Evolve critical software safely

Reduce operational risk without freezing the roadmap.

Application support, maintenance and incremental modernisation for software that must keep serving the business while it improves.

The business challenge

Complexity becomes expensive when ownership is unclear.

Important applications accumulate unsupported dependencies, fragile releases and hidden knowledge, yet a full replacement may be too disruptive or expensive.

Hapmexo approach

We stabilise the current system, document operational knowledge and deliver prioritised improvements in stages tied to measurable risk and business value.

See our development process
Suitable client

When this capability is a practical fit.

Organisations that need support & modernisation capability for an important product, operational workflow or existing application.

Expected business outcomes

Delivery connected to the work your teams need to improve.

01

More predictable support

Defined during discovery and reviewed against agreed acceptance criteria throughout delivery.

02

Reduced legacy risk over time

Defined during discovery and reviewed against agreed acceptance criteria throughout delivery.

03

Better continuity across releases and teams

Defined during discovery and reviewed against agreed acceptance criteria throughout delivery.

Typical solutions

What this engagement can cover.

Scope is shaped around the real requirement. These capability areas help start a focused conversation.

01

Application assessment

02

Defect and incident support

03

Dependency and security updates

04

Performance improvement

05

Incremental code modernisation

06

Release and knowledge documentation

Expected deliverables

Concrete outputs agreed before delivery.

The exact deliverables depend on scope; these are established in the written recommendation and project plan.

  • Agreed scope, priorities and acceptance criteria
  • Architecture and implementation decisions
  • Working, reviewed software within the agreed scope
  • Test, release and technical handover documentation
Recommended use cases

Good-fit situations.

  • Legacy .NET applications
  • Existing Angular or React products
  • PHP application maintenance
  • Business-critical systems with growing technical debt
Relevant industries

Domain contexts.

  • Finance and FinTech
  • Insurance
  • Healthcare
  • Logistics
  • Business services
Technology fit

Verified capabilities selected for the job.

We choose from Hapmexo’s established technology capability based on the existing environment, delivery risk and maintainability.

  • C#
  • ASP.NET
  • ASP.NET Core
  • .NET
  • WPF
  • Angular
  • React
  • Node.js
  • PHP
  • SQL Server
  • MySQL
Delivery approach

From uncertainty to supported software.

01

Discovery

Business goals, users, existing systems, constraints, integrations and material risks.

02

Scope and planning

Priorities, responsibilities, milestones, dependencies and acceptance criteria.

03

Design and architecture

User journeys, solution boundaries, data responsibilities and release approach.

04

Iterative development

Working software delivered in reviewable increments with visible decisions.

05

Testing and deployment

Proportionate validation, release preparation and production checks.

06

Handover and support

Documentation, knowledge transfer and agreed post-launch support.

Security and quality

Controls proportionate to business risk.

We make validation, access boundaries, dependency hygiene, testing and production error handling part of delivery—not a final-week checklist.

  • Server-side validation and safe data access
  • Clear authentication and authorisation boundaries
  • Focused automated tests for important behaviour
  • Release, error-handling and recovery planning
Questions

Before you start.

Can support begin before a full modernisation plan?

Yes. An initial stabilisation period can establish system knowledge and reduce urgent risk before longer-term priorities are agreed.

How do you decide what to modernise first?

We consider business impact, change frequency, operational incidents, security exposure and dependency risk rather than prioritising by code age alone.

Can the application remain live during modernisation?

That is often the goal. Staged changes and compatibility boundaries can reduce disruption, subject to the current architecture and release constraints.

Next step

Bring the constraints. We’ll help shape the path.

Share the business objective, current system, timeline and the decisions you need to make.

Request a consultation
Message us