Performance Developers

Recruit High-Performing Developers

Maintaining optimum performance levels is critical for all software, including web, mobile, desktop, and cloud applications. Even a slight lag or delay experienced by users while performing tasks can result in disappointment. If not resolved promptly and comprehensively, it can negatively impact a company’s reputation.

When developing next-generation online applications, mobile apps, desktop software products, and backend systems, it is crucial to prioritize performance. Every stage, component, and application module must be tailored to function at its best to ensure the success of the system.

To ensure optimal performance levels, it is crucial to hire developers skilled in performance who can recognize and eliminate performance obstacles. These performance developers must have the expertise to guarantee that every aspect of your application functions swiftly and smoothly.

The key question is what is causing the performance lag?

Software performance is a crucial aspect of the software development life cycle. Studies have revealed that numerous performance problems are caused by inadequate coding methods, such as using an additional loop or an inefficient algorithm. Poor coding practices can trigger performance bottlenecks that may harm the user experience and potentially diminish the software’s worth. Hence, software developers should be mindful of how their coding methods might impact software performance.

This is not to suggest that application developers are negligent or incapable of producing high-performance software.

During the construction of an application, seasoned software developers will make educated predictions about the essential modules, data structures, and algorithms. Nevertheless, such predictions can sometimes result in a decline in the overall quality of the program they’ve developed.

Sometimes, it’s not the actual code that affects system performance, but how the code reacts to a specific condition, event, or dataset. This can pose a challenge for Quality Assurance Engineers and Testers when it comes to detecting such shortcomings.

It is feasible that other factors could impede performance. Because external Application Programming Interfaces (APIs) and libraries just provide a product interface, there is no way to gain insight into the complexities of product functionality.

Why do you require Performance Developers?

There are numerous potential causes that can lead to a decrease in application performance. Therefore, it is crucial to employ performance developers who have the requisite qualifications and skills to consistently identify and resolve any problems related to software performance.

Take, for example, an airline booking service that provides passengers with the ability to perform numerous tasks such as buying tickets, checking in digitally, selecting seats, adding baggage, redeeming frequent flyer points, and many others. Considering the extensive development effort required to make this system available via various channels, it’s easy to grasp the project’s complexity.

  • Leading desktop browsers on all major platforms.
  • The browser of every mobile device.
  • Applications for both Android and iOS platforms.
  • Internet services for data aggregation systems.
  • The desktop computer of the registrar.
  • Responsible for the airport’s self-service check-in kiosks.
  • Applications developed solely for the use of flight crew and ground employees.

Additionally, all of this software must be compatible with the airline’s pre-existing back-end systems.

To create such an ecosystem, a large team of application developers with expertise in each technology is required.

In such a highly competitive environment, even a single day’s delay is unacceptable. Allowing for weeks of delays is out of the question. Therefore, it’s crucial that the software is developed correctly in the first attempt, without the need for extensive revisions, as this would consume precious time that could be directed towards other aspects of the project.

Useful Resources and Technologies for Performance-Based Software Designers

Several resources are available to assist developers in their endeavor to develop faster and more efficient software.

  1. Evaluations of Stress, Load and Performance

    Application performance assessment is a comprehensive term that comprises tests such as performance testing, load testing and stress testing. Through these tests, the efficiency of a software program is evaluated under various conditions or levels of use or demand. Several metrics are used to evaluate the performance of an application with different numbers of users, including CPU usage, CPU activity, memory usage, page faults, instruction execution time, and garbage collector usage.
  2. Tools for Performance Assessment

    By profiling at a more nuanced level, it’s possible to gain insights into the performance of a single logical process, such as saving a record, making an online payment, or querying a customer file, instead of evaluating the entire transaction. Conventional performance metrics like CPU and memory usage are used to analyze only a small portion. Further scrutiny is focused on elements like query execution plans, class instances, method call times, function call stacks, and so on.
  3. Caching Resources

    Content Delivery Networks (CDNs) are a powerful tool for performance-based developers since they can cache frequently accessed and static elements closer to the user, thereby lowering the load on the system. In addition, edge computing is a tactic that can be utilized to enhance user experience, as it enables the storage of data relevant to a specific geographic region on servers located in proximity to the users.
  4. Collaborating Remotely

    After being informed that the results will be sent to them in due course, the user may safely terminate the session. This enhances the level of service provided to the end-users while also increasing efficiency. To achieve this, the task may be divided into smaller, more manageable segments and tackled consecutively.
  5. Maintenance

    To guarantee optimal performance of your application, it’s crucial to establish a regular maintenance routine consisting of tasks such as clearing the server cache, deleting database logs, and reclaiming unassigned memory. Furthermore, your system architecture should be structured to enable automatic maintenance. Doing so will help reduce the amount of time and resources expended on manual upkeep.

