous requests.
  • gUnicorn supports various web frameworks, including Django, Flask, Pyramid, and more.
  • It implements the WSGI specification, which provides a standardized interface between web servers and web applications.
  • gUnicorn’s design focuses on scalability, making it suitable for deploying applications in production environments.
  • As an open-source project, gUnicorn has a large and active community of developers contributing to its development and improvement.
  • Over the years, gUnicorn has undergone several version updates, with each release introducing new features, bug fixes, and performance optimizations.
  • One of the notable features of gUnicorn is its ability to gracefully reload the workers, allowing for zero-downtime deployments.
  • gUnicorn has gained widespread popularity and is widely used in production environments to serve Python web applications.

Join our Telegram channel


Talk to Our Talent Expert

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