IT Architect
PhD Candidate

Profile

My experience spans software architecture, distributed systems, AI and development, with an execution-oriented approach from design through to implementation.

In parallel, I am developing advanced expertise in governance, visibility and control within technological systems, particularly in decentralized environments.

Current Positions

IT Architecture Advisor, Université Laval (2025)

Software Architect, CRCHUM (2023)

Career

IT Blockchain Architect, Revenu Québec (2022–2023)

Tech Lead, Nsandax SARL (2018–2021)

Education

PhD in Engineering, ÉTS (in progress)

Master's in IT Engineering, ÉTS (2023)

Bachelor's in Mathematics and Computer Science, University of Kinshasa (2019)

Research Affiliations

Research Chair in Smart Contracts – CNQ / Université Laval

FuséeLab T-RIZE Laboratory – ÉTS

Chair in Software Product and Project Management – ÉTS

Publications

S.I. Sion et al. (2026). Enforcing Global Usage Constraints in Distributed Systems: A Formal Model of Directed Traceability. IEEE Access. DOI: 10.1109/ACCESS.2026.3700864

S.I. Sion, K. Zhang, A. April (2026). BRA-PS: A Blockchain Reference Architecture for Public Sector Citizen-Centric Applications. Preprints. DOI: 10.20944/preprints202605.0472.v1

S.I. Sion, T. Nguyen-Phan, M. Fortin, A.M. Mes-Masson, K. Zhang (2025). Transforming Biospecimen Management: A Roadmap for Integrated Sample Traceability in the Era of Global Research. Biopreservation and Biobanking. DOI: 10.1177/19475535251366364

S.I. Sion, T. Nguyen-Phan, M. Fortin, A.M. Mes-Masson, K. Zhang (2025). Blockchain-Based Universal Identifiers for Biobank Sample Tracking in Canada. ISBER 2025 Annual Meeting.

S.I. Sion, K. Zhang (2024). A proof of concept deployed on a distributed ledger for public service: vehicle taxation and registration by SAAQ–Revenu Québec (certificate VDE-23), pp. 33–67. Éditions Yvon Blais.

Sion, S.I., Zhang, K., April, A., Lutete, T.M., Bouchard, C. (2024). A Comprehensive Review of Multi-chain Architecture for Blockchain Integration in Organizations. BPM 2024. Springer, LNBIP vol 527. DOI: 10.1007/978-3-031-70445-1_1

S.I. Sion, K. Zhang, A. April (2023). Towards Citizen-Centric Services using Blockchain-Powered Digitalization of Public Sector Processes. BCCA 2023, pp. 361–368. DOI: 10.1109/BCCA58897.2023.10338883

Z. Batool, S.I. Sion, R.T. Naha, K. Zhang (2023). B-ROSCA: A Smart Contract-Based Selection of ROSCA Communities Using Collateral. IEEE DAPPS 2023, pp. 7–12. DOI: 10.1109/DAPPS57946.2023.00011

S.I. Sion (2023). Decentralized Service Composition Applications (dXapps): Towards a New Paradigm for Building Blockchain Applications. ACM Middleware '23: Demos, Posters and Doctoral Symposium. DOI: 10.1145/3626564.3629094