Guided choice
A conversational assistant beside the configurator and calculator that explains options, compares offers and carries a complete quote into the application.
Services / 04
Transactional Systems
Leasing and booking engines, quotes, applications, payments and commerce: systems where the logic has to be right every time, designed and engineered by one team.
What it is
Where every number is someone’s money.
A transactional system is software where a customer commits to something: a lease, a booking, an order, a payment. Behind a simple screen sit prices, rules, availability, contracts and records that must stay consistent, even when many people use the system at once. We design the customer journey and engineer the logic underneath it, from the calculator on the first page to the records the business keeps afterwards.
What we build.
The systems where customers commit, and where a wrong figure has consequences.
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Leasing and finance platforms.
Calculators, quotes, applications and contract management, like the complete leasing system we built for Mooviq.
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Booking engines.
Reservations for events, rentals and services, from the first choice to the confirmation. For Optima Shipping we designed and built a bespoke booking experience for Posidonia.
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Quoting and configuration.
Configurators and pricing rules that turn many variables into one clear offer, then carry it into an application or an order.
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Payments and checkout.
Checkouts connected to payment providers such as Stripe and to point-of-sale systems, with receipts and records the business can rely on.
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Commerce platforms.
Online stores and headless commerce connected to stock, pricing and fulfilment, for sales online and in store.
Intelligence, built in
Commitments, with a guide built in.
We bring intelligence to the moment a customer commits: assistants that help them choose, agents that check applications before they reach your team, and models that notice what looks wrong.
Applications checked on arrival
Agents verify documents and data as they arrive, ask for what is missing and pass complete files to your team for the decision.
Anomaly signals
Models that flag unusual transactions, pricing errors or duplicate records, so people review the exceptions instead of everything.
Transactions we built.
From the calculator to the contract.
How we work
Four stages.
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Model the rules
Prices, eligibility, availability and edge cases are written down and agreed before any screen is designed.
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Design for confidence
Every step shows what the customer is committing to, and every error has a clear way back.
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Engineer for correctness
Calculations and state changes are tested against the agreed rules, simultaneous use is handled deliberately, and access is audited by hand.
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Operate and tune
Monitoring and steady improvement once real transactions start to flow.
Scope
What you get.
Deliverables
- Leasing platforms
- Booking engines
- Quote & application flows
- Pricing & calculators
- Payments & checkout
- Customer accounts
- eCommerce & headless commerce
- Back-office tools
- Integrations
- AI assistants & checks
Built in
- Tested pricing logic
- Row-level security
- Manual code audits
- Payment provider integration
Sectors
- Mobility & leasing
- Banking & insurance
- Shipping & events
- Retail
- Hospitality
Questions
Asked and answered.
Can you build a leasing or financing platform?
Yes. For Mooviq we built the complete leasing system: vehicle catalogue and configuration, leasing calculators, quotes, applications, customer accounts, internal management and online fleet management.
Can AI help customers complete an application?
Yes. An assistant can explain the options, check what is missing and hand over a complete application, while the decision stays with your team.
How do you make sure the numbers are right?
The rules are agreed in writing before design starts, calculations are tested against those rules, and every change to pricing logic is reviewed before release.
Do you integrate payment providers?
Yes. We integrate payment providers such as Stripe, point-of-sale systems and existing finance tools through their APIs, and keep the records the business needs.
Can one system serve online and in-store sales?
Yes. We connect storefronts to stock, pricing and fulfilment so online and in-store channels share the same data.
More services
The rest of the house.
- 01
Enterprise Platforms & Portals
Customer portals, partner platforms, multi-tenant SaaS and the internal systems behind them.
- 02
CRM & ERP Systems
Custom CRM, ERP and operations software: customers, orders, assets, fleets and reporting in one system.
- 03
AI & Custom Models
LLM fine-tuning, domain and speech models, evaluation, private deployment and AI inside real products.
- 05
Product & Experience Design
UX research, information architecture, UI design, prototyping and design systems for complex software.
- 06
Brand & Identity
Positioning, naming, visual identity and brand systems that carry into products and websites.
- 07
Immersive Web & 3D
WebGL and Three.js websites, real-time 3D, product visualisation and 3D production.
- 08
Security & Governance
DevSecOps, manual code audits, row-level security, multi-tenant governance and compliance by design.
