We help SaaS companies add AI assistants and agents to their product, rebuild revenue-critical systems such as billing, and turn broad ideas into focused MVPs. Your team keeps the roadmap, and we add the engineers.
What we build
Each area is backed by work we've shipped. Start with the one you need now and add others as you grow.
Assistants, search and agents inside your product, connected to your own data and documentation.
Monitoring that shows how your AI performs, where users struggle and what each feature costs, plus routing that sends each task to the right model.
Separate services for plans, payments, invoices, entitlements and notifications that recover cleanly when a payment fails.
Assistants that answer from help docs, troubleshooting guides and known issues, and agents that reply to inbound leads, qualify them and update the CRM.
User roles, journeys, prototypes and a design system agreed before code, so the first release stays small and focused.
Live pricing, automated VAT and export paperwork, and digital certificates, as in the online bullion store we built for Swarnna Taj.
Our approach
The usual way
AI features launch quickly, then nobody can tell whether the answers are right or what each one costs.
How we do it
We track quality and cost for each feature from launch, and send each task to the model that suits it, so spend matches the value a feature brings.
The usual way
Billing logic is tangled into the main app, so one failed payment can break plans and access.
How we do it
Separate services handle plans, payments, invoices, entitlements and notifications, and each one recovers on its own when something fails.
The usual way
A big product idea turns into a big first release that takes too long to learn from.
How we do it
We define user roles, core journeys and MVP priorities, then test interactive prototypes before development starts.
Results
8 published case studies. Every figure on this page comes from one of them.
We built an AI sales agent for a B2B company that replies to inbound leads, works out what they need and qualifies the opportunity. It updates the CRM, prepares follow-ups and passes high-value prospects to the sales team.
We built a generative AI support assistant that searches product documentation, troubleshooting guides, known issues and internal notes. Support agents answer customers faster, without switching between knowledge sources.
We redesigned a SaaS company's subscription and billing workflows as separate services for plans, payments, invoices, entitlements and notifications. Processes that affect revenue are now easier to manage and to recover when something fails.
We helped a growing AI product cut unnecessary model spend and respond faster. Each task now goes to the model that suits it, repeated work is reduced, and cost is tracked by feature and workflow.
We built an AI monitoring layer for a growing SaaS product. The team can now see how the AI is really performing, where users struggle and which responses or workflows need work.
We built a generative AI sales assistant that searches case studies, service information, product documentation, pricing guidance and approved proposal content. It helps the team turn the right material into relevant sales documents faster.
We helped a B2B founder turn a broad product concept into a focused SaaS MVP. Before development started, we defined user roles, core journeys, MVP priorities and navigation, and built interactive prototypes and a reusable design system.
We built an online bullion store for Swarnna Taj, a Dubai boutique going global. Prices sync live with gold markets, VAT and export paperwork are automated, and each purchase comes with a digital certificate.
Services
The services behind our SaaS work. One squad can combine several, so you don't manage separate vendors.
Trust and control
Each customer's data, users and settings stay isolated, including inside AI search and prompts.
Quality, speed and cost are tracked per feature, so you know what to improve and what to switch off.
Retries, duplicate-safe payments and clear failure states keep billing and access correct when a payment or a service fails.
Access controls, audit logs and documented practices give you SOC 2-ready controls and clear answers for enterprise security questionnaires.
We build around the systems you already run. Standards are ones we design for; certification stays between you and your auditor.
Partnership models
Pick the support that fits your team today, whether you need ongoing capacity or one clearly defined project.
A ready team of developers, a project manager and QA specialists who work alongside you and keep new features shipping.
Explore managed teamsSenior technical guidance, a clear roadmap and help with the big product and platform decisions.
Explore fractional CTOA clearly scoped product or platform, delivered through agreed milestones with regular updates and written approval criteria.
Scope a projectWe report risks as quickly as wins. You can talk to the engineers directly and see the project tools and progress at any time.
We own the work, explain problems plainly and stay involved until the agreed result is delivered.
We release the smallest useful version, learn from how people use it and improve it without lowering the quality bar.
We add assistants, search and agents to your existing product and connect them to its data and documentation. Each customer's data stays separate inside AI search and prompts, and monitoring shows quality and cost from launch. Our support assistant, for example, answers questions from product docs and known issues in seconds.
We send each task to the model that suits it, cut repeated work and track cost by feature and workflow, so you can see which features earn their cost. We built this for a growing AI product that needed to lower its model spend and respond to users faster.
An AI sales agent can reply to an inbound lead, learn what they need, qualify them and update the CRM in under a minute. We built one for a growing B2B company. It prepares follow-ups and sends high-value prospects straight to the sales team, at any hour of the day.
A managed squad joins your repositories, tickets and stand-ups, and keeps at least four hours of overlap with your working day. Your team keeps the roadmap and the final say on what ships. You own 100% of the code, designs and IP, as written into the service agreement.
We build and document the controls these reviews check, such as access control, audit logs and encryption. That gives you SOC 2-ready controls and clear answers for enterprise security questionnaires. The audit itself is run by your chosen auditor, and Coretus does not issue or hold the certification for you.
We define user roles, core journeys and MVP priorities, then build interactive prototypes and a reusable design system before any code is written. For one B2B founder, this turned a broad product concept into a focused first release. Work like this is quoted as a fixed scope after a first call.
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Explore Manufacturing & EnergyWe'll suggest the right team and a rough quote range. An NDA is available before you share anything sensitive.