Available for new projects

Laurent
Consultant
développeur

25 years of fullstack development experience — Oracle PL/SQL, WinDev/WebDev/GDS (expert since 2005), PHP, MySQL, PostgreSQL. Database migration, custom ERP, MOA/MOE consulting — banking, insurance, public administration.

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25+
years experience
15+
clients
5
countries
3
languages
Credo
« Move forward and find a solution. »
No problem without a solution. Faced with every technical or human obstacle, I adapt, dig deeper, find the way. This is what has driven me for 25 years.

About me

The story behind the expertise

It all starts in 2000: after graduating from CNAM Paris in networks and databases, I take charge of the IT department at Promaiga for 14 years. These formative years shape my approach: understand the business before coding, build solutions that last, never give up when faced with complexity.

In 2014, I create Altekk and become an independent consultant specialising in Oracle, MySQL and PostgreSQL database migration and in custom ERP and business application development. Since then, I work with Luxembourg banks, major French insurance companies, public institutions and industry — on high-stakes projects: critical migrations, legacy system modernisation, durable management solutions.

Freelance PL/SQL consultant — 100% remote, working in France, Luxembourg and Switzerland.

Expertise

Oracle, MySQL, PostgreSQL Database Migration
Transfer and transformation of complex databases between Oracle, MySQL, PostgreSQL and SQL Server. Existing system analysis, migration plan, rigorous integrity testing, rollback plan and guaranteed operational continuity. Works on live production systems.
Custom Business Application & ERP Development
Design and development of custom ERP, management tools, dashboards and workflows tailored to your business. OOP/MVP architecture, from specification to production deployment. Durable, maintainable and scalable solutions.
Independent MOE / MOA Consulting
Requirements analysis, writing functional and technical specifications, change management, acceptance testing and validation. Interface between business and development teams. Experience managing complex multi-team projects.
PHP, Python, JavaScript Web Development
Responsive sites, REST/SOAP APIs, SSO integrations, Docker, Nginx.
DevOps & Linux Infrastructure
Docker, Git, Linux (RedHat, Debian), Apache, IIS, Citrix — deployment and ops.
Project Management & Leadership
Management up to 4 developers, agile methods, Jira, project steering, training.
All services →

Technical Stack

Databases
Oracle PL/SQLMySQLPostgreSQLSQL Server T-SQLSSISHFSQL
Languages & Web
PythonPHPJavaScriptHTML / CSSJavaSOAP / REST API
DevOps & Infra
DockerGit / SVNLinux RedHat/DebianApache / Nginx / IISCitrix
WinDev / WebDev / GDS
WinDevWebDevWinDev MobileGDSHFSQL

Expert since 2005 — ERP, web portals, mobile applications, HFSQL databases.

Career

Tanguy June 2023 – present Developer

Complete overhaul of a management application — MySQL/HFSQL migration to modern stack, SSO implementation, new data model.

MySQLHFSQLSSOMigration
Momense — Roland Garros Mar – Jun 2023 Developer

Cave flow management application for Roland Garros — business workflow, data migration, SSO connection.

WorkflowSSOMigration
SuisseLife Jul – Sep 2022 Oracle PL/SQL Developer

Critical migration from proprietary server to new Oracle infrastructure — structures, views, stored procedures, guaranteed data integrity.

Oracle PL/SQLMigration critique
Helvetia Assurance — Nantes Feb 2021 – Dec 2022 Oracle Developer Consultant

Maintenance and evolution of a broker quoting ERP under Citrix. OOP development, functional and technical documentation.

OracleCitrixPOOERP
Groupama — Paris Jan – Nov 2020 Developer Consultant

Full MySQL → Oracle PL/SQL migration, application code refactoring and performance optimisation — MVP architecture.

Oracle PL/SQLMySQL → OracleMigration
Ministry of Justice — Paris Jan – Sep 2018 Project Manager Consultant

Creation and maintenance of ten DPJJ applications. Management of 4 developers, MySQL → PostgreSQL migration, Git and Agile implementation.

PostgreSQLGitAgileManagement
Pictet
Credit Suisse
BIL
Groupama
Helvetia
SuisseLife
Sogetrel
Ministry of Justice
Aventurusse
Parle Russe
Tanguy
Momense
Layher

A challenge to solve?

Critical migration, custom ERP, MOA consulting — I always find the solution. Reply within 24 hours.

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