Hi, I’m Milen Simeonov. I’m an IT professional with over 25 years of experience delivering reliable and scalable systems across on‑premises and cloud environments. I specialize in DevOps, cloud (AWS), virtualization, automation, and security, and I enjoy helping development teams ship value quickly while maintaining robust operational practices. I’m passionate about mentoring teams, building repeatable processes, and continuously improving infrastructure and security. I thrive in fast‑paced environments that value collaboration, learning, and delivering high‑quality solutions.

Milen Simeonov

Hi, I’m Milen Simeonov. I’m an IT professional with over 25 years of experience delivering reliable and scalable systems across on‑premises and cloud environments. I specialize in DevOps, cloud (AWS), virtualization, automation, and security, and I enjoy helping development teams ship value quickly while maintaining robust operational practices. I’m passionate about mentoring teams, building repeatable processes, and continuously improving infrastructure and security. I thrive in fast‑paced environments that value collaboration, learning, and delivering high‑quality solutions.

Available to hire

Hi, I’m Milen Simeonov. I’m an IT professional with over 25 years of experience delivering reliable and scalable systems across on‑premises and cloud environments. I specialize in DevOps, cloud (AWS), virtualization, automation, and security, and I enjoy helping development teams ship value quickly while maintaining robust operational practices.

I’m passionate about mentoring teams, building repeatable processes, and continuously improving infrastructure and security. I thrive in fast‑paced environments that value collaboration, learning, and delivering high‑quality solutions.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
See more

Language

English
Fluent

Work Experience

DevOps Engineer at Bigger Picture
May 1, 2022 - October 31, 2024
Managing and supporting the company cloud infrastructure: AWS EKS, AWS RDS, AWS S3, CloudFront, Elasticache, VPC, ALB/NLB, VPN, CloudWatch, Lambda, Kubernetes, Docker, Ansible, Terraform, Bitbucket, Jira, Confluence, and CI/CD pipelines.
IT Team Leader at Kukui Corporation
March 1, 2023 - March 1, 2023
Planning, setting up, managing and maintaining the entire IT infrastructure (datacenters, offices, cloud services), security, networking, virtualization, load balancing, storage, backup and replication, HA clusters; leading Production and Development environments; assisting development teams and automating processes.
Senior System Administrator; Telecommunication support engineer at Netera PLC / US corporation / Grand hotel Yantra
March 1, 2015 - March 1, 2015
Planing, setting up, managing and maintaining IT infrastructure; automation via PowerShell and Bash; security penetration tests; user support; IT training.
System Engineer at CNsys PLC (HP Preferred Partner)
August 1, 2008 - August 1, 2008
Hardware and software support/service of HP servers, notebooks, workstations, printers; Windows servers and AD; network solutions with Cisco; customer consulting.
System Administrator at DSK Bank PLC
February 1, 2005 - February 1, 2005
Maintaining software/hardware operation; admin Windows Server 2000 branch server; Windows 2000 Professional clients; training and education.
System Administrator at Original JSC
August 1, 2003 - August 1, 2003
Administering Windows NT/ Linux servers; network client support; general IT operations.
Service engineer / Computer teacher at THE VEDA GROUP LTD
January 1, 2003 - January 1, 2003
Service engineer, computer teacher (Windows 2000 Pro, MS Office), office manager.
System administrator and computer teacher at Infocenter – Kalinka Toteva
January 1, 2002 - January 1, 2002
System admin and computer teacher (Windows 2000 Pro, MS Office, Internet Explorer).
System administrator and computer teacher at AKTA-Net LTD
August 1, 2001 - August 1, 2001
System administrator and computer teacher (Windows 2000 Pro, MS Office, Internet Explorer).
Computer teacher at Free occupation
January 1, 2001 - January 1, 2001
Computer teacher (Windows 98, MS Office and Internet Explorer); office techniques service and consultation.
Computer Science Teacher at Media GROUP LTD
February 1, 2000 - February 1, 2000
Computer teacher (Windows 98, MS Office and Internet Explorer).
Senior DevOps Engineer at CommIT Offsore
October 25, 2024 - Present
Creating, managing and supporting customers AWS cloud infrastructure: AWS EKS, AWS RDS, AWS S3, CloudFront, Elasticache, VPC, ALB/NLB, VPN, CloudWatch, Lambda, Kubernetes, Docker, Ansible, Terraform, Bitbucket, Jira, Confluence, and CI/CD pipelines.
IT Team Leader at Kukui Corporation
October 1, 2013 - March 1, 2023
Led the IT team and managed the entire IT infrastructure across datacenters, offices, and cloud (AWS S3/EC2/ELB, Cloudflare); virtualization (Hyper‑V, ESXi); storage, backups, replication, and HA clusters; production and development environments (Docker Swarm, Kubernetes, Sandbox); automation, security testing, and employee training.
Senior System Administrator; Telecommunication support engineer at Neterra PLC / US corporation / Grand hotel “Yantra”
August 1, 2008 - March 1, 2015
Planned, set up, and maintained IT infrastructure including servers, routers, firewalls, switches, VPN, storages, and backups; automation with PowerShell and Bash; regular security penetration tests; user support and security improvements; training for employees.
System Engineer at CNsys PLC (HP Preferred Partner)
September 1, 2005 - August 1, 2008
Hardware and software support and service of HP servers, notebooks, workstations, desktops, laser/inkjet printers; Windows Server and client OS administration; Active Directory and network infrastructure; Cisco-based solutions.
System Administrator at DSK Bank PLC
September 1, 2003 - February 1, 2005
Maintained local branch server and Windows 2000/ Professional client computers; supported banking software; installed and educated users on financial applications.
System Administrator at Original JSC – Sevlievo
April 1, 2003 - August 1, 2003
Administered and supported Windows NT Server, Red Hat Linux server and network clients; contributed to IT operations and user support.
Service engineer, computer teacher at THE VEDA GROUP LTD.
January 1, 2002 - January 1, 2003
Serviced computer hardware and provided basic computer education; managed office administration.
System administrator and computer teacher at Infocenter – Kalinka Toteva
October 1, 2001 - January 1, 2002
System administration and teaching Windows 2000/XP, MS Office, and Internet usage.
Computer teacher at Free occupation
March 1, 2000 - January 1, 2001
Computer teacher, office techniques service and consultation.
Computer Science Teacher at Media GROUP LTD
November 1, 1999 - February 1, 2000
Taught Windows 98, MS Office and Internet Explorer; IT education.

