Business systems
Software for a workflow no package covers — job tracking, service management, membership, logistics, compliance records.
- Built to your process
- Role-based access
- Reporting your managers ask for
09Custom software · Sri Lanka
Custom Software Development for Businesses a Package Does Not Fit
Sydon Tech studies how your business actually works, then builds software to match — business systems, automation, integrations and legacy replacements. Free requirement study, written scope, fixed quotation, and support that continues after handover.
- Free requirement study
- Fixed written quotation
- Phased delivery with demos
- Support after handover
When custom is the right answer — and when it is not
We would rather tell you to buy a product than sell you a build you do not need.
If your process is close to a standard one, an off-the-shelf product will be cheaper and faster. Custom development earns its cost in three situations: your process is genuinely different and the difference is where you make money; the systems you already run will not talk to each other; or you have outgrown a spreadsheet that several people now edit at once.
Customers have come to us after buying software that did not fit, and after a previous supplier could not finish the job. In one case we reviewed the requirement and rebuilt from the beginning because patching would have cost more than replacing. We will tell you which of the two you are looking at before you commit.
What we build
Six categories cover most custom work we are asked for.
Business automation
The repeating manual steps between systems: recurring reports, status notifications, scheduled reconciliations, document generation.
- Scheduled jobs
- Notification rules
- Document and report generation
API and integration development
Making systems that were never designed together exchange data reliably — including delivery platforms, payment providers and third-party ERPs.
- REST API design
- Third-party integration
- Error handling and retries
Legacy replacement
Replacing software that has become a liability, with data migrated and reconciled rather than abandoned.
- Data migration
- Parallel running
- Phased cutover
Desktop applications
Where the work happens at a counter or on a shop floor and a browser is not the right tool.
- Offline-tolerant workflows
- Hardware and peripheral support
- Local deployment
SaaS platforms
Multi-tenant products for businesses selling software rather than only using it.
- Tenant isolation
- Subscription and access control
- Usage reporting
How a custom project runs
Six stages. You see working software long before the end.
Requirement analysis · Free
We interview the people doing the work and document the real process — including the workarounds nobody mentions in a meeting. This is the step that decides whether a project succeeds.
Written scope and fixed quotation
A module list, phase plan, assumptions and a fixed price. If something cannot be estimated honestly yet, we say so and scope that part separately.
Design and architecture
Screens and data model agreed before code. Integration points are verified against the other system’s actual API, not its brochure.
Phased development
Working software at the end of each phase, demoed on your data, so direction is corrected while it is cheap.
Testing and QA
Functional testing against the agreed scope, plus the edge cases that come out of the requirement study.
Training, handover and support
Your staff are trained on live data, documentation is handed over, and support continues afterwards.
How we keep a custom project from going wrong
Most failed software projects fail the same few ways. These are the controls we run against each one.
- Scope drift — a written module list with changes quoted before they are built, never billed silently.
- Late surprises — a demo at the end of every phase, on your data, not a slide deck.
- Migration chaos — masters and opening balances migrated and reconciled before go-live, with a parallel run where the risk warrants it.
- Handover abandonment — training, updates and technical support continue after the final invoice.
- Key-person risk — documentation and code handed over, so you are not locked to one developer’s memory.
Custom software questions answered
What counts as custom software?
Anything built to your specification rather than bought off the shelf: an internal system for a workflow no product covers, an integration between systems that do not talk, or a replacement for a spreadsheet that has outgrown itself.
How do you scope a custom project?
We start with a free requirement study — sitting with the people who do the work, documenting the current process including its workarounds — and turn that into a written module list, phase plan and fixed quotation before development begins.
What happens if requirements change mid-project?
Phased delivery exists for exactly this. Each phase ends with a demo, so changes are raised while they are cheap. Changes that expand scope are quoted before they are built, not billed silently.
Do you take over projects another company started?
We have. In some cases we have reviewed the requirement and rebuilt the system properly rather than patching an incomplete one — we will tell you honestly which of the two your situation needs after reviewing the existing code and data.
What support do we get after handover?
Training, updates and technical support continue after the project completes. Our customers write about this more than any other single thing, usually because a previous supplier stopped responding once the invoice was paid.
Related pages
Describe the problem, not the solution
Tell us what is going wrong in the business today. We will tell you whether software fixes it, what it would take, and what it would cost — in writing.