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SaaS > Cloud Infrastructure

Cloud infrastructure built for
SaaS that needs to scale.

Multi-tenant architecture, automated CI/CD, SOC 2 compliance, and FinOps cost optimization — engineered by a team that has scaled SaaS products from seed to Series C and beyond.

Use Cases

Where SaaS infrastructure investment pays off.

Four scenarios where we consistently see measurable results within the first quarter of engagement.

Multi-Tenant Architecture Design

Before

Monolithic single-tenant deployments. Each new customer requires a separate environment, manual provisioning, and dedicated maintenance. Infrastructure costs scale linearly with customer count.

After

Shared multi-tenant architecture with logical data isolation, automated tenant provisioning, and per-tenant resource limits — new customers onboarded in minutes, infrastructure costs scale sub-linearly.

70% lower cost per tenant

CI/CD Pipeline Automation

Before

Manual deployments every two weeks. Releases take a full day of engineering time. Rollbacks are stressful, error-prone, and sometimes require database restores.

After

Fully automated CI/CD with GitHub Actions or GitLab CI, blue-green deployments, automated testing gates, canary releases, and one-click rollbacks that complete in under 60 seconds.

50+ deploys per week

Cloud Cost Optimization & FinOps

Before

AWS bill growing faster than revenue. No visibility into cost per customer or per feature. Over-provisioned instances running 24/7 for workloads that peak for 4 hours a day.

After

Granular cost allocation by tenant and feature, auto-scaling tuned to traffic patterns, spot instances for batch workloads, and real-time anomaly alerts — infrastructure cost as a percentage of revenue drops quarter over quarter.

40% infrastructure savings

SOC 2 Compliant Infrastructure

Before

Enterprise prospects asking for your SOC 2 report and you don't have one. Security controls implemented ad hoc. Audit preparation consumes the entire engineering team for weeks.

After

Infrastructure built to SOC 2 Type II standards from the start — encrypted at rest and in transit, centralized audit logs, RBAC with SSO, automated compliance monitoring, and evidence collection that runs continuously.

SOC 2 ready in 8 weeks

Who This Is For

Built for SaaS engineering and product leaders.

VP of Engineering

Your team is spending more time managing infrastructure than building product. You need a cloud architecture that scales without requiring a dedicated platform team of 5.

CTO

Enterprise deals are stalling because you can't produce a SOC 2 report. You need compliant infrastructure that unblocks upmarket sales without derailing the product roadmap.

Head of Product

New feature rollouts are bottlenecked by deployment complexity. You need CI/CD that lets your team ship daily without fear of breaking production.

CMO / Head of Growth

Traffic spikes from launches and campaigns crash the product. You need infrastructure that auto-scales to meet demand without over-provisioning during quiet periods.

Our Process

From architecture review to production at scale.

01

Architecture Review

We audit your current infrastructure, identify bottlenecks, security gaps, and cost waste. You get a prioritized roadmap — not a 40-page report that sits in a drawer.

02

Multi-Tenant Design & IaC

We design the target architecture and codify it in Terraform or Pulumi. Every resource is version-controlled, peer-reviewed, and reproducible across environments.

03

CI/CD & Observability Setup

We build the deployment pipeline, configure monitoring (Datadog, Grafana, CloudWatch), set up alerting thresholds, and establish runbooks for common failure modes.

04

FinOps & Ongoing Optimization

Post-launch we continuously tune auto-scaling, right-size instances, negotiate reserved capacity, and track cost per tenant — keeping infrastructure spend aligned with revenue growth.

Common Questions

Questions about SaaS cloud infrastructure.

Multi-tenant vs single-tenant — which architecture should our SaaS use?

Multi-tenant is the right default for most SaaS products. You get lower infrastructure cost per customer, simpler deployments, and a single codebase to maintain. Single-tenant makes sense when enterprise customers contractually require dedicated infrastructure, when you're in a regulated industry that mandates data isolation at the compute level, or when your workload profiles vary so drastically between customers that shared infrastructure creates noisy-neighbor problems. We typically recommend starting multi-tenant with logical isolation (separate schemas or row-level security) and offering dedicated instances as an enterprise tier — not the other way around. The architecture should match your pricing model, not the other way around.

AWS vs Azure vs GCP — which cloud provider is best for SaaS?

AWS is the default choice for most SaaS companies and for good reason — broadest service catalog, most mature managed services, largest talent pool, and the most documentation. Azure makes sense when your customers are enterprise Microsoft shops and you need seamless Active Directory integration, or if you're building on .NET. GCP is worth considering for data-heavy products where BigQuery and Vertex AI give you a meaningful technical advantage. In practice, we see 70% of SaaS companies on AWS, and the remaining 30% split between Azure and GCP based on customer base and technical requirements. We'll recommend the right provider based on your product, not our preference.

Should we use Kubernetes or serverless for our SaaS infrastructure?

Serverless (Lambda, Fargate, Cloud Run) is the right starting point for most SaaS products under $5M ARR. Lower operational overhead, pay-per-use pricing, and zero cluster management. Kubernetes (EKS, AKS, GKE) becomes the right choice when you need fine-grained control over networking, have workloads that run continuously and benefit from reserved capacity, or when your engineering team is already proficient with container orchestration. The worst outcome is adopting Kubernetes prematurely — your team spends more time managing infrastructure than building product. We design the architecture to start simple and migrate to Kubernetes when the complexity is justified by the scale.

How do you help SaaS companies achieve SOC 2 compliance?

We build SOC 2 compliance into the infrastructure from day one rather than retrofitting it. This means encrypted data at rest and in transit, centralized audit logging (CloudTrail, VPC Flow Logs), role-based access control with SSO, automated vulnerability scanning in the CI/CD pipeline, and infrastructure as code so every change is version-controlled and auditable. We configure AWS Config or Azure Policy to detect drift from your compliance baseline in real time. For most SaaS companies, the infrastructure controls represent about 60% of the SOC 2 Type II evidence — we handle that entire layer so your team can focus on application-level controls and policies.

How do you manage infrastructure costs as a SaaS product scales?

We implement FinOps from the start — not as an afterthought when your AWS bill crosses $50K/month. This includes right-sizing instances based on actual utilization data, implementing auto-scaling policies that match your traffic patterns, using spot/preemptible instances for fault-tolerant workloads, and setting up cost allocation tags so you can see spend per customer, per feature, and per environment. We also set up budget alerts and anomaly detection so unexpected cost spikes are caught within hours, not at the end of the billing cycle. The goal is to keep your infrastructure cost as a percentage of revenue declining as you scale — typically targeting under 15% of ARR for mature SaaS products.

Why Corsox

SaaS scaling expertise — not generic cloud consulting

We've built and scaled multi-tenant SaaS infrastructure from zero to millions of requests per day. You contract with a US LLC, work in your timezone, and get senior cloud architects and DevOps engineers at 40-60% less than US-only rates through our LATAM delivery team. We understand the difference between a startup that needs to move fast and an enterprise SaaS that needs SOC 2 — and we design the infrastructure accordingly.

Multi-tenant architecture specialists

Tenant isolation, auto-scaling, and per-tenant cost tracking built in

US LLC + LATAM delivery

Senior engineers at 40-60% less than US-only rates, same timezone

Ready to build infrastructure your SaaS can scale on?

Tell us about your current architecture, your growth targets, and where you're hitting bottlenecks. We'll show you what production-grade SaaS infrastructure looks like — and give you a clear plan to get there.