
Senior DevOps Engineer (DefenceTech)
Sigma Software · Lviv, Lviv Oblast, Ukraine
- Software & SaaS
- 1,001–5,000 employees
- London
Strong hiring record · median 36 days open
All reasons
In its favour
- Posted today
- Still listed on the employer's own board
- Design, implement, and maintain scalable AWS-based infrastructure across multi-account environments
- Develop and support Infrastructure as Code solutions using Terraform modules and reusable configurations
- Configure and standardize backup and disaster recovery processes for cloud services and SaaS platforms
- Implement secure backup strategies including cross-account replication, encryption, Object Lock (WORM), and isolated backup environments
- Perform restore testing for databases and critical systems and validate real RTO/RPO indicators
- Create and maintain operational documentation, runbooks, and technical procedures in English
- Automate infrastructure and operational processes using Bash and/or Python
- Manage and support Kubernetes clusters and Helm deployments
- Monitor backup jobs and infrastructure reliability and configure alerting mechanisms
- Collaborate with internal DevOps teams through merge request workflows and infrastructure reviews
- Assess and improve cloud infrastructure resilience and security posture
- At least 5 years of commercial experience in DevOps, Cloud Infrastructure, or Site Reliability Engineering
- Strong hands-on experience with AWS services including Organizations, IAM, S3, RDS, AWS Backup, KMS, and EKS
- Deep understanding of AWS multi-account architecture and cloud security best practices
- Production-level experience with Terraform including modules, remote state management, and multi-environment deployments
- Strong practical experience with Kubernetes and Helm
- Solid Linux administration skills
- Experience with automation and scripting using Bash and/or Python
- Proven experience implementing backup and disaster recovery strategies in production environments
- Hands-on experience performing production data restoration and validating RTO/RPO metrics
- Experience writing technical documentation and operational runbooks in English
- Understanding of cloud security principles and infrastructure resilience practices
- At least an Intermediate level of English
WILL BE A PLUS
- Experience with GitLab APIs, export, and repository mirroring
- Experience with SaaS backup solutions
- Experience backing up Microsoft 365 environments
- Familiarity with security-focused or high-availability infrastructure environments
- Experience working in DefenceTech or other mission-critical domains
PERSONAL PROFILE
- Strong ownership mindset and ability to work independently in a high-responsibility environment
- Attention to detail and operational reliability
- Passion for automation, infrastructure resilience, and continuous improvement