Cloud-Native Modernization: From Legacy to Leading-Edge

Stop letting monolithic architecture dictate your pace.
We refactor, re-platform, and rebuild your applications for the cloud era—unlocking unparalleled agility, resilience, and scale with Kubernetes and microservices.

Cloud-Native Modernization An abstract illustration showing a rigid, monolithic block transforming into a dynamic, interconnected network of microservices managed by a central orchestrator, symbolizing the transition to a cloud-native architecture. LEGACY Modernize

Trusted by Global Leaders and Industry Innovators

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Why CIS for Your Cloud-Native Transformation?

Transitioning to cloud-native is more than a tech upgrade; it's a fundamental business shift. We are not just coders; we are strategic partners who ensure your modernization journey delivers tangible ROI, operational excellence, and a sustainable competitive advantage.

Accelerated Time-to-Market

Our AI-augmented DevOps pipelines and microservices architecture drastically cut down development cycles. Deploy features faster, respond to market changes instantly, and out-innovate your competition.

Ironclad Security & Compliance

With CMMI Level 5, SOC 2, and ISO 27001 certifications, we embed security into every layer of your modernized stack. Benefit from DevSecOps, zero-trust principles, and proactive threat modeling from day one.

Predictable & Optimized Costs

We eliminate budget surprises. Our FinOps-driven approach ensures you leverage cloud elasticity efficiently, avoiding over-provisioning and maximizing your infrastructure investment for a lower TCO.

Deep Kubernetes & CNCF Expertise

We are not just users; we are experts in the Cloud Native Computing Foundation (CNCF) ecosystem. From Kubernetes and Istio to Prometheus and Helm, our certified engineers build resilient, observable, and scalable platforms.

Pragmatic Modernization Strategy

We don't believe in "big bang" risks. We use proven methodologies like the Strangler Fig pattern to incrementally modernize your legacy systems, ensuring business continuity and delivering value at every stage.

100% In-House, Vetted Experts

Your project is handled exclusively by our full-time, AI-enabled professionals. This guarantees consistent quality, deep institutional knowledge, and seamless collaboration without the risks of freelance or outsourced talent.

Future-Proof Architecture

We build systems designed for evolution. Our API-first, event-driven architectures ensure your platform can easily integrate with future technologies, from advanced AI models to IoT ecosystems, protecting your investment for years to come.

Transparent, Collaborative Partnership

We operate as an extension of your team. With a 95% client retention rate and a 2-week paid trial, we build trust through radical transparency, clear communication, and a shared commitment to your success.

Global Delivery, Proven Success

Since 2003, we've delivered over 3000 successful projects for clients across 100+ countries. Leverage our global expertise and proven track record to ensure your modernization project succeeds, no matter the scale or complexity.

Our End-to-End Cloud-Native Services

We offer a comprehensive suite of services to guide you through every phase of your cloud-native journey, from initial strategy to ongoing optimization. Our AI-enabled approach ensures efficiency, intelligence, and security are built-in, not bolted on.

Cloud-Native Strategy and Roadmap

Before writing a single line of code, we align technology with your business goals. We analyze your existing portfolio, identify high-impact modernization candidates, and create a phased, risk-mitigated roadmap that delivers incremental value and builds momentum for transformation.

  • Application Portfolio Analysis: We use AI-powered tools to assess complexity, business value, and technical debt to prioritize what to modernize first.
  • ROI & TCO Modeling: Develop a clear business case with projected cost savings, revenue opportunities, and operational efficiencies.
  • Target Architecture Design: Blueprint a future-state architecture that is scalable, secure, and aligned with your long-term vision.
Team collaborating on a strategic roadmap

Microservices Architecture & Development

We break down monolithic applications into fine-grained, independently deployable microservices. This approach fosters team autonomy, accelerates feature delivery, and enhances system resilience by isolating failures.

  • Domain-Driven Design (DDD): Decompose complex systems into logical, business-aligned services that are easier to understand and maintain.
  • API-First Development: Design and build robust, well-documented APIs that enable seamless communication between services and with external systems.
  • Event-Driven Architecture: Implement asynchronous, non-blocking communication patterns for highly scalable and decoupled systems.
Diagram of interconnected microservices

Kubernetes Enablement & Platform Engineering

We build and manage production-grade Kubernetes platforms that automate application deployment, scaling, and operations. Our goal is to create a robust Internal Developer Platform (IDP) that empowers your teams to ship code faster and more reliably.

