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SOFTWARE & APP DEVELOPMENT

Modern software, built to support real operations

We design and build web applications, mobile apps and internal platforms that replace spreadsheets, legacy tools and manual work with reliable, maintainable systems.

Our work ranges from workflow tools and line-of-business systems through to customer-facing products and partner portals — always with clear architecture, strong engineering practices and a focus on how people actually use the software.

Example full-stack product architecture

Client applications

Responsive
Web app (React / TypeScript) Internal admin UI Mobile apps (iOS / Android) Public self-service portal

API & service layer

Domain-based services with clear boundaries and contracts.

Authentication & identity Core domain services Workflow & approvals Reporting & exports

Data & integration layer

Durable storage, audit and integration points.

Relational DB (PostgreSQL / SQL Server) Blob/file storage Queue and background workers ERP / CRM / finance integrations
Monitoring & logging Security & access control Backups & resilience

What we design and build with clients

Most of our work sits behind the scenes: systems that teams use every day to manage operations, customers and data. We focus on making those tools clear to use, robust, and realistic for your team to run.

Web applications & portals

Browser-based tools for internal teams, partners and customers — designed to be easy to navigate, quick to respond, and dependable under load.

  • • Internal workflow and case management tools
  • • Customer and partner self-service portals
  • • Role-based access, audit trails and reporting

Mobile apps & field tools

Native or cross-platform apps used by staff, engineers or customers on the move, often with offline use and secure sync back to core systems.

  • • iOS and Android apps for field teams
  • • Offline workflows with background sync
  • • Push notifications and secure local storage

Core business platforms

Line-of-business platforms that become the central place to manage contracts, workflows, approvals, assets or services.

  • • Contract, pricing and approval engines
  • • Project and service delivery platforms
  • • Multi-team, multi-region operations tooling

APIs & integration layers

Structured APIs and integration services that sit between your systems, making data flows more reliable and easier to reason about.

  • • REST and event-based APIs
  • • Connectors into ERP, CRM and finance systems
  • • Data contracts, versioning and monitoring

Typical product flow

Users Ops, customers, partners Application UI Web & mobile API & backend services Validation · workflows · business rules Relational DB Core entities & audit Services & queues Background work & events

How we deliver software projects

We treat each project as a long-term system, not just a build. That means clear scope, straightforward architecture and delivery practices that your own team can live with after go-live.

01

Understand & shape

We start with your processes, users and constraints, then agree the scope and shape of the first release together.

  • • Workshops with operations and stakeholders
  • • User journeys and core use-cases
  • • Architecture and delivery outline
02

Design & plan

We define screens, APIs, data structures and integration points, and agree a realistic delivery plan with you.

  • • UX flows and interface outlines
  • • Data model and API design
  • • Incremental release plan
03

Build & integrate

We deliver in short, visible iterations with working software, tests and integrations landing early in the process.

  • • Short sprints with demos
  • • Automated tests and checks
  • • Early integration and data flows
04

Launch & evolve

We support go-live, monitor how the system behaves in the real world and plan the next set of improvements with you.

  • • Cut-over and go-live support
  • • Observability and runbooks
  • • Roadmap for future releases

Modern web application layout

A typical web application we build uses a component-based front-end with a clear separation between presentation, business logic and data access.

Navigation · identity · global actions Main content area Forms · tables · workflows Side panel Filters · context Status · environment · version

Mobile app & sync pattern

For mobile, we design around slow or unreliable networks, making sure important actions still work and data is reconciled safely when the device is back online.

Today’s work Sync & API layer Conflicts · retries · auth Core platform Same APIs used by web

How clients use software we build

Commodities & trading

A trading and approvals platform replacing email chains and spreadsheets, with full audit history and clearer risk controls.

  • • Complex pricing rules captured in one place
  • • Approval workflows and limits built into the system
  • • Live position and exposure views for leadership

Healthcare & services

Patient-facing and staff portals that bring together bookings, records and communications from several older systems.

  • • Single view of patient interactions and history
  • • Self-service portals to reduce admin overhead
  • • Secure data flows aligned with governance

Membership & subscription businesses

Customer platforms that manage sign-ups, renewals, entitlements and billing integrations, with clear reporting for finance and operations.

  • • Clean integration into billing and CRM tools
  • • Role-based access for support and operations
  • • Dashboards for churn, usage and revenue

Planning a new platform or replacing a legacy system?

Whether you are starting from a blank sheet or modernising something that has grown over years, we can help you shape, build and operate software that supports your organisation for the long term.

Email sales@isodev.co.uk