Senior DevOps Engineer – Large-Scale Infrastructure

Sii Sp. z o.o.; Lublin; Hybrid; PLN 200,000 - 300,000; Full time

Job summary

A leading technology company in Poland is seeking a senior DevOps professional to manage and automate large-scale Kubernetes and AWS infrastructures. The ideal candidate will have over 5 years of experience, strong AWS and Kubernetes management skills. This role offers a great working environment with an attractive benefits package, including a focus on employee growth and a stable company background with significant revenue.

Benefits

Private healthcare

Benefits cafeteria platform

Car discounts

Investment in employee growth

Qualifications

• 5+ years of experience in a senior DevOps, SRE, or infrastructure engineering role.
• Proven track record in managing large-scale production environments.
• Hands-on experience with patching, backups, and data retention.

Responsibilities

• Operate and optimise large-scale Kubernetes clusters and AWS infrastructure.
• Automate patching, vulnerability remediation, and deployments.
• Collaborate with engineering and operations teams for heightened reliability.

Skills

AWS expertise

Kubernetes management

Automation using Argo CD

English communication skills (B2/C1)

Job description

• We are seeking a senior DevOps professional who excels in large-scale environments, embraces automation, and understands how to maintain the reliability and security of critical systems. If building resilient, cloud-native infrastructure in AWS and Kubernetes sparks your interest, this is your chance to make a meaningful impact.
• You’ll join a project for a global leader in cloud communications – a company recognised worldwide for its APIs powering voice, video, and messaging. Together, we design, automate, and secure platforms spanning dozens of Kubernetes clusters and hundreds of thousands of servers.
• Join Sii and help shape the backbone of a platform trusted worldwide!

responsibilities :

• Operate and optimise large-scale Kubernetes clusters and AWS infrastructure
• Automate patching, vulnerability remediation, and deployments using Argo CD and related tools
• Build and maintain golden images, lifecycle policies, and data retention strategies
• Ensure security and compliance through encryption, backup management, and governance policies
• Collaborate with engineering and operations teams to keep platforms highly available, scalable, and resilient

requirements-expected :

• At least 5+ years of experience in a senior DevOps, SRE, or infrastructure engineering role
• Proven track record in managing large-scale production environments (tens of Kubernetes clusters, hundreds of thousands of servers)
• Strong expertise in AWS infrastructure, including automation, patching at scale, and building resilient systems
• Hands-on experience in creating and managing infrastructure components such as golden images, lifecycle policies, backups, volume encryption, backup encryption, and data retention policies, along with Kubernetes and GitOps practices (e. g. , Argo CD)
• Proficient English communication skills (B2/C1) for collaboration in an international environment
• Residing in Poland required

offered :

• Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
• Employment stability - revenue of PLN 2. 1BN, no debts, since 2006 on the market
• We share the profit with Workers - over PLN 60M has already been allocated for this aim since 2022
• Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
• Comfortable workplace – class A offices or remote work
• Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
• PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
• Investment in your growth – meetups, webinars, training platform and technology blog – you choose
• Fantastic atmosphere created by all Sii Power People