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Independent software studio · SaaS publisher

Digital systems built to last and stay useful.

Keyson frames, builds and operates web platforms, SaaS products and infrastructure layers, with a constant focus on architecture, delivery and code clarity.

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To better understand our approach, explore our About page , read our engineering journal or contact us .

In production

Architecture, delivery and SaaS publishing.

10+

years of engineering practice

04

core capability areas

01

SaaS product published: Cercly

Stack & environments
TypeScript Go Python React Next.js Astro Node.js PostgreSQL AWS GCP OVH Kubernetes Docker Terraform GitLab CI GitHub Actions OpenAI Anthropic Stripe Shopify
Our approach

Useful software is three moves: frame, ship, operate.

Keyson stands for sober engineering. We make defensible choices, ship readable code, and keep operations in view well beyond the first release.

01

Architecture first

We frame structures before writing code: flows, data, integrations, build vs buy. Good architecture makes everything else fast.

02

Pragmatic execution

Audits, team reinforcement, fixed-scope or build & run — we match the intervention to your context and maturity.

03

Product mindset

As a SaaS publisher, we think about support, operations and time-to-value from the first commit.

Services

Six domains, one level of rigor.

We work the full chain: consulting, architecture, development, operations. Every engagement keeps clarity on deliverables, governance and quality.

Browse services

Consulting & architecture

Assessments, technical trajectory, web architecture, API and internal platforms.

Product development

Full-stack delivery, SaaS, back-offices, business applications and internal tools.

Cloud & operations

Automation, reliability, observability, CI/CD, environment and cost mastery.

Production AI

Generative AI integration, workflow automation, pragmatic usage and cost control.

E-commerce & journeys

Commerce architecture, customer journeys and operational flows between content and product.

Team reinforcement

A senior contributor who can absorb technical and product stakes quickly.

Engagement models

A format chosen to serve your real context.

The right format depends on clarity, delivery pace and the level of autonomy you need.

See all engagement models
01

Audit & framing

Short mission to clarify a topic, align stakeholders and reduce uncertainty.

02

Targeted staffing

Autonomous senior contributor embedded in your team with clear technical ownership.

03

Fixed-scope delivery

Defined perimeter with deliverables, governance and quality commitment.

04

Build & run

Continuous responsibility on a digital asset: build, stabilize, evolve.

Published product

Cercly by Keyson.

Cercly is the association management SaaS platform published by Keyson. It centralises members, memberships, events and cash flow to reduce the administrative burden on associations.

  • Member management, memberships and subscriptions
  • Events, cash flow and integrated payments
  • Multi-tenant architecture hosted on AWS
Visit cercly.co
Field experience

Keyson's founder previously worked on consulting and software delivery assignments for organizations such as Edenred, Groupama, Vallourec and SFR.

More than a decade of consulting and delivery on critical systems.

See founder profile
Journal

Architecture notes and field reports.

We publish our technical choices, field reports and framing methods to nourish the conversation.

Read all notes
First conversation

A technical topic, a trajectory to structure?

First contact within two business days. No sales intermediary — straight to the technical team.

Write to Keyson