Build
Design and implement useful applications, APIs and integrations.
SOFTWARE ENGINEERING · DEVOPS & CLOUD
Building software.
Making it reliable.
I’m Chretien Rostini, a software engineering student who enjoys connecting application development with the systems that build, deploy and monitor it. I learn by building, troubleshooting and documenting what I discover.
Based inDouala, Cameroon
EducationSoftware Engineering · ENSPD
LanguagesFrench & English
DevOps & Cloud
Software Engineering
Learn · Build · Improve
01 / ABOUT ME
Curious by nature. Practical by approach.
My interests sit at the intersection of software engineering, DevOps, cloud infrastructure and cybersecurity fundamentals.
Through academic projects and internships, I have worked on backend APIs, frontend applications, third-party integrations, network access configuration and the delivery of containerized applications. More recently, I have been deepening my practice in infrastructure as code, CI/CD, AWS deployments and observability.
I’m especially interested in understanding why systems fail, tracing a problem across application and infrastructure layers, and turning that learning into clearer, more repeatable workflows.
Automate
Use containers, pipelines and infrastructure as code to make delivery repeatable.
Observe
Use metrics, logs and careful troubleshooting to understand system behaviour.
Keep learning
Document lessons and share technical concepts as I grow.
02 / EXPERIENCE
Where I’ve learned by doing.
Internships that introduced me to application development, network administration and cloud-native delivery.
JUL – AUG 2026
DevOps Intern
Cloud & deliveryFormuloo · Formuloo Compta
Worked on the DevOps workflow for a Django, Angular and PostgreSQL application: container images, GitLab CI pipelines, Terraform infrastructure, Amazon ECR and ECS Fargate deployment. Investigated deployment and routing issues, including frontend-to-backend API paths behind an Application Load Balancer. Also explored application monitoring using Prometheus, Grafana and Django metrics.
JUL – AUG 2025
Network Administration Intern
NetworkingGIS Sarl
Learned core IT and systems administration practices, with a focus on installing and configuring pfSense to support a captive portal and centralized network access management.
AUG – OCT 2023
Backend Development Intern
API integrationSymphoni Social
Contributed to backend work connecting the platform with third-party APIs, including integrations related to Twitter and WhatsApp.
03 / TECHNICAL TOOLKIT
Tools I’ve used and continue to develop.
A practical snapshot of my current toolkit. Some technologies come from project work; others are areas I’m actively practising in labs.
01
DevOps & Cloud
02
Backend & APIs
03
Frontend & UI
04
Data & Observability
05
Systems & Workflow
↗
How I work
I value clear documentation, small reproducible steps, version control, careful troubleshooting and continuous learning. My strengths include adaptability, attention to detail, curiosity and creativity. I distinguish hands-on project experience from technologies I’m still studying.
04 / SELECTED WORK
Projects, labs and ideas.
PROJECT 01Internship project
CI/CDAWSIaCOBS
Formuloo Compta — DevOps delivery
A professional internship project focused on containerizing and deploying a Django + Angular + PostgreSQL application. Work covered GitLab CI, Terraform, Amazon ECR, ECS Fargate, ALB routing and troubleshooting deployment failures. Monitoring experiments used Prometheus, Grafana and Django request metrics.
Professional project · Source code not public
PROJECT 02Hands-on lab
metrics → insight
Observability & infrastructure labs
A learning lab around monitoring application behaviour on an AWS EC2 host with Prometheus and Grafana, exposing Django request metrics and exploring PromQL. Related practice includes Ansible from WSL to a Docker-based managed host, plus Kubernetes and Helm fundamentals.
Learning lab · Ongoing practice
PROJECT 03Full-stack prototype
RISK / INSIGHT
Credit Scoring App
A default-risk prediction prototype for microfinance, organised around a FastAPI backend, React frontend and Streamlit interface. The repository includes application code, data/model-related folders and setup instructions.
PROJECT 04Desktop application
Library Manager
A JavaFX desktop CRUD application for managing library books, with basic operations to add, view, update and delete book records. The repository includes database schema and Java project files.
PROJECT 05Interactive web
AFRICA
Interactive Africa Maps
An interactive map experience where users can hover over African countries to reveal country-specific details. The public repository contains React-based and simpler map versions.
PROJECT 06Product concept
M●
Mobilo — Mobility marketplace
A Cameroon-focused marketplace concept designed to connect car-rental companies, individual vehicle owners, drivers and customers. Current work has focused on clarifying the ecosystem, user needs and project documentation; it is presented here as a product concept, not a launched service.
Early-stage concept
05 / EDUCATION
Building a strong foundation.
My academic path gives me a software engineering foundation while internships and personal projects help me connect theory to practice.
Software Engineering
École Nationale Supérieure Polytechnique de Douala (ENSPD)
In progress · Software development, engineering methods and computing.
A Level Science
Institut Polyvalent Bilingue TATIE, Douala
O Level Science
Institut Polyvalent Bilingue TATIE, Douala
06 / LEARNING IN PUBLIC
Notes from the learning journey.
I use LinkedIn to explain concepts I’m studying, record practical lessons and learn in public. These posts reflect ongoing development rather than a claim of mastery in every topic.
Why CI/CD matters
A practical introduction to continuous integration, delivery and deployment.
↗Pipeline as Code & YAML
How readable configuration enables versioned and repeatable delivery workflows.
↗Why an API Gateway helps
A note on routing, shared cross-cutting concerns and reducing coupling between clients and services.
↗Backend engineering patterns
Notes and examples on structured backend code and framework features.
↗07 / CONTACT
Have a project or an opportunity in mind?
I’m happy to connect about software engineering, DevOps, cloud infrastructure, internships and junior opportunities, or collaborative projects.
Email me