Senior Application Support Specialist
📍 Warsaw, Poland (hybrid model: 3 days per week in the office)
🌍 International logistics organization
About the Role
We are looking for an experienced Senior Application Support Specialist ((Enterprise Platform Operations) to join a global team responsible for supporting and optimizing a portfolio of mission-critical, cloud-native applications used across a worldwide logistics network.
You will work in a modern technology environment focused on delivering highly scalable digital products built on microservices architecture, real-time data processing, and advanced cloud technologies. This role combines deep technical troubleshooting, platform reliability, performance optimization, and close collaboration with engineering teams to ensure seamless business operations.
As a senior member of the team, you will take ownership of complex production issues, contribute to strategic support initiatives, and help shape best practices across the application support function.
Your Responsibilities:
- Manage and resolve application incidents within agreed service levels (SLAs)
- Investigate and resolve complex production issues affecting business-critical applications
- Collaborate with Development, DevOps, SRE, QA, and Infrastructure teams to implement permanent solutions
- Communicate effectively with senior stakeholders regarding critical incidents, root causes, and improvement initiatives
- Monitor application and system performance, identifying opportunities for enhanced stability, scalability, and supportability
- Develop, maintain, and monitor Error Budgets for supported applications
- Design and implement automated monitoring, alerting, and observability solutions
- Lead support-related projects and continuous improvement initiatives
- Analyze support metrics and application performance data to identify trends and optimization opportunities
- Create and maintain technical documentation and knowledge base articles
- Mentor less experienced team members and contribute to knowledge-sharing initiatives
- Participate in an on-call rotation supporting a global 24/7 production environment
What We Are Looking For:
- 4+ years of experience in Application Support, Technical Support, Production Support, or a similar role
- Experience troubleshooting complex enterprise applications in production environments
- Strong problem-solving and analytical skills
- Good understanding of microservices architecture and distributed systems
- Experience with ITSM processes and tools
- Hands-on experience with Jira, Confluence, or other Atlassian products
- Strong communication skills and ability to work with both technical and business stakeholders
- Excellent English skills, both written and spoken
- A proactive mindset, ownership attitude, and customer-focused approach
Nice to Have:
- Experience with cloud-native applications and platforms
- Knowledge of scripting or programming languages
- Familiarity with Site Reliability Engineering (SRE) practices
- Experience supporting high-availability, large-scale enterprise platforms
- Background in monitoring, observability, and performance optimization
Technology Stack:
- Kubernetes
- Docker
- Kafka
- MongoDB
- Cloud Technologies
- Microservices Architecture
- Atlassian Suite (Jira, Confluence)
- ITSM Tools
- Machine Learning & AI-enabled platforms
What’s in It for You:
- Opportunity to support and improve large-scale global platforms used by thousands of users worldwide
- Work with modern cloud-native technologies and engineering best practices
- Exposure to highly scalable, high-availability systems and complex business processes
- International and collaborative work environment
- Professional development opportunities and access to experienced technology specialists
- Benefits package including private healthcare (Luxmed) and sports card (Multisport)