  • Managed Kubernetes (EKS, GKE, AKS): Leverage the power of managed cloud services for a resilient and low-maintenance container orchestration platform.
  • Service Mesh Implementation (Istio, Linkerd): Gain deep observability, traffic management, and enhanced security for your microservices communications.
  • GitOps & Infrastructure as Code (IaC): Use tools like ArgoCD and Terraform to manage your entire platform declaratively, ensuring consistency and auditability.
Kubernetes cluster dashboard

AI-Augmented DevSecOps & CI/CD Automation

We build intelligent, automated pipelines that integrate security and quality checks at every stage of the software lifecycle. Our AI tools predict build failures, optimize testing, and identify security vulnerabilities before they reach production.

  • Continuous Integration & Delivery: Automate the build, test, and deployment process for rapid, reliable releases.
  • Security as Code: Integrate static analysis (SAST), dynamic analysis (DAST), and dependency scanning directly into your pipeline.
  • Cloud Cost Optimization (FinOps): Implement automated policies and monitoring to control cloud spend and ensure cost efficiency.
A CI/CD pipeline visualization

Legacy Application Refactoring & Re-platforming

We systematically untangle your legacy codebases, refactoring them into cloud-native patterns or re-platforming them onto modern infrastructure. This process reduces technical debt, improves maintainability, and unlocks new capabilities.

  • Strangler Fig Pattern Application: Incrementally replace parts of your legacy system with new microservices, minimizing risk and disruption.
  • Database Modernization: Migrate from monolithic relational databases to cloud-native databases (e.g., PostgreSQL, CockroachDB) or specialized NoSQL solutions.
  • Containerization (Docker): Package your applications and their dependencies into portable containers, ensuring consistency across all environments.
Developers working on refactoring complex code

Serverless & Function-as-a-Service (FaaS)

For event-driven workloads and applications with variable traffic, we leverage serverless computing (AWS Lambda, Azure Functions) to eliminate infrastructure management and optimize costs. You pay only for what you use, achieving ultimate efficiency and scalability.

  • Event-Driven Architectures: Build highly responsive systems that react to events from various sources like message queues, databases, or IoT devices.
  • Backend-as-a-Service (BaaS) Integration: Accelerate development by integrating with managed services for authentication, storage, and databases.
  • Cost & Performance Optimization: Fine-tune function memory, concurrency, and triggers to achieve the perfect balance between performance and cost.
A diagram showing a serverless architecture flow

Proven Results in Cloud-Native Transformation

Client

ScaleUp SaaS Inc.

Industry

Financial Technology (FinTech)

Firmographics

Strategic Tier ($5M ARR), 150 Employees

"CIS didn't just migrate us to the cloud; they transformed our entire delivery model. Our developers are happier, our releases are faster, and our platform is finally stable enough to support our enterprise clients. The move to Kubernetes was the best decision we've made."

- Ava Harrington, CTO, ScaleUp SaaS Inc.

From Monolith to Microservices: Enabling Enterprise Scale for a FinTech Innovator

ScaleUp SaaS Inc. provided a cutting-edge analytics platform but was trapped by its monolithic architecture. Frequent outages during peak trading hours, slow feature releases, and an inability to scale for large enterprise customers were threatening their growth. They needed to re-architect for reliability and speed without disrupting their existing client base.

Key Challenges:

  • Deployment Bottlenecks: A single code change required a full system redeployment, taking hours and carrying high risk.
  • Scalability Issues: The entire application had to be scaled up to handle load on a single component, leading to massive infrastructure waste.
  • Lack of Resilience: A failure in a non-critical module could bring down the entire platform.
  • High Operational Overhead: The operations team spent most of their time firefighting and managing complex, manual deployments.

Our Cloud-Native Solution:

We executed a phased modernization strategy focused on immediate stability and long-term agility.

  • Phase 1 (Stabilize): We containerized the existing monolith using Docker and deployed it on a managed Kubernetes cluster (Amazon EKS), providing immediate auto-scaling and self-healing capabilities.
  • Phase 2 (Decompose): Using the Strangler Fig pattern, we identified and extracted the highest-traffic component—the data ingestion service—into a separate microservice.
  • Phase 3 (Automate): We built a complete DevSecOps pipeline with Jenkins and integrated security scanning, enabling automated, push-button deployments for the new microservice.
  • Phase 4 (Observe): We implemented a full observability stack using Prometheus, Grafana, and Jaeger, providing deep insights into application performance and health.
99.95%
Uptime Achieved
8x
Faster Deployment Frequency
40%
Reduction in Infrastructure Costs

Client

Global Connect Logistics

Industry

Transportation & Logistics

Firmographics

Enterprise Tier (>$50M ARR), 5000+ Employees

"Our legacy mainframe system was a black box. CIS helped us migrate critical shipment tracking logic to a modern, event-driven architecture on Azure. We now have real-time visibility and can innovate at a pace we never thought possible. Their expertise in legacy modernization was invaluable."

