Denis-Andrei Marinică, stylised portrait

Denis-Andrei Marinică

Senior DevOps Engineer at LSEG, PhD candidate in AIOps & MLOps, teaching Artificial Intelligence & Machine Learning at ACS-UNSTPB

Bucharest, Romania, LinkedIn, contact

Experience

Sep 2025 - Present

Senior DevOps Engineer, London Stock Exchange Group, Bucharest, Romania

  • Design and maintain CI/CD pipelines in GitLab CI, Jenkins and GitHub Actions, with schema-validation gates (yamllint, kubeconform, JSON Schema) that catch misconfigurations before deployment.
  • Infrastructure as code with Terraform, Ansible and Helm; containerised workloads on Kubernetes (EKS, AKS, GKE).
  • Workflow automation with Apache Airflow, AWX/Ansible Automation Platform and n8n (alerting, ServiceNow ticketing, notifications).
  • Identity and access: OIDC SSO for internal platforms and Kubernetes, OIDC federation for CI/CD workload identity, LDAP/AD group-based RBAC across GitLab, Jenkins, Grafana and Vault.
Jun 2024 - Sep 2025

System Software Architect with Networking, Hitachi, Bucharest, Romania

  • Multi-cloud CI/CD (on-prem, Azure DevOps, GitHub Actions, GitLab CI) with gated releases, SAST/DAST (SonarQube, OWASP ZAP), image scanning and blue/green + canary deployments via FluxCD/ArgoCD and LaunchDarkly.
  • Secured AKS/EKS/GKE fleets: Calico CNI, network policies, OPA Gatekeeper, managed through Helm, Kustomize and Rancher; IaC in Terraform, Pulumi and ARM/Bicep.
  • Service mesh (Istio, Linkerd) for mTLS, traffic shaping and Jaeger tracing; centralised logging and metrics with ELK, Prometheus and Grafana.
  • Solution architecture: domain-driven microservices, CQRS/ES on Kafka/Event Grid, serverless, API gateways, and chair of the Architecture Review Board (scalability, GDPR, PCI-DSS).
Dec 2023 - Jun 2024

System Software Architect & Requirement Manager, Thales, Bucharest, Romania

  • Defined system architecture (hardware + software decomposition, component interactions, interfaces) using the ARCADIA framework in Eclipse Capella (model-based systems engineering).
  • Managed technical requirements flow-down from customer to sub-systems in IBM DOORS (DXL) and Siemens Polarion.
  • Developed and performed system verification methods to demonstrate compliance with customer needs, including product-safety certification activities.
  • Authored engineering plans, technical specifications, interface documents, test plans and technical reports; supported engineering reviews.
Jan 2023 - Dec 2023

System Architect for Autonomous Mobility (ADAS), Continental Automotive, Romania

  • Reviewed customer and stakeholder requirements, allocated them to system components and derived requirements for hardware, software and mechanical design teams.
  • Concept definition and system design; decomposed the system into components and disciplines and integrated the safety concept into the design.
  • Responsible for the system FMEA (with an FMEA moderator) and for tracking the resulting actions to completion.
  • Maintained the system bill of materials with input from hardware, mechanical and system technology; participated in discipline-architecture reviews and releases.
Apr 2022 - Jan 2023

Software Test Automation Engineer, Luxoft, Romania

  • Automated all tests assigned to project functions and built a GUI-driven Python automation suite covering every function and test in the project.
  • Used the cantools library on .dbc files to drive messages and signals in automated tests; simulated ECU communication in CANoe (CAPL).
  • Automated the flash procedure with an embedded Arduino/Python rig driving the Renesas and DediProg tools.
  • Designed reusable test infrastructure, tools and modules; wrote and maintained manual and automated test plans.
Jun 2021 - Sep 2021

Automation Engineer (Internship), ROBITAL Industrial Supplier, Pantelimon, Ilfov, Romania

  • Programmed Kawasaki industrial robots in K-ROSET and via Teach Pendant, and collaborative Universal Robots arms via Teach Pendant.
  • Designed, automated, installed and integrated industrial robots and robotic cells; supported factory acceptance tests and commissioning.
  • Maintained robots and robotic cells on site at customer plants; collected control-system specifications (PLC, SCADA, I/O, VFDs, network components).
  • Worked with industrial communication protocols (Profibus, Profinet, OPC UA/DA, UART, I²C, CAN) and IT/OT network segregation.

