The experience feels fragmented.
Connect the journey across interfaces, APIs and the systems that fulfil the request.
Practice 04 / App Engineering
Better software.
Better software.
Closer to the business.
Build software around the work people need to do. Product thinking, dependable architecture and engineering delivery, in one team.
From the operating model to the working system.Strategy and architecture, embedded delivery, capability transfer.
Make the useful path the easy path.
Design a clear customer journey, then connect it to the systems that fulfil it.
Product design · APIs · Accessible interfacesLess chasing. More progress.
Bring decisions, approvals and business tools into a coherent working flow.
AI-enabled workflows · Integration · Event-driven servicesMove the product forward, safely.
Modernise in working slices while protecting the journeys the business relies on.
Architecture · Automated delivery · Migration01 / The opportunity
When software gets in the way of the work.
Change takes too much effort.
Create useful service boundaries and modernise the estate one capability at a time.
The product needs to earn adoption.
Bring discovery, accessible design and engineering into the same delivery decisions.
Applications / connected experiences
The best architecture earns its place in use.
Build for a clear user outcome. Make the technology support it.
02 / In practice
A better experience, end to end.
Illustrative workflow / Customer serviceOne request.
One request.
One coherent journey.
A customer changes a booking. The interface, business rules and fulfilment system agree on what happens next.
Explore a product workflow- ExperienceSee available choices.
An accessible interface makes status and next steps clear.
- Service boundaryValidate the change.
A defined API checks identity, availability and business rules.
- FulfilmentComplete the request.
Update the system of record and publish the change to dependent services.
03 / The engineering
Product intent. Engineering discipline.
Agree on the useful outcome.
User journeys, acceptance criteria and a release that solves a real problem.
Connect the whole experience.
Interfaces, APIs, events and integration boundaries, engineered together.
Make change dependable.
Automated checks, telemetry, release controls and a tested recovery path.
Explore AWS reference architectures
REVOLEAP / APP ENGINEERING
Reference design / 04Inside the architecture.
01 / SERVICE APIAWS reference design
CLIENTWeb applicationAuthenticated user request
API LAYERAmazon API GatewayRoute + authorize requests
Invoke the configured integration
AWS LAMBDAApplication logicExecute the service’s business rules.
Read and write application state
AMAZON DYNAMODBA focused service boundary
Model access patterns and validation around the product. Configure authorization, retry behaviour and observability.
API contractsScoped IAM rolesRequest telemetry
02 / BUSINESS WORKFLOWAWS reference design
EVENTBusiness applicationPublish a domain event
ROUTINGAmazon EventBridgeMatch configured event rules
Start the configured state machine
AWS STEP FUNCTIONSWorkflow orchestrationCoordinate service calls and application steps.
Invoke tasks with defined retry policies
AWS LAMBDA / SERVICE APIsA process you can reason about
Make failure paths, timeouts and compensating actions explicit. Add approval where the business requires it.
Event contractsFailure handlingExecution history
03 / DELIVERY PIPELINEAWS reference design
SOURCESource repositoryVersioned application change
BUILDAWS CodeBuildBuild + automated checks
Evaluate the release candidate
AWS CODEPIPELINERelease orchestrationCoordinate configured build and deployment stages.
Promote through configured environments
APPLICATION RELEASEShip with evidence and a recovery path
Configure approval gates and deployment checks. Define rollback procedures before promoting production changes.
Automated checksRelease approvalRollback plan
Illustrative architecture. Configured for each workload.AWS / AP
AI-native product engineering
The model is one part of the product.
A useful interaction
Design conversation, streaming, sources and human review around the user’s task. Make uncertainty and failure understandable.
A controlled application
Separate model suggestions from permitted actions. Enforce tenant boundaries, tool permissions and validation in application code.
A measurable service
Release against task evaluations and product tests. Observe latency, completion, errors and the cost of serving each customer.
What success looks likeAgree the outcome.
Agree the outcome.
Engineer the evidence.
The measures depend on your starting point. We define them with you before delivery begins.
A journey that works
Task completion and usability tested with the people who will use the product.
A safe path to release
Permission boundaries, integration tests and rollback designed alongside the features.
Room to grow
Response time, tenant isolation and cost per transaction under realistic demand.
04 / How we engage
A clear route from decision to delivery.
Find the product constraint.
Review the user journey, application estate and the next business capability.
A prioritised product and architecture brief.
Release a useful increment.
Build alongside your team, validate the experience and migrate at the right boundary.
A working release. Evidence for the next step.
Build the ability to keep improving.
Transfer the architecture decisions, delivery practices and product ownership.
A sustainable engineering cadence.
Where to startLet’s start with the layer
Let’s start with the layer
that’s holding you up.
A Leap Assessment brings your leadership team and our partners together to examine the opportunity and shape a useful next step.