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 evolved from full-stack development to engineering autonomous systems. Currently, I lead Ijwi ry'Ikirundi AI, an open-source initiative building the first comprehensive AI dataset for the Kirundi language. Simultaneously, as an AI Developer & Software Engineer at Asyst, I bridge the gap between raw LLM logic and production-ready applications, designing scalable backend architectures and multi-agent workflows.
- 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
Organized by core competencies: from autonomous intelligence to enterprise-grade infrastructure.
AI & Intelligence
Systems & Backend
Ops & Leadership
Resume
My professional journey reflects a rapid evolution from Full Stack Development to AI Architecture. I combine deep technical expertise in Multi-Agent Systems with a commitment to solving real-world problems through open-source leadership.
Summary
Jules Cesar Junior Ndayisenga
AI Developer & Backend Engineer with years of experience. Founder of Ijwi ry'Ikirundi AI. Specializing in bridging the gap between raw LLM logic and scalable production applications using NestJS, Python, and Containerization.
- Bujumbura, Burundi
- +257 77 568 903
- Junior_julescesar10@hotmail.com
Education
Bachelor in Software Engineering
2021 - 2024
Lake Tanganyika University, Campus Kigobe, Bujumbura
Focusing on Software Architecture, Distributed Systems, and Advanced Database Management.
Diploma in Nursing
2017 - 2021
Ecole Paramedicale de Gitega, Gitega
Graduated with distinction "Grand Fruit". Gained critical thinking and crisis management skills through 20+ months of intensive clinical rotations in Emergency and Internal Medicine departments.
Specialized Training & Technical Deep-Dives
Agentic AI Engineering
2025
Self-Directed Technical Intensive
Architected complex Multi-Agent Systems and autonomous decision loops using CrewAI and OpenAI SDK.
- Built Dev Swarm: An autonomous coding agency with Dockerized execution.
- Engineered Autonomous SDR: A self-healing sales agent that manages email threads and state.
- Developed AI Ops Manager: An internal tool coordinating workflows inside Jupyter Notebooks.
AI Engineer Bootcamp 2025
2025
Advanced Curriculum: Deep Learning & NLP
Mastered high-level NLP (Tokenization, Transformers), Vector Search (Pinecone, RAG pipelines), and Speech Processing (Whisper integration).
Embedded Systems
2023
TME Education
Earned a certificate in Embedded Systems, bridging software logic with hardware constraints.
Leadership Training
2022
Africa Youth Leadership Forum
Earned a certificate focused on team management, strategic vision, and community building.
Professional Experience
Founder & Technical Lead
Nov 2025 - Present
Ijwi ry'Ikirundi AI | 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.
- Leading a community of open-source contributors to preserve the Kirundi language for the AI era.
AI Developer & Software Engineer
Feb 2025 - Present
Asyst Resources LTD | Bujumbura
- Working on AI initiatives, architecting intelligent solutions using
- Designing 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 Engineer (Full Stack)
2022 - 2024
Freelance / Various Clients
- Developed robust web applications including Secure Chat Systems and Productivity Tools.
- Election Management System: Architected a database solution for managing voter registers and election logbooks, improving data accuracy for local teams.
- Enterprise Invoicing: Created custom invoicing software ("Facturer") to streamline billing processes for local businesses.
- Developed and published browser extensions Chrome/Firefox Addon for productivity and task management.
Medical Staff (A2 Nurse)
2017 - 2021
Various Local Hospitals, Burundi
- Developed high-pressure decision-making skills in Emergency and Surgery departments.
- Managed patient care workflows, proving reliability and attention to detail in critical environments.
Projects
From Autonomous Agent Swarms to Enterprise Microservices, explore my latest engineering work.
- All
- AI Ops
- Engineering
- Mobile
🚀 FLAGSHIP
Services
Specialized engineering to bridge the gap between raw LLM logic and production-ready enterprise systems.
AI Ops & Agents
Architecting multi-agent swarms and autonomous decision loops using CrewAI and OpenAI SDK.
Core Engineering
Building production-grade RAG pipelines and scalable backends that ensure data integrity and low-latency retrieval for enterprise AI.
Mobile Solutions
Developing cross-platform productivity hubs and AI-integrated mobile experiences with Flutter.
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 CĂ©sar 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 CĂ©sar, he helps me in my career.