Research & teaching

Apr 2024 - Jul 2028

PhD Candidate, PhD Research: DevOps, MLOps and AIOps

Doctoral research on DevOps, MLOps and AIOps, VR game development for patients with medical conditions, and the development of an AI platform running on an AI training and inference server that I administer.

Jan 2026 - Present

Teaching Assistant, Intelligent Image Processing (MSc), Faculty of Automatic Control and Computers (ACS)

Jan 2026 - Present

Teaching Assistant, Software Engineering (BSc), Faculty of Automatic Control and Computers (ACS)

Apr 2026 - Present

AI Research Engineer, HRIA: Romanian Artificial Intelligence Hub

National AI research and development initiative. I cover the full lifecycle of AI systems: model research and training, algorithm optimisation, CI/CD for ML workloads, training/inference infrastructure and MLOps practices.

Apr 2024 - Present

Software Developer & DevOps Engineer, Sound of Vision (European Union (Horizon 2020))

Real-time detection and audio-haptic feedback for visually impaired users: detection models, spatial audio, a wireless haptic belt and a GPU edge cluster on NVIDIA Jetson.

Jun 2025 - Present

Software Developer with DevOps, TRAVEE: VR neuro-rehabilitation platform

Immersive VR, real-time biofeedback (EEG, FES, haptics) and AI analytics to accelerate neuromotor recovery after stroke, in clinics and at home.

Jun 2025 - Present

Full-Stack Developer & DevOps Engineer, GLOBE-CoP: Data Space Online Learning Platform

Cloud-native, Udemy-style learning marketplace for the GLOBE community of practice: courses, live webinars, forums and recommendations on Kubernetes (EKS/GKE).

Oct 2025 - Present

Full-Stack Developer & DevOps Engineer, GREENUS: Learning and certification platform for Greenus ambassadors

Digital learning, evaluation and certification platform for Greenus ambassadors: structured learning paths, assessments, digital badges and community features.

May 2023 - Nov 2025

Full-Stack Developer & DevOps Engineer, ROSPIN-SAT-1: ESA Fly Your Satellite! Design Booster (European Space Agency (ESA))

Software, infrastructure and quality strategy for a CubeSat on-board computer: layered RTOS firmware, embedded CI/CD, hardware-in-the-loop benches and telemetry anomaly detection.

Selected projects

Apr 2026 - Present

HRIA: Romanian Artificial Intelligence Hub, AI Research Engineer

From research prototype to production: training and evaluating ML/DL models, then building the CI/CD, infrastructure and MLOps workflows that run them reliably within Romania's national AI hub.

Jun 2025 - Present

GLOBE-CoP: Data Space Online Learning Platform, Full-Stack Developer & DevOps Engineer

A cloud-native, Udemy-style learning marketplace (instructors publish HD courses and live webinars, learners get recommendations, forums and progress dashboards) deployed on Kubernetes (EKS/GKE) with full CI/CD and observability.

Oct 2026 - Present

DeCiTeL: Democratic Citizenship Teaching & Learning platform, Full-Stack Developer & DevOps Engineer

The digital platform of the DeCiTeL Erasmus+ Teacher Academy for democratic citizenship education. A React and NestJS application with a resource repository, communities of practice and virtual exchanges, shipped through QA and production pipelines.

Oct 2025 - Present

GREENUS: Ambassador learning & certification platform, Full-Stack Developer & DevOps Engineer

A Udemy-style platform dedicated to training, evaluating and certifying Greenus ambassadors: on-demand courses, live webinars, structured certification paths, assessments, digital badges and a community layer.

