Legacy Systems Modernization Without Business Disruption

Sphere helps you modernize the systems holding you back, in controlled phases, with AI-accelerated analysis and zero downtime.
You keep running. We fix the foundation.

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Your Legacy Platform Is Costing You More Than You Think

Technology debt compounds quietly. By the time leadership feels it, it’s embedded in every process. Here are the six signs we see most often.

1. Maintenance is eating your IT budget

Gartner estimates that 70–80% of enterprise IT budgets go to maintaining existing systems rather than building new capability. That’s not a technology problem. It’s a growth problem.

2. You can’t find developers who know the stack

Every year, the pool of engineers who can work on legacy environments shrinks. The ones who built these systems are retiring. Institutional knowledge walks out the door and doesn’t come back.

3. Every release is a risk event

66% of large software projects fail or significantly overrun. The root cause in most cases is legacy systems so tightly coupled that no change is safe without months of regression testing.

4. You can’t integrate with modern tools

Companies with modern, API-first architectures launch new products 20–40% faster than those running on monolithic platforms. Legacy systems slow every decision that depends on data.

5. Incidents are slow and hard to trace

When logic is scattered across decades of undocumented code, a single outage becomes a forensic exercise. Every hour engineers spend on firefighting is an hour they’re not building.

6. Compliance and security debt is mounting

Unpatched dependencies, missing audit trails, hardcoded credentials… Legacy systems accumulate regulatory exposure faster than it can be managed manually.

Talk to us about your Platform Modernization challenges

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Legacy Modernization Services from Sphere

We adapt to where you are. If you need clarity before committing, we start with an assessment. If you’re ready to move, we go straight into delivery. Both paths are designed to produce value fast, keeping your business running throughout.

START HERE

Modernization Assessment

A fast, structured engagement that gives your leadership team a complete, evidence-based picture of your technical estate. We provide clear recommendations and numbers attached.

  • AI-powered scan of your full codebase and application portfolio
  • Risk and business-value score for every major component
  • Sequenced modernization backlog with ROI and cost projections
  • Recommended phasing plan tailored to your risk tolerance
  • Delivered in 2–3 weeks, no long commitments required
  • Most clients say it’s the clearest view of their systems they’ve ever had

FULL DELIVERY

Platform Modernization

End-to-end modernization delivered in phases. Your first production improvements will be live in 6–8 weeks. The main benefits: your systems stay online while your team learns as we build.

  • Phased delivery – value ships from week six, not month eighteen
  • Zero-downtime architecture: legacy and modern run in parallel throughout
  • Full-stack in-house teams: backend, infra, data, and security
  • AI-accelerated refactoring across any language or framework
  • Knowledge transfer built into every phase – your team owns the outcome
  • FinOps guardrails keep cloud costs predictable as you scale

Our 4-Phase Legacy Modernization Framework

Every engagement follows the same proven structure. Phases overlap where it makes sense, and each one ends with a clear deliverable – not just progress updates.

Phase 1 – Rapid Assessment (2–3 weeks)

AI-powered code analysis maps your entire codebase in days. Every module scored by business risk, integration complexity, and revenue impact – so you know exactly where to start.

Phase 2 – Strategic Roadmap (1 week)

Accelerator-based delivery aligned to complexity tiers, not open-ended builds.

Phase 3 – Iterative Modernization (phased delivery)

Working improvements ship in 6–8 weeks. Each phase wraps legacy components in tests, upgrades dependencies, and closes security gaps – while your systems stay live.

Phase 4 – Continuous Optimization (ongoing)

AI-assisted monitoring tracks performance, deployment health, and cost after go-live. Your team gets knowledge transfer at every stage, so you own the system when we're done.

What We Modernize

Every engagement follows the same proven structure. Phases overlap where it makes sense, and each one ends with a clear deliverable – not just progress updates.

Legacy Platforms

COBOL and AS/400 (IBM iSeries) business applications

.NET Framework (1.x–4.x) monoliths and WCF services

Visual Basic 6 and classic ASP applications

Oracle Forms and PL/SQL-heavy systems

Java EE / J2EE enterprise applications

PHP monoliths and aging CMS-based platforms

On-premise data warehouses and ETL pipelines

Target Modern Stacks

Cloud-native architecture on AWS, Azure, and GCP

Containerized microservices with Kubernetes orchestration

Event-driven architecture with Kafka and managed streaming

Modern .NET (6/8), Node.js, React front-end layers

AI/ML inference pipelines and governed feature stores

CI/CD pipelines and DevSecOps toolchains

What Makes Us Different

AI-Accelerated Analysis

Our tooling analyzes legacy codebases 10x faster than manual review. You get a clear, prioritized risk picture in weeks, not months, before a single line of code changes.
Business-First Prioritization

We sequence work by revenue impact, not just technical debt score. The modules that carry the most business risk – and the most opportunity – get addressed first.
Zero-Downtime Delivery

Changes roll out under full production load. No big-bang cutovers, no maintenance windows. Your users and your team keep working throughout the entire engagement.
Full-Stack, In-House Teams

Backend, infrastructure, data, and security engineers on every project. No offshore subcontracting, no third-party dependencies. One accountable team from start to finish.
Knowledge Transfer at Every Stage

We pair with your engineers as we build, document what we find, and train your team on the modern stack. When we leave, you own the system – and you understand it.
Transparent Cost Controls

FinOps guardrails are built into our cloud delivery model. Clients consistently see run-rate cloud spend fall 25–40% after containerization, with autoscaling absorbing peak load.

