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Roman F., PHP Engineer

Last Updated: 5 Mar 2024
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- Experienced Software Engineer with 8 years of commercial experience in demanding environments, focused on producing cutting-edge systems for businesses. - Skilled in infrastructure cost optimization, Kubernetes, and Terraform. - Proficient in PHP, JavaScript, Golang, and various databases such as MySQL, PostgreSQL, and MongoDB. - Extensive experience with Amazon Web Services (AWS) and containerization technologies like Docker. - Strong background in computer science with a Master's degree in Computer Science. - Familiar with Agile and Scrum methodologies, as well as software development practices and SDLC. - Excellent communication skills and fluent in Ukrainian with advanced English proficiency.

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Oleksandr D., Android Engineer

Rivne, Ukraine
Last Updated: 4 Jul 2023

- Experienced Android Engineer with 6+ years in Java and Kotlin app development. - Proficient in Android development frameworks like Retrofit and Room (Android Jetpack). - Expertise in Clean Architecture, SOLID, MVVM principles, REST API, and HTTP. - Skilled in project management using Atlassian JIRA, Confluence, and Agile methodologies. - Upper intermediate English - Available ASAP

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Serhii B., .NET Software Engineer

Kyiv, Ukraine
Last Updated: 4 Jul 2023

- A software engineer with 10+ years of experience in the IT industry who builds background services and APIs that are reliable and robust. - Skilled in C#, .NET Core, Apache Kafka, PostgreSQL, Docker, and Kubernetes, and know how the Windows operating system works internally. - Has worked with high-load microservices for the last 3 years and has experience building backend orchestrators. - Has experience working in both startup and corporate environments. - Has expertise in designing features, working closely with solution architects, and leading teams to improve the maintainability, scalability, and reliability of projects. - Upper-Intermediate English.

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Sciapan R, Scala and Java Software Engineer

Last Updated: 4 Jul 2023

- 5+ years of experience in IT - Upper-intermediate English - Available ASAP

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Yehor Sh., Java Software Engineer

Last Updated: 4 Jul 2023

- 5 years of experience in the IT industry working with Java; - Experience working with banking and financial projects, fintech sphere; - Good abilities with SQL, MySQL, PostgreSQL, and RabbitMQ; - Experience with AWS and Google API; - Good knowledge of C++ and JavaScript; - Good abilities working with PayPal API; - Deep skills working with Docker; - Have experience in programming Spring Framework; - Practice with Elasticsearch (Kibana); - Upper-Intermediate English.

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

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Henry Akwerigbe
Henry Akwerigbe
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 🙌🏽.
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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.
Владислав «Sheepbar» Баранов
Владислав «Sheepbar» Баранов
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Yanina Antipova
Yanina Antipova
Хочу виразити велику подяку за таку швидку роботу по підбору двох розробників. Та ще й у такий короткий термін-2 дні. Це мене здивувало, адже ми шукали вже цілий місяць. І знайдені кандидати нам не підходили Це щось неймовірне. Доречі, ці кандидати працюють у нас і зараз. Та надать приклад іншим працівникам. Гарного дня!)
Наталья Кравцова
Наталья Кравцова
I discovered an exciting and well-paying project on Upstaff, and I couldn't be happier with my experience. Upstaff's platform is a gem for freelancers like me. It not only connects you with intriguing projects but also ensures fair compensation and a seamless work environment. If you're a programmer seeking quality opportunities, I highly recommend Upstaff.
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.

Hire HTTP Developer as Effortless as Calling a Taxi

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FAQs about HTTP Development

How do I hire a HTTP developer? Arrow

If you urgently need a verified and qualified HTTP developer, and resources for finding the right candidate are lacking, UPSTAFF is exactly the service you need. We approach the selection of HTTP 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 HTTP developers? Arrow

Undoubtedly, there are dozens, if not hundreds, of specialized services and platforms on the network for finding the right HTTP 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 HTTP 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 HTTP 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 HTTP 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 HTTP 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 HTTP 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 HTTP 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 HTTP 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.

