Application modernization services - N-iX

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N-iX modernizes legacy applications, data platforms, and infrastructure, cutting maintenance costs and improving system quality. Our pilots have raised engineering velocity by baseline 30%, measured before and after on production code.
N-iX helps organizations modernize legacy software, applications, infrastructure, and data platforms, so they meet today's demands for speed, scale, and security. AI stands at the core of our modernization approach, cutting timelines and costs by up to 70% compared to traditional refactoring. Every modernization project at N-iX follows AI-DLC, an AI-driven development life cycle where AI is a central collaborator. While AI handles the heavy lifting at every stage, our team still makes key decisions, so you modernize faster, without losing control or quality.
With over 2,400 AI-augmented tech specialists and 24 years of experience, we cover the full software engineering lifecycle. Our expertise spans software architecture design, bespoke engineering, cloud, DevOps & SRE services, data analytics, AI and Machine Learning, embedded software and IoT, and more. N-iX application modernization services will help you to reduce technical debt, revamp outdated tech stacks, strengthen security, integrate modern tools, and ship features faster than your current architecture allows.
velocity gain via AI delivery
cutover-related production outages in the last 10 programs
active certifications across Microsoft, AWS, Google Cloud, Palantir, and other tech partners
completed modernization projects
Hundreds of applications exist with no single inventory or owner. Gartner estimates 30-40% of them qualify as shadow IT.
Built a single inventory, a unified architecture and platform, and a governance framework
Business rules are buried in legacy code with no clear owner. Industry benchmarks show that reverse-engineering of 10K lines takes up to six weeks.
Reconstructed and documented all business rules, locked in by a test suite before writing any code
When engineers leave the company, without documenting how the system works, that knowledge goes with them.
Cut UI scaffold generation from three months to one week, so knowledge no longer lives with individuals
This is the highest-risk path to modernization we see, as full rebuilds can run for years, without shipping value.
Shipped value continuously, cutting release cycles from bi-weekly to every three days
Without FinOps discipline, hardware, licensing, and multi-cloud spend compounds. As a result, lift-and-shift migrations often end up costing 2-3x more than staying on-premises.
Cut infrastructure costs by up to 30% and made 97% of cloud spend visible
Core platforms often run on end-of-life versions with little or no test coverage. As a result, enterprises spend up to 60–80% of their IT budget just keeping legacy applications running.
Built 21K automated tests and 70.2% line coverage before the upgrade, while the client’s team kept shipping new features.
Prioritize modernization investment by business value, risk, and cost
Business challenge: You lack a complete picture of your application estate and the business logic that drives it. As a result, it is unclear which systems to modernize first and what that will cost.
Client proof: N-iX helped a leading transportation provider in North America assess 29 core applications and establish a single application inventory, a unified architecture, and a governance framework. Within two years, the company decommissioned 19+ core platforms and reduced maintenance costs by 30%.
Modernize the applications that hold the business back
Business challenge: Your core applications depend on end-of-life frameworks and on knowledge that few people still hold. Consequently, most of the IT budget goes to keeping them running, and new capability is delayed.
Client proof: During our partnership with a leading industrial company in Germany, we migrated its core transportation planning system from an end-of-life C++/.NET desktop application to modern .NET and Blazor. As a result, the unsupported stack was retired in 9 months.
Migrate legacy applications to the cloud without increasing infrastructure cost
Business challenge: Your applications run on infrastructure that is costly to maintain and hard to scale. Moving them to the cloud without a cost-controlled plan often increases spending instead of reducing it.
Client proof: Working with Lebara, we migrated its on-premises environment to Azure and AWS and modernized its ERP and CRM systems. The engagement helped Lebara cut infrastructure costs by about 30%.
Transform the cloud platform your applications run on
Business challenge: Your cloud environment has grown without a unified platform. Architecture, delivery, infrastructure, and cost control are managed separately, which limits scale, security, reliability, and cost efficiency.
Client proof: For Lebara, we re-platformed the integration layer that connects its business systems. Our experts also put cost visibility in place across its multi-cloud environment, covering 97% of cloud spend.
Sustain quality, security, and performance as your applications evolve
Business challenge: Applications that are not continuously maintained accumulate technical debt, outdated components, and security exposure. Over time, this erodes quality and performance and increases operating cost.
Client proof: Working with a P2P lending platform, we grew automated test coverage from about 500 to 10,000+ tests.
Housing management leader cuts bugs reaching production 60% through AI-driven QA modernization
115% revenue growth in healthcare with modernized digital solutions