Implementation
Build a backend feature
We implement one clearly described business process on the server, with rules, storage and documented failure cases.
Ongoing support / Backend development & data architecture
VAT-exempt under section 19 of the German VAT Act
Develop an existing backend
We extend an existing backend within a limited work package, with prioritised tasks and documented changes.
US$3,349.00
Total price · one-offVAT-exempt under section 19 of the German VAT Act
- Review and prioritise up to three related tasks in an existing backend
- A fixed allowance of twenty hours including familiarisation, development and tests
- Protect changed flows with relevant tests
Your enquiry is non-binding. An order is created only when you accept our quotation .
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Service scope
Your result
- A documented development version within the fixed allowance
- Transparent overview of completed, started and open tasks
Included
- Review and prioritise up to three related tasks in an existing backend
- A fixed allowance of twenty hours including familiarisation, development and tests
- Protect changed flows with relevant tests
- Document completed and open tasks and allowance used
Excluded
- Unlimited tasks or guaranteed completion of every submitted idea
- Complete rewrite, on-call availability or unplanned production emergency service
- Hosting costs, new provider subscriptions or major data migration
Which projects does this service suit?
Suitable if …
- An existing backend needs several small related adjustments
- A defined task block should be handled without an open-ended ongoing commission
Not suitable if …
- An entirely unknown backend should be replaced for a blanket fixed-result price
- An acute outage needs immediate on-call availability
Possible overlaps with: Develop an existing application. If you enquire about these services for the same project, we check for duplicated work before commissioning. Your selection also shows a notice.
What this covers
How can we develop an existing backend gradually?
Several small tasks in existing applications often do not fit one feature package. This offer provides twenty hours, including familiarisation, implementation and tests. Up to three related tasks are prioritised before starting. Scope is a time allowance, not an unlimited result promise.
We first check project access and whether the environment works. Tasks are then addressed in agreed order. If one needs more effort than expected, this becomes visible before the allowance is exceeded unnoticed. Handover also shows unfinished work.
A limited development block needs clear priorities
A bug may occupy a few lines yet require familiarisation. Older applications need dependencies and existing behaviour understood. This counts towards the allowance. Prioritisation avoids starting many tasks without meaningfully finishing any.
Testable criteria are agreed for each task. Tests focus on changed flows and relevant regressions. The existing stack remains the basis. A fundamental architecture change is not inserted as supposedly minor maintenance.
Does this sound familiar?
A small backend task list is waiting
Several related changes need work. A fixed block makes available scope and order transparent.
An existing project needs familiarisation
The technical starting point is part of effort. We first check whether project and test environment work and identify specific limits.
An open-ended ongoing commission does not fit yet
The allowance is agreed once, followed by a clear handover. Further work is decided separately, not continued automatically.
How we approach it.
Review tasks and environment
We examine up to three related tasks and the development environment. Acceptance criteria and priority are defined before actual implementation.
Work by priority within the allowance
Familiarisation, development and tests count towards scope. Significant dependencies are identified early so order can be adjusted deliberately.
Hand over progress and remaining work
Documentation lists changed functions, checks performed and open points. Unfinished tasks are not presented as complete.
After handover
Compare the closing report with the prioritised list. Familiarisation, implementation and tests all count; completed tasks depend on the existing system and complexity.
The block includes no permanent operational responsibility. Monitoring, response times and later maintenance need their own expressly agreed service.
Describe the intended function and an example of a successful process. Name existing systems and the roles involved without sharing real customer data or credentials.
After your enquiry, we clarify which data the function processes, which rules it must follow and which systems it must contact. Required documents and test access are agreed separately.
Terms used in this service
What does that mean?
- development allowance
- A fixed agreed amount of work covering described activities. It differs from a promise of unlimited finished functions.
- Acceptance criterion
- A specific condition for checking a change. It describes observable behaviour rather than a vague request to ‘work better’.
- Backlog
- An ordered list of possible tasks. Only expressly agreed, prioritised entries belong to the particular development block.
Before your enquiry
Questions about the offer.
What is included, what do you need and what happens after your enquiry?
The process in detail →Are twenty hours pure coding time?
No. Familiarisation, coordination, development, tests and documentation count towards the allowance. Actual work stays traceable rather than only part of it being visible.
Are all three tasks guaranteed to finish?
That depends on effort. Tasks are prioritised and given criteria; handover transparently shows results achieved within the allowance.
What happens when the allowance is used?
Further work is not automatically billed or started. Progress and open tasks are documented so a deliberate follow-up decision is possible.
Is this an ongoing subscription?
No. It is a one-off development block. Continuation is agreed separately and starts neither through an enquiry nor handover alone.
Could a fixed result be better?
Yes. If one function is already clearly defined, the backend function offer may fit better. The allowance suits several related existing-system tasks.
When does work begin?
We confirm the start and delivery deadline in writing after reviewing your documents. The agreed scope and complete source data determine the schedule.
Which access is needed?
A working project with development access and test environment Prioritised tasks with reproducible faults or clear acceptance criteria Credentials must not be included in the enquiry. Details are agreed only after written commissioning.
What happens after handover?
One written follow-up round is included. The service scope lists the analyses, designs or technical changes covered by the package. We agree additional work with you before it begins.
Read more on this topic
Website maintenance: which tasks are included?
Updates, errors and backups need named owners. Distinguish maintenance, further development and operational support.
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