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Table of Contents

Cases when HTTP does not work

  1. Server Unavailability: One of the most common reasons for HTTP not working is when the server hosting the website or application is not available. This can happen due to various reasons such as server maintenance, hardware failure, or network issues. When the server is down, users will not be able to access the website or application via HTTP.
  2. Firewall Restrictions: In some cases, firewalls may be configured to block HTTP traffic. Firewalls are designed to protect networks from unauthorized access and can be set up to allow or deny specific types of traffic. If HTTP traffic is blocked by the firewall, users will not be able to establish a connection to the server.
  3. Network Connectivity Issues: HTTP relies on a functioning network connection between the client and the server. If there are issues with the network infrastructure such as broken cables, router misconfiguration, or DNS problems, HTTP communication may be disrupted. This can result in websites or applications not loading or experiencing slow performance.
  4. Incorrect URL: HTTP requests are made using Uniform Resource Locators (URLs) to specify the location of the requested resource. If the URL is typed incorrectly or contains errors, the HTTP request may fail. This can happen if there are typos, missing or extra characters, or incorrect formatting in the URL.
  5. Protocol Mismatch: HTTP operates on a specific protocol version, such as HTTP/1.1. If there is a mismatch between the protocol version supported by the client and the server, the HTTP communication may not work. This can occur when the client and server are using different protocol versions or when a proxy server is involved in the communication.
  6. Server Configuration Issues: HTTP servers need to be correctly configured to handle incoming requests. If the server configuration is incorrect or misconfigured, it can lead to HTTP not working properly. This can include issues such as incorrect port settings, virtual host misconfiguration, or improper handling of HTTP methods.
  7. Content Restrictions: In some cases, access to certain websites or resources may be restricted by content filters or parental controls. These restrictions can be imposed at the network level, by internet service providers, or through software installed on the client device. If a website or resource is blocked by content restrictions, HTTP requests to access them will be denied.

What are top HTTP instruments and tools?

  • cURL: cURL is a command-line tool and library for transferring data with URLs. It was first released in 1997 and is widely used for making HTTP requests and retrieving data from web servers. cURL supports a range of protocols including HTTP, HTTPS, FTP, and more. It is known for its simplicity, versatility, and cross-platform compatibility.
  • Postman: Postman is a popular API development and testing tool that allows developers to make HTTP requests and analyze responses. It was first released in 2012 and has since gained a large user base. Postman provides a user-friendly interface, automated testing capabilities, and the ability to save and share collections of requests. It is widely used in the API development process.
  • Apache JMeter: Apache JMeter is a Java-based open-source tool for load testing and performance measurement of web applications. It was first released in 1998 and is still actively maintained and widely used today. JMeter supports various protocols, including HTTP, HTTPS, FTP, and more, and allows users to simulate different types of HTTP requests to test the performance and scalability of web applications.
  • Wireshark: Wireshark is a network protocol analyzer that allows users to capture and analyze network traffic. It was initially released in 1998 and has become one of the most popular network analysis tools. Wireshark can capture and dissect HTTP packets, providing insights into the communication between clients and servers. It is widely used by network administrators and security professionals for troubleshooting and analyzing network issues.
  • HTTPie: HTTPie is a command-line HTTP client that aims to provide a more user-friendly and intuitive alternative to cURL. It was first released in 2012 and has gained popularity among developers. HTTPie allows users to make HTTP requests with a simple and expressive syntax, making it easier to work with APIs. It also supports features like syntax highlighting, JSON support, and file uploads.
  • Fiddler: Fiddler is a web debugging proxy tool that allows users to capture, inspect, and manipulate HTTP traffic. It was first released in 2003 and has been widely adopted by developers and testers. Fiddler can intercept and decrypt HTTPS traffic, providing detailed information about requests and responses. It also offers features like session manipulation, performance testing, and script customization.
  • Charles Proxy: Charles Proxy is a web debugging proxy tool similar to Fiddler. It was first released in 2002 and has gained popularity among developers and testers. Charles Proxy allows users to capture and analyze HTTP and HTTPS traffic, including mobile app traffic. It provides features like request/response modification, bandwidth throttling, and network simulation, making it a versatile tool for debugging and testing web applications.