Oct 2026 - Present

MoonBOT: energy-market signals and imbalance prediction, Full-Stack Developer & DevOps Engineer

A trading-signal and monitoring platform for the Romanian intraday and imbalance energy markets. Live market data, generation-mix outage detection, automated client reports and an ML pipeline that predicts the system imbalance for the next intervals.

Jun 2025 - Present

TRAVEE: VR neuro-rehabilitation platform, Software Developer with DevOps

Unity serious games fused with EEG, FES and haptic feedback, plus AI analytics, to accelerate post-stroke recovery in clinics and at home, with a full CI/CD and cloud backbone on AKS.

Oct 2026 - Present

SIMPATIC: participant file and e-signature platform, Full-Stack Developer & DevOps Engineer

A web platform where participants in the SIMPATIC training programmes check their data, sign their annexes electronically, upload an ID document and then download their continuing-education certificate, with an admin panel for the project team.

Apr 2024 - Present

Sound of Vision: audio-haptic navigation for the visually impaired, Software Developer & DevOps Engineer, PhD candidate

Real-time detection of obstacles, text, pedestrians and stairs rendered as spatial audio and wireless haptic feedback, running on a GPU-accelerated NVIDIA Jetson edge cluster orchestrated with Kubernetes and MLOps.

May 2023 - Nov 2025

ROSPIN-SAT-1: CubeSat on-board computer (ESA Fly Your Satellite!), Full-Stack Developer & DevOps Engineer

Software, infrastructure and quality strategy for a CubeSat OBC under ESA's Fly Your Satellite! Design Booster: layered RTOS firmware with CCSDS telemetry, an embedded CI/CD lattice, hardware-in-the-loop benches and telemetry anomaly detection.

Nov 2026

HRS4R@UPB: Human Resources Strategy for Researchers, Full-Stack Developer, DevOps & AI Cloud Administrator

The website of POLITEHNICA Bucharest's Human Resources Strategy for Researchers (HRS4R), presenting how the university supports and develops its academic and administrative staff.

Nov 2026 - Feb 2027

Performance Pay Platform for POLITEHNICA Bucharest, Full-Stack Developer, DevOps & AI Cloud Administrator

A web platform where POLITEHNICA Bucharest's teaching and research staff submit, and the university verifies and approves, applications for performance-based salary increases, fully online and with an audit trail.

Education

2024 - 2028 (expected)

PhD Candidate, Computer Science, Faculty of Automatic Control and Computers, National University of Science and Technology POLITEHNICA Bucharest

Research: DevOps, MLOps and AIOps; VR Game Development for Patients with Medical Conditions; AI Platform Development and AI Training & Inference Server Administration

2022 - 2024

MSc, Computer Science, Advanced Control and Real-Time Systems, POLITEHNICA Bucharest

2018 - 2022

BSc (Eng.), Robotics, Programming and Computer Science, Faculty of Industrial Engineering and Robotics, University POLITEHNICA of Bucharest

2014 - 2018

Baccalaureate, Mathematics and Computer Science, Colegiul Național "Ion Creangă", Bucharest

Skills

Python, Kubernetes, Docker, GitLab CI/CD, AWS, C++, Grafana, Prometheus, JavaScript, Ansible, Machine learning, Terraform, Computer vision, Helm, Linux, GitHub Actions, Microsoft Azure, Jenkins, OpenCV, C, ELK Stack, Argo CD, Cybersecurity, Networking

Certifications & learning

Scientific Computing with Python (freeCodeCamp), Data Analysis with Python (freeCodeCamp), Machine Learning with Python (freeCodeCamp), Computer Hardware Basics (Cisco Networking Academy (Credly)), IBM DevOps and Software Engineering Professional Certificate (IBM (Coursera)), ISTQB Certified Tester: Foundation Level (Luxoft / ISTQB), Introduction to Cybersecurity (Cisco (Credly)), Network Professional (CCNP) (Cisco (Credly)), Python Essentials 1 (Cisco Networking Academy / OpenEDG (Credly))

81 online courses (2,011 h), 18 completed, 22 course certificates.

Languages

Romanian (native), English (C1), French (A1)