High-On Innovation builds subscription software that holds up when customers arrive. We handle the parts that decide whether a SaaS product survives: multi-tenant architecture, billing and plan logic, permissions, integrations, uptime and the security evidence enterprise buyers demand. Whether you are launching a new SaaS product, replatforming an old one or preparing for larger customers, we engineer for the scale you are heading towards.
We design tenant isolation, data partitioning and permission models properly at the start, because retrofitting multi-tenancy into a single-customer product is one of the most expensive rebuilds in software.
Plans, trials, upgrades, downgrades, proration, usage-based pricing, dunning and failed payment recovery — built and tested against real billing edge cases, not just the happy path.
SaaS products live inside their customers' stacks. We build documented public APIs, webhooks, SSO and connectors to the CRMs, payment systems and tools your buyers already use.
For live products that have outgrown their original architecture: we cut infrastructure cost, remove performance ceilings and modernize systems without interrupting paying customers.
The features that lose enterprise deals are rarely product features. They are SSO, audit logs, role permissions, data residency, uptime commitments and security documentation. We build those into the platform early, so a large contract does not trigger a six-month engineering scramble.
These nine capabilities separate a product that demos well from one that can carry thousands of paying customers.
Clear separation between customer data, enforced at the database and application layers, so one customer can never reach another's information.
Granular access control with organisations, teams, roles and invitations — a standard requirement for any business buyer.
Recurring plans, metered usage, mid-cycle changes, taxes, invoices and recovery of failed payments.
Guided setup, sample data and progress tracking that move new sign-ups to first value quickly and reduce early churn.
Internal dashboards for your team to manage accounts, resolve issues, impersonate safely and audit activity.
A documented, versioned API with keys, rate limits and event webhooks, so customers and partners can build on your product.
SAML and OIDC integration, directory sync and session policy for customers whose IT teams control access centrally.
Event tracking, cohort views and churn signals so growth decisions come from usage data rather than opinion.
SaaS engineering is judged over years, not at launch. Our process is built around the decisions that are expensive to reverse later.
We map your customer segments, pricing model and growth plan first, because tenancy, billing and permissions all follow from commercial decisions.
Tenancy strategy, database design, service boundaries and scaling approach, documented with the trade-offs and the cost implications of each option.
Accounts, roles, billing, onboarding and admin — the foundation everything else sits on — built and tested before feature work expands.
Two-week cycles with working software, automated testing and continuous deployment, so releases stay routine instead of risky.
Access control, encryption, logging, backups, monitoring and the documentation needed for security reviews and SOC 2 style questionnaires.
Ongoing performance tuning, cloud cost reduction and feature evolution as your customer base and contract sizes grow.
We settle tenancy, data and permissions first. These are the decisions that cost the most to change once you have customers.
Billing is where most SaaS products leak revenue. We build and test the awkward cases — proration, refunds, plan changes, failed cards — not just new sign-ups.
SSO, audit trails, permissions and security documentation are treated as core platform work, so large deals are not blocked by engineering gaps.
We design infrastructure that scales with revenue instead of ahead of it, and review cost as part of ongoing engineering.
Tell us about your product, your customers and where it is straining. We will map the architecture and the delivery plan.