Marius Costache · Engineering Manager

Building resilient systems
and the teams behind them.

Engineering Manager with 15+ years in software engineering and 3 in technical leadership — currently leading an 8-engineer team building Onapsis Defend, a real-time cybersecurity product protecting enterprise SAP environments and processing billions of security events per day.

15+
Years in software engineering
3
Years in technical leadership
8
Engineers currently leading
300+
Interviews conducted

About me

Where I am, and how I got here.

I’m an Engineering Manager combining people leadership, technical leadership, and distributed-systems experience. My scope spans engineering strategy and roadmap execution, architecture and technical decision-making, hiring and team development, reliability, and complex enterprise customer escalations. I remain technically close to the systems my teams build — particularly around distributed systems, event-driven architectures, scalability, observability, and Kubernetes.

Now — Onapsis Defend

I lead an 8-engineer team building Onapsis Defend, a real-time cybersecurity product protecting enterprise SAP environments and processing billions of security events per day.

Before — E.ON & large-scale platforms

Before engineering management, I worked as a senior backend engineer on large-scale IoT, e-commerce, monitoring, and enterprise platforms. At E.ON, I worked on a 60+ microservice IoT platform processing data from approximately 10 million sensors and smart meters.

Technical

  • Python
  • Go
  • Java
  • PostgreSQL
  • Redis
  • RabbitMQ
  • Kafka
  • Kubernetes
  • AWS
  • Azure
  • GraphQL
  • gRPC
  • OpenTelemetry
  • Prometheus
  • Grafana

Leadership

  • Engineering management
  • Technical strategy
  • Roadmap execution
  • Hiring
  • Performance management
  • Mentoring
  • Incident response
  • Customer escalations
  • Cross-team delivery

“I care particularly about building engineering organizations where strong technical standards and sustainable execution reinforce each other.”

— with 300+ technical and behavioral interviews conducted along the way

Contact

Let’s connect.

For opportunities, collaborations, or a conversation about engineering leadership.