Shtiliyan Dzhinovski
Lead DevOps Engineer
Sofia
Summary
Adept at driving DevOps culture and enhancing team performance at Patient 21 Bulgaria EOOD, excel in cloud computing, Kubernetes, and fostering professional growth. Achievements include significant infrastructure automation, security enhancements, and a pivotal role in migrating services to cloud-native solutions, demonstrating both technical expertise and leadership.
Overview
18
18
years of professional experience
6
6
years of post-secondary education
2
2
Languages
Work History
Lead DevOps Engineer
Patient 21 Bulgaria EOOD
02.2023 - Current
- Championing DevOps culture within organisation that emphasised collaboration between development, operations, and QA teams for seamless software delivery.
- Mentoring junior team members, fostering professional growth and improving overall team performance.
- Evaluating emerging technologies in DevOps space and recommended strategic adoption of solutions that aligned with organisational goals and requirements.
- Migrated various services to Kubernetes-native continues delivery tools, like Argo CD, Kustomize and Helm.
- Collaborated on custom solutions and integrations with various teams, e.g. BI team ETL pipeline using Python to deliver business-critical data to our data warehouse, QA team E2E tests with Browserstack, and integrations of Cypress with our security tools, utilising identity-aware proxy to provide secure role based access for technical and non-technical employees alike, etc.
- Currently working on improving security by provisioning and utilising automated private TLS CAs, and collaborating on major version upgrade of messaging broker and underlying topology.
- Currently championing effort to create more self-service options for developers allowing them to spin up resources on-demand without waiting for manual intervention from operations team.
Senior DevOps Engineer
Patient 21 Bulgaria EOOD
06.2021 - 02.2023
- Migrated multiple customer-facing (mainly Kotlin/Spring Boot microservices) and supporting services to cloud managed Kubernetes (EKS) clusters, lowering cost, and improving scalability and performance.
- Migrated single instance message broker system (RabbitMQ) to cluster solution, and implemented message topology provisioning over API, improving availability.
- Implemented dynamic database credentials provisioning for applications and humans, role based access to private servers using Hashicorp Vault and jump hosts, improving security posture.
- Improved and expanded infrastructure as code usage and "coverage": imported existing resources, discovered and codified usage patterns, and removed unintended discrepancies, allowing easier troubleshooting of, and minimising time to production of new services.
- Optimised and expanded common CI/CD templates in cross-functional collaboration with BE and FE engineers, and helped implement similar practices for QA, Mobile, and others.
- Migrated internal monitoring and logging solutions to Kubernetes-native tools (Grafana, Prometheus, Loki), ensuring new services are monitored and logs are scraped by default, ensuring observability data availability from day 0.
- Optimised cloud resource usage by analysing cost metrics and making recommendations for more efficient configurations.
DevOps Engineer
Cleversoft Bulgaria OOD
02.2016 - 12.2020
- Collaborated with cross-functional teams to increase service performance, improving customer satisfaction and lowering hardware requirements.
- Managed company wide project to implement issue tracking software (Jira) for internal and customer facing use. Systematized ad hoc processes to non-constricting workflows and enabled easier coordination between teams.
- Participated and lead some projects to migrate customer facing and internal services to public cloud infrastructure (GCP, Azure).
- Collaborated with Dev teams in project to migrate from Subversion to Git, for multiple repositories, one with 1M+ lines of code and 8+ years of revision history.
- Migrated on-prem manually provisioned Jenkins to GKE deployment, allowing faster and concurrent builds, on demand agents, and dev defined build environments, while keeping backwards compatibility.
Systems Engineer
Cleversoft Bulgaria OOD
07.2015 - 02.2016
- Improved employee workstation provisioning automation and office firewall security.
- Implemented Monitoring automation and optimized alert grouping.
- Improved vSphere configuration management, slashing provisioning time for new servers from days to hours.
- Participated in platforms stability improvements to allow 99.95+ uptime (99.99+ for new services).
- Initiated and lead change process improvements leading to more streamlined workflow, while following sector regulations.
Disponent
Yazaki Bulgari EOOD
10.2011 - 05.2015
Maintenance Technician
Yazaki Bulgaria EOOD
08.2009 - 10.2011
Shop Assistant
Kontrast - 94 EOOD
04.2007 - 02.2008
Sales Assistant
Kontrast - 94 EOOD
06.2006 - 03.2007
Education
Interrupted - Naval Communications And Radio-technical Systems
Naval Academy "Nikola Vaptsarov"
Varna, Bulgaria 07.2004 - 11.2005
High School Diploma -
Mathematical High School "Atanas Radev"
Yambol 09.1999 - 05.2004
Skills
Cloud computing
Infrastructure automation
Containerisation and virtualisation technologies
Kubernetes
Distributed systems
Monitoring and logging
Security best practices
Continuous integration and deployment
Programming and scripting languages: Python, Bash, Go
Timeline
Lead DevOps Engineer
Patient 21 Bulgaria EOOD
02.2023 - Current
Senior DevOps Engineer
Patient 21 Bulgaria EOOD
06.2021 - 02.2023
DevOps Engineer
Cleversoft Bulgaria OOD
02.2016 - 12.2020
Systems Engineer
Cleversoft Bulgaria OOD
07.2015 - 02.2016
Disponent
Yazaki Bulgari EOOD
10.2011 - 05.2015
Maintenance Technician
Yazaki Bulgaria EOOD
08.2009 - 10.2011
Shop Assistant
Kontrast - 94 EOOD
04.2007 - 02.2008
Sales Assistant
Kontrast - 94 EOOD
06.2006 - 03.2007
Interrupted - Naval Communications And Radio-technical Systems
Naval Academy "Nikola Vaptsarov"
07.2004 - 11.2005
High School Diploma -
Mathematical High School "Atanas Radev"
09.1999 - 05.2004
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