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.NET Architecture & Backend
RESTful API design and microservice / hexagonal architectures. Security (JWT, OAuth2, Active Directory), resilience and distributed transactions.
Available now for a new engagement
Antoine Rakotomanga · Rako DevFreelance Lead .NET Developer
& Software Architect
Distributed systems · Generative AI · Azure & AWS cloud · React & Angular front ends
Lead Dev
Architect
DevOps
AI
Project management
→ full lifecycle, one point of contact
Founder of Rako Dev. Freelance, from design to production of scalable platforms: microservice architecture, data governance, DevOps industrialization and generative AI. I've carried projects end to end, within large teams, small ones or solo. 100% committed to your projects.
11+
years of experience
35+
successful projects
Niort, FR
Remote · Hybrid · On-site
THEY TRUSTED ME
CDISCOUNTCONFIANCIAWELCOMAICOSDERMASKILL4WEB
01 · ABOUT
Freelance senior .NET architect and lead developer, covering the full lifecycle: from business requirements to production operations.
Experienced in technical referent roles (SQL, MongoDB, GDPR at Cdiscount) and team leadership, I bring a global, pragmatic vision: clean code, testing, observability and data governance for reliable, sustainable platforms. Strong at requirement scoping, I ramp up fast in complex contexts: from business framing to cloud (Azure, AWS) and generative AI.
Passionate and active in the .NET community: I publish weekly hands-on content on LinkedIn (architecture, performance, AI), followed by 3,600+ developers and tech leaders.
02 · EXPERTISE
Six domains, one standard.
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Cloud, DevOps & Infrastructure
End-to-end industrialization: CI/CD, containers, IaC and release management on Azure and AWS.
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Data & Governance
Company-scale data modeling, validation and governance. SQL & MongoDB referent at Cdiscount, GDPR compliance.
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Generative AI & Agents
AI integration in the .NET ecosystem: RAG over knowledge bases, agents, Semantic Kernel, automated AI performance evaluation.
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Performance & Observability
Multithreading, caching, load balancing, load testing and memory-leak hunting. 24/7 production monitoring and alerting.
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Leadership & Delivery
End-to-end technical leadership: requirement scoping, architecture decisions, mentoring, partner relations and product roadmap.
03 · EXPERIENCE & REFERENCES
High-stakes technical engagements.
Lead .NET Developer & Software ArchitectOngoing
Jan 2025 – presentConfiancia · Insurtech
End-to-end platform design, architecture, development and security, with infrastructure governance and DevOps industrialization.
- .NET microservice architecture (ABP Framework) + PostgreSQL, complex React & Angular front ends.
- Azure DevOps setup: CI/CD, containerization, full release management.
- Advanced observability: monitoring, 24/7 alerting, high-availability and resilience strategy.
- Leadership: roadmap ownership, scoping, developer mentoring, direct partner interface.
AI Expert & .NET Developer
Oct 2024 – Apr 2025WelcomAI · AI software vendor
RAG conversational bot querying the entire internal knowledge base.
- Semantic Kernel and Microsoft AI integration in the .NET ecosystem.
- Indexing via Azure AI Search (Cognitive Search), API exchanges with OpenAI and Anthropic.
- Automated AI performance evaluation, unit and integration tests, team enablement.
.NET Developer
Feb 2024 – Dec 2024Confidential client · data back office
Custom back office focused on API robustness and high-volume data processing.
- Secure microservices and APIs, message queuing for massive data flows.
- SQL Server & Snowflake databases, Salesforce, Azure and AWS integrations.
- Terraform + Jenkins CI/CD, performance and cost optimization.
.NET Developer · SQL, MongoDB & GDPR referent
2022 – Feb 2024Cdiscount · Architecture dept.
Company-wide data governance and internal applications for the Architecture department.
- MongoDB and SQL referent: validation of every database project in the company.
- GDPR referent: application compliance and personal-data management.
- Internal .NET APIs: IS cartography, test-data anonymization tool.
.NET Developer
2020 – 2022Cdiscount · Commerce dept.
Microservices and APIs optimizing platform performance, UX and SEO.
- Optimizations: multithreading, caching, Garbage Collector, memory-leak reduction.
- Dynatrace observability and log rationalization across the IS.
- Legacy decommissioning, Selenium automated tests, code reviews and pair programming.
Full Stack Developer / QA Engineer
2018 – 2020Cdiscount · Quality dept.
Architecture modernization and test tooling supporting legacy decommissioning.
- C# automated-test orchestrator (Selenium) + React stats dashboard.
- Selenium / Appium automated tests and non-regression campaigns.
- Team training and support on testing best practices and TDD.
2015 – 2018 · Skill4web (web agency), Cosderma (testing lab) and independent projects · full stack: Angular, React Native, Node.js, PHP, secure payments, real-time chat, geolocation.
04 · LINKEDIN POSTS
I share what I practice.
Weekly hands-on .NET content (architecture, performance, DevOps, AI), followed by 3,600+ developers and CTOs. Posts in French.
.NET
Options Pattern : simplifiez vos configurations .NET en 3 lignes de code
Read on LinkedIn ↗
.NET 10
.NET 10 Preview : plus rapide, plus intelligent, plus efficace
Read on LinkedIn ↗
DEVOPS
Health Checks : ce simple outil peut sauver votre prod (et vos nuits)
Read on LinkedIn ↗
ARCHI
SignalR pour vos notifications ? Vous n'en avez peut-être pas besoin
Read on LinkedIn ↗
IA
IA générative en .NET : brancher un RAG sur votre base documentaire
Read on LinkedIn ↗
.NET
Dette technique vs livraisons sereines : l'arbitrage qui fait la différence
Read on LinkedIn ↗
IA
Semantic Kernel & agents : intégrer l'IA générative dans vos apps .NET
Read on LinkedIn ↗
05 · CONTACT
A project to scope, a team to structure?
Let's talk. Reply within 24h, free 30-minute intro call.