Sebastian Vaisov

Sebastian Vaisov Email and Phone Number

Lead DevSecOps Engineer @ Gemba
Valencian Community, Spain
Sebastian Vaisov's Location
Valencia, Valencian Community, Spain, Spain
Sebastian Vaisov's Contact Details

Sebastian Vaisov personal email

Sebastian Vaisov phone numbers

About Sebastian Vaisov

With 15 years of experience in tech, I specialize in elevating server management, cloud infrastructure, microservices, monitoring, databases, IaC, and CI/CD. My deep technical expertise across the full DevOps toolchain and practices allows me to implement innovative, practical, and impactful solutions that drive DevOps transformations and process optimizations. I excel in creating robust, scalable, and highly available systems, always with a focus on security and cost efficiency.In my recent roles, I have led successful cloud migrations, optimized infrastructure, and adopted DevOps practices to reduce costs and enhance performance. My leadership abilities are underscored by my coaching style, informed by neuroscience research, which fosters a work culture where challenges are met with enthusiasm and continuous growth is a part of the team's DNA. I am adept at building and inspiring high-performing DevOps teams, having expanded and managed teams, implemented Agile methodologies, and streamlined communication and deployment processes.My technical skill set includes expertise in cloud computing (AWS, Azure, GCP, OCI, ProfitBricks, Hetzner), virtualization (OpenVZ, VMware), containerization (Docker, Kubernetes, Rancher, Nomad), and configuration management and automation (Ansible, Chef, SaltStack, Terraform, Helm, Packer, Rundeck). I have extensive experience with CI/CD tools (GitLab, GitHub, ArgoCD, TeamCity, Jenkins), scripting (Python, Bash, Ruby), database management (PostgreSQL, MySQL, MariaDB, Percona, Oracle DB, MSSQL, Redis, Memcached, MongoDB, Cassandra, QuestDB, TimescaleDB, InfluxDB), and monitoring systems (Nagios, Munin, Splunk, Icinga, Grafana, Newrelic, Graylog, ElasticSearch, ELK, Prometheus, Sentry).My soft skills in team leadership and management, strategic planning, Agile methodologies (Scrum/Kanban), performance reviews, project management, innovation management, team building, communication, negotiation, coaching and mentoring, effective communication, problem-solving, time management, critical thinking, adaptability, cross-cultural communication, documentation and workflow management, on-call support, and incident handling are complemented by my commitment to fully remote work environments.I am actively seeking remote leadership opportunities in Europe or the US. I am ready to bring my blend of technical prowess and people-first leadership to new challenges, driving collective success and cherishing the journey as much as the results. Ready to innovate, collaborate, and lead? Let's connect!