- Marcus Dyer, VP of IT Operations, Global Connect Logistics

Modernizing a Core Logistics Platform for Real-Time Visibility

Global Connect Logistics relied on a 20-year-old on-premise system for its core shipment tracking. The system was brittle, expensive to maintain, and couldn't integrate with modern partner APIs or provide the real-time data customers demanded. They needed to move to the cloud to improve efficiency and create new data-driven services.

Key Challenges:

  • Data Silos: Critical data was locked in a legacy database, making real-time analytics impossible.
  • High Latency: Batch processing meant tracking updates were often hours behind.
  • Integration Complexity: Connecting with modern partner systems via APIs was a slow, custom-coded nightmare.
  • Talent Scarcity: Finding developers to maintain the old COBOL-based system was increasingly difficult and expensive.

Our Cloud-Native Solution:

We focused on re-platforming and rebuilding the core logic using a serverless, event-driven architecture on Microsoft Azure.

  • Data Migration: We carefully migrated historical data to Azure Cosmos DB, a globally distributed, multi-model database, enabling low-latency queries.
  • Event-Driven Ingestion: We used Azure Functions and Event Hub to create a highly scalable ingestion pipeline for real-time tracking data from IoT devices and partner systems.
  • API Gateway: We exposed the new functionality through Azure API Management, providing a secure, managed gateway for internal and external consumers.
  • CI/CD for Serverless: We established an automated CI/CD pipeline using Azure DevOps to deploy changes to the serverless functions safely and frequently.
Data Latency
60%
Reduction in Operational Costs
10+
New Partner Integrations in 6 Months

Client

Marketplace.co

Industry

Retail & E-commerce

Firmographics

Strategic Tier ($8M ARR), 80 Employees

"We were struggling with downtime every Black Friday. CIS's DevSecOps approach and migration to GKE not only solved our stability problems but also uncovered security vulnerabilities we didn't know we had. Our platform is now faster, more secure, and ready for hyper-growth."

- Jenna Raynor, Founder & CEO, Marketplace.co

Building a Resilient E-commerce Platform to Handle Extreme Peak Traffic

Marketplace.co, a rapidly growing online marketplace, faced critical stability issues. Their monolithic PHP application, running on a cluster of virtual machines, couldn't handle the traffic spikes of major sales events, leading to lost revenue and customer frustration. They needed a scalable and secure platform to support their growth.

Key Challenges:

  • Traffic Spikes: The system would crash during flash sales and holiday promotions.
  • Slow Page Load Times: Poor performance was hurting their SEO rankings and conversion rates.
  • Security Vulnerabilities: The legacy codebase had numerous unpatched vulnerabilities, posing a significant risk.
  • Manual Scaling: The team had to manually add servers before every sales event, a process that was slow and error-prone.

Our Cloud-Native Solution:

We re-architected their platform on Google Cloud Platform (GCP) with a focus on auto-scaling, performance, and security.

  • Containerization & Orchestration: We containerized the application and deployed it on Google Kubernetes Engine (GKE), enabling horizontal pod autoscaling to handle traffic spikes automatically.
  • Headless Architecture: We decoupled the frontend from the backend, creating a headless commerce setup with a React-based frontend and microservices for cart, checkout, and payment.
  • Content Delivery Network (CDN): We implemented Cloudflare to cache static assets at the edge, dramatically improving global page load times.
  • Integrated DevSecOps: We built a CI/CD pipeline in GitLab that included automated container scanning with Google Container Registry and dynamic application security testing (DAST).
100%
Uptime During Peak Sales
2.1s
Average Page Load Time
75%
Reduction in Critical Vulnerabilities

Our Phased & Agile Modernization Process

We follow a structured, iterative process that minimizes risk and maximizes value at every step. Our approach ensures transparency, stakeholder alignment, and continuous improvement throughout your modernization journey.

Phase 1: Discover & Strategize

We start by understanding your business context. We conduct workshops, analyze your current architecture, and define clear, measurable goals for the modernization effort. The output is a strategic roadmap and a high-level target architecture.

Phase 2: Pilot & Foundation

We select a low-risk, high-impact pilot project to prove the value of the new architecture. Concurrently, we build the foundational cloud infrastructure and CI/CD pipelines that will support the entire modernization program.

Phase 3: Iterate & Decompose

Following an agile methodology, we work in sprints to incrementally decompose the monolith. We extract services, build new features, and migrate data, delivering functional software in every cycle and gathering feedback to refine our approach.

