Jules Cesar Junior Ndayisenga

I'm

About

I am passionate about creating innovative solutions that enhance user experiences and meet specific client needs. My journey has allowed me to develop a versatile approach, combining creativity with advanced programming techniques.

Software Engineer | AI Data Architect | Founder

With years of experience, I have had the opportunity to work on various projects ranging from UI design to complete web application development and web Apps. Currently leading Ijwi ry'Ikirundi AI, an open-source initiative to build the first comprehensive AI dataset for the Kirundi language, managing a community of contributors and architecting serverless data pipelines. As Lead AI Engineer at Asyst, I architect intelligent AI solutions, develop advanced chatbots and LLM-powered assistants, and build scalable backend infrastructure for enterprise applications.

  • Birthday: 24 April 2002
  • Website: My Website
  • Phone: +257 77568903
  • City: Bujumbura, BURUNDI
  • Age:
  • Degree: Bachelor
  • Email: Junior_julescesar10@hotmail.com
  • Freelance: Available

I firmly believe that every project is an opportunity to learn and grow. As a freelancer, I am always seeking new challenges that allow me to explore emerging technologies and refine my skills.

Facts

In a rapidly evolving digital landscape,having the right skills and knowledge is crucial. Here are some key facts that highlight my journey and expertise

Happy Clients

Projects

Hours Of Support

Awards

Skills

In today's fast-paced digital world, versatility and expertise are key. Here are some of the skills I have acquired over the years, reflecting my commitment to professional growth and excellence and committed to continuous learning and keeping up with industry trends.

Frontend & UI 65%
Backend Architecture 80%
Data Engineering 60%
AI Ops & Open Source 70%

Resume

My professional journey reflects a blend of creativity, technical skills, and a commitment to delivering high-quality results in Web Development and Software Development.

Sumary

Jules Cesar Junior Ndayisenga

Creative Developer with years of experience delivering impactful marketing materials. Proven expertise in collaborating with teams to bring concepts to life

  • Bujumbura, Burundi
  • +25777568903
  • Junior_julescesar10@hotmail.com

Education

Bachelor in Software Engineering

2021 - 2024

Lake Tanganyika University, Campus Kigobe, Bujumbura

Focusing on full-stack development, with projects in web applications and database management.

Nursing Diploma

2017 - 2021

Ecole Paramedicale de Gitega, Gitega

Graduated with a mention of "Grand Fruit" and Gained hands-on experience through over 20 months of internships at local hospitals, CDS working in various departments including Internal Medicine, Pediatrics, Surgery + Urgences, and Maternity providing compassionate care to diverse patient population.

Formations & Certifications

Web Development

5 months

Carama, Bujumbura, Burundi

Completed The Complete 2024 Web Development Bootcamp where I learned
and more.

Python

4 months

Carama, Bujumbura, Burundi

Completed 100 Days of Code: The Complete Python Pro Bootcamp where I learned and more.

Embedded System

3 months

Kigobe, Bujumbura, Burundi

Earned a certificate in Embeded System from TME Education.

Duolingo ET

2022

Ngagara, Bujumbura, Burundi

Earned a certificate in Duolingo English Test.

Leadership Training

1 month

Africa Youth Leadership Forum

Earned a certificate in Leadership training.

Book Review Competition

Global Changemakers

Earned a certificate for participating in a book review competition, demonstrating a commitment to learning and fostering a culture of reading and critical thinking.

Professional Experience

Founder & Technical Lead

Nov 2025 -

Ijwi ry'Ikirundi AI | Bujumbura, Burundi (Remote)

  • Architected a full-stack data pipeline for low-resource language acquisition using Python, Hugging Face, and Git LFS
  • Designed a zero-cost serverless contribution platform using GitHub Pages and Google Apps Script (GAS) as a backend API
  • Managing a dataset of 40,000+ sentences and audio clips, implementing automated cleaning scripts (Pandas/RegEx) and CI/CD workflows for data validation
  • Leading a community of contributors to preserve the Kirundi language for the AI era

Lead AI Engineer at Asyst

Feb 2025 -

Rohero, Bujumbura, Burundi

  • Leading AI and backend development initiatives, architecting intelligent solutions using NestJS and OpenAI APIs
  • Designing and implementing REST APIs and microservices for scalable backend infrastructure
  • Building advanced chatbots and AI assistants that integrate LLMs with backend systems for real-time conversational experiences
  • Developing AI-powered tools including interview simulators and intelligent automation systems

Software Developer Engineer

2022 -

Rohero, Bujumbura, Burundi

A2 Nurse

2017 - 2021

Various Local Hospitals all over the country, Burundi

  • Gained hands-on experience through over 20 months of internships at local hospitals

CV

Check my CV

CV

my CV

Projects

Explore our diverse range of projects that showcase our skills and creativity. Each project reflects our commitment to quality and innovation.

  • All
  • App
  • Mobile
  • Web
  • AI
Kirundi AI Ecosystem 🚀 FLAGSHIP

Ijwi ry'Ikirundi AI Ecosystem

AI / Data Engineering

AI Interview Simulator

AI Interview Simulator

Chatbot / HR Tech

App 1

Add-on

Kirundi AI Ecosystem

Kirundi AI Ecosystem

AI / Data Engineering

App 2

SimonGame

Burundian Language Identifier

AI Project

Burundian Language Identifier

Web 2

Web

App 3

Number To Letter

Mobile 2

Mobile

Mobile 1

Mobile

Web 3

Website

Services

I / We offer a range of services designed to meet your needs. Our team is dedicated to providing high-quality solutions that ensure satisfaction and effectiveness

WebSites

Creating responsive and user-friendly websites tailored to your business needs

Mobile Apps

Developing innovative mobile applications for iOS and Android platforms

Software Applications

Building robust software applications that streamline your operations

AI Apps

Developing intelligent applications using cutting-edge AI and machine learning.

Testimonials

Arsene IRUMVA

Software Engineer

Working with Stark on our IT projects is a real pleasure. His advanced technical skills and ability to find innovative solutions are invaluable assets for our team.

Brunel Neree

Graphic Designer

Working with StarK was a pleasure, we walked together since 3years and he is a good and hardworking person a genius one

Aldo Alex NGANJI

Web Developer

I express my appreciation for my friend, who is an excellent teammate. During our IT projects, he consistently demonstrates unwavering motivation. Even when faced with complex bugs, he never gets discouraged and perseveres until the problems are fully resolved. Additionally, his organizational skills are outstanding. Working with him is always a rewarding experience!

Lioba

Software Engineer

I recently had the pleasure of working with StarK. I was incredibly impressed by their development skills. StarK has a knack for finding innovative solutions and working seamlessly within a team. Their contributions were instrumental in the success of our projects

Fernet

Mobile Developer

En travaillant avec stark, Il accorde une grande importance au projet que vous travaillez ensemble. Il a un esprit d'équipe, il persiste dans son travail et il est déterminé.Il a une grande cohésion d'équipe.

Bazagod

Web Developer

By working with Jules César Junior I learned to persevere and learn a lot of things in programming for example in frontend in backend I had a lot of advice through César, he helps me in my career.

Contact

Location:

Carama, Bujumbura, Burundi

Call:

+25777568903