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

Seniority NameYears of experienceResponsibilities and activitiesAverage salary (USD/year)
Junior0-2 yearsAssisting in the development of software applications, debugging and fixing code issues, learning and applying programming languages and frameworks, collaborating with team members on assigned tasks, following coding standards and best practices.$50,000 – $70,000
Middle2-5 yearsDeveloping software applications independently, designing and implementing new features, conducting code reviews, debugging complex issues, collaborating with team members to meet project deadlines, participating in technical discussions and providing input on system architecture.$70,000 – $90,000
Senior5-8 yearsLeading development projects, mentoring junior developers, designing and implementing complex software systems, optimizing code performance, conducting performance testing, providing technical guidance and expertise, collaborating with cross-functional teams, contributing to the overall technical strategy of the organization.$90,000 – $120,000
Expert/Team Lead8+ yearsLeading and managing development teams, setting technical direction and standards, overseeing the entire software development lifecycle, conducting code reviews and ensuring code quality, collaborating with stakeholders to define project goals and requirements, providing guidance on architectural decisions, resolving complex technical challenges.$120,000 – $150,000+

TOP 10 HTTP Related Technologies

  • Python

    Python is a versatile and widely-used programming language for web development. It offers a vast ecosystem of libraries and frameworks like Django and Flask, making it suitable for building robust and scalable HTTP software.

  • JavaScript

    JavaScript is a client-side scripting language that plays a crucial role in web development. It enables dynamic and interactive web pages and is commonly used in conjunction with HTML and CSS to create powerful HTTP software.

  • Node.js

    Node.js is a server-side JavaScript runtime environment that allows developers to build scalable network applications. It has gained popularity for its ability to handle a large number of concurrent connections efficiently, making it ideal for HTTP software development.

  • Java

    Java is a widely-adopted programming language that offers a strong foundation for building enterprise-level HTTP software. It provides robustness, portability, and a wealth of libraries and frameworks like Spring MVC and Apache Struts.

  • Ruby

    Ruby is a dynamic, object-oriented programming language known for its simplicity and readability. It has a popular web framework called Ruby on Rails, which simplifies the development of HTTP software by emphasizing convention over configuration.

  • PHP

    PHP is a server-side scripting language specifically designed for web development. It powers numerous websites and offers a vast array of frameworks like Laravel and Symfony, making it a popular choice for developing HTTP software.

  • C#

    C# is a powerful programming language developed by Microsoft. It is widely used for building web applications using the ASP.NET framework, which provides a robust set of tools and libraries for HTTP software development.

How and where is HTTP used?

