Enterprise SaaS
Multi-tenant B2B platforms with SSO, RBAC, audit logs, and the compliance surface enterprise buyers require from day one.
Certus Web Solutions · The product studio
Ship the product. Not the prototype.
CWS is the Certus ITM arm dedicated to building and operating SaaS — enterprise-grade and consumer-facing — end-to-end. Same senior team, same SLAs, productized.
The studio model
One team, the whole product lifecycle.
Discovery, design, engineering, infrastructure, and 24/7 operations — under one accountable lead. You don't manage four vendors; you manage one outcome.
build :: #4821 main passed
tests :: 1,284 / 1,284 green
deploy :: eu-west · us-east shipped
release v2.14.0 100%
14:02migration applied ✓ 14:04canary 5% → 100% 14:07SLO check passed ✓
Consumer apps & web
Mobile-first products built for engagement and scale. Native iOS / Android plus responsive web — designed by people who ship to app stores every month.
Internal platforms
Bespoke back-office tools, admin consoles, and operations dashboards that replace the spreadsheet your team has been hating for years.
Identity & access
SSO, MFA, SCIM provisioning, role-based access, and audit logging — built once, reused across your product portfolio.
Billing & payments
Stripe, MercadoPago, OXXO Pay, manual invoicing, dunning, revenue recognition. The unsexy plumbing every SaaS eventually needs.
Day-two operations
Once your product is live we don't disappear. Monitoring, on-call, releases, and a quarterly product-health report you actually read.
Why CWS, not an agency
A product studio backed by an IT firm — that changes everything.
Most agencies build the front-end and hand you a Heroku account. We design the architecture, ship the product, run the infrastructure, hold the on-call pager, and renew the SOC 2 report. Same team. Same accountability.
What you get
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A real PM, not an account exec
Your project lead has shipped products before — they argue with you when you're wrong.
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Code you actually own
Your repo, your cloud account, your domain. We can hand off cleanly any time — and it's in the contract.
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Enterprise-ready from sprint one
SSO, audit logs, RBAC, data residency. Sales-blockers we removed years before your competitor faces them.
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Operate or hand-off, your choice
Run it with us under an SLA — or take it in-house when your team is ready. We don't lock you in.
The stack
Opinionated defaults. Negotiable when it matters.
Frontend
- Next.js · TypeScript
- React Native (Expo)
- Swift · Kotlin
- Tailwind · CSS architecture
Backend
- Node.js / NestJS
- .NET 8
- Go · Python
- GraphQL · REST · gRPC
Data
- PostgreSQL · MySQL
- Redis · Elasticsearch
- BigQuery · Snowflake
- Microsoft Fabric · Databricks
Cloud
- Azure · AWS
- Static Web Apps · Plesk
- Kubernetes · Docker
- Terraform · Bicep
DevEx
- GitHub Actions · Azure DevOps
- Linear · Notion
- Sentry · Datadog
- Storybook · Playwright
Identity & pay
- Auth0 · Entra ID
- Keycloak (self-hosted)
- Stripe · MercadoPago
- OXXO Pay · SPEI
