Papa Djadji Gueye
Papa Djadji Gueye Fullstack Senior Developer
Open to new opportunities

Building Scalable Systems.

Senior Fullstack Developer with 8+ years crafting robust backend architectures, mobile applications and cloud infrastructures — across Fintech, SaaS & E-commerce. NestJS · Flutter · AWS · Microservices.

View my work → Let's talk
8+
Years of exp.
5+
Platforms shipped
5×
Key industries
∞
Lines of code
scroll
About

Who I Am
& What I Do

Role
Fullstack Senior Developer
Backend-first engineer who builds end-to-end digital products — from API architecture to mobile delivery.
Education
BTS — Software Engineering
Institut Supérieur Informatique · 2018 · Specialized in software design & systems architecture.
Languages
French · English
Native French speaker, professional working proficiency in English.
Location
Dakar, Senegal
Available for remote missions worldwide & on-site opportunities in West Africa.
Core expertise
Backend ArchitectureMicroservicesREST APIsFlutter MobileFirebaseAWS CloudCI/CDFintech & PaymentsAgile SCRUMTechnical Lead
Skills

Technical
Stack

⚙️
Backend & APIs
RESTful API design, clean architecture, high-availability microservices and secure authentication flows.
NestJSNode.jsExpressJSMicroservices
📱
Mobile Development
Cross-platform iOS/Android apps with Flutter, push notifications, OTP auth and Firebase analytics.
FlutterDartFirebaseFCM
🗄️
Databases
Query optimization, relational modeling, ORM patterns and NoSQL document stores.
PostgreSQLMongoDBPrismaMySQL
☁️
Cloud & DevOps
AWS deployments, Docker containerization, CI/CD pipelines, NGINX reverse proxy and monitoring.
AWS EC2/S3DockerGitHub ActionsPM2
💳
Fintech & Payments
Payment gateways, digital wallets, Stripe split transfers, financial flows and security compliance.
StripeWalletJWT/OAuth2Webhooks
🖥️
Frontend
Modern web interfaces, admin dashboards, SPAs and component-driven UI with React & Angular.
React.jsAngularTypeScriptTailwind
Career

Work
Experience

Datasysmobis — Dahlia
Oct 2024 → Present
Tech Lead · Fullstack / Mobile Developer

Social & event discovery mobile app — users find events, manage bookings, purchase tickets and interact through a gamified social feed.

  • Designed NestJS API with Clean Architecture + modular microservices (auth, events, payments)
  • Integrated Stripe — card payments, split & reverse transfers
  • Built Flutter iOS/Android app with OTP auth & Firebase Cloud Messaging
  • Automated event ingestion via Eventbrite & Fever scraping
  • AWS infrastructure + CI/CD GitHub Actions + Docker deployment
NestJSFlutterPostgreSQLStripeAWSDockerFirebase
Velocity Money
Jan 2024 → Sep 2024
Senior Backend Developer · Fintech / Microservices

Fintech startup specializing in international money transfers, digital payments and secure wallet management.

  • Built NestJS microservices architecture — Auth, Wallet, Transactions, Users services
  • Secured API with JWT hashing, validation and data compliance standards
  • Deployed on AWS EC2 + Docker + PM2/NGINX stack
  • Optimized transaction processing speed and reduced API latency
  • Platform scaled to support multi-country, multi-currency expansion
NestJSAWS EC2DockerPostgreSQLJWTNGINX
Apporio Infolabs
Feb 2022 → Jan 2024
Project Lead · Senior Backend & Fullstack Developer

International software company building turnkey digital solutions. Led 3 strategic platforms across fintech, ticketing and healthcare.

  • Delivered 3 production platforms: KALPE (fintech), GO_TIKETS (ticketing), Healthcare
  • Architected high-availability microservices — billing, wallet, notifications modules
  • Built web interfaces with Angular & React + Flutter/React Native mobile apps
  • Set up AWS CodeDeploy CI/CD pipelines, significantly improving deployment reliability
Node.jsAngularReactFlutterAWSDocker
TeamX-Group
Feb 2018 → Jan 2022
Fullstack Developer

Senegalese startup ecosystem — e-commerce, digital advertising and custom web/mobile products for SMEs and organizations.

  • Boutik221 — national e-commerce marketplace (web + mobile)
  • Firefly Media — digital advertising campaign platform
  • Technical advisor to founders + post-production support
NodeJSAngularReactFlutterNGINX
Jeulsima
Mar 2016 → Jun 2018
Fullstack / Mobile Developer

Vehicle booking platform — short-term rental, shuttles and airport transfers. Full-stack development from scratch.

PHP/LaravelIonic/AngularMySQL
Portfolio

Selected
Projects

01
Fintech · Events
Dahlia App
Social event discovery app with real-time booking, Stripe payments and a gamified social feed. Live on iOS & Android.
FlutterNestJSStripeAWS
02
Fintech · Wallet
City Money
International money transfer system with secure digital wallet, microservices architecture and banking-grade security.
MicroservicesJWTAWS EC2NestJS
03
Fintech · Interoperability
KALPE
Multi-bank interoperability fintech platform. Secure payment API with multi-currency transaction management.
NestJSFlutterPostgreSQL
04
Ticketing · Events
GO_TIKETS
Full digital ticketing solution — event creation, ticket sales, QR validation and real-time attendance analytics.
ReactNode.jsDocker
05
E-commerce · Local Market
Boutik221
National Senegalese e-commerce marketplace connecting local sellers and buyers with integrated local payment solutions.
AngularNode.jsMySQL
06
Healthcare · Digital
Health Platform
Patient & consultation management system with appointment booking, digital health records and automated notifications.
NestJSReactPostgreSQL
07
Marketplace · Local Services
Yitewo
Senegalese platform connecting residents with local shops, restaurants and service providers in their neighbourhood. National coverage — Dakar, Thiès, Saint-Louis, Ziguinchor and beyond.
Next.jsTypeScriptVercel
Contact
Let's build
something
great.

Available for freelance missions, full-time roles and technical partnerships. I reply within 24 hours.

Available for remote work
✉
Email
sunutexegroup@gmail.com
→
in
LinkedIn
My LinkedIn Profile
→
⌥
GitHub
My GitHub Profile
→