Case NameCase Description
1. Web BrowsingHTTP is the foundation of web browsing, enabling users to access websites and retrieve information. When you type a URL into your browser, HTTP is responsible for establishing a connection with the web server and sending a request for the desired webpage. It then receives the response from the server and renders the webpage, allowing you to browse the internet seamlessly.
2. File TransferHTTP is widely used for file transfer over the internet. With the support of HTTP, users can upload and download files from servers or cloud storage platforms. Popular examples include file-sharing websites, cloud storage services, and FTP (File Transfer Protocol) replacement solutions like HTTP-based file transfer. HTTP’s efficient handling of file transfer tasks has made it a go-to choice for various file-related operations.
3. API CommunicationHTTP plays a crucial role in facilitating communication between client applications and web servers through APIs (Application Programming Interfaces). APIs enable diverse applications to interact with each other and exchange data. HTTP provides a standardized protocol for making API requests and receiving responses, allowing developers to integrate different systems seamlessly. Many modern web services and platforms heavily rely on HTTP-based APIs for their functionalities.
4. Real-Time MessagingHTTP can be utilized for real-time messaging and communication applications. WebSocket, a protocol built on top of HTTP, allows for bidirectional communication between clients and servers. It enables real-time updates, instant messaging, and collaborative features in web applications. By leveraging HTTP and WebSocket together, developers can create interactive and responsive web experiences that support real-time communication.
5. Content DeliveryHTTP is at the core of content delivery networks (CDNs), which optimize the delivery of web content to users across the globe. CDNs use HTTP to distribute content efficiently by caching it in various server locations worldwide. When a user requests a webpage, the CDN delivers the content from the nearest server, reducing latency and improving overall performance. HTTP’s widespread adoption makes it an ideal choice for content delivery mechanisms.
6. Single Sign-On (SSO)HTTP-based protocols such as OAuth and OpenID Connect are widely used for implementing Single Sign-On (SSO) solutions. SSO allows users to authenticate once and gain access to multiple applications or services without the need for separate login credentials. HTTP-based SSO protocols enable secure and seamless authentication across different domains and platforms, simplifying the user experience and enhancing security.
7. Internet of Things (IoT) CommunicationHTTP can be leveraged for communication between IoT devices and web servers. IoT devices, such as sensors or smart devices, can use HTTP to send data to servers or retrieve instructions from them. With the ubiquity of HTTP support in web servers and its simplicity, it becomes an accessible choice for IoT developers to enable communication and data exchange between devices and web-based applications.

TOP 13 Facts about HTTP

  • HTTP stands for Hypertext Transfer Protocol.
  • It is the underlying protocol used for transferring data over the World Wide Web.
  • HTTP is an application layer protocol that operates on top of the TCP/IP protocol suite.
  • It uses a client-server model, where the client sends a request to the server, and the server responds with the requested data.
  • HTTP is a stateless protocol, which means that each request and response is independent of any previous requests or responses.
  • HTTP is based on a request-response architecture, where the client sends a request message to the server, and the server responds with a status code and the requested data.
  • HTTP supports various request methods, such as GET, POST, PUT, DELETE, etc., to perform different actions on the server.
  • The default port for HTTP is port 80.
  • HTTP is a text-based protocol, where messages are represented in plain text format.
  • HTTP messages consist of a start line, headers, and an optional message body.
  • HTTP supports various status codes to indicate the outcome of a request, such as 200 OK, 404 Not Found, 500 Internal Server Error, etc.
  • HTTP supports the use of cookies to maintain state information between multiple requests from the same client.
  • HTTPS (HTTP Secure) is a secure version of HTTP that uses encryption to protect the confidentiality and integrity of the data transmitted over the network.

Pros & cons of HTTP

6 Pros of HTTP

  • Efficiency: HTTP is a lightweight protocol that allows for quick and efficient communication between clients and servers. It is designed to minimize overhead and maximize performance.
  • Compatibility: HTTP is a widely supported protocol that is compatible with various platforms, operating systems, and devices. This makes it easy to build and maintain web applications that can be accessed by a large number of users.
  • Simplicity: HTTP has a simple and easy-to-understand syntax, making it accessible to developers of all skill levels. It follows a request-response model, where clients send requests to servers and receive responses in return.
  • Statelessness: HTTP is a stateless protocol, which means that each request and response is independent of any previous or future requests and responses. This simplifies server-side programming and allows for better scalability.
  • Caching: HTTP supports caching, which allows for the storage of frequently accessed resources on the client side. This reduces the need for repeated requests to the server, resulting in faster load times and improved performance.
  • Security: HTTP can be secured using HTTPS, which provides encryption and authentication mechanisms to protect the integrity and confidentiality of data transmitted over the network.