Education

Master's degree at Technical University "Vasil Aprilov" of Gabrovo
January 1, 1992 - January 1, 1997
Master's degree, Electronic and IT engineer at Technical University 'Vasil Aprilov' of Gabrovo, Bulgaria
January 1, 1992 - January 1, 1997

Qualifications

A+ Core Hardware
January 11, 2030 - November 7, 2025
A+ OS Technologies
January 11, 2030 - November 7, 2025
Server+ Certified Professional
January 11, 2030 - November 7, 2025
ASP - HP Commercial Desktops, Workstations, and Notebooks
January 11, 2030 - November 7, 2025
ASP - HP ProLiant Server Maintenance
January 11, 2030 - November 7, 2025
HP LaserJet Fundamentals
January 11, 2030 - November 7, 2025
Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory Configuration
January 11, 2030 - November 7, 2025
Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure Configuration
January 11, 2030 - November 7, 2025
Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure Configuration
January 11, 2030 - November 7, 2025
Microsoft Certified System Engineer
January 11, 2030 - November 7, 2025
Microsoft Certified System Administrator
January 11, 2030 - November 7, 2025
Certified Scrum Master
January 11, 2030 - November 7, 2025
A+ Core Hardware A+ OS Technologies
January 11, 2030 - February 16, 2026
ASP - HP Commercial Desktops, Workstations, and Notebooks
January 11, 2030 - February 16, 2026
HP ProLiant Server Maintenance
January 11, 2030 - February 16, 2026
HP LaserJet Fundamentals
January 11, 2030 - February 16, 2026
HP Monochrome LaserJet 1XXX
January 11, 2030 - February 16, 2026
HP Monochrome LaserJet 2/4/5XXX
January 11, 2030 - February 16, 2026
HP Monochrome LaserJet 3XXX
January 11, 2030 - February 16, 2026
MCSA
January 11, 2030 - February 16, 2026
MCSE
January 11, 2030 - February 16, 2026
Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory Configuration
January 11, 2030 - February 16, 2026
Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure Configuration
January 11, 2030 - February 16, 2026
Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure Configuration
January 11, 2030 - February 16, 2026
Microsoft Certified System Engineer
January 11, 2030 - February 16, 2026
Microsoft Certified System Administrator
January 11, 2030 - February 16, 2026
Certified Scrum Master
January 11, 2030 - February 16, 2026
Cybersecurity Awareness: Social Engineering
January 11, 2030 - February 16, 2026
Cybersecurity at Work
January 11, 2030 - February 16, 2026

Industry Experience

Software & Internet, Telecommunications, Professional Services