Product Engineering
Product architecture built for post-launch pressure.
In short
Product engineering is the design and construction of the software a business sells or depends on: SaaS platforms, ERP and HRMS systems, internal tools, and mobile applications. Offsage builds these on PostgreSQL, Prisma, and Supabase with typed API layers, containerised and deployed on AWS and Docker. Schema and data models are designed for the life of the business rather than the demo. Custom SaaS MVPs start at $25,000, and mobile applications start at $30,000.
How this works
Most products face their third feature request within weeks of launch, which is when a schema designed for the pitch starts fighting the roadmap. We design for that point in advance.
Discovery and scoping is a separately quoted $2,500 phase, credited in full against the build if the project proceeds. That keeps the expensive part — committing to a build — as the last step rather than the first.
What we build
- SaaS MVPs
- ERP and HRMS systems
- Postgres and Prisma data layers
- Typed API surfaces
- Mobile applications
- Internal tools
Typical stack
- PostgreSQL
- Prisma
- Supabase
- AWS
- Docker
- tRPC
Indicative pricing
Directional starting points, not ceilings. Final scope is agreed after a free 30-minute strategy call.
Discovery and scoping
Structured discovery producing a costed scope, an architecture decision record, and a definition of done. Credited in full against the build if the project proceeds.
$2,500
Custom SaaS MVP
Full-stack product build including authentication, billing, and a core feature set. Six to sixteen week delivery depending on scope.
From $25,000
Mobile applications
Native or cross-platform iOS and Android application build with a typed API layer against the existing backend.
From $30,000
ERP and HRMS systems
Internal operations and HR systems scoped per integration count and user role complexity. Quoted after discovery.
Custom quote
See all pricing ranges across every vertical, including retainers and terms.
Questions on product engineering
Custom SaaS MVPs start at $25,000 and typically run six to sixteen weeks depending on scope. A separate $2,500 discovery and scoping phase is credited in full against the build if the project proceeds, so the discovery fee is not an additional cost on accepted projects.
PostgreSQL as the system of record, Prisma as the typed data layer, and Supabase where managed infrastructure is preferred. API surfaces are typed with tRPC. Deployment runs on AWS with Docker for reproducibility. Offsage will propose an alternative if the existing stack makes that the better call.
Yes. Mobile application builds start at $30,000 for iOS and Android, typically as a client against an existing backend rather than a standalone product. If you need both a web product and a mobile app, they are scoped together so the shared API layer is designed once.
Yes, though it is scoped as discovery first. Taking over an existing product always starts with a two-to-four week review of the architecture, the data model, and the deployment setup, producing a written risk assessment. You get that assessment whether or not you continue with Offsage.
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