Maintain, Improve, and Extend the Life of Your Business Software

Your business software is an important investment. But as technologies evolve, business requirements change, and applications age, maintaining that software becomes increasingly important.

Nexus Software Systems provides professional software maintenance services to help businesses keep their existing applications reliable, efficient, and aligned with their changing needs.

With decades of software engineering experience, we specialize in maintaining, troubleshooting, enhancing, and modernizing custom software applications, including C++, Go, Microsoft/.NET, and established business software systems.

Whether you need to resolve software defects, improve application performance, update existing functionality, or find an experienced development team to maintain an application originally built by another developer, Nexus can help.

Our experience in custom software development allows us to understand, maintain, and improve applications built around unique business requirements.

Have existing software that needs attention?


Comprehensive Software Maintenance Services

Software maintenance involves much more than fixing bugs. It includes improving existing functionality, adapting applications to changing technologies, optimizing performance, and extending the useful life of business-critical systems.

Nexus provides software maintenance and enhancement services tailored to your application’s technology, architecture, and business requirements.

Corrective Software Maintenance and Bug Fixing

Software defects can affect productivity, disrupt business operations, and create frustrating experiences for users.

Our developers identify and correct software defects, application errors, and unexpected behavior. We work to understand the underlying causes of problems and implement solutions that restore application functionality and reliability.

Our corrective maintenance services include:

  • Troubleshooting and debugging existing applications.
  • Identifying and correcting software defects.
  • Resolving application errors and unexpected behavior.
  • Investigating performance and stability issues.
  • Correcting database and application logic problems.

Software Enhancements and New Features

Business requirements change over time. Your software should be able to evolve with them.

Rather than replacing an entire application, you may be able to extend its capabilities through targeted enhancements and new functionality.

Nexus helps businesses improve existing applications by:

  • Adding new features and capabilities.
  • Improving existing workflows.
  • Enhancing application interfaces.
  • Developing additional software modules.
  • Integrating existing applications with other systems.
  • Modifying software to accommodate new business requirements.

C++ Software Maintenance

Nexus has extensive experience developing and maintaining C++ applications, including high-performance software, embedded applications, and legacy systems.

Our C++ maintenance expertise includes:

  • Maintaining existing C++ applications.
  • Troubleshooting and debugging C++ software.
  • Improving application performance and efficiency.
  • Refactoring and improving existing code.
  • Maintaining embedded and hardware-specific software.
  • Updating and enhancing established C++ systems.

Whether you have a mature C++ application that needs ongoing support or an existing system that requires improvements, our developers can help.

Learn more about our C++ software development services.

Go Software Maintenance and Development

Go (Golang) is an excellent choice for building efficient, scalable, and reliable software. Nexus has significant experience using Go to develop modern software applications and backend systems.

We can help maintain and enhance existing Go applications, troubleshoot problems, improve performance, and implement new functionality.

Our Go software maintenance capabilities include:

  • Maintaining and enhancing existing Go applications.
  • Troubleshooting and debugging Go software.
  • Improving application performance and scalability.
  • Maintaining APIs and backend services.
  • Updating application functionality.
  • Integrating Go applications with databases and other systems.

Whether you need help maintaining an existing Go application or extending its capabilities, Nexus can provide experienced software engineering support.

Microsoft and .NET Application Maintenance

Business applications built using Microsoft technologies often require ongoing maintenance as operating environments, frameworks, databases, and business requirements evolve.

Nexus has extensive experience with Microsoft software development and application integration.

Our services can include:

  • Maintaining existing Microsoft-based applications.
  • .NET application enhancements and modifications.
  • Application troubleshooting and debugging.
  • Database and application integration improvements.
  • Compatibility and technology upgrades.
  • Application performance improvements.

Learn more about our .NET application development services.

Legacy Software Maintenance

Many businesses depend on software developed years ago. These applications may contain important business logic and support processes that would be expensive or disruptive to replace.

However, aging software can become increasingly difficult to maintain as technologies change and original developers become unavailable.

Nexus helps businesses maintain and improve established software systems.

We can evaluate existing applications, identify areas requiring attention, resolve problems, and implement improvements that help extend their useful life.

Our legacy software services include:

  • Maintaining existing and legacy applications.
  • Analyzing and improving existing source code.
  • Resolving technical problems and software defects.
  • Updating application functionality.
  • Improving performance and maintainability.
  • Planning and implementing software modernization.

When an older application needs more substantial improvements, legacy software modernization may provide an alternative to complete replacement.

Application Integration and Database Maintenance

Business applications frequently depend on databases, external services, and other software systems.

Nexus helps maintain and improve these connections to ensure that applications continue to exchange information and support business operations.

Services include:

  • Database-related application maintenance.
  • API and software integration improvements.
  • Data conversion and migration.
  • Application interface development.
  • Troubleshooting data processing problems.
  • Improving communication between existing systems.

Our system integration services can also help businesses connect existing applications, databases, and third-party systems.

Software Performance and Reliability Improvements

As applications grow and business usage changes, performance problems can emerge.

We help identify opportunities to improve application efficiency, responsiveness, and reliability.

Depending on the application, improvements may include code optimization, database performance analysis, architectural improvements, and resolving resource-intensive processes.

Appropriate testing is also important when maintaining existing software. Learn more about our software testing services.

Software Security and Maintenance

Maintaining software also means addressing security concerns as technologies and threats evolve.

Depending on the application, maintenance may involve updating vulnerable dependencies, addressing security defects, improving access controls, and reviewing application configurations.

Learn more about our cybersecurity services.


What Technologies and Applications Does Nexus Maintain?

Our software maintenance expertise is grounded in technologies and platforms we have experience developing and supporting.

