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Binh L.BL

Binh L.

Senior Backend Engineer .NET / Azure | SQL Perf

€700/day
2 projects
Lyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Binh

Senior Backend Engineer specialized in .NET / Azure, I work on critical business systems requiring performance, reliability, and security.

I support teams on:

- Design and evolution of backend APIs and platforms
- SQL performance optimization (queries, indexing, volume, contention)
- Implementation of robust and scalable Azure cloud architectures
- Application security (authentication, RBAC, secrets management, API security)

I have significant experience in high-constraint environments (payment, finance, core business systems), with challenges related to concurrency, idempotency, data integrity, and observability.

Azure certified (DevOps & Architect), I am comfortable with the entire Microsoft ecosystem:
C#, .NET, Azure, Azure DevOps, SQL Server / Azure SQL.

I work on:

- Monolithic and microservices architectures
- Event-driven systems
- Performance, reliability, and scalability topics

I can contribute independently or support teams as a senior technical referent, while remaining hands-on.

Available for part-time or ad-hoc missions (optimization, technical audit, backend support).
  • Vietnamese

    Native or bilingual

  • English

    Fluent

Can work on-site
Lyon (up to 50km), Lyon (up to 100km)

Experience

  • BPCE Payments Services
    Senior Software Engineer
    BANKING AND INSURANCE
    May 2023 - Today (3 years)
    Senior engineer in the Bank as a Service subsidiary of the BPCE group named XPollens. Refactoring of a monolith towards a microservices architecture. My role in the squad is, in addition to rewriting functionalities according to craft principles, to support internal developers on craft as well as DevOps/DevSecOps.

    I also assist the Lead Developer and management with Azure. This involves implementing policies to reduce storage costs and best practices for security.

    Finally, I serve as the rotating Scrum Master.
    Azure DevOps Microsoft Azure Azure Data Factory C# Monitoring Datadog DevSecOps Domain Driven Design
  • ISAGRI
    Tech Lead
    SOFTWARE PUBLISHING
    October 2022 - April 2023 (6 months)
    Tech lead in a Safe agile team. WPF application. My role was both coaching on craft and clean code practices (SOLID, introduction to DDD). I also played an advisory role on Azure issues such as migrating old NoSQL databases to Azure Storage.
    Microsoft Azure Agile Methodology Software Craftsmanship
  • Inqom
    Senior Software Engineer & Scrum Master
    SOFTWARE PUBLISHING
    August 2021 - October 2022 (1 year and 1 month)
    Lyon, France
    Senior developer among several experts (Microsoft MVPs, IT book authors). Full cloud environment, microservices architecture. Practices DDD, TDD, BDD, DevOps.
    DDD Microservices TDD Software Craftsmanship Microsoft Azure Azure DevOps ASP.NET Core BDD SQL

Reviews

5.0

Out of 2 ratings

AD

Account deleted

Reviewed on 10/25/2023

top et pro !
GautierG

Gautier

Adecco Group France

Reviewed on 7/13/2021

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Education

  • Master 2 MIAGE (Distributed Systems Option)
    Université Paris XII
    2011
    Le Master de méthodes informatiques appliquées à la gestion des entreprises (MIAGE) est un diplôme universitaire français de niveau bac+5, alliant une double compétence en informatique et en gestion, destiné à former des cadres d'entreprise experts en ingénierie et management des systèmes d'information. Les formations MIAGE sont dispensées dans vingt universités françaises. En ce qui concerne l'option Systèmes Distribués: Son objectif est de former des cadres dans le domaine des systèmes d'information distribués. C'est pourquoi cette spécialité a été mise en place pour s'adapter à cette nouvelle donne du monde professionnel. L'axe prioritaire de cette spécialité est de former des cadres dans le domaine des Systèmes d'information distribués, à partir d'une population d'étudiants issus du. M1 MIAGE ou d'un diplôme équivalent en mettant l'accent sur la distribution des systèmes d'information et les conséquences sur la conception.
  • University Diploma in Technology in Statistics and Decision Informatics
    IUT Grenoble II
    2007
    Le DUT de statistiques et informatique décisionnelle (STID) est une formation Bac + 2 accessible après obtention d’un bac généraliste (en priorité ES ou S) ou professionnel, d’une validation des acquis de l’expérience. Cette formation courte (2 ans) a pour objectif de former les étudiants pour qu’ils puissent rapidement intégrer les services informatiques, marketing ou de gestion des entreprises ou des sociétés dans des secteurs variés. La formation est organisée sur deux ans, soit 4 semestres. Le programme comprend des modules d’informatique, mathématiques, statistiques, d’économie, d’expression et communication. Chaque année est ponctuée par une période de stage en entreprise obligatoire d’un minimum de 10 semaines.

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