14 YEARS Senior technical consulting · Independent

Expertise that transforms
your critical systems

NSY partners with major finance and insurance players on their most demanding technical missions — and propels ambitious companies into the AI transition with next-generation websites.

14+
Years of expertise
Banking · Insurance
Reference clients
3max
Concurrent clients
Two missions, one standard 01 / Capabilities

A rare dual expertise,
assembled under a single name.

On one side, the experience of a senior consultant who has delivered on the most critical systems. On the other, command of the AI tools redefining web creation today.

01 / CONSULTING

Technical missions for finance & insurance

Scoping, architecture, senior expertise and recovery of complex programmes. A direct presence alongside your teams — no middleman, no broker.

  • Distributed architecture
  • Legacy migration
  • Technical audit
  • DORA compliance
  • Private / hybrid cloud
02 / AI-POWERED WEB

Websites powered by artificial intelligence

For companies ready to take the AI leap. Design, assisted generation, model integration and edge deployment — from brief to launch.

  • Marketing sites & SaaS
  • LLM integration
  • Assisted generation
  • Semantic SEO
  • Edge deployment
Method 02 / Flow

A clear framework,
from kick-off to production.

No marketing fluff. A readable method, concrete deliverables and a single point of contact from start to finish.

01 / DISCOVERY

Scoping

90-minute workshop to understand the need, the constraints and identify the blind spots.

02 / DESIGN

Architecture

Technical proposal with documented trade-offs, roadmap and effort estimation.

03 / BUILD

Delivery

Direct mission or team lead, with weekly reviews and demos every two weeks.

04 / HANDOVER

Handover

Documentation, training for internal teams and 90-day post-launch follow-up.

References 03 / Field

What NSY brings
to your strategic programmes.

A senior intervention without sales overhead. No pyramid, no hidden juniors, no agency PowerPoint: qualified brainpower, directly on your topics.

03 / VALUE

Independence

Direct engagement via EURL — a single contract, a single point of contact.

04 / VALUE

Confidentiality

At ease in regulated environments (ACPR, AMF, GDPR, DORA).

05 / VALUE

Commitment

On-site or hybrid presence in Epieds-en-Beauce, Paris, La Défense or across regions.

Offer Services / 02 lines

Two offers,
designed for very different contexts.

On one side, senior technical missions for financial institutions. On the other, next-generation websites for companies moving to AI. Same level of demand in both cases.

Service · 01
Senior consulting
Technical consulting
finance & insurance

For the technical leadership of major financial players: a senior consultant integrated directly with your teams, without sales overhead, on your most strategic programmes.

Covered areas

  • Distributed architecture and core-system migration (banking, life insurance, asset management)
  • Technical audit, due diligence and expertise for executive committees
  • DORA, GDPR and ACPR / AMF compliance
  • Scoping of complex programmes and turnaround of struggling ones
  • Technical leadership of mixed teams (in-house, contractors, consultancies)

Stack & environments

Java / Kotlin
Python
Kafka · MQ
K8s · OpenShift
AWS · Azure
Terraform
Postgres · Oracle
IBM Mainframe
Format · Day rate or fixed price · Direct engagement via EURL
Scope a mission
Service · 02
Web creation · AI
Websites powered
by artificial intelligence

For SMEs and mid-caps wanting to take the AI leap without fumbling: design, assisted generation and model integration in websites built to convert and last.

What's delivered

  • Marketing site, SaaS platform or business portal — custom design, performant and accessible
  • AI model integration (chatbot, semantic search, content generation, business agent)
  • Modern stack and edge hosting for sub-200 ms load times
  • Semantic SEO designed for the new AI-powered search engines
  • Usage dashboard and roadmap for 6 and 12 months

Tools & integrations

Next.js · Astro
Anthropic Claude
OpenAI
Mistral AI
Vercel · Cloudflare
Supabase
Stripe · HubSpot
n8n · Make
From · €5,800 ex-VAT · turnkey fixed price
Start a project
About PROFILE / CÉDRIC BARME

One single contact,
14 years on the field.

NSY is a one-name practice. Behind every mission, one person — me — with 14 years spent in the technical engine rooms of France's largest financial institutions.

I have designed, delivered and debugged critical systems used by millions of people every day — often without their knowing. I have seen what works, what breaks, and what fails to live up to the sales promise. That experience is now serving a limited number of clients — by design.

14yrs
of senior expertise
5+
ROLES PER MISSION · VERSATILITY
3
concurrent clients, max.

Reference sectors

Retail banking Private banking Life insurance Asset management Payments Fintech

Career

2018 →
NSY · Founder
Founded the EURL: senior technical consulting as an independent — Java EE platform migration, production oversight and cross-cutting development for major European insurers. Since 2026, expanded into AI-powered web creation.
2017 — 2018
Tech lead · Premium consultancy
Full-stack design and development, from blank page to production.
2014 — 2017
Software engineer · Investment bank
Design of real-time trading and risk platforms.

Working principles

  • No pyramid. No hidden junior behind my name, no commercial layer. The person who pitches the mission is the one who delivers it — from scoping to production.
  • Technical honesty. I say when a project is the wrong idea. Better to lose a mission than a client.
  • Three clients maximum. To stay truly available and keep a non-negotiable quality bar.
Hobbies & creations Where code meets 3D

3D for a next-level
web experience.

Outside of client work, I craft 3D animations optimised for the web — lightweight, performant, without slowing your visitors down. Short videos, interactive models, cyber aesthetics. Two examples below.

01 · Animation YouTube channel
© NSY · 3D animation · YouTube channel

3D animation, from my YouTube channel.

An example of a 3D animation built in Blender and published on my YouTube channel. From concept to final render, designed for smooth web playback.

02 · Interactive model Renault R25 · Wireframe
↻ Drag to rotate
© NSY · intellectual property · reproduction forbidden

Interactive 3D model, cyber wireframe.

Neon cyan mesh on a black background, rendered in real time. Click and drag with your mouse to rotate the model. On mobile: swipe with a finger.

Contact Reply within 48 business hours

Let's talk
about your project.

Describe your context in a few lines. I'll come back to you within 48 business hours with an honest read: feasibility, ballpark, and concrete next step.

Technical consulting
Senior mission for finance, insurance, asset management.
Web creation · AI
Next-generation AI-powered website, turnkey.

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