6 Cons of HTTP

  • Lack of Encryption: HTTP does not provide built-in encryption, which means that the data transmitted over the network is not inherently secure. This can expose sensitive information to potential eavesdropping or interception.
  • Plain Text Transmission: HTTP sends data in plain text format, which makes it susceptible to attacks such as packet sniffing. This can compromise the confidentiality and integrity of the transmitted data.
  • Limited Server Push: HTTP does not natively support server push, which means that the server cannot proactively send updates or notifications to clients. This can result in delays in receiving real-time information.
  • Performance Overhead: HTTP headers can add overhead to the communication between clients and servers, especially when dealing with large amounts of data. This can impact the overall performance of web applications.
  • Connection Limitations: HTTP uses a separate connection for each request, which can lead to increased latency when making multiple requests. This can be a bottleneck for applications that require frequent communication between clients and servers.
  • Vulnerability to Attacks: HTTP is vulnerable to various types of attacks, such as cross-site scripting (XSS) and cross-site request forgery (CSRF). These attacks can exploit vulnerabilities in web applications and compromise user data.

Soft skills of a HTTP Developer

Soft skills are essential for a successful career as an HTTP Developer. These skills go beyond technical expertise and help developers effectively communicate, collaborate, and adapt to changing circumstances. Here are the soft skills required at different levels of experience:


  • Effective Communication: Ability to clearly convey information and ideas to team members and stakeholders.
  • Problem Solving: Skill to identify and resolve issues that may arise during the development process.
  • Time Management: Capability to prioritize tasks and meet deadlines in a fast-paced environment.
  • Attention to Detail: Attentiveness to small details to ensure accuracy and quality in code.
  • Adaptability: Capacity to quickly learn new technologies and adapt to evolving industry trends.


  • Leadership: Ability to take ownership of projects and guide junior developers in completing tasks.
  • Teamwork: Aptitude to collaborate effectively with cross-functional teams to achieve common goals.
  • Critical Thinking: Skill to analyze complex problems and devise innovative solutions.
  • Client Management: Capability to understand client requirements and provide appropriate solutions.
  • Mentoring: Willingness to mentor junior developers and share knowledge and best practices.
  • Conflict Resolution: Ability to resolve conflicts and maintain a positive working environment.
  • Time Management: Proficiency in managing multiple projects and prioritizing tasks.


  • Strategic Thinking: Ability to align development initiatives with the overall business strategy.
  • Project Management: Skill to manage large-scale projects, including planning, budgeting, and resource allocation.
  • Client Relationship Management: Expertise in building and maintaining strong relationships with clients.
  • Decision Making: Capability to make informed decisions based on analysis and data.
  • Innovation: Aptitude to explore new technologies and implement innovative solutions.
  • Conflict Resolution: Proficiency in resolving complex conflicts and handling difficult situations.
  • Negotiation: Skill to negotiate contracts, timelines, and resources with clients and stakeholders.
  • Team Leadership: Ability to lead and inspire a team of developers towards achieving project goals.

Expert/Team Lead

  • Strategic Planning: Expertise in developing long-term strategies for the development team.
  • Business Development: Knowledge of identifying and pursuing new business opportunities.
  • Risk Management: Skill to identify and mitigate risks associated with development projects.
  • Resource Management: Capability to efficiently allocate and manage team resources.
  • Change Management: Aptitude to lead teams through organizational changes and transitions.
  • Collaboration: Proficiency in fostering collaboration and knowledge sharing within the team.
  • Technical Leadership: Ability to provide technical expertise and guidance to team members.
  • Continuous Improvement: Commitment to driving continuous improvement in development processes.
  • Strategic Partnerships: Skill to build and maintain strategic partnerships with external stakeholders.
  • Quality Assurance: Expertise in implementing quality assurance processes and standards.
  • Influence and Persuasion: Capability to influence and persuade stakeholders to adopt new ideas and approaches.

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