Senior Application Support Engineer

What we do:

At Cognizant, we are dedicated to helping the world's leading companies build stronger businesses — helping them go from doing digital to being digital. In Poland, our offices are in Gdańsk, Wroclaw, and Kraków. However proposed offer is based in the Client office based in Warsaw. With the capacity to support various clients, we offer a world of opportunities for both professionals and graduates. You can expect five-star training, a chance to realize your career goals, and a range of benefits. Be Cognizant!

Are you a highly experienced Senior Application Support Engineer or Production Support Engineer with a passion for ensuring the rock-solid stability and performance of critical, high-volume transaction processing systems? Do you thrive in a dynamic environment, leveraging your expertise in Unix, Java, and modern cloud technologies to drive operational excellence and automation?

Join our Technology division as a key member of our Applications Support team. You'll be at the forefront of maintaining systems that are the backbone of our business, processing millions of transactions globally for some of the world's most prestigious organizations within the financial and payment industry. This is an exceptional opportunity to make a tangible impact on mission-critical financial infrastructure.

What You'll Do Day-to-Day:

1. Ensure Application Stability: Take ownership of supporting and maintaining the stability of a diverse range of Unix-based Web and API applications, built with open-source technologies like Java, Hadoop, Postgres, and NoSQL.
2. Incident & Problem Management: Proactively monitor incident queues, troubleshoot complex issues, lead resolution conference calls, and perform thorough Root Cause Analysis (RCA) to prevent recurrence.
3. Change Management: Actively participate in the planning, deployment, and review of system changes, ensuring smooth and controlled releases in adherence to best practices.
4. Automation & Scripting: Write and maintain robust scripts (Unix, Python, Perl, Bash) to automate manual tasks, enhance system functionality, and improve performance monitoring.
5. Proactive Maintenance: Execute proactive maintenance activities and apply operational fixes to maintain system health and prevent downtime.
6. Client Solutions: Evaluate and provide ongoing technical solutions for issues reported by our clients.
7. Collaborative Support: Participate in on-call rotations, provide extended support when needed, and collaborate seamlessly with global and offshore teams to ensure 24/7 application and service availability.
8. Technical Leadership: Contribute to IT initiatives, write programs and scripts to achieve operational objectives, and effectively communicate with both technical and non-technical stakeholders.

What We're Looking For (Qualifications):

Basic Qualifications:

1. Minimum of 4 years of professional work experience with a Bachelor’s Degree, or an Advanced Degree.
2. Minimum of 3 years of hands-on experience in a Production Support or Application Support role.
3. Proficiency with Unix commands and scripting, with exposure to Web/API technologies and expertise in at least one API technology.
4. Proven experience supporting Java applications running in Apache Tomcat, JWS, or similar containers.

Preferred Qualifications:

1. Solid working experience in a 24/7 application support environment, driving high availability in active/active setups.
2. Excellent analytical and problem-solving skills with a strong automation mindset.
3. Good understanding of ITIL principles (Change, Incident, Problem Management) and experience with ticketing systems (e.g., ServiceNow, Remedy).
4. Experience with container technologies (Docker, Kubernetes) and CI/CD systems (Jenkins, Ansible).
5. Proficiency with log analysis tools (e.g., Splunk) and troubleshooting distributed systems or microservices.
6. Experience with web services (SOAP, REST) and testing tools (SoapUI, Postman).
7. Hands-on expertise with UNIX/Linux operating systems and BASH scripting.
8. Experience with relational databases (Oracle, PostgreSQL).
9. Excellent ability to communicate effectively with technical and non-technical stakeholders.
10. Knowledge of networking concepts and protocols (DNS, HTTP, TCP/IP, PKI, SSL/TLS, Digital Certificates, Security Scanning).
11. Prior working experience with card and transaction domain knowledge.
12. Experience on Kubernetes and Docker Platform.
13. Python, Perl Scripting Knowledge.
14. BigData Technologies like Hadoop, Kafka, HIVE.

What we offer:

1. Competitive salary with cafeteria benefits and bonuses
2. Opportunity to be part of a rapidly expanding global organization
3. Pleasant and inspiring working atmosphere
4. Professional development and clear career path
5. Training & development opportunities
6. Private healthcare and additional life insurance
7. Employee volunteering programs and opportunities
8. Inclusion and diversity in practice
9. Employee referral program in place

For more information about Cognizant, visit https://www.cognizant.com/en-pl/

If you are looking for another opportunity and are interested in the company, do not hesitate to apply online!

We are an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.