Sebastian Vaisov's Current Company Details
Gemba

Gemba

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Lead DevSecOps Engineer
Valencian Community, Spain
Website:
ge.mba
Employees:
18
Sebastian Vaisov Work Experience Details
  • Gemba
    Lead Devsecops Engineer
    Gemba
    Valencian Community, Spain
  • Gemba
    Lead Devops Engineer
    Gemba May 2024 - Present
    London, England, Gb
    Bringing Fintech to the new heights!
  • Benme
    Cto
    Benme Apr 2023 - May 2024
    Vilnius, Lt
    • Strategic Product Development: Collaborated with clients for requirements gathering. Directed user-friendly feature development, improving usability and performance. Vetted and outsourced to development agencies.• Stakeholder Engagement: Supported CEO in investor pitches. Achieved GDPR compliance, enhancing platform trustworthiness.• Technical Leadership: Mentored and coached 6-member team, building skills, engagement, motivation, and high-performing workforce.• Infrastructure Management: Secured and optimized infrastructure for the platform and internal tools on AWS, leveraging services like EKS, RDS, SQS, Auth0, Sentry, Grafana/Prometheus and others.• Operational Excellence: Managed daily operations with a balanced approach, emphasizing productivity, accountability, and team well-being to prevent burnout, resulting in a motivated and efficient team.
  • Career Break
    Professional Development
    Career Break Nov 2022 - Apr 2023
  • Syntropy
    Devops Team Lead
    Syntropy Nov 2021 - Nov 2022
    Gibraltar, Gibraltar, Gi
    • Team Building & Agile Transformation: Expanded DevOps team from 1 to 7 members within a year. Implemented Agile workflows, enhancing team dynamics, happiness and productivity.• Strategic Leadership & Coaching: Guided infrastructure planning, tool integration, and coached team using neuroscience principles, fostering technical and personal growth.• Process Optimization: Developed roadmap focused on team well-being and company goals. Streamlined communication and deployment processes, boosting overall efficiency.• Stakeholder Management & Technical Support: Organized and led stakeholder meetings and provided hands-on support across Kubernetes, GitLab, TimescaleDB, Postgres, NATS, Vault, Terraform, Packer, Ansible, and other tech.
  • Syntropy
    Senior Devops Engineer
    Syntropy Mar 2021 - Nov 2021
    Gibraltar, Gibraltar, Gi
    • Infrastructure Optimization: Stabilized legacy ELK cluster for high availability and resilience. Resolved Kubernetes storage challenges and implemented HA solutions.• Automation & Streamlining: Automated cloud management and node bootstrapping with Ansible and Terraform. Implemented GitLab pipelines for optimized infrastructure management and deployment.• Security Enhancement: Secured existing infrastructure based on security best practices, safeguarding against vulnerabilities and threats.• Tech Stack Management: Managed diverse technologies including Kubernetes, Elasticsearch, Prometheus, Grafana, Opsgenie, GitLab, Terraform, Ansible, Nomad, TimescaleDB, Postgres, and multiple cloud platforms (AWS, Azure, GCP, Hetzner, OCI, Vultr, DigitalOcean and 100+ others clouds and hosting providers).• Technical Expertise: Demonstrated proficiency in systems, networking, troubleshooting, VPN, load balancing, security, and incident management for robust performance and reliability.• Cloud Automation Excellence: Automated VM and bare-metal server bootstrapping across 100+ clouds and hosting providers, enhancing deployment efficiency and scalability.
  • Pharma4U Gmbh
    Senior Devops Engineer (Temp Contract)
    Pharma4U Gmbh Oct 2020 - Jan 2021
    • System Architecture Design: Designed system infrastructure architecture tailored to meet specific requirements.• Automation and Deployment: Automated servers and services deployment utilizing Ansible.
  • Cujo Ai
    Senior Devops Engineer (Temp Contract)
    Cujo Ai Nov 2019 - Aug 2020
    Walnut, California, Us
    • Cloud Migration: Helped the team with migration of microservices and data from GCP to AWS.• Monitoring Architecture: Architected and implemented dockerized TICK stack for monitoring, including automated Chronograf and Grafana setup using TeamCity and Docker.• AWS Infrastructure Automation: Automated infrastructure deployment to AWS using Terraform/Terragrunt, Chef, and TeamCity.
  • Danske Bank
    Senior Devops Engineer (Temp Contract)
    Danske Bank Mar 2019 - Oct 2019
    Copenhagen, Capital Region Of Denmark, Dk
    • Zero-Downtime Upgrades: Accomplished zero-downtime upgrades of ELK and Kafka clusters on Kubernetes.• Optimization and Scaling: Enhanced ELK and Kafka statefulsets for improved efficiency and stability. Managed and scaled multiple Kubernetes clusters for robust infrastructure.• Strategic Consultancy: Provided expert advice on infrastructure scaling, growth, and cost optimization, guiding strategic decisions.• Kubernetes Management: Improved Helm templates for streamlined cluster management. Specialized in ELK and Kafka architecture, setup, optimization, and maintenance on Kubernetes.• Infrastructure Automation: Managed infrastructure creation and maintenance using Terraform and Ansible for efficient and reliable systems
  • Tesonet
    Devops Lead
    Tesonet Jan 2018 - Jan 2019
    Vilnius, Vilniaus, Lt
    • Containerization and Cloud Migration: Led dockerization and migration of Python/PHP apps to highly scalable 200+ node Kubernetes clusters on multiple clouds.• Infrastructure Overhaul: Implemented robust security, high-availability, auto-recovery, backups, and cost optimizations to elevate existing infrastructure reliability and efficiency.• Resource and Team Management: Optimized cloud resources across Hetzner and AWS. Headed and mentored a 3-member DevOps team for major projects.• Kubernetes and Database Specialization: Managed advanced HA Kubernetes setups with Istio and Rancher. Optimized Couchbase, RabbitMQ, Redis, MongoDB for high availability, sharding, and performance.• Automation, Monitoring, and Documentation: Deployed Ansible, GitLab for CI/CD automation, and Nagios, Graylog for monitoring/logging. Created detailed procedure documentation for streamlined operations.• MySQL high availability implementation: Implemented MySQL replication and high-availability solution.• Performance troubleshooting: Skilled in identifying and resolving complex performance issues, maintaining high system reliability.
  • Delivery Hero
    Senior Linux System Engineer
    Delivery Hero Dec 2012 - Dec 2017
    Berlin, Berlin, De
    • Systems Updates and Automation: Designed and automated package updates using Python/Confluence. Utilized Chef, SaltStack, and scripting (Bash, Python) for automating daily tasks, custom backup solutions, and infrastructure setup/configuration management. Developed custom Nagios plugins.• Cloud, Database, and Server Administration: Managed VMs (Ubuntu, CentOS, VyOS), databases (Postgres, MySQL), mail servers (Postfix, Amavis), web servers (Apache, Nginx, Uwsgi) across ProfitBricks, Hetzner, AWS. Administered database setup, replication, maintenance, and optimal performance.• Infrastructure Monitoring Migration: Led migration from Icinga to Icinga2 for improved monitoring capabilities and system reliability.• Robust Monitoring and High Availability: Deployed Icinga/Nagios, Munin, Splunk for comprehensive monitoring. Administered RabbitMQ, GlusterFS, Memcached, Redis for high availability and caching.• System Security, On-Call and Troubleshooting: Configured network security with IPTables, Vyatta. Skilled in troubleshooting, debugging performance issues, and maintaining system stability. Provided on-call support and incident resolution.
  • Uab Debesynas
    Co-Founder
    Uab Debesynas Apr 2015 - Aug 2017
    • Pfsense, Munin, SolusVM, Plesk, Blesta setup, maintenance• VPS, Shared hosting customer support, troubleshooting
  • Seb Bankas
    Is Administrator
    Seb Bankas Mar 2012 - Nov 2012
    Vilnius, Vilniaus, Lt
    • Atlassian Confluence Implementation: Designed, planned, and implemented the setup and maintenance of Atlassian Confluence company-wide.• Server and Application Management: Managed deployment and maintenance of IBM WebSphere servers, JAVA applications, and Tomcat. Handled MQ messages and queues.• On-Call Support: Provided on-call duty support and incident management.
  • Metasite Business Solutions
    System Administrator
    Metasite Business Solutions Jul 2007 - Feb 2012
    Vilnius, Vilniaus, Lt
    • Virtualization and Cloud Migration: Led migration of physical servers to OpenVZ virtual environment for improved efficiency and scalability. Handled setup and maintenance of AWS EC2 cloud instances.• Network and Security Management: Implemented and maintained Fortigate firewall, IPSEC/PPTP VPN setups for robust network security. Configured network protection measures.• Server Administration: Managed CentOS, Debian Linux, and Windows Server 2003/2008 instances. Handled installation, configuration, maintenance across physical and virtual environments.• Web, Database, and Monitoring Systems: Optimized Apache web and MySQL servers. Installed and configured Oracle DB, MSSQL, PostgreSQL with backup setups. Deployed and maintained Big Brother monitoring system and Jira for issue tracking.• End-User Support: Provided installation, configuration, maintenance for Windows workstations and PC hardware as part of local helpdesk duties. Delivered on-call technical support for critical system issues.
  • Elneta, Uab
    Network Administrator
    Elneta, Uab Oct 2006 - Jul 2007
    • Conducted basic configuration of Linux servers, ensuring operational efficiency.• Provided helpdesk support via phone and email, resolving hosting and email-related issues.• Set up networks for small office environments, ensuring reliable and efficient connectivity.

Sebastian Vaisov Education Details

  • Vilnius Business College
    Vilnius Business College
    Network And System Administration/Administrator

Frequently Asked Questions about Sebastian Vaisov

What company does Sebastian Vaisov work for?

Sebastian Vaisov works for Gemba

What is Sebastian Vaisov's role at the current company?

Sebastian Vaisov's current role is Lead DevSecOps Engineer.

What is Sebastian Vaisov's email address?

Sebastian Vaisov's email address is se****@****ovas.lt

What is Sebastian Vaisov's direct phone number?

Sebastian Vaisov's direct phone number is +370666*****

What schools did Sebastian Vaisov attend?

Sebastian Vaisov attended Vilnius Business College.

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