À propos de Constantin Mihai
Architect of secure, governed, and scalable enterprise platforms — with deep specialization in IAM solutions, multi-cloud strategy and cloud-native modernization. Trusted by the European Commission to lead platform-level decisions across identity, security and distributed systems. Track record of transforming legacy estates into future-proof architectures: 97% latency reduction, 99.5% availability across 30+ migrated systems, and department-wide AI adoption frameworks built from the ground up.
Anglais
Bilingue ou natif
Néerlandais
Capacité professionnelle limitée
Français
Capacité professionnelle complète
Roumain
Bilingue ou natif
Accepte de travailler sur site
Brussels (jusqu’à 50 km)
Expériences
- European CommissionCloud Architectnovembre 2022 - février 2026 (3 ans et 3 mois)•Main achievement: Eradicated fragmented and high-maintenance user-role mechanisms by architecting a new cloud-agnostic IAM microservice. By migrating legacy policies to a role-and-task tertiary application using both SOAP and REST APIs, I achieved a clean separation of responsibilities for user provisioning, effectively future-proofing the system for multi-cloud evolution and reducing architectural technical debt.•Eliminated architectural fragmentation by designing a reusable domain service layer across 7 bounded contexts - decoupling business logic from data access through repository patterns and aggregate roots, significantly improving maintainability and enabling independent scalability per domain.•Transformed internal development efficiency by automating 90% of repetitive operational workflow; by orchestrating standardized scheduled scripts, I successfully streamlined engineering teams workflows thus harboring focus for higher-value features.•Established a quality first culture by integration of mandatory pull request analysis, reducing bug introduction by 80% and minimizing manual reviews.•Orchestrated a 30-day pilot program to evaluate AI-assisted development tools, bridging the gap between emerging tech and practical engineering. By designing standardized prompt engineering frameworks and reporting on technical trade-offs, I accelerated department-wide AI adoption and established the foundational best practices for secure, high-speed AI integration.
- European CommissionApplication Architectjanvier 2019 - octobre 2022 (3 ans et 9 mois)• Main achievement: Reduced ongoing maintenance effort by 50% through targeted application modernization and root-cause analysis and problem management.• Successfully migrated legacy applications built on ColdFusion to Node.js resulting in an increase of 15% of application performance.• Boosted system performance by optimizing a core functionality with over 20 econometric dimensions, reducing average latency from 900ms to 20ms and allowing a 4x increase in user load.• Rearchitected data layer by transitioning from a horizontal model to a vertical one, which resulted in minimization of storage used by 30%.• Architected and implemented historical data and visualization capabilities which led to improved decision making by stakeholders.
- METRO SYSTEMSSenior Oracle Developerjanvier 2016 - décembre 2018 (2 ans et 11 mois)• Main achievement: Led enterprise-scale cloud transformation across 30+ legacy retail systems - reducing infrastructure spend by 20% while increasing application availability from 90% to 99.5%, establishing a resilient foundation for ongoing digital modernization.• Identified and permanently resolved critical bottlenecks across retail procurement and merchandising workflows — eliminating an average of 20 weekly support requests and restoring operational continuity across store-facing systems.• Stabilized Oracle production environments for 2,000+ retail and supply chain users by implementing a high-performance database governance framework. By executing real-time SQL tuning, resolving systemic locking issues and delivering standardized runbooks for support teams, I reduced P1 incidents by 70%, improved response times by 75%, and slashed MTTR from 90 to 30 minutes.
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Formations
- Master's degreeAcademy of Economic Studies of Bucharest, Faculty of Economic Cybernetics, Statistics and Informatics2014Master's degree
- Bachelor of EngineeringPOLITEHNICA University of Bucharest2011Bachelor of Engineering