ERS designs and builds middleware solutions that connect your critical systems, keep data flowing reliably, and create a single, coherent view of your business. We help organisations link legacy applications, modern cloud platforms and line-of-business software into one dependable digital backbone.
35+ years – delivering IT solutions
Deep – integration expertise
Trusted by Irish & international clients
Typical Integration View
- CRM / ERP
- Legacy systems
- Cloud apps & SaaS
- IoT & field devices
- Middleware layer
Real-time data flow
- Customer & order data
- Historical records
- Sales, support, finance
- Telemetry & events
- Secure, orchestrated APIs
- Systems talking to each other. No manual re-keying.
Why Middleware Matters
The glue that keeps your systems working together
Every growing organisation accumulates a mix of applications — some in the cloud, some on-premise, some bespoke, others off-the-shelf. Without a solid integration layer, those systems become data silos that slow down staff, duplicate effort and increase risk. Middleware is the “in-between” software that lets them talk to each other.
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Enable legacy and modern applications to exchange data reliably.
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Reduce manual re-entry of information and the errors that go with it.
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Support real-time reporting, analytics and decision-making.
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Make future upgrades and new projects simpler to deliver.
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Improve security and governance by centralising key integrations.
Integration without disruption
Proven in complex, real-world environments
Our middleware projects are designed to work alongside your existing systems, not against them. We map current processes, design carefully around business rules and deliver integrations that feel invisible to users — except for the time and effort they save.
Our Services
Middleware & Integration Services
ERS provides end-to-end support for your integration layer — from initial strategy through to development, optimisation and long-term support.
Integration Consulting & Architecture
We review your application landscape, identify integration gaps and design a middleware architecture that fits your current and future needs. This includes data flows, APIs, messaging patterns and security considerations.
Custom Middleware Development
Our team engineers bespoke middleware components that connect systems, transform data and orchestrate business workflows — using technologies that match your environment and support long-term maintainability.
Legacy System Integration & Modernisation
We surface data from long-serving legacy applications and bring them into modern solutions, ensuring you retain critical historical information while still innovating at the edges.
API & Service Layer Implementation
ERS designs and builds secure APIs and service endpoints that expose the right data to the right applications — supporting both internal integration and controlled access for partners or third-party tools.
Performance, Testing & Optimisation
We test middleware for throughput, resilience and error-handling, then tune it for reliability at scale so your integrations stand up to day-to-day operational loads.
Support, Monitoring & Evolution
Integration is never “set and forget”. ERS provides ongoing support, monitoring and enhancements, helping your middleware keep pace as new systems and requirements emerge.
Why ERS
A partner who understands both software and operations
Our middleware work is grounded in decades of delivering real systems for real organisations. We understand that integration projects are about more than technology — they’re about keeping your business running while you improve it.
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Hundreds of man-years’ experience across cloud, on-premise and hybrid systems.
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Holistic approach that aligns integration work with business processes and outcomes.
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Scalable, secure solutions that support regulatory and governance requirements.
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Irish-based engineering team, trusted by organisations such as the National Lottery, SSE Airtricity and more.
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Clear communication, detailed project plans and a track record of delivering on time and on budget.
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Long-term partnership mindset with support that continues beyond go-live.
How We Work
Our middleware & integration delivery process
ERS uses a structured but flexible approach that keeps you involved at every stage, while ensuring your existing operations continue to run smoothly as new integrations come online.
1 Discover
Requirements & current landscape
We clarify the purpose of the integration work, map your existing systems and data flows, and agree what success looks like for the business.
2 Design
Integration architecture & approach
We design the middleware architecture, define interfaces and data transformations, and plan how the solution will be delivered with minimal disruption.
3 Develop
Middleware build
Our developers implement the middleware components, APIs and connectors, ensuring performance, security and maintainability are built into the core.
4 Test
Testing & refinement
We test integrations across systems and scenarios, refine based on feedback and verify that business rules and data quality are being met.
5 Launch
Go-live & transition
ERS supports cutover planning, rollout and knowledge transfer so your team is confident using and supporting the new integration layer.
6 Evolve
Ongoing improvements
After launch, we support new integrations, platform updates and performance tuning so your middleware layer can grow with your organisation.
Ready to simplify your integration landscape?
Talk to ERS about a middleware approach that connects your systems,
protects your data and supports the next phase of your digital strategy.
FAQs
Middleware & integration questions we’re often asked
What’s the difference between middleware and an API?
An API is a defined interface that one application exposes so another can access data or services. Middleware is the broader integration layer that may expose and consume many APIs, transform data between formats, orchestrate workflows and manage communication between multiple systems.
Can you integrate legacy systems that weren’t designed for the cloud?
Yes. We frequently integrate on-premise and legacy applications by using adapters, database connections or custom connectors. The goal is to respect the role of the legacy system while giving you modern ways to access its data and functions.
How long does a middleware project usually take?
Timelines depend on the number of systems involved and the complexity of the business rules. A tightly scoped integration can often be delivered in a matter of weeks, while a full integration programme is typically phased over several months to minimise risk and disruption.
What technologies do you use for middleware solutions?
ERS is technology-agnostic. We select tools and frameworks that best fit your environment — whether that involves message queues, API gateways, microservices, ETL tools or cloud-native integration platforms. Our priority is a solution that is supportable and sustainable for your team.