SENIOR OPERATIONS ENGINEER (ELASTIC STACK)

ABOUT THE COMPANY

LITIT, a joint venture between NTT DATA and Reiz Tech, is a company with deep-rooted industry know-how, dedicated to innovation within the IT sector. Its primary focus is delivering high-quality solutions in the DACH region. With a commitment to excellence, LITIT combines the best of German precision, Japanese work ethics, and Lithuanian talent to provide unparalleled IT service and support to its clients.

ABOUT THE CLIENT

Our client is one of Germany’s leading financial services providers, with a strong presence across the insurance and banking sectors. Backed by decades of stability and continuous growth, the company is part of a larger cooperative network, giving it a unique position in supporting individuals, businesses, and communities. With millions of customers and a reputation built on trust, responsibility, and innovation, the organization combines tradition with forward-looking solutions. It is deeply committed to digital transformation, sustainability, and empowering its employees to shape the future of financial services.

ABOUT THE ROLE

We are seeking an experienced Operations Engineer to join our client’s infrastructure and operations team. This role focuses on managing and maintaining secure, large-scale cloud environments rather than software development or DevOps. You will be responsible for operating, maintaining, and optimizing systems with a strong focus on Elastic Stack, Elastic Cloud Enterprise (ECE), and Linux administration. The ideal candidate has deep experience in cloud operations, patch management, system reliability, and automation of typical operations tasks. This position is perfect for someone who enjoys working in complex enterprise environments and takes pride in ensuring stability, scalability, and security across mission-critical systems.

RESPONSIBILITIES

• Operate and maintain Elastic Stack and Elastic Cloud Enterprise (ECE) clusters in secure, air-gapped environments

• Support the design and development of Elasticsearch and ECE architectures to ensure scalability and reliability

• Perform cluster configuration and updates, including LDAP, TLS, and SMTP integrations

• Manage user and role access, and ensure secure authentication and communication setups

• Develop and maintain Ansible playbooks and AWX configurations to automate infrastructure deployment and updates

• Deploy and manage AWX on Kubernetes, ensuring integrations and configurations are properly implemented

• Create, optimize, and maintain index templates, Logstash pipelines, Beats configurations, and Elastic dashboards for improved observability and data management

• Provide operational support and troubleshooting for Elastic Stack and related components

• Apply Linux system patches and perform general maintenance on virtual machines while ensuring minimal impact on running applications

• Configure networking, logical volumes, and security rules (iptables) to maintain a secure and efficient environment

• Compile and maintain system-level software (e.g., Python, Git) and manage containerization tools

• Write Python scripts to automate recurring operational tasks and improve system efficiency

• Collaborate with internal teams to ensure smooth operations and consistent service availability

• Continuously improve system performance, monitoring, and automation practices to drive operational excellence

REQUIREMENTS

• Proven experience as an Operations Engineer, Systems Engineer, or similar role

• Strong Linux administration skills (CentOS, Ubuntu, SUSE)

• Hands-on experience with Elastic Stack (Elasticsearch, Logstash, Kibana) and Elastic Cloud Enterprise (ECE)

• Proficiency with Ansible and AWX for infrastructure automation and configuration management

• Experience managing and maintaining cloud environments in enterprise settings

• Familiarity with Kubernetes-based deployments

• Solid understanding of LDAP, TLS, and SMTP integrations

• Strong Python scripting skills for automation and operational tooling

• Excellent troubleshooting and problem-solving abilities in secure or air-gapped environments

• Willingness and readiness to travel as required by project or client needs is expected. This may include occasional domestic or international travel, sometimes on short notice.

Nice to Have

• Experience with PostgreSQL and containerization tools

• Familiarity with infrastructure monitoring and observability best practices

• Background in Linux distribution migrations (e.g., CentOS to Ubuntu/SUSE)

WHAT WE OFFER

• Learning opportunities with compensated certificates, learning lunches, and language lessons.

• Chance to switch projects after one year.

• Team building twice a year.

• Office in Vilnius, Lithuania that offers themed lunches and a pet-friendly environment.

• Remote work opportunities.

• Flexible time off depending on a project.

• Seasonal activities with colleagues.

• Additional health insurance and loyalty days for Lithuanian residents.

• Referral bonuses.

• Recognition of important occasions of your life.