Custom platform engineering
Back-end systems designed around your domain, not around a framework tutorial. Event-driven services, transactional cores, integration layers, migration off legacy monoliths.
EST. 2014 Warsaw · Tallinn
Software that
has to work.
Trust Development is a 62-person engineering studio. We take responsibility for systems where downtime is measured in money — payments, logistics, patient records.
11Years in operation
62Engineers on staff
148Systems delivered
96%Client retention
01 Capabilities
Six things we do, and nothing we don't.
We are deliberately narrow. Every engagement is staffed by people who have shipped the same class of system before — not by whoever happened to be on the bench.
Web applications
Operator consoles, customer portals and dashboards built for people who use them eight hours a day. Accessible, keyboard-complete, fast on a mid-range laptop.
Mobile applications
Native and cross-platform apps for iOS and Android, including offline-first field tooling, background sync, and store release management under your developer account.
Cloud & reliability
Infrastructure as code, CI/CD, observability and on-call practice. We define the SLOs with you first, then build the system that can meet them.
Data engineering
Warehouses, pipelines and reporting layers. Clean contracts between operational and analytical systems so finance and product stop arguing about whose number is right.
Security & compliance
Threat modelling, secure SDLC, penetration test remediation, and the evidence trail auditors ask for under GDPR, PCI DSS and ISO 27001.
02 Method
Five phases. No surprises in month four.
Every project runs the same route. You always know which phase you are in, what it costs, and what has to be true before the next one starts.
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01
Discovery & scoping
Two to four weeks. We interview your operators, read the existing code, and produce a written scope with a fixed price band. If the honest answer is "don't build this", you get that answer before you have spent a development budget.
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02
Architecture
Domain model, service boundaries, data ownership, failure modes. Delivered as a decision record you keep — including the options we rejected and why.
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03
Build
Two-week iterations against a public board. Working software in your staging environment from iteration one. Weekly demo, weekly written status, no invoice for work you have not seen running.
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04
Hardening
Load testing, failure injection, security review, runbooks and dashboards. We rehearse the incidents before production does.
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05
Operate or hand over
We either run it under an SLA with named on-call engineers, or we spend six weeks transferring it to your team with documentation and paired work. Both are fine. Being irreplaceable is not our business model.
03 Selected work
Systems currently in production.
A sample of engagements our clients have allowed us to describe. Names of private companies are withheld where the contract requires it.
Fintech · Poland
Card settlement core
Replaced a nightly batch reconciliation with an event-sourced ledger processing 4.1M transactions a day.
−94%Close time
4.1MTx / day
Logistics · Baltics
Fleet dispatch platform
Offline-first driver app plus a dispatcher console for 1,900 vehicles across six countries.
1,900Vehicles
+22%Utilisation
Healthcare · DACH
Clinical referral exchange
GDPR-compliant referral routing between 240 clinics, with full audit trail and role-scoped access.
240Clinics
99.98%Uptime
04 Stack
Boring technology, chosen on purpose.
We pick tools with long support windows and a hiring market, so your system stays maintainable after we leave the room.
TypeScript
Go
Python
React
Node.js
PostgreSQL
Kubernetes
Terraform
Kafka
Redis
AWS
Grafana05 References
What our clients put in writing.
Quotes published with permission. Full reference calls are available on request during procurement.
“They were the only vendor in the tender who told us our original scope was wrong. It cost them the bigger contract and won them a five-year relationship.”
“Two weeks after go-live we had an incident at 03:00. Their on-call engineer was in our channel before our own monitoring paged us.”
“The handover documentation was better than the documentation for systems our own team wrote. We have not needed to call them since — which was the point.”
06 Next step
Tell us what is breaking.
Send a short description of the problem. A senior engineer — not a salesperson — replies within one working day with either a plan, a question, or an honest "this isn't for us".