Phase 4: Scale & Optimize

As more services are migrated, we focus on scaling the platform, optimizing performance, and enhancing observability. We implement advanced patterns like service mesh and fine-tune cloud costs through FinOps practices.

Phase 5: Govern & Empower

We establish a Cloud Center of Excellence (CCoE) and provide comprehensive training to empower your teams. We hand over a well-documented, automated, and easy-to-manage platform, ensuring you can sustain and build upon the new architecture independently.

Our Core Technology & Tools Stack

We leverage a curated set of best-in-class, cloud-native technologies from the CNCF landscape and beyond to build robust, scalable, and secure systems.

What Our Clients Say

Avatar for Ava Harrington

"CIS's expertise in Kubernetes is second to none. They built a platform that not only solved our scaling problems but also empowered our developers to ship code faster than ever before. They are true partners in every sense of the word."

Ava Harrington
CTO, ScaleUp SaaS Inc. (FinTech)
Avatar for Marcus Dyer

"The move from our on-premise servers to a microservices architecture on AWS was a massive undertaking. The CIS team managed the complexity with incredible professionalism, ensuring zero downtime for our critical operations. Our TCO is down 35%."

Marcus Dyer
VP of IT Operations, Global Connect Logistics (Logistics)
Avatar for Jenna Raynor

"We needed to refactor our monolithic e-commerce app before our next funding round. CIS delivered a scalable, secure, and high-performance solution on schedule. Their DevSecOps approach gave our investors immense confidence."

Jenna Raynor
Founder & CEO, Marketplace.co (E-commerce)
Avatar for Edward Lyons

"Their AI-augmented CI/CD pipeline is a game-changer. It catches bugs and security flaws we would have missed, and our deployment success rate has hit 99.8%. The level of automation they've built is incredible."

Edward Lyons
Head of Platform Engineering, InnovateHealth (HealthTech)
Avatar for Claire Baxter

"We engaged CIS for a 2-week trial to assess their capabilities. By the end of the trial, they had already containerized a legacy service and deployed it to a test Kubernetes cluster. We signed a long-term contract immediately. Their speed and expertise are impressive."

Claire Baxter
Director of Digital Transformation, Enterprise Solutions Ltd. (Manufacturing)
Avatar for Nathan Carter

"The free replacement guarantee gave us peace of mind, but we never had to use it. Every engineer from CIS was top-tier, deeply knowledgeable, and integrated seamlessly with our in-house team. The 100% in-house model really makes a difference in quality."

Nathan Carter
Lead Architect, DataStream Analytics (Data & Analytics)

Frequently Asked Questions

While it varies by project, clients typically see significant ROI across three areas. First, a 30-50% reduction in infrastructure and operational costs due to cloud efficiencies and automation. Second, a 5-10x increase in deployment speed, which accelerates revenue from new features. Third, improved stability and scalability directly impact customer retention and unlock opportunities to serve larger enterprise clients, significantly increasing LTV.

We mitigate risk through a phased, incremental approach. We never do a "big bang" migration. We use the Strangler Fig pattern to gradually route traffic to new microservices while the legacy system remains operational. We build robust CI/CD pipelines with extensive automated testing (unit, integration, E2E) and employ canary deployments or blue-green strategies to release changes safely with zero downtime.

Empowerment is a core part of our delivery. We work as a blended team, pairing our experts with your engineers. We conduct hands-on workshops, provide extensive documentation, and build an Internal Developer Platform (IDP) that abstracts away Kubernetes complexity. Our goal is to make your team self-sufficient and confident in managing the new cloud-native environment by the end of the engagement.

Our key differentiators are our 100% in-house model, our AI-augmented approach, and our verifiable process maturity. Unlike firms that rely on contractors, our dedicated, full-time experts ensure consistent quality. Our use of AI in DevSecOps and project management accelerates delivery and improves quality. Finally, our CMMI Level 5 and SOC 2 certifications provide independently verified proof of our commitment to secure, repeatable, and high-quality processes.

The trial is a low-risk way to experience our expertise firsthand. We scope a small but meaningful proof-of-concept, such as containerizing a legacy service, setting up a basic CI/CD pipeline, or conducting a cloud readiness assessment. You get to work directly with our engineers, evaluate our communication and delivery process, and receive a tangible deliverable. If you're not satisfied, there's no further commitment.

Ready to Unleash Your Application's Potential?

Your legacy systems are costing you more than just maintenance fees—they're costing you agility, innovation, and market share. Let's build a roadmap to transform your technology from a liability into your greatest competitive advantage.

Schedule a Free, No-Obligation Consultation

Talk to one of our Cloud-Native Architects to assess your needs and discover your modernization path.