DevOps engineer and incoming Ph.D. student in Computer Science at Université Laval.
~/about
I’m a DevOps engineer at Amelkis and an incoming Ph.D. student in Computer Science at Université Laval, where I start in January 2027 under the supervision of Prof. Mohamed Aymen Saied.
At Amelkis I migrated the company’s on-premise infrastructure to Microsoft Azure: about 150 resources defined as code in Terraform, plus the deployment pipelines, monitoring and security that keep them running. At the MISC Laboratory I run the lab’s own infrastructure too: Proxmox, OPNsense, LDAP single sign-on, Prometheus and Grafana.
My research is about keeping services up at the edge. At Laval I’ll work on availability management for IoT edge services on Kubernetes and KubeEdge: diagnosing faults and recovering across devices, workloads and nodes. Before that I worked on edge–cloud architectures and real-time violence detection, with one paper published and three under review.
I also teach: machine learning to 100+ students, and Master’s labs in distributed algorithms, operating systems and cloud computing.
~/work
Systems I've built or run, drawn the way I'd sketch them on a whiteboard.
Amelkis · 2026
I moved the company's on-premise platform to Microsoft Azure, rehosting and replatforming it into about 150 resources defined in Terraform. The apps run in Container Apps inside a private network, the databases are reachable only through Private Endpoints, secrets live in Key Vault, and the pipelines sign in with OIDC instead of stored credentials.
MISC Laboratory · ICSA 2025
An event-driven pipeline that watches live video and flags violence from two signals at once: body movement, from ResNet spatial-temporal features, and facial emotion. Apache Kafka decouples video ingestion, the two inference engines and the access-control logic, and Prometheus and Grafana watch the whole stack.
MISC Laboratory · 2025 – now
I run the lab's servers, network and identity. Proxmox VE hosts the virtual machines, provisioned with Terraform and cloud-init. OPNsense splits the network into VLANs and a DMZ and terminates a WireGuard VPN. OpenLDAP gives every service one login, an Nginx reverse proxy with automated TLS fronts Git with GPU CI runners and JupyterHub, and Prometheus, Alertmanager and Grafana watch all of it.
Open source · Go
A replicated, append-only log service in Go. Each node keeps records in segments, a store file plus an index of offsets. Raft replicates every write from the leader to its followers, Serf gossip lets nodes find each other and join the cluster, and clients speak gRPC, discovering the servers and the current leader through a custom resolver.
| Clients | Wi-Fi 6 | Wi-Fi 5 | Wi-Fi 4 |
|---|---|---|---|
| 2 | 139 Mbit/s | 119 Mbit/s | 91 Mbit/s |
| 4 | 154 Mbit/s | 128 Mbit/s | 99 Mbit/s |
| 8 | 137 Mbit/s | 117 Mbit/s | 90 Mbit/s |
| 16 | 139 Mbit/s | 116 Mbit/s | 85 Mbit/s |
| 32 | 137 Mbit/s | 113 Mbit/s | 90 Mbit/s |
| 64 | 131 Mbit/s | 117 Mbit/s | 83 Mbit/s |
| 128 | 133 Mbit/s | 116 Mbit/s | 90 Mbit/s |
Network simulation · ns-3
I simulated 802.11ax, 802.11ac and 802.11n in ns-3: one access point on a 5 GHz, 40 MHz channel, with 2 to 128 clients sending TCP traffic. Wi-Fi 6 delivered the most throughput at every client count.
Advanced IoT-based access control system using multi-agent systems, cryptographic identification, and facial recognition for research laboratories.
Machine learning price-prediction system for the Algerian laptop market.
~/research
Ph.D. project · Université Laval · starts Jan 2027
Keeping IoT services at the edge available on Kubernetes and KubeEdge: diagnosing faults and recovering across devices, workloads and nodes.
2025
Proceedings of the First International Conference on Smart Applications (ICSA 2025) · Springer · doi:10.1007/978-3-032-19929-4_10
@inproceedings{halladj2025violence,
title = {A Multimodal Approach for Real-time Violence Detection Based on Physical Actions and Facial Expressions},
author = {H. Halladj and A. Bouzenada and D. E. Saidouni and M. R. Bennamoun and A. Nouari},
booktitle = {Proceedings of the First International Conference on Smart Applications (ICSA 2025)},
publisher = {Springer},
year = {2025},
doi = {10.1007/978-3-032-19929-4_10}
}2026
Journal · submitted to Computer Networks (Elsevier)
2026
Conference · submitted to IAM 2026, 9th International Conference on Informatics and Applied Modelling (Guelma, Algeria)
2026
Conference · submitted to AICPS 2026 (ENS Oran, Algeria · IEEE)
ITRANS 2025 (Speaker) · University of Constantine 2
WebExpo 2025 El Djazair (Workshop Instructor) · Constantine, Algeria
SENV'24 (Presenter) · MISC Laboratory
GDG DevFest 2022 (Workshop Instructor) · Constantine, Algeria
~/experience
Apr 2026 – Present
Dec 2025 – Present
Research Project, MISC Laboratory
Jan 2025 – Present
Dec 2024 – Jul 2025
Research Project, MISC Laboratory
Sep 2024 – Present
Jun 2025 – Jul 2025
Nov 2023 – Jul 2024
2024 – Present
Université de Constantine 2
2024 – Present
Université de Constantine 2
Sep 2022 – Dec 2023
Google Developer Group (GDG) Constantine
~/education
2027 – 2030
Université Laval, Québec, Canada
Starts Jan 2027
Thesis Availability Management for IoT Edge Services on KubeEdge
Admitted for Winter 2027. Research on availability management for IoT edge services on Kubernetes and KubeEdge: fault diagnosis and recovery across devices, workloads and nodes.
2025 – 2026
Université de Constantine 2 — Abdelhamid Mehri
Thesis Development of Secure Integrated Systems for Smart Campus
April 2025 – June 2026; not completed. Research focus: distributed cloud architectures, IoT systems, real-time AI, fault-tolerant distributed infrastructures, and intelligent access control.
2022 – 2024
Université de Constantine 2 — Abdelhamid Mehri
Valedictorian — Ranked 1st university-wide
Thesis Smart Access Control through IoT in MISC Laboratory
Speaker at SENV'24 on smart access control via IoT; organized workshops (Create Your First Web Service Using Go) and major tech events (GDG DevFest 2022, Le Salon de l'Informatique 2023).
2019 – 2022
Université de Constantine 2 — Abdelhamid Mehri
Thesis Laptop Price Prediction Using Machine Learning for the Algerian Market
Organized GDG DevFest 2021; active member of computer science student organizations.
~/skills
~/contact
Email is the best way to reach me, whether it's about DevOps work, research or teaching.