Software Modernization

We rebuild the systems your business depends on and make them ready for the next decade.

Talk directly to one of our founders

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Modern architecture that replaces fragile legacy.

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Built by those who understand both old and new tech.

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Radical focus on performance, scalability, and stability.

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All done under one roof for complete end-to-end clarity.

A battle tested approach from start to delivery

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Scope Identification

We assess your current systems, constraints, and goals to define what needs modernizing, what can stay, and where the real leverage is.

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Architecture and Plan

We design a future-proof architecture and a phased roadmap that balances speed, risk, and business impact before any code is written.

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Complete Modernization Service

We modernize incrementally, replacing or refactoring components without disrupting operations, while continuously validating performance and stability.

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Delivery

We deploy, document, and hand over a production-ready system, with clear ownership, monitoring, and a roadmap for what comes next.

A battle tested approach from start to delivery

01

Scope Identification

We assess your current systems, constraints, and goals to define what needs modernizing, what can stay, and where the real leverage is.

02

Architecture and Plan

We design a future-proof architecture and a phased roadmap that balances speed, risk, and business impact before any code is written.

03

Complete Modernization Service

We modernize incrementally, replacing or refactoring components without disrupting operations, while continuously validating performance and stability.

04

Delivery

We deploy, document, and hand over a production-ready system, with clear ownership, monitoring, and a roadmap for what comes next.

Product Building Expertises
Product Building Expertises

Turn your idea into a production-ready product built for growth

Architecture and Foundations

We analyze existing systems and redesign their architecture to reduce complexity, risk, and technical debt. The result is a modular, future-proof foundation that supports frontend evolution, backend changes, and AI-ready systems.

EXPERTISES
Legacy System Analysis
Modular and Layered Architectures
Cloud and Platform Migrations
Technical Debt Reduction
AI Readiness and Enablement

Engineering

We modernize systems incrementally through refactoring, targeted rewrites, and infrastructure improvements. This includes backend services, APIs, integrations, and performance upgrades, all delivered without disrupting critical operations.

EXPERTISES
Backend Refactoring and Rewrites
API Modernization
Performance and Reliability Improvements
Security Hardening
Infrastructure Modernization

Design

We modernize user-facing systems by redesigning UX, UI, and frontend together. Design and engineering move in lockstep to improve usability, clarity, and performance while aligning the frontend with modern foundations.

EXPERTISES
UX and Product Design
UI and Design Systems
Frontend Architecture Modernization
Accessibility and Usability Improvements
User Flow Optimization
Software Modernization

The companies that win are the ones with clean foundations. Modern systems enable momentum that compounds.

Modernization Assessment

Get a clear view of where your systems hold you back and where modernization creates leverage. The assessment highlights risks, wins, and priorities.

  • Identify architectural bottlenecks and technical debt
  • Assess frontend, backend, and infrastructure maturity
  • Define modernization strategy and next steps
Online
Free of charge
Visit free Assessment tool

Full Product & Tech Analysis

A deep-dive into your product and architecture to define a clear modernization roadmap, aligned with business impact and future readiness.

  • Full architecture, engineering, and UX review
  • Performance, scalability, and AI readiness analysis
  • Phased roadmap with priorities, risks, and effort
2 weeks
€10k
book a call

Complete Modernization Service

We modernize your systems end to end, from architecture to UX, delivered incrementally without disrupting daily operations.

  • Backend, frontend, and UX modernizationI
  • nfrastructure, performance, and reliability upgrades
  • Production-ready delivery with smooth handover
Full service
From €25k
book a call

"Eli5 helped us transform our product strategy, delivering a scalable, innovative platform that’s taken Peecho to the next level."

Eric Kickert
CEO
Peecho

“Eli5 has built a great software application for A-Insights and their backend team has helped automating processes that streamlined our internal operations. Their user-centered approach has created a visually stunning and intuitive product for our customers.”

Bart Zirschky
Founder
A-Insights

"Working with Eli5 has been transformative. They turned our vision into a product that simplifies compliance and sets a new standard in RegTech. Their expertise and iterative approach made building Typejust a great and rewarding experience"

Niek Delis
CEO
Typejust

"Eli5’s rapid prototyping and user validation approach allowed us to bring our innovative healthcare solution, Pacmed, to life in record time. Their ability to turn our vision into a fully functional product in just a matter of weeks was nothing short of impressive."

Hidde Hovenkamp
Founder
Pacmed
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