Talk to us about your Platform Modernization challenges

E-Commerce
Banking
Healthcare
Manufacturing

Streamlining IT Operations with Salesforce–monday.com Integration

Sphere replaced spreadsheet-based IT management at Network Services Distribution with a unified Salesforce–monday.com integration, cutting reporting time by 70–80% and delivering real-time operational visibility.
View Case Study Explore Out More
Streamlining IT Operations with Salesforce–monday.com Integration

Test Automation Cuts Mobile QA Time

Sphere built a custom test automation framework for OneMain’s loan app, accelerating QA cycles and freeing up internal dev resources.
View Case Study Explore Out More
Test Automation Cuts Mobile QA Time

Transforming Healthcare Data Governance & Compliance

Sphere built a secure cloud data environment on Azure, automating compliance reporting via ETL pipelines and deploying Power BI dashboards.
View Case Study Explore Out More
Transforming Healthcare Data Governance & Compliance

Data Modernization Connecting Lab, Plant & Supply Chain

Sphere built a unified Snowflake data warehouse integrating LIMS, MES/SCADA, and ERP systems, enabling automated lab-to-plant data flow, predictive maintenance alerts, and demand forecasting across three regional sites.
View Case Study Explore Out More
Data Modernization Connecting Lab, Plant & Supply Chain

Hear from Our Clients

Sphere Partners
Selah Ben-Haim VP of Engineering at Prominence Advisors

Our experience with Sphere and their team has been and continues to be fantastic. We keep throwing new projects at them, and they keep knocking them out of the park (including the rescue of a project that was previously bungled by another vendor).

Sphere Partners
Ben Crawford Senior Product Manager at Enova Financial

I would expect to be delighted. It’s been a really positive experience, working with Sphere, and I would expect you to have the same.

Sphere Partners
Mark Friedgan CEO at CreditNinja

Sphere consistently prioritizes the needs of their clients, demonstrating both agility and teamwork. They bring innovative and well-considered solutions, consistently surpassing my expectations.

Sphere Partners
René Pfitzner Co-Founder at Experify

Sphere provided excellent full-stack development manpower to augment our team and work with us.

Sphere Partners
Bruce Burdick Chief Information Officer at Integra Credit

We've been working with Sphere and its excellent consultants since our founding. Their combination of offshore talent, pricing, and shift offsetting is hard to beat. They provide crucial augmentation to our in-house team. We simply couldn't achieve our production ambitions without their service.

Sphere Partners
Jemal Swoboda CEO at Dabble

The resources and developers that Sphere Software provides are skilled and have the required technical expertise to complete their tasks successfully, with the team easily scaled in either direction. The deliverables are always high-quality.

Sphere Partners
Arthur Tretyak Founder and CEO at IntegraCredit

With Sphere, we were able to migrate in half the time it would take to train an additional FTE…

Sphere Partners
Lee Ebreo VP of Engineering at Credit Ninja

These things would not have been achievable if we did not build our own in-house system. We augmented our development team capabilities using Sphere’s developer, who works very well with our Dev Lead in Chicago. Sphere’s developer was an expert in the new system, and continues to be an expert as we evolve it.

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Sphere in Numbers

We understand that actions speak louder than words and numbers
but here are some key facts about us.

20

Years of Experience

230

Delivered Projects

200+

Senior Specialists

94%

Satisfaction Rate

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Trusted by

Flexible, fast, and focused — Sphere solves your tech and business challenges as you scale.

Luke Suneja

Client Partner

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Frequently asked question

 Most clients see their first production improvements in 6–8 weeks. Full platform modernizations run 9–18 months in phased sprints –  compared to 18–24+ months for traditional rewrites. Because value ships continuously, you’re not waiting for a final go-live to see results.

Yes. We run legacy and modernized systems in parallel throughout the entire transition. Changes roll out incrementally, and every release is validated in production before the next phase begins. No maintenance windows, no big-bang cutovers.

 This is one of the most overlooked risks in modernization. Our AI tools extract implicit business logic from legacy code –  even when documentation doesn’t exist. We validate every finding with your stakeholders and encode it as explicit tests before anything moves. The knowledge transfers into the new system, not out of the organization.

Offshore staff augmentation adds headcount but not strategic expertise. Most firms build what you spec –  which means the burden of knowing what to build still falls on you. Sphere owns the assessment, the architecture decisions, and the outcomes. We’re accountable to results, not hours logged.

A 2–3 week engagement that delivers: a full inventory of your application portfolio, a risk and business-value score for every major component, a prioritized modernization backlog with ROI and cost projections, and a recommended phasing plan. No obligation to continue with Sphere afterward.

Yes. A significant portion of our work is in financial services, healthcare, and insurance –  industries where compliance, audit trails, and data security aren’t optional. We build regulatory requirements into the modernization plan from day one, not as a retrofit.

You own everything –  the code, the architecture, and the knowledge to run it. We train your team throughout every phase so there’s no dependency on Sphere after we’re done. For teams that want ongoing support, we offer continuous optimization engagements covering performance monitoring, cost control, and iterative improvements.

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