About
REELIANT designs, modernizes and maintains critical digital systems, with a central requirement: trust over time.
Our craft
"Execution is not a detail. It is what separates an intention from a system that holds."
Make the existing system evolve without breaking operations.
Architect, integrate and ship services that hold the load and integrate cleanly into the existing stack.
Pilot operations: supervision, security, compliance, evolvability. Over the long term.
Our team
Architects, Lead Devs, Developers, Product Owners, DevOps: we design and operate services running in architectures in production. Java stack, JavaScript ecosystem, hosting in France, application security, our technical choices are driven by robustness, not trends.
We hire sharp profiles who share our obsession with clean code and work done right.
Our values
Quality is not negotiable. Systematic code reviews, automated tests, no shortcuts. A service operable over time is decided at design time.
We handle delivery and operational maintenance. We don't disappear after go-live.
Our technology choices come from field experience. We pick what we know how to maintain long-term.
Recognition
Responsibility · CSR
Innovation · R&D
REELIANT is approved under the Innovation Tax Credit (CII) scheme for its work in designing and engineering innovative digital systems. Approval renewed in 2026 and valid until 2030.
REEL(IA)NT by design
AI is not a black box at REELIANT. We build systems where it remains a piloted, auditable, predictable component. No off-the-shelf miracles: just serious engineering, from sketch to production.
AI remains a component you control, not a black box. Every decision is traceable and explainable.
Your data never leaves your secure perimeter. RAG architecture, hosting in France, zero public training.
We choose the right lever (LLM, RAG, predictive) for your context, and we monitor what it produces in real conditions.
AI powers our own workshop, so we can focus on what matters: architecture, security, rigorous testing.
Where we work
Our teams work on site and clients drop by regularly. It makes exchanges simpler.
10 rue Auber, 75009 Paris View on Google Maps →The Workshop
A team of developers, architects and engineers who make rigor a culture, not a constraint.
Senior team · average 12+ years of experience, 9 years on average at Reeliant
Co-founder & Co-CEO
24 years of experience · co-founderOur final validation test is simple: would we be proud to use this tool ourselves? If the answer is no, we don't ship.
Co-founder & Co-CEO
23 years of experience · co-founderSI maturity determines AI relevance. On readable systems, AI is a real lever. On opaque systems, it mostly amplifies the confusion.
DevOps & Security Lead
23 years of experience · 9 at ReeliantIn critical systems, the unexpected is a risk you reduce through repeatability. DevOps is the tool that ensures every deployment is a non-event.
Software Engineering Lead
19 years of experience · 9 at ReeliantYou don't build software for today. You build it for three years from now.
Technical Project Director
15 years of experience · 9 at ReeliantBetween the brief and production, there's everything we anticipated.
Technical Project Director
12 years of experience · 9 at ReeliantA successful technical project starts with a team that speaks the same language as its client.
Workshop notes
§01 · Observation · Lead developer
[ Context : Critical systems · 5 years at REELIANT ]
We work on systems that have real impact. Every line of code matters — and that changes everything about how we work.
§02 · Observation · Full-stack developer
[ Context : Critical run · 2 years at REELIANT ]
What convinced me to join REELIANT was the rigor. No technical debt accepted out of laziness, no shortcut justified by the sprint.
Join the Workshop
We recruit engineers who own the full lifecycle: design, development, production, operational maintenance.
A demanding environment, but rare: one where your work has real and lasting impact.
You build and operate infrastructure for systems that can't afford downtime. No bureaucracy: documented technical choices, measured responsibilities, a scope that grows with trust.
Responsibilities
Profile
You take ownership of architecture and development of high-demand applications: performance, security, maintainability. You lead technically without creating bureaucracy.
Responsibilities
Profile
You define the architecture of our clients' systems: digital identity, applied AI, critical IS modernization. You translate business or regulatory requirements into grounded technical decisions.
Responsibilities
Profile
You lead technology projects in a context where AI is changing the rules. You understand concretely what that means for a backlog, an estimate, a client relationship. You bring structure without overhead.
Responsibilities
Profile
Your profile doesn't match exactly but you recognise yourself in our approach? Spontaneous application.
30 minutes to review your context and see if we can help.
Talk to the workshop