Webapps · Platforms · Custom tools

Technology

Platforms, webapps, websites, models, calculators, and custom-made solutions. Supports consultancies, never competes.

What we build

Webapps

Standalone calculators and models, built to your brief. For example a cost-benefit decision tool: a decision tree for year one, a Markov model out to a lifetime horizon, every input a slider or field, and results in seconds with a printable report.

Platforms

Multi-user portals: models, dossiers, training, analytics. For example a platform around one company's products with a standalone cost-effectiveness and budget impact model, a value dossier, training for sales and medical teams, user management and permissions, and overview analytics.

Custom tools

Automation, document pipelines and AI assistants.

Websites

Built by TECH, shaped by Marketing. Widgets for the company website can show an interactive preview and open the full platform, bringing qualified traffic in.

The team behind every build

Full-stack developer

Architecture and technical planning, CI/CD, core pages, integrations, deployment and handover.

Backend developer

APIs and data layer, CMS modelling, webhooks, security headers, redirects.

Frontend developer

Layouts and templates, responsive design, motion, accessibility, performance.

UI/UX designer

Style system, user journeys, wireframes, UI kit, high-fidelity screens, design QA.

QA / Tester

Test plans, device and browser checks, security scans, Lighthouse, post-launch checks.

DevOps

CI/CD, monitoring and uptime, backups and recovery, WAF and rate limiting.

Security specialist

Header and CSP review, vulnerability triage, pre-launch sign-off. Added for regulated clients.

AI engineer

Assistants and RAG: retrieval design, evaluation, guardrails, monitoring. Added when needed.

Try them yourself

Cost-benefit decision tool

demo-coreva.pages.dev

Multi-product model platform

rjc-demo-platform.vercel.app

Platform admin analytics

rjc-demo-platform.vercel.app/admin

Demo values and illustrative data only.

Your department. Extended.

No retainer. No lock-in. No dependency.

Book a call