Nathan Gemis

Senior Software Engineer

Salaire / Taux journalier

Valence, Province de Valence, Espagne

Freelance, ouvert au CDI

À distance uniquement

Expertises

ReactNodeNestTypescriptLLMs / Large language modelsDéveloppement FrontendDéveloppement BackendDéveloppement FullstackMicroservicesDéveloppement MobileJavascriptVueAngularDjangoFlutterIOSMongoDBBase de données SQLAndroidPythonAWSPostmanDéveloppeur BackendTech LeadSupabaseGitVercelBitbucketDockerCMSJiraAffinity DesignerRESTful APIsProduct ManagementDéveloppeur FrontendAutomatisations No-coden8nDéveloppeur FullstackDesign ThinkingAffinity PhotoKanbanScrum

Langues

Espagnol (Maternelle)Français (Maternelle)Anglais (Courant)Portugais (Courant)

À propos

Introduction

Technical Lead passionné par la création de software products. Depuis plus de 7 ans, j’accompagne startups et scale-ups dans la conception de plateformes scalables, en combinant backend engineering, solution architecture, AI et product thinking pour transformer des idées en produits à fort impact.

Liens

Expérience de travail

Technical Lead - Customer Mobile App

Substantial GroupFreelance

juil. 2025 - Présent

1 an 4 mois

Lead backend development and integration for YouFibre's customer mobile applications, supporting a team of 6 developers working across iOS and Android platforms. Focus on building robust backend services and seamless mobile-backend integration to deliver exceptional customer experiences. Key Responsibilities: • Provide technical leadership for backend services supporting mobile applications across iOS/Android platforms • Implement push notification systems using AWS SNS and Firebase Cloud Messaging integration • Develop notification features including notification history and in-app notification views using Flutter • Design and build core backend services: authentication, billing systems, notification services, and APIs • Collaborate with frontend lead to ensure smooth integration between mobile apps and backend infrastructure • Support cross-functional development team of 6 engineers on mobile initiatives

Lead Developer

YouFibreFreelance

juin 2024 - Présent

2 ans 5 mois

• Manage the development of a new platform for reseller partner • Integration of third party services for affiliate program • Integration of mobile network provider (Lifecycle + Three UK). Sales module, consumption management,... • Implementations of new features into the YouFibre CRM

JuicyLlamaFreelance

janv. 2024 - mai 2024

5 mois

Software developer - Opensource contributor

avr. 2024 - mai 2024

2 mois

Contribute to enhance JuicyLlama framework during free time

Senior software developer - Core Team

janv. 2024 - mai 2024

5 mois

Valence, Province de Valence, Espagne

I’m part of the Core team of Juicyllama. Improve JuicyLlama framework and develop new functionalities. Work on the development of platforms for the company using the framework.

Senior Software Developer

TestQualityFreelance

déc. 2022 - janv. 2024

1 an 2 mois

- Development and integration of Atlassian Cloud App with testquality platform using React Remix and Express - Moving company infrastructure to kubernetes (AWS EKS) using Pulumi IaC - Developing new frontend and backend features with React and Laravel

Lead Software Developer

GlashhFreelance

avr. 2022 - juil. 2023

1 an 4 mois

Develop Online PvP Betting Chess Game using technologies like NestJs, Angular, Websocket, MongoDb

GESPODO SRLFreelance

sept. 2020 - déc. 2022

2 ans 4 mois

Valence, Province de Valence, Espagne

Lead Developer

mars 2021 - déc. 2022

1 an 10 mois

Valence, Province de Valence, Espagne

- Analyse business IT requirements and translate business requirements into working models - Plan roadmap and tasks in an agile methodology for the development team - Implementation of a micro-services architecture from scratch with different language and framework such as NodeJs/NestJS, Python (Django/FastApi) in AWS - Create a SaaS like platform - Implementation of best practice development (TDD) and project pattern (Clean Architecture) - Lead a team of 4 developers - Coach and train the company developers in web and mobile technologies (Angular,Swift/SwiftUI,Android Java, NodeJs/NestJS,Django,...)

Full Stack Mobile developer

sept. 2020 - déc. 2022

2 ans 4 mois

My job as a mobile fullstack developer at Gespodo will be to implement and work on 3D scanning, computer vision and AI technologies within mobile applications as well as rethink and work on the server-side architecture. I also work on improving the user experience within the web app and mobile application.

Technical advisor

Clunnity

mai 2021 - janv. 2022

9 mois

Valence, Province de Valence, Espagne

- Support the business team to make the right choice about their platform architecture and infrastructure - Plan product development roadmap and agile process

Front-end Developer

Analyticalls

janv. 2020 - oct. 2020

10 mois

Valence, Province de Valence, Espagne

- Development of the interface of a web application allowing the configuration and visualization of conversational and textual analysis results (detection of words,feelings,...). - Development of an API to detect words during a chat conversation and integration of a module for Zendesk (customer service software). Tools,languages,frameworks,library: Front end : - VueJS,Quasar Framework,Vuex, i18n - Apache Echarts Back-end: - Python - Django, Django Rest Framework - Spacy (Tokenization, words propositions)

UI/UX & Front-end developer

SomData Analytics

avr. 2019 - oct. 2020

1 an 7 mois

Valence, Province de Valence, Espagne

- Find the best way to optimize the professional use of AI tools - Design and develop application interfaces. Tools,languages,frameworks and libraries : - Adobe xD - VueJS/Nuxt/Vuex/D3JS/Leaflet - Android Studio/ Java

Designer

EUnited We Code

juin 2019 - juil. 2019

2 mois

Bruxelles, Belgique

creation of the company's brand identity. Tool : Affinity Designer


Formation

thePower

Program ThePowerMBA with Digital Marketing Specialization, Business & Marketing expert - Business Administration

2021 - Présent

5 ans

BeCode Brussels

Mobile and Web developer

2018 - 2020

2 ans

Hispania

Certificat C1 cervantes, Langue et littérature espagnoles

2016 - 2018

2 ans

Institut des Arts de Diffusion

ingenierie du son

2015 - 2017

2 ans

institut fernand cocq ixelles

Baccalauréat, Études générales

2014 - 2016

2 ans


Licences et certifications

Product Masterclass: How to build Digital Products

Délivré le : oct. 2020

Certifié par Product School

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