Application Support Engineer (IBM z/OS Platform)

Company Description

ATPCO is the world's primary source for air fare content, holding over 200 million fares across 160 countries. Every day, the travel industry relies on ATPCO's technology and data solutions to help millions of travelers reach their destinations efficiently. Join us and contribute to the development of innovative applications that power global travel. ATPCO is everywhere people buy flights.

We’re not just shaping the future of air travel– we’re redefining how and where great work happens. At ATPCO, we believe in flexibility, trust, and a culture where your wellbeing comes first

Why Join Us?

✅ Remote-First Culture – Flexibility to work from home in your country of hire

✅ “Leave Your Way” PTO– Take the time you need, when you need it

✅ 401(k) with Generous Employer Match– Invest in your future

✅ Comprehensive Benefits– Medical, dental, vision, & mental health

✅ Global Tuition and Gym Reimbursement– Learn and grow on us

✅ Standby Flight Program– Explore the world

✅ Inclusive, Collaborative Culture– Be seen, heard, and valued

Our Culture:

We’ve built a remote-first culture rooted in trust, transparency, and belonging. With open-door leadership, weekly 1:1s, and real-time recognition, we keep our people connected and valued—no matter where they work.

Our cultural pillars of Collaboration, Empowerment, Innovation, Learning, Transparency, and Trust guide how we show up for one another and grow together.

Job Description

As an Application Support Engineer (IBM z/OS Platform) at ATPCO, you will be responsible for the implementation, enhancement, and maintenance of a wide range of ATPCO applications and services. In this role, you will collaborate with cross-functional teams to design and develop software solutions that align with business objectives, ensuring high performance, scalability, and reliability. You'll also play a critical role in improving existing applications, integrating new features, and maintaining system functionality to meet evolving business need

Roles and Responsibilities

• Provide 24x7 Tier 2 support for all ATPCO applications and systems during both day and night oncall rotations, including weekends and holidays
• Support resolution of production issues, ensuring effective communication and customer satisfaction.
• Provide support during business hours for non-production environments.
• Perform applications and database maintenance activities such as MPM data uploads, historical data migrations, back-door data fixes and address customer subscription data processing issues.
• COBOL programs and JCL maintenance
• Maintain deep understanding of ATPCO enterprise environment to quickly diagnose and resolve issues and keep abreast of changes to ATPCO applications and technologies.
• Work with business, product and technical teams to analyze problems, assess risks, and implement solutions.
• Work with PSS Tier 1 to maintain and optimize Control-M/EM batch processing jobs
• Take ownership of triaging production issues, and resolve or escalate appropriately, ensuring continuity of service.
• Monitor systems such as ServiceNow, Splunk Oncall, alerts, and group emails, and respond to issues in a timely manner.
• Produce regular Applications /system and performance metrics and reports for IT management using DB2 SQL and other tools.

Technical Skills Requirements:

IBM DB2 skills (SQL queries, stored procedures, performance tuning), Redis, Neo4J, MySQL, MongoDB, IBM Job Control Language (JCL), Shell scripting, COBOL, CICS, J2EE, Java batch, Control-M/EM Enterprise Scheduler, Linux, z/OS (TSO/ISPF), VMware, MQ Series, WebSphere, J2EE Applications  structure familiarity, ServiceNow, Monitoring Tools: (Grafana, Splunk, Dynatrace, site24x7, SolarWinds,  AWS CloudWatch),  XML, JDBC, experience in parsing Linux logs.

Professional Skills and experience:

• Minimum 2 years of IBM Mainframe and Distributed web/Cloud-based applications 24/7 support experience, including nights, weekends, and holidays
• Proven track record in IT Operations / Applications Production Support within complex enterprise environments.
• Builds initial rapport with team members, developing trust within the immediate team
• Accepts and integrates constructive feedback positively.
• Cooperatively engages with peers to achieve shared goals.
• Requires understanding and general application of concepts, theories, and principles to the area of work.                  
• Absorb new information when presented systematically and applies it effectively.
• Assists in debugging and troubleshooting issues under the supervision of senior engineers
• Proactively learns new skills and applies them to improve their work under the guidance of more senior team members.
• Engage in informal coaching and knowledge-sharing with colleagues and contribute to a collaborative and growth-oriented work environment.
• Background in Applications development/programming.
• Excellent analytical, troubleshooting, and problem-solving skills.
• Excellent oral and written communication skills for technical and non-technical stakeholders.
• Strong business acumen with the ability to quickly understand operational and business incident impact.
• Ability to take full ownership of production problems, anticipate and mitigate risks, escalate appropriately, and deliver workarounds under pressure.
• Proven ability to multi-task and prioritize urgent issues to meet SLA and KPI requirement
• Strong knowledge of DB2 (SQL queries, stored procedures, Application SQL performance tuning).
• Strong knowledge in JCL (Job Control Language)
• TSO/ISPF/SDSF experience.

Salary Range:  USD $98,000 – $115,000

*The disclosed range estimate has not been adjusted for applicable geographic differential associated with the location*

Additional Information

At ATPCO, we are deeply committed to diversity, equity, and inclusion. Our supportive policies promote work-life balance through flexible work arrangements, and we cultivate a workplace where every employee feels valued, respected, and a true sense of belonging.

We consider qualified applicants for employment without regard to race, gender, age, color, religion, national origin, