Software products.
Built for your
customers.
We design, build and improve customer-facing software: SaaS platforms, subscription services, and web and mobile applications. From a new product to an established application, we connect what your users need with the engineering behind it.
Discuss your productExplore product engineering ↓Make room for
your next idea.
You’re booked.
Studio room
Tomorrow, 10:00
Wherever you work.
For the people launching
and growing a software product.
Founders & product owners
You have a defined customer problem or a prototype. Turn the proposition into a tested journey, clear scope and a usable first release.
Businesses launching a digital service
You want customers to access, subscribe to or transact with a service online. Bring the business model; we help shape and build the product.
Teams with an existing product
You need new capabilities, mobile access or improvements to reliability and delivery. Start with the application you have and retain what works.
What we build.
Products your customers use.
The product is the service your users come for: a workspace, a subscription, a booking or a digital experience. We build the customer journey and the administration behind it.
SaaS & subscription products
Software customers access through an account or paid plan. Scope can include onboarding, workspaces, roles, subscriptions, billing and usage reporting.
For example: a specialist planning or professional-service platform.Customer-facing web applications
Browser-based services where users find information, complete a task or transact. Connect search, accounts, payments, records and notifications.
For example: a booking, learning or membership service.Mobile applications
iOS and Android experiences connected to your product. Design around device capabilities, connectivity, notifications and app-store delivery.
For example: a subscription service used on the move.Transactional digital platforms
Products connecting different participants through listings, requests or transactions. Define each role, the operating rules and the team’s administration tools.
For example: a specialist service marketplace.The supporting product capabilities
Onboarding · Accounts & permissions · Payments & subscriptions · Content & search · Notifications · Integrations · Analytics · Administration
Scope follows the product’s purpose. These are options, not a standard bundle.Is this the right Revni service?
Choose product engineering when customers use the software as a product or digital service. For employee workflows, explore Business Software. For secure access to an existing customer or partner process, explore Portals. For connecting existing applications, explore Systems Integration.
Start at the stage
your product is in.
A new product
Clarify the user, proposition and assumptions. Test the journey, then agree the smallest release that delivers a useful result.
Output: product scope, experience direction and a prioritised release plan.A prototype ready for real users
Assess what can be retained. Add production data, access controls, integrations, testing and release foundations around the validated experience.
Output: a production-ready increment with agreed acceptance checks.An established product
Review code, dependencies, deployment and known issues. Prioritise new features, performance, reliability or modernisation around customer and business needs.
Output: an agreed improvement backlog and a safe delivery approach.- Find availability and sign in
- Reserve and receive confirmation
- View or cancel a booking
- Handle conflicts and failed updates
- Add recurring bookings
- Introduce membership plans
- Extend to mobile
- Improve speed and completion
Agree acceptance criteria and deferred features. A prototype tests an idea; production also needs secure access, reliable operation and a team ready to support it.
Mobile access. AI features.
Part of a useful product.
The journey travels
with your users.
Build iOS and Android experiences around real tasks. Agree device needs, connectivity, notifications and app-store delivery alongside the web product.
Select React Native with Expo or Flutter to fit the product, team and device requirements.
A useful feature.
A measurable boundary.
Add assistance, extraction or knowledge retrieval where it supports the user’s task. Evaluate representative examples before release.
Agree data access, cost, latency, fallback behaviour and human controls. Keep consequential actions under explicit control.
Know what we handle.
Know what you receive.
Scope a complete product engagement or a defined part of your roadmap. Agree responsibilities at the start, including how we work alongside your product and engineering team.
From discovery through release
Product discovery, UX/UI design, application development, integrations, testing and deployment preparation can sit within one agreed scope.
Alongside your existing team
Define the feature or improvement, technical boundaries, review process and release ownership. Preserve the conventions and working parts of the product.
A working rhythm you can review
Name a product owner and decision-makers. Agree review intervals, demonstrate working increments and keep priorities visible. Assess the impact of changes on scope and timing before committing to them.
Concrete outputs
- Design & decisions
- Agreed journeys, interface designs, scope and key implementation decisions.
- Software & verification
- Application source, integrations, tests and evidence against the agreed acceptance criteria.
- Release & operation
- Deployment configuration, release guidance and operating documentation for the maintaining team.
Agree intellectual-property terms, repository access, cloud and app-store accounts, third-party licences and handover responsibilities in the engagement.
Technology for the product.
Chosen for the work ahead.
Your users, existing environment and maintaining team shape the stack. These are implementation options across the product lifecycle.
Design and engineer the complete experience, from the interface to accounts and business behaviour.
Design & UI development
Figma
Storybook
Web interfaces
React
Next.js
TypeScript
Application services
Node.js
NestJS
Python
FastAPI
.NET
Mobile applications
- React Native
Expo
Flutter
Data & caching
PostgreSQL
MySQL
MongoDB
Redis
Identity & accounts
Auth0
Keycloak
Amazon Cognito
Payments & subscriptions
Stripe
Paddle
Content management
Sanity
Contentful
Payload CMS
Choose an operating environment your team can release, observe and support.
Cloud platforms
- AWS
Google Cloud
Microsoft Azure
File storage
- Amazon S3
- Google Cloud Storage
- Azure Blob Storage
Infrastructure & releases
Docker
Terraform
GitHub Actions
Automated testing
Playwright
Vitest
pytest
k6
Reliability & monitoring
Sentry
OpenTelemetry
Grafana
Understand real product use, control rollout and build evaluated AI features.
Analytics & rollout
PostHogAmplitude
LaunchDarkly
AI models & services
OpenAI
Claude
Gemini
AI orchestration
LangChain
LangGraph
We agree identity, data ownership, platform costs and support responsibilities before selecting the implementation.
A clear route to release.
A plan for what follows.
Design and engineering work against the same purpose. Each stage leaves a concrete output for the next decision.
- 01
Discover
Observe the user’s task and constraints.
Prioritised scope & assumptions - 02
Prototype
Test the proposed journey before building.
Flows & tested interface direction - 03
Build
Deliver a complete working increment.
Application & acceptance evidence - 04
Release & learn
Roll out, observe and agree the next iteration.
Monitoring, feedback & support plan
Clear ownership.
Beyond launch day.
- Your team brings
- A product owner, user access, commercial priorities and contacts for the systems involved.
- Revni delivers
- Agreed journeys, working software, release pipelines and operating documentation.
- We agree together
- Acceptance, hosting, analytics, support and release ownership. Define how issues and user feedback enter the next development cycle.
What shapes
cost and timing?
Start with the user journey, current product and target outcome. We use these to define scope, dependencies and a realistic delivery plan.
Product scope
User roles, workflows, web and mobile platforms, design readiness and acceptance requirements.
Technical dependencies
Existing code, integrations, migration, data quality, security and performance needs.
Delivery conditions
Access to users and systems, decision turnaround, release constraints and the availability of your team.
What happens after launch?
Agree maintenance and support separately from ongoing product development. Define responsibility for incidents, dependencies, monitoring and releases, then prioritise improvements using customer feedback and product analytics. Support hours and response commitments belong in the agreed scope.