Custom software engineering, IT consulting and high-load API development since 2022. We design the architecture, build the system, and hand it over documented — in repositories you own.
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How a browser request reaches your data and comes back, and where each hop can fail.
PHP 8.3 · Laravel · Node.js
Stateless request handling behind the gateway. Sessions and locks live in Redis rather than in process memory, which is what makes horizontal scaling possible at all.
Staging plus production, automated deploys, daily backups.
Illustrative reference topology. It shows how a deployment changes shape with load — it is not a performance claim, a benchmark, or a description of any specific client system.
Every engagement produces artefacts you keep: working software in your repositories, an architecture record, a deployment pipeline and a written handover.
Scalable web applications and mobile backends built to a written architecture.
Containerised deployments, pipelines and observability on AWS or Azure.
REST and gRPC service layers that connect the systems you already run.
Independent review of an existing codebase, architecture or delivery plan.
No phase ends with a status update. Each one produces an artefact that is reviewable by your own engineers.
A working session with the people who run the system today. We come out with the domain model, the integration map, the constraints nobody wrote down, and a written brief you can circulate internally.
Technical brief · architecture options · risk register
Decisions recorded with their trade-offs, so a future engineer can see why the system looks the way it does. Delivery is sequenced so the riskiest assumption is tested first, not last.
Architecture decision records · delivery plan · estimate
Two-week increments against the agreed scope. Automated tests and the deployment pipeline exist from the first increment — retrofitting either one costs several times what building it in does.
Working increments · CI pipeline · demo at each close
Load profile verified against the numbers agreed in discovery, security review completed, runbooks written, and a release that can be reversed in one step.
Test evidence · runbooks · production release
Either we hand the system to your team with a walkthrough and documentation, or we keep running it under an agreed response window. Both are contractual; neither is a lock-in.
Handover pack · or managed operation agreement
A stack you cannot check is not information. These are the tools we work in daily and are prepared to be questioned on.
Component architectures with a real accessibility budget, not a checklist at the end.
Service boundaries drawn around data ownership, not around team structure.
Schema and migration strategy agreed before the first table exists.
Infrastructure in version control, with the same review process as application code.
The Solution Scope Matrix turns six engineering inputs — system class, operating scale, surfaces, existing estate, assurance level and who runs it — into delivery phases, an effort band and a team composition.
It returns no price, on purpose. A figure derived from six dropdowns could not be substantiated, and we would rather show you the shape of the work than a number we would have to retract.
Delivery phases
With an elapsed-time band for each one, not a single optimistic total.
Team composition
The roles the work needs, including the ones clients usually forget.
Schedule drivers
The specific risks your selections imply — cutover, vendor pace, evidence.
Contract shape
How the engagement would be structured and how often we report.
Nothing on this page claims a certification, an award or a client we cannot evidence.
Every engagement starts with a written technical brief: the domain model, the integration map and the decisions we are making, with their trade-offs recorded.
Code is written into infrastructure you own from day one. There is no vendor lock-in step at the end of a project because there is nothing to hand over that you did not already hold.
25dbr OÜ is not certified to ISO/IEC 27001. Our internal controls — access management, change control, logging and supplier review — are modelled on Annex A, and we say so precisely rather than implying a certificate we do not have.
Scope figures come from a published model with documented weights. When a number changes, we can show which input moved it.
Something not answered here? Email info@25dbr.com or call +359 877618304 during Monday to Friday, 09:00–17:00 Europe/Tallinn (EET/EEST).