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App Development Modernization | DXC Technology

App Development and Modernization Services

Build what’s next. Modernize what matters. Assure quality at scale.


Complexities of today's enterprise applications

Building modern software solutions isn’t just about writing code—it’s about orchestrating cloud-native architectures, integrating APIs, enabling real-time data flows and ensuring flawless performance across devices. Similarly, modernizing legacy systems can be a complicated endeavor, requiring careful planning to correctly prioritize the process while maintaining critical business functions. Enterprises often lack the specialized skills and automation tools needed to manage the complexity involved in app development and modernization, which can result in projects running over time and over budget, and daily operations compromised.

DXC is skilled at handling the complexity involved in app development and modernization. We help enterprises design, build, modernize and assure the applications that run their businesses—combining engineering excellence with AI, automation and secure-by-design practices to accelerate time to value and drive business outcomes.

With our unmatched industry expertise, we deliver custom services and partner with you across the full application lifecycle—from ideation and cloud-native development to portfolio modernization and quality engineering—so you can innovate faster, reduce operational costs and risk, and deliver exceptional business impact and customer experiences. 

Our software development methods emphasize Lean portfolio management, DevSecOps automation, observability and compliance. Quality is validated continuously with functional integration, performance and security testing—aligned to real‑world usage and production behavior.


100% success rate
in mainframe migrations
2B+ lines of code
transformed in our modernization factory
700+
Codebases engineered annually

Our high-performing solutions

DXC brings three integrated service lines that you can adopt individually or as an end-to-end transformation program:

Two male software developers reviewing code at a screen, Software Development | DXC Technology

Software Development

Design and deliver cloud‑native, API‑first microservices‑based applications using DevSecOps and AI‑assisted engineering to move from idea to outcome faster—with security, observability and reliability built in.
Modern cloud server room, Application Modernization Services | DXC Technology

Application Modernization Services & Solutions

Unlock value from your existing portfolio by rehosting, re-platforming or rearchitecting to cloud, modernizing middleware and databases, and industrializing migrations through proven factories and tooling.
Quality engineers discussing QA in a meeting room, Quality Engineering | DXC Technology

Quality Engineering

Assure quality, performance and security with end‑to‑end quality engineering, AI‑powered automation and consumption‑based Testing‑as‑a‑Service (TaaS) that speeds releases without compromising user experience.

Our approach

AI-augmented engineering

We integrate AI platforms, automation frameworks and industry‑trained models across the SDLC to “shift left,” reduce defects and cycle time, and improve cost efficiency. 

Secure-by-design (DevSecOps)

Security is embedded from design through deployment with automated scanning, threat modeling and compliance tooling in every pipeline. 

Cloud native by default

We build on AWS, Microsoft Azure and Google Cloud using microservices, containers, serverless and event-driven architectures — with robust API and integration patterns. 

Industrialized delivery

Modernization factories, agile pods and global delivery provide repeatable methods to scale change while reducing risk and total cost of ownership. 

DXC Engagement Models: Tailored for your transformation

As part of our approach, DXC also offers adaptable models that align with your business goals — building new products, modernizing legacy systems, or assuring quality — so you can achieve faster outcomes with predictable results.

  • Product Engineering Squads: Cross‑functional agile pods (architects, engineers, designers, QEs) embedded with your teams.
  • Modernization Factory: Factory‑led migrations, refactoring and database/platform modernization at scale.
  • Testing-as-a-Service (TaaS): Consumption‑based model with standardized tools and processes to reduce cost and increase coverage.


Results at a glance

DXC delivers measurable results that transform your business:

  • Accelerated releases: Up to 50% faster with Lean‑Agile and DevOps practices.

  • Lower cost to operate and change: 30% application cost reduction via automation; productivity gains of ~40% through modernization.

  • Scale modernization with confidence: 65,000 workloads transformed annually through DXC modernization programs.

  • Testing efficiency: 50% reduction in testing time and resources, with ~40% cost savings through intelligent automation and TaaS models.

  • Enterprise scale & reliability: 2B+ lines of code transformed, 20K+ apps managed globally, and 99.84% migration success across complex estates.




Where do you want to move fastest—build, modernize or assure?

Speak with our experts to shape a path that fits your strategy, risk profile and timeline. Get started with DXC.




Airplane soaring through a sunny sky, United Airlines | DXC Technology Customer Stories

Travel & Transportation

United Airlines

Modernizing critical operations and delivering new mobile experiences for passengers and crew with DXC’s software engineering expertise.
Government employees in sunny meeting room, Government of Flanders | DXC Technology Customer Stories

Public Sector

Government of Flanders

Rapid delivery of digital services during a national health crisis, backed by DXC’s quality engineering.
River dam with water cascading over the top, Uniper | DXC Technology Customer Stories

Energy

Uniper

Application modernization and automation to improve performance, security and operational efficiency.

Frequently Asked Questions

DXC uses a cloud‑native, API‑first, microservices‑based approach to build applications that are scalable, secure and future‑ready. Our teams apply DevSecOps principles to embed security from the start and leverage AI‑powered automation to accelerate delivery. We also integrate design thinking and agile methodologies to ensure applications align with business outcomes and deliver superior user experiences. By combining reusable accelerators, automated pipelines and observability tools, DXC helps enterprises reduce cycle time, improve quality and achieve faster time‑to‑market.

DXC offers a structured modernization framework that minimizes risk and downtime. We start with portfolio assessment and value mapping to identify which applications should be rehosted, re-platformed, refactored or replaced. Our modernization factories and automation tools enable large‑scale migrations to cloud environments such as AWS, Azure and Google Cloud. We also modernize middleware, databases and integration layers to improve performance and resilience. This approach allows organizations to unlock agility, reduce technical debt and lower operating costs while maintaining business continuity.

DXC provides end‑to‑end quality engineering that goes beyond traditional testing. Our services include functional, performance, security and compliance testing, powered by AI‑driven automation and consumption‑based Testing‑as‑a‑Service (TaaS) models. We integrate testing early in the development cycle (“shift left”) to catch defects sooner and reduce rework. DXC also supports continuous testing in DevOps pipelines, ensuring rapid releases without compromising quality. This approach helps clients achieve up to 50% faster testing cycles and 40% cost savings, while delivering flawless digital experiences.

DXC combines global scale, deep domain expertise, and proven delivery models. With 65,000 workloads transformed annually, 20,000+ applications managed globally, and 99.84% migration success, we bring unmatched experience to complex modernization programs. Our partnerships with AWS, Microsoft, Google Cloud, SAP, Salesforce and Oracle ensure best‑in‑class technology integration. By leveraging AI‑augmented engineering, industrialized modernization factories, and quality assurance at scale, DXC helps enterprises accelerate innovation, reduce costs and stay competitive in a rapidly changing digital landscape.

Learn about our partner ecosystem