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Senior full stack engineer with 10+ years of experience building business-critical web and mobile products with React, Next.js, TypeScript, and Node.js. I deliver scalable, high-performance applications connected to complex information systems and secure APIs. Autonomous and accountable, I contribute from product scoping and architecture to testing, CI/CD, and production in distributed teams. I also use AI daily for technical scoping, controlled code generation, refactoring, testing, documentation, and critical review.…Senior full stack engineer with 10+ years of experience building business-critical web and mobile products with React, Next.js, TypeScript, and Node.js. I deliver scalable, high-performance applications connected to complex information systems and secure APIs. Autonomous and accountable, I contribute from product scoping and architecture to testing, CI/CD, and production in distributed teams. I also use AI daily for technical scoping, controlled code generation, refactoring, testing, documentation, and critical review.

SAMI HERNANDEZ

Full Stack Developer, Web Developer, Programmer, +3

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Senior full stack engineer with 10+ years of experience building business-critical web and mobile products with React, Next.js, TypeScript, and Node.js. I deliver scalable, high-performance applications connected to complex information systems and secure APIs. Autonomous and accountable, I contribute from product scoping and architecture to testing, CI/CD, and production in distributed teams. I also use AI daily for technical scoping, controlled code generation, refactoring, testing, documentation, and critical review.…Senior full stack engineer with 10+ years of experience building business-critical web and mobile products with React, Next.js, TypeScript, and Node.js. I deliver scalable, high-performance applications connected to complex information systems and secure APIs. Autonomous and accountable, I contribute from product scoping and architecture to testing, CI/CD, and production in distributed teams. I also use AI daily for technical scoping, controlled code generation, refactoring, testing, documentation, and critical review.

Available to hire

Senior full stack engineer with 10+ years of experience building business-critical web and mobile products with React, Next.js, TypeScript, and Node.js. I deliver scalable, high-performance applications connected to complex information systems and secure APIs.

Autonomous and accountable, I contribute from product scoping and architecture to testing, CI/CD, and production in distributed teams. I also use AI daily for technical scoping, controlled code generation, refactoring, testing, documentation, and critical review.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

French

Fluent

English

Fluent

Work Experience

Senior Fullstack Developer at Sogecap (Freelance)

April 1, 2024 - Present

Designed and evolved a unified business portal and its mobile version using React, TypeScript and Node.js, integrated with a complex information system. Owned end-to-end feature delivery with product owners, UX, business stakeholders and developers in a modular frontend environment. Implemented secure authentication and account-linking journeys and strengthened communication between frontend, APIs and backend services. Used AI daily for technical scoping, controlled code generation, refactoring, testing, documentation and critical review. Improved performance and reliability using Jest, code reviews, REST integration, CI/CD and Sonar quality gates.

Senior Fullstack Developer - React / TypeScript / Node.js at Sogecap

April 1, 2024 - Present

Design and evolution of a unified web portal and its mobile version, integrated with existing information systems. End-to-end feature delivery with product owners, UX, business stakeholders and developers. REST API integration, automated testing, code reviews, CI/CD and AI-assisted engineering.

Fullstack Web Developer at BforBank (Crédit Agricole) (Freelance)

April 1, 2022 - March 31, 2024

Built responsive React interfaces for a banking portal used by Crédit Agricole sales teams to manage customers, prospects and contracts. Delivered frontend features and integrated them with Node.js and Java backend services through APIs. Improved maintainability and release quality through code reviews, automated checks, Sonar monitoring and Jenkins pipelines.

Fullstack Web Developer - React / Node.js at BforBank (Crédit Agricole)

April 1, 2022 - March 1, 2024

Built React interfaces for a portal used by Crédit Agricole sales teams to manage customers, prospects and contracts. Delivered frontend features integrated with existing backend services. Contributed to code reviews, Sonar quality monitoring and Jenkins CI/CD pipelines.

Lead Fullstack Web Developer at Mutuelle Nationale des Hospitaliers (Freelance)

June 1, 2017 - March 31, 2022

Led an application redesign to ReactJS, defined technical choices and delivered the most critical product features. Developed claims and contract-management journeys across React, Node.js and Spring Boot services. Mentored 3 developers and contributed to architecture, code reviews and delivery standards.

Lead Fullstack Web Developer - React / Node.js at Mutuelle Nationale des Hospitaliers (MNH)

June 1, 2017 - March 1, 2022

Technical lead for the redesign of a business application using React. Developed claims and contract-management journeys across frontend and backend services. Guided technical decisions and mentored three developers on React, Node.js and Spring Boot.

Fullstack Web Developer at Cat-Amania

January 1, 2017 - June 30, 2017

Developed web applications for the motor-insurance sector. Built a ReactJS/Redux interface for vehicle lookup by registration number. Created REST microservices with Spring Boot/JavaEE connected to MongoDB.

Fullstack Web Developer - React / Node.js at Cat-Amania

January 1, 2017 - June 1, 2017

Developed web applications for the motor-insurance sector. Built a React and Redux interface for vehicle lookup and created REST microservices with Spring Boot and Java connected to MongoDB.

Software Design and Development Engineer at Atos (client: Sogecap)

September 1, 2015 - December 31, 2016

Maintained and enhanced life-insurance information systems. Delivered frontend and backend development in Java/Spring while improving web interfaces. Automated life-insurance account-arbitrage tasks on AS400.

Software Design and Development Engineer at Atos - Client: Sogecap

September 1, 2015 - December 1, 2016

Maintained and enhanced life-insurance information systems. Delivered frontend and backend development using Java and Spring, improved web interfaces and automated account-arbitrage tasks on AS400.