Denis Shipilov

Managed DevOps/SRE team (1–2 in-house), including hiring, mentoring, performance reviews

Hired and onboarded CTO for the game development side

Managed backlog and task assignment across teams

Actively collaborated with development, QA, and business teams

Temporarily acted as CTO for six months

Designed, implemented, and maintained scalable infrastructure; managed access control

Architected and deployed high-availability solutions

Developed and maintained CI/CD, Observability, IaC

Oversaw company processes

Built a fault-tolerant, scalable server architecture for mobile online gaming from scratch

Set up development and operations processes nearly from zero

Implemented 100% unified CI/CD + GitOps

Achieved 90%+ IaC coverage of infrastructure (only some physical servers ordered manually)

Implemented 100% Observability coverage across infrastructure

Implemented zero-downtime backup coverage for entire infrastructure

Planned all infrastructure work for production launch before hiring staff; hit projections with only one-month delay (due to dev estimates)

Maintained 100% production uptime throughout the entire operation

Managed DevOps/SRE team (1 in-house + 3 outsourced), including hiring, mentoring, performance reviews

Managed backlog and task distribution across teams

Actively collaborated with development, QA, and business teams

Temporarily acted as CTO for six months

Prepared reports on development and operations projects

Designed, implemented, and maintained scalable infrastructure; managed access control

Architected and deployed high-availability solutions

Developed and maintained CI/CD, Observability, IaC

Oversaw release, incident, problem, and change management

Reduced MTTR by ~300% through improved monitoring, alerting, and creation of technical and business metrics

Increased successful deployment rate from <50% to 100%

Raised SLA availability to 99.95% within months and sustained it for over six months

Shortened time-to-market for releases (no exact figures)

Standardized CI/CD pipelines for 100% of projects → improved TTM

Initiated IaC adoption for all environments (dev/stage/prod)

Developed internal TCO calculator → achieved up to 30% cost savings per phase

Reduced unplanned and operational workload by 20%/35% respectively

Migrated infrastructure to a centralized observability platform

Organized certified penetration testing → improved product security and quality

Contributed to implementing Scrum-like processes → increased delivery velocity and fewer release errors

Created and rolled out candidate evaluation framework and individual development plans for SRE/DevOps staff

Built demo environment and documentation for successful RosReestr registration

Launched blue-green deployment project for zero-downtime releases

Integrated with cloud providers and secured custom discounts

Initiated and supervised Open Source initiative launch (later stalled without my involvement)

Implemented IaC/CasC in infrastructure

Migrated CI/CD to CasC

Moved most internal services to new infrastructure

Introduced zero-downtime backup system

Developed technical tools for managing repositories and artifact storage

Enhanced and added numerous operational tools

Streamlined SDLC/ITSM processes, launched Change Management, linked modules to CMDB

Implemented monitoring and logging for all environments → reduced incident resolution time

Boosted environment performance up to 5x, reducing environment failures significantly

Designed HA architecture (99.999%) and drove necessary development changes

Built zero-downtime update and backup processes

Launched load testing project

Integrated infrastructure management tools with ESM system (via Change Management/CMDB)

Restored production from full downtime

Redesigned deployment process, decoupling service dependencies → eliminated infrastructure failures

Implemented new monitoring with auto-discovery and health checks for seamless node onboarding

Designed new infrastructure scheme laying foundation for future development

Developed and maintained infrastructure

Built task pool for team and conducted code reviews

Implemented IaC unifying all company projects

Built new centralized CI/CD

Developed Docker Swarm-based cluster for internal and external infrastructure (custom service discovery with auto-monitoring)

Migrated all environments to new infrastructure (including from cloud), reducing costs

Maintained GNU/Linux distribution

Managed git/svn repositories

Maintained artifact repositories

Developed and maintained CI systems

Built and released distributions

Ported distribution to 'Elbrus' platform (Debian-based)

Migrated distribution base from Scientific Linux 6 to CentOS 7

Enhanced OS installer (new features)

Developed centralized product branding scheme

Optimized repositories and build infrastructure → reduced build time by up to 3x

Automated bare-metal deployment → reduced test cycle by 15–20% and improved team convenience