Njiva Olaf Ranaivoson
Senior Full Stack Software Engineer | Node.js
Salary / Daily rate
78800 Houilles, France
Freelance
Can come onsite
Skills
Languages
About me
Intro
Full Stack Software Engineer with extensive expertise in Node.js, TypeScript, and cloud technologies. Proven track record in developing high-performance billing systems and APIs for major platforms like TheFork and France.TV. Specializes in complex integrations, microservices architecture, and performance optimization, backed by AWS certification and hands-on experience with cutting-edge technologies like Snowflake and Temporal.
Work experience
Full Stack Software Engineer
Emeria TechnologiesFreelance
Jul 2024 - Jul 2025
1 year 1 month
Paris, France
- Development and optimization of billing and property management solutions (COPRO). - Integration of key features to enhance user experience and operational efficiency (Contracts, accounting, and billing). - Active involvement in the "Tech Quality" community, particularly through initiatives focused on improving end-to-end and integration testing. Impacts: ⭐ migration of customers to Okta authentication flow ⭐ Implementation of Future Boxed for better error handling to improve developer experience and velocity
Software Engineer
Planity
Oct 2023 - May 2024
8 months
Paris, France
- Developed a POC for Stripe API integration (Payment Link) - Maintained the appointment management platform - Optimized queries to improve performance Impact: ⭐ Implemented the Stripe Payment Link module, allowing clients to pay a deposit and capable of handling a load of 8 million users
Lead Developer
Bolk
Feb 2023 - Oct 2023
9 months
Paris · Hybrid
- Roadmap planning and prioritization in collaboration with the CTO - Monitoring and managing a fleet of 10 machines deployed across multiple sites in Paris - Implementing a subsidy workflow that led to the deployment of a new machine at TF1 - Improving the back-office system (Node.js / Vue.js) - Maintaining APIs (alerting, monitoring, crash management) - Setting up unit and integration tests for API components (Jest + Cucumber) Impacts: ⭐ Machine installation contracts secured with TF1 and Le Méridien ⭐ +25% performance improvement on vending machines thanks to asynchronous processing (resulting in faster meal distribution) ⭐ Slack/email alerts for sudden temperature changes and machine blockages
Celaneo
Dec 2019 - Mar 2023
3 years 4 months
Paris, France
Full Stack Engineer @TheFork
Jul 2021 - Mar 2023
1 year 9 months
Paris, France
- Enhancing the billing system (country-specific configurations) - Maintaining billing and contract management APIs - Redesigning restaurant settings (availability management) - Datalake: monthly verification of billing using Snowflake (primarily in SQL) and creating catch-up scripts - Migration to TypeScript Impact: ⭐ Improved user experience in managing reservations and availability ⭐ Reduced discrepancies allowing millions of billing to be synchronized successfully from our APIs to Microsoft D365 every month
Backend software engineer @ France.TV
Sep 2020 - Jul 2021
11 months
Paris, France
- Implementing test modules (BDD with Cucumber and Gherkin) - Configuring mutation tests to improve code quality - Collaborating with the operations team to manage the deployment environment (Jenkins / Docker / Kubernetes) - Optimizing API performance (search modules, caching) - Implementing connection modules - Acting as the technical lead for two microservices (authentication and proxy service) - Implementing user consent and marketing email management - Documentation (Confluence) and technical support Impact: ⭐ Developed a unified login interface for apps (Okoo, Slash, France TV, Lumni) using the Gigya API
Backend Engineer @ Spaycial
Dec 2019 - Oct 2020
11 months
Paris, France
- Integration of banking data providers via API (PSD2) into a Node.js back-end system (banks located in France, Poland, and Spain) - Integration of OAuth systems for user authentication through banks - Development of REST services - Technical documentation Impact: ⭐ Westfield customers can automatically receive their loyalty points via the API through synchronization with BNP, Swedbank, and Fintecture
AGILEUM
Aug 2017 - Dec 2019
2 years 5 months
Moka, Mauritius
Associate Software Engineer
Feb 2018 - Dec 2019
1 year 11 months
Moka, Mauritius
- Creation of servers for web and mobile applications using Loopback (Node.js) - Development of a back-office for clients (Angular 4-7 / ReactJS) - Support for existing solutions (SharePoint - React Tsx) - Development of mobile solutions for clients (Xamarin Android/Forms, React Native) - Production deployment on Linux/Windows with process managers - Integration of a DevOps approach into the team process (Docker / Jenkins) Impacts: ⭐ MoKouran: Built the application from scratch — over 50k downloads on the Play Store ⭐ POS Application: Developed from scratch for restaurants in Mauritius, integrated with Oracle Simphony Point of Sale
Développeur Full Stack
Aug 2017 - Jan 2018
6 months
St Pierre, Mauritius
Web/Mobile App development
3D Developer ( Intern )
EON Reality
Sep 2016 - Jul 2017
11 months
The Core, Ebene, Mauritius
- Development of virtual and augmented reality applications - Contributed to the redesign of an iDome simulation for the EON cinema in Bagatelle: sound, animation, and integration - Designed Glsl shaders for EON Studio - Created a simulation management system (desktop) for the EON Reality office (Java) Environment: Unity 3D, EON Studio, 3ds Max, Photoshop, Audacity, JavaScript / C# / Java
Education
University of Technology Mauritius
Bachelor's degree
2015 - 2017
2 years 2 months
School Of Electronics Mauritius
Level 2 IVQ Technician Certificate in Electrical and Electronic Engineering (City & Guilds)
2015 - 2015
2 months
London College , Mauritius
Higher School Certificate
2010 - 2014
4 years 2 months
Licenses & certifications
AWS Certified Developer - Associate 2020
Issued: Jun 2020
GraphQL with React
Issued: Apr 2020
M001: MongoDB Basics
Issued: May 2019
SAT English exam
Issued: Sep 2018
Augmented And Virtual Reality Developer
Issued: May 2017
Windows Server 2012 Fundamentals Workshop
Issued: May 2016
Portfolio
Elmut
Emeria Technologies
Spaycial
