Senior .NET delivery for difficult existing systems, blocked backlogs and contained projects
I help UK product teams, agencies and established businesses fix, extend and modernise live
C#, ASP.NET and SQL Server applications without turning every problem into a rewrite.
Typical work includes production defects, fragile workflows, SQL and data problems, APIs and integrations,
contained features and temporary senior capacity.
Available for fixed-scope delivery, confidential agency overflow and longer senior contract allocations,
depending on the requirement.
The focus is on Microsoft-stack systems that already matter to operations or revenue. For contained work,
the aim is to define the smallest useful piece that can reduce risk or unblock delivery; longer requirements
can be handled as an agreed contract or agency allocation.
Legacy .NET application rescue and support
Production defects, fragile workflows, ageing code and undocumented behaviour in live C#, ASP.NET and SQL
Server applications. The aim is the smallest reliable intervention, not a rewrite for its own sake.
Slow queries, brittle stored procedures, failed imports, malformed exports, reporting problems and
recurring manual corrections. The work is scoped around the affected workflow, data and expected result.
Defined backlog items, administration workflows, REST API changes and third-party integrations. For
contained work, scope and acceptance criteria are agreed up front, with testing and handover matched to
the change.
A defined workstream or longer allocation for a product team or agency that needs experienced C#/.NET
delivery. Confidentiality, client boundaries and handover are agreed up front.
The service is designed for operational blockages, delivery pressure and fragile parts of live systems that
need experienced .NET ownership.
A long-standing production defect is blocking users or internal staff.
An import or export regularly needs manual correction.
A blocked backlog item or defined workstream cannot get priority from the core team.
An API integration needs repairing or extending.
A legacy workflow is slow, brittle or poorly validated.
SQL queries or data processes are creating operational friction.
A product team needs temporary senior .NET capacity while hiring or clearing delivery pressure.
An agency needs confidential overflow help on an agreed piece of work.
Existing systems
Legacy application support without forcing a rewrite
Older software does not automatically need replacing. Where an existing application still supports the
business, targeted maintenance can reduce operational risk and remove the defects or bottlenecks causing the
most friction. IncaStack works within the current architecture where practical, documents the boundary and
identifies larger risks without turning every engagement into a re-platforming project.
Not sure how far the change should go? Read the legacy application modernisation
guide for a practical way to compare contained improvement, subsystem replacement and a full rewrite.
C# and ASP.NET production defects
SQL Server queries, stored procedures and data processes
Import, export and reporting failures
Legacy validation and workflow problems
Third-party and API integration changes
Contained features blocked by core-team capacity
Ways to engage
Match the engagement to the work
A known defect, integration or feature may suit contained fixed-scope delivery. If the cause or safest
delivery boundary is unclear, the first step is to establish what needs investigating before a larger piece
of work is agreed. Longer requirements can be handled as an agency or senior contract allocation.
Contained fixed-scope delivery
A defined defect, workflow, integration or feature delivered against agreed scope, assumptions and
acceptance criteria.
Investigation and scoping
Where the cause or safest change is not yet clear, establish the relevant technical context, risks and
dependencies before committing to a larger delivery scope.
Agency overflow or senior contract allocation
A defined workstream or longer senior allocation inside an existing team or agency-led project. Pricing
and terms reflect duration, responsibilities, working pattern and the actual engagement circumstances.
Where this delivery model works best
The strongest engagements have a real operational or delivery problem, an accountable owner, enough access
to investigate safely and a sensible boundary for the first piece of work.
Usually a good fit
Existing live C#, ASP.NET or SQL Server applications with defects, modernisation risk or blocked
backlog work
Product teams that need a contained outcome or temporary senior .NET capacity
Agencies needing confidential overflow or a clearly defined client-delivery boundary
Longer contract assignments where responsibilities, access and working arrangements can be defined
Twenty-four-hour or open-ended support without agreed service levels and appropriate cover
Rewrite-first projects before lower-risk interventions have been assessed
Work with no practical route to the code, environments, data or an empowered decision-maker
Have a difficult .NET system, blocked backlog item or capacity gap?
Send the current situation, desired outcome and any important constraints. I will review the requirement
directly and let you know what information is needed to take it further.