The Roles and Responsibilities of Performance Builders

A Performance Developer is a software expert who collaborates closely with all members of the software development team, including business analysts, programmers, quality assurance specialists, system administrators, database administrators, and network administrators. They possess the necessary technical skills and knowledge to create various web applications, mobile applications, online services, and distributed desktop applications for a diverse range of industries and domains.

Their main responsibility is to identify and resolve any hindrances that may impede the functioning of the program under load.

  • They employ performance engineering and agile development methodologies from the outset of the development process.
  • They must integrate code for performance review in the application’s source code to enable real-time monitoring and troubleshooting.
  • The team recognises that performance issues typically stem from interdependent components. Hence, they actively seek solutions to partition these components, aiming to improve the overall system’s performance.
  • Performance engineers frequently seek methods to transition from synchronous to asynchronous communication channels.
  • Performance-focused developers employ advanced profilers to scrutinise the code in great detail.
  • During integration, they subject the merged codebase to both traditional load testing and comprehensive performance benchmarking.
  • Optimising algorithms and data structures is a key priority across all components of the program.
  • They work in partnership with database builders to improve performance for the most frequently used queries.

Fortunately, many issues that impede an app’s performance can be resolved with the support of performance engineers. Engaging performance developers with the requisite qualifications, educational background, and proficiency allows you to prevent such problems from the start, enabling you to focus on crafting an exceptional product.

Role Description


To be recognised as a Performance Developer, candidates must demonstrate that they can:

  • Develop and deploy tools to identify areas where the entire system is experiencing a slowdown.
  • Enhance code performance by modifying the data structures, algorithms, and interactions of the different components.
  • Verify that you’re utilising localised resource caching, asynchronous communication, and APIs for your microservices.
  • Cache data such as JavaScript, CSS, and images through a content delivery network.
  • Help with database creation, query optimisation, performance fine-tuning, and transaction processing time reduction.
  • Enhance scalability by adjusting the network and data transfer rate.
  • Bundling files together can improve performance.
  • “Minifying” your code or data files can reduce their size.
  • Switch to using icon-based typefaces instead of image-based icons.


A Performance Developer is a senior Software Engineer who possesses a broad knowledge of various technologies and disciplines beyond their specialisation. They participate in all phases of the software development process, from the concept stage to the program’s final deployment and ongoing maintenance.

To succeed as a Performance Developer, you must possess a diverse array of skills, which may include but are not limited to:

  • Mastery of algorithm design and data structures.
  • Thorough understanding of performance, load, and stress testing methodologies.
  • Considerable experience with application profiling tools.
  • Proficient in enhancing database performance.
  • Proficiency in every aspect of software development, from code writing to testing and maintenance.
  • Proficiency in developing asynchronous applications and microservices creation as discussed here.

Important Points to Remember for the Performance-Based Programmer

  • Developers who concentrate solely on speed are necessary for high-performance design.
  • A Performance Developer is accountable for enhancing and monitoring the performance of an application. This involves writing efficient code, optimising files, decoupling components, and caching data to optimise the application speed.
  • Having expertise in queries, component optimisation, algorithms, and data structures is necessary.
  • A Performance Developer should be well-informed about load testing and code profiling.
  • Collaboration among Performance Developers is crucial for the entire application development process.

Field of Expertise

Works is a specialist in technology recruitment for remote tech engineers in several industries. We offer comprehensive HR services covering all aspects of overseas employee and freelancer recruitment and onboarding, including compliance, taxation, selection, and invoicing. Our objective is to assist you in integrating the top remote developers into your team to propel your technical projects and critical technology initiatives.

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What makes Works Performance Developers different?
At Works, we maintain a high success rate of more than 98% by thoroughly vetting through the applicants who apply to be our Performance Developer. To ensure that we connect you with professional Performance Developers of the highest expertise, we only pick the top 1% of applicants to apply to be part of our talent pool. You'll get to work with top Performance Developers to understand your business goals, technical requirements and team dynamics.