How do you decide between refactoring, rebuilding and replacing a legacy system?

A paid modernization assessment establishes the current architecture, data, integrations, risk and business objective. From that evidence we recommend what to retain, refactor, rebuild or replace, and sequence the transition into independently valuable releases rather than one large cut-over.

What does the 45-working-day delivery commitment actually cover?

For qualified scopes we deliver the agreed production release within 45 working days — fixed scope, fixed price and engineered for handover. Qualification requires a bounded application, workflow or independently deployable release, agreed architecture and acceptance criteria, assessable integrations and data migration, representative data and environments ready before day one, and a named client owner who can decide within one working day.

Is the work fixed price or time and materials?

Assessments, roadmaps and architecture reviews are fixed fee. Defined software delivery is fixed scope and fixed price against acceptance criteria. Larger transformations run as successive fixed-scope phases, and sustained delivery capability can run as a managed team on a monthly fee.

Can you take over a stalled or AI-built application?

Yes. Production recovery is part of this service line. We assess the code, architecture, data and security position, stabilize what is viable, and prepare a controlled path to a production release with tests, monitoring and documentation in place.

What do we own at the end of the engagement?

Everything needed to run and evolve the system without us: the repository, architecture decision records, tests, runbook, access map, documentation and training. Ownership transfer is part of the definition of done, not an optional extra.

SOFTWARE CONSULTING & ENGINEERING

Modernize What Is Holding the Business Back – Build What Comes Next

RITE NRG advises, architects and delivers software for organizations whose technology limits growth, efficiency, resilience or customer experience.

Discuss your modernization

>_ reference flow

#01 /what-we-do

When to Involve Us

Legacy software prevents change.
Critical processes depend on fragile or unsupported systems.
Data and integrations are fragmented.
A new platform or digital product must reach production.
A stalled or rapidly AI-built application needs professional recovery.

What We Do

Technology strategy, discovery and architecture.
Legacy system modernization and replacement.
New systems, digital products and platforms.
ERP, CRM and operational business systems.
Data, API and systems integration.
Production recovery and release.

How Clients Engage

Technology or Modernization Assessment — fixed fee.
Defined software delivery — fixed scope and fixed price.
Transformation program — successive valuable releases.

These are engagement formats, not productized packages with artificial names.

Engineered for Handover

Source repository.
Architecture and decision records.
Test evidence.
Deployment and operating runbook.
Access and responsibility map.
Technical and user documentation.
Monitoring and observability.
Training and knowledge transfer.

Working Days to a Production Release

For qualified scopes, RITE NRG delivers the agreed production release within 45 working days — fixed scope, fixed price and engineered for handover.

Larger estates become consecutive, independently valuable releases. The commitment is never a promise to rebuild every legacy system, dependency and migration in one 45-day window.

Before Day 1Qualify the release, agree scope and acceptance criteria, confirm access and dependencies.
Days 1–5Validate architecture, data, integrations, risk and delivery plan.
Days 6–25Build in thin production-relevant slices with continuous testing and review.
Days 26–40Integrate, secure, test, observe, document and complete user acceptance.
Days 41–45Release to production, train, hand over and agree the next release or operating model.

What Qualifies?

The production release is bounded, prioritized and testable.
Decision-makers are available and decisions can be made quickly.
Required systems, data, environments and access can be provided before Day 1.
Major dependencies and integrations are known or explicitly time-boxed.
Security, regulatory and migration requirements can be assessed during qualification.
Acceptance criteria and commercial boundaries are agreed.
Material scope changes move into a later release rather than silently expanding the commitment.

#02 /questions

Common Questions

How do you decide between refactoring, rebuilding and replacing a legacy system?: A paid modernization assessment establishes the current architecture, data, integrations, risk and business objective. From that evidence we recommend what to retain, refactor, rebuild or replace, and sequence the transition into independently valuable releases rather than one large cut-over.
What does the 45-working-day delivery commitment actually cover?: For qualified scopes we deliver the agreed production release within 45 working days — fixed scope, fixed price and engineered for handover. Qualification requires a bounded application, workflow or independently deployable release, agreed architecture and acceptance criteria, assessable integrations and data migration, representative data and environments ready before day one, and a named client owner who can decide within one working day.
Is the work fixed price or time and materials?: Assessments, roadmaps and architecture reviews are fixed fee. Defined software delivery is fixed scope and fixed price against acceptance criteria. Larger transformations run as successive fixed-scope phases, and sustained delivery capability can run as a managed team on a monthly fee.
Can you take over a stalled or AI-built application?: Yes. Production recovery is part of this service line. We assess the code, architecture, data and security position, stabilize what is viable, and prepare a controlled path to a production release with tests, monitoring and documentation in place.
What do we own at the end of the engagement?: Everything needed to run and evolve the system without us: the repository, architecture decision records, tests, runbook, access map, documentation and training. Ownership transfer is part of the definition of done, not an optional extra.

#03 /proof

Related Outcomes

AI Revolution in Construction: Weeks Cut to Minutes

RITE NRG partnered with Swedish founders to develop an AI-powered SaaS that reduces construction installation estimates from weeks to minutes. Through a three-month discovery phase, we trained a custom AI model reaching 80% accuracy in recognizing water pipes from 2D drawings, laying the foundation for a market-ready product.

Read the case study

→ open case_study/ai-revolution-in-construction-weeks-cut-to-minutes

From Vision to Deloitte-Recognized Product in 6 Months

Metapro envisioned a Web3 gaming ecosystem serving both game developers and gamers. RITE NRG took full ownership as strategic delivery partner and shipped a functional MVP, including marketplace, private decentralized storage and a mobile wallet, in six months, in time for a major industry showcase.

Read the case study

→ open case_study/from-vision-to-deloitte-recognised-product-in-6-months

Scaling a Team of 34 Engineers in Four Months

A technology-first online social games company with over 1,000 employees needed to move beyond a legacy platform and establish a European presence. RITE NRG built a culturally aligned dedicated team and a new R&D center in Krakow, and delivered a greenfield platform designed to host 30 to 50+ brands.

Read the case study

→ open case_study/scaling-a-team-of-34-engineers-in-four-months

Related Services

AI Consulting & Automation

Turn AI opportunities into controlled business outcomes.

Read about AI Consulting & Automation

Managed Technology Services

Run, protect and continuously improve production technology.

Read about Managed Technology Services

Show Us What Is Slowing You Down

Tell us the system, the constraint or the capability gap. We will explain what should change, what should remain and what a responsible path forward looks like.

Start the conversation