Senior DevOps & Infrastructure Security Engineer – Payments and Microservices

Project overview

Unleash the Power of Scale & Innovation — Shape the Future of Payments Technologies

Krakow-based opportunity with hybrid work model (up to 3 remote days per week).

As a Senior DevOps & Infrastructure Security Engineer – Payments and Microservices, you will be working for a leading international IT company specializing in high-speed, high-reliability payment solutions. You will play a critical role in supporting complex, regulated payment infrastructures, driving service stability, security, and operational excellence across a variety of cutting-edge technologies. Join us to push the boundaries of fintech innovation and elevate your career to new heights.

Responsibilities

You’re ideal for this role if you have:

• Own the reliability, change delivery, and continuous improvement of a complex payments technology environment, encompassing IBM WebSphere, IBM MQ, Oracle, SFTP, APIs, and Kubernetes-based microservices.
• Build, support, and optimize CI/CD pipelines and orchestration solutions to ensure robust, automated deployment processes.
• Manage incident resolution end-to-end, coordinating cross-functional teams, updating stakeholders, and conducting root-cause analyses for swift recovery.
• Develop and maintain detailed support documentation, runbooks, and ensure on-call readiness for critical services.
• Support IBM MQ and WebSphere applications, including security configurations (TLS), performance tuning, and troubleshooting connectivity or message flow issues.
• Collaborate with DBA teams to optimize database performance, manage high availability and disaster recovery configurations.
• Lead secure SFTP integrations, managing keys, certificates, automation, and operational controls.
• Operate and automate microservices on Kubernetes, covering deployment, scaling, secrets management, ingress, and observability.
• Improve CI/CD and release practices, standardizing operational health checks, SLIs, logging, metrics, and tracing.
• Automate routine tasks via scripting or Infrastructure as Code, enhancing operational efficiency.
• Support operational maturity initiatives through high-quality documentation, adherence to standards, and SRE practices.
• Coordinate changes across teams, balancing delivery speed with stability and regulatory compliance.
• Communicate effectively with technical and non-technical stakeholders regarding project status, risks, and dependencies.
• Contribute to ITSO activities, ensuring service health, operational readiness, and sustainability.
• Contribute to risk and control management, maintaining compliance and supporting risk assessments.
• Mentor colleagues and promote best engineering and operational practices.
• At least 5 years of hands-on DevOps and Platform Engineering experience in high-availability environments, preferably within financial services or payments.
• Proven expertise with Kubernetes (deployment, scaling, configuration, troubleshooting).
• Strong operational knowledge of Oracle databases, including connectivity, performance, and HA/DR strategies.
• Extensive experience supporting IBM MQ and IBM WebSphere Application Server in production settings.
• Proficiency in SQL and Linux system administration.
• Skilled in CI/CD automation tools and scripting (Git, Bash, Python), with experience in Infrastructure as Code.
• Deep knowledge of SFTP integrations, including security and automation.
• Solid capabilities in observability (logs, metrics, traces), performance tuning, and capacity management.
• Familiarity with Agile and DevOps tools such as Jira, Confluence, and SharePoint.
• High level of autonomy, organization, and ability to prioritize effectively.

Nice to have

Language Required for the role:

Eligibility to work in Europe:

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Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

• Experience in payments, particularly SEPA.
• Knowledge of API gateways, service meshes, container security, vulnerability management.
• Familiarity with ITIL processes and operational governance.
• Experience with resilience engineering, chaos testing, and disaster recovery testing.
• Skills in Java, Puppet/Ansible, or similar configuration management tools.
• Fluent English (verbal and written).
• Only candidates with an existing legal right to work in the European Union will be considered for this role.

Project details

• Start: flexible
• Remote: hybrid
• Location: Krakow, PL