C and C++ Applications

Our experience includes desktop applications, embedded systems, device drivers, high-performance computing, and other specialized software.

Go Applications

We have experience using Go to develop efficient, scalable applications and backend services. We can help maintain existing Go applications and implement enhancements as your requirements evolve.

Microsoft Technologies

We work with Microsoft-based application development and integration technologies, including .NET and related platforms.

Web Applications

Our web application development experience includes technologies such as PHP, Go, Java, Node.js, Python, and Ruby.

Custom Business Applications

We also maintain and improve custom applications supporting:

  • Customer relationship management (CRM).
  • eCommerce and online business operations.
  • Data processing and analytics.
  • Business workflow and process management.
  • Enterprise application integration.
  • Specialized industry applications.

Not sure whether we support your application’s technology? Contact us to discuss your existing system and maintenance requirements.


Why Choose Nexus for Software Maintenance?

Maintaining business software requires more than an ability to fix occasional programming errors. It requires an understanding of software architecture, application functionality, programming technologies, databases, and the business processes that depend on the software.

Nexus Software Systems brings decades of software engineering experience to every engagement.

Decades of Software Development Experience

Founded in 1985, Nexus has developed and delivered more than 10,000 applications. Our experience spans multiple programming languages, platforms, and business industries.

Established Expertise in C++, Go, and Microsoft Technologies

We have extensive experience developing and maintaining applications built with C++, Go, Microsoft technologies, and other established software platforms.

Experience with Existing and Legacy Applications

We understand that replacing an established application isn’t always practical. We can help maintain, improve, and extend existing software investments.

Custom Software Engineering

We understand that every application has its own architecture, functionality, and technical requirements. Our approach focuses on the actual needs of your software and business.

Long-Term Development Partnership

Software maintenance is an ongoing responsibility. We can work with your business as application requirements change and new improvements become necessary.

Collaborative Development Process

We believe in communication and collaboration. Our development philosophy emphasizes keeping customers informed and encouraging their involvement throughout the development process.


Our Software Maintenance Process

We take a structured approach to understanding and maintaining existing software.

1. Initial Consultation

We discuss your application, its technology, current problems, and your business objectives.

2. Application Assessment

We review the available application information, source code, architecture, technologies, and areas requiring attention.

3. Maintenance Recommendations

Based on our findings, we identify potential corrections, improvements, enhancements, and upgrades.

We discuss priorities, technical requirements, and estimated costs before proceeding.

4. Implementation and Testing

Our developers implement the agreed changes and test the affected functionality to help ensure that improvements work as intended.

5. Continued Maintenance and Improvements

As your business and software requirements evolve, we can help implement additional improvements, resolve new problems, and extend application functionality.


The Business Benefits of Professional Software Maintenance

Software maintenance helps protect your existing technology investment while ensuring that applications continue to support your business.

Benefits include:

  • Protecting your software investment: Extend the useful life of existing applications rather than automatically replacing them.
  • Improving reliability: Address defects and technical issues that can disrupt business operations.
  • Maintaining compatibility: Adapt applications to evolving operating environments and technologies.
  • Improving performance: Identify and resolve application inefficiencies.
  • Supporting business growth: Add functionality as your business requirements change.
  • Reducing technical risk: Identify and address maintenance concerns before they become larger problems.
  • Preserving business knowledge: Retain valuable functionality and business logic contained in established applications.

Frequently Asked Questions About Software Maintenance

Can Nexus maintain software developed by another company?

Yes, we can evaluate existing applications developed by other software companies or development teams. The feasibility of providing maintenance depends on the application’s technology, architecture, source code availability, documentation, and overall condition.

Our initial discussions help determine whether your application is a good fit for our technical expertise.

What types of software applications does Nexus maintain?

Our established expertise includes C and C++ applications, Go, Microsoft and .NET technologies, web applications, embedded software, and custom business applications.

We also have experience with PHP, Java, Node.js, Python, and Ruby web application development.

Can you fix bugs in an existing application?

Yes. We can investigate application errors, identify software defects, and implement corrections where the underlying technology is within our expertise.

Can you add new features to existing software?

Yes. We can extend existing applications by adding functionality, improving workflows, developing additional modules, and integrating other systems.

Do you maintain legacy software?

Yes. Legacy application maintenance is an important part of our software engineering capabilities, particularly for established applications that businesses want to continue using.

We can evaluate existing software and recommend maintenance, enhancements, or modernization options.

Do I need to have the original source code?

Source code is generally important for maintaining and modifying custom software. However, the requirements depend on the application and the work involved.

We can discuss what information and materials are available during the initial consultation.

How much do software maintenance services cost?

Software maintenance costs depend on several factors, including application complexity, programming technologies, the condition of the existing code, the type of maintenance required, and the amount of development work involved.

After discussing your application and requirements, we can help determine the scope of work and provide an estimate.

Can Nexus provide ongoing software maintenance?

We can discuss ongoing maintenance and development arrangements based on your application’s requirements, technology, and anticipated workload.

How do I get started?

Contact Nexus Software Systems and tell us about your application, the technologies it uses, and the problems or improvements you would like to address.

We’ll discuss your requirements and determine whether our software engineering expertise is a good fit.


Get Expert Help Maintaining Your Software

Your existing software may represent years of development, business knowledge, and investment. Replacing it isn’t always necessary.

With the right software maintenance and development expertise, you can resolve technical problems, improve application functionality, and continue building on what you already have.

Nexus Software Systems has been helping businesses develop and improve software since 1985.

Let us help you maintain and improve your existing applications. Or call us at 888-211-7806 to discuss your software maintenance requirements.