Real-time payments platform for a regional bank
Replaced a nightly batch system with an event-driven ledger processing transactions in milliseconds, across two active regions.
ThreeKs.com is a software development company that designs, builds, and runs custom cloud platforms for organisations that have outgrown off-the-shelf software — secure, scalable, and fully yours.

Services
Engage us for a single capability or the whole lifecycle. Every engagement is led by senior architects and staffed by engineers who have built and operated systems at enterprise scale.
Custom multi-tenant SaaS and internal platforms, designed and built from first commit to production.
Move legacy monoliths to the cloud without stopping the business, then modernize them piece by piece.
Internal developer platforms, golden paths, and CI/CD that let your teams ship safely and often.
Governed data lakehouses, real-time pipelines, and production AI features built on your own data.
Connect ERP, CRM, and partner systems through secure, versioned APIs and event-driven integration.
Around-the-clock reliability engineering, security operations, and compliance for what we build — and what you already run.
Engineering principles
Security, resilience, and compliance are designed in from the first architecture review — not bolted on before an audit.

Zero-trust networking, least-privilege IAM, encryption everywhere, and threat modelling at design time.
Stateless services, multi-region failover, and load tests that prove capacity before launch day.
Traces, metrics, and logs wired in from the first service, with SLOs your business can read.
Clean architecture, documented decisions, and full IP transfer. No lock-in to us or a proprietary runtime.
How we work
Workshops with your stakeholders to map the domain, constraints, compliance needs, and the outcome that defines success.
A reference architecture, delivery roadmap, and cost model — validated with a working technical spike, not slides.
A cross-functional squad ships production-ready increments every sprint, with demos you can put in front of users.
We run what we build against agreed SLOs, or hand over to your teams with runbooks, training, and shadowing.
Industries
We bring patterns proven in industries where downtime is costly and audits are routine.
Core banking, payments, risk & regulatory reporting
HIPAA-ready patient platforms and clinical data
IoT telemetry, MES integration, predictive maintenance
Real-time tracking, routing, and partner networks
Headless commerce, inventory, and loyalty
Accessible, auditable citizen services
Selected work
Replaced a nightly batch system with an event-driven ledger processing transactions in milliseconds, across two active regions.
Designed a HIPAA-aligned product serving hundreds of clinics from one codebase, with per-tenant encryption keys.
Migrated a decades-old order system to cloud services in four waves while the plants kept running.

About ThreeKs.com
We’re architects, engineers, designers, and SREs who prefer small, accountable teams over large, anonymous ones. The people who scope your project are the people who build it.
A cross-functional team — architect, engineers, designer, QA — embedded in your roadmap.
A defined product or migration wave, delivered against an agreed scope, timeline, and price.
We operate and evolve your cloud platform under a monthly SLA with transparent reporting.
Start a project
Share a few details and a solutions architect will set up a 30-minute call to understand your goals — no sales script.