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    SI

    Sigma Software

    AdTech

    Senior/Lead DevOps Engineer

    Warsaw, PolandRemoteFull-timePosted 1w ago
    All Sigma Software jobs

    Job description

    • Design, implement, and maintain enterprise-grade Kubernetes platforms and cloud infrastructure
    • Lead infrastructure delivery activities from the discovery phase through production rollout
    • Make architectural and technical platform decisions aligned with Customer requirements
    • Automate infrastructure provisioning and configuration management using Infrastructure as Code practices
    • Implement and maintain CI/CD pipelines and GitOps workflows
    • Configure and support secure cluster operations, secrets management, and platform hardening
    • Collaborate directly with Customers, vendors, and external stakeholders during technical workshops and solution discussions
    • Analyze existing infrastructure environments and identify optimization opportunities
    • Prepare technical proposals, implementation plans, estimates, and delivery roadmaps
    • Troubleshoot production environments and perform root cause analysis
    • Support compliance, security, and operational readiness requirements for government environments
    • Mentor engineers and contribute to technical leadership within the team
    • 5+ years of commercial experience as a DevOps Engineer in enterprise environments
    • Deep expertise in Kubernetes administration, networking, and security
    • Experience with Infrastructure as Code tools such as Terraform
    • Hands-on experience with AWS and/or Azure cloud platforms
    • Experience implementing GitOps practices using ArgoCD or similar tools
    • Strong Linux administration and troubleshooting skills
    • Experience with CI/CD automation and software delivery pipelines
    • Knowledge of secrets management solutions such as OpenBAO or HashiCorp Vault
    • Experience with identity and access management solutions such as Keycloak
    • Understanding of infrastructure security, CIS benchmarks, and platform hardening
    • Experience working with production enterprise infrastructure environments
    • Ability to work independently and make technical decisions
    • Experience communicating directly with Customers and stakeholders
    • Strong analytical and problem-solving skills
    • Upper-Intermediate or higher level of English

    WILL BE A PLUS

    • Experience with OKD or OpenShift administration
    • Experience with Ceph storage solutions
    • Knowledge of Helm packaging and customization
    • Experience with air-gapped environments and restricted infrastructure
    • Experience with vSphere administration
    • Experience delivering solutions to external hosting providers
    • Background in government, eGov, or registry-based systems
    • Understanding of compliance and operational requirements in public sector environments

    PERSONAL PROFILE

    • Strong ownership mindset and ability to lead technical initiatives
    • Ability to work effectively in ambiguous and evolving environments
    • Excellent communication and stakeholder management skills
    • Structured and proactive approach to problem-solving
    • Ability to prioritize tasks and manage multiple responsibilities
    • Strong collaboration skills within distributed teams
    • Leadership mindset with focus on delivery and quality

    Job details are sourced from the employer's original posting.

    Open job posting
    SI

    About the company

    Sigma Software

    We are looking for a Senior Go Developer to join our dynamic team and work on cutting-edge AdTech solutions. This role offers the opportunity to experiment with AI, LLMs, and emerging technologies while solving complex challenges in large-scale data processing.  CUSTOMER Our customer is a global leader in contextual advertising with more than 500 employees worldwide. They specialize in delivering highly relevant ads by leveraging AI, real-time technology, and large-scale data processing. Operating in the AdTech industry, they are recognized for innovation in Connected TV (CTV) advertising. The team you will join works with the agility of a startup while benefiting from the resources of a global organization. PROJECT You will contribute to the development of a smart advertising platform that processes terabytes of data to understand audiences and deliver precise, contextual ads. The platform combines AI, LLMs, and emerging technologies to push the boundaries of CTV advertising. In this role, you will own innovation end-to-end — from research and prototyping to delivering production-ready solutions.

    View all Sigma Software jobs
    Industry
    AdTech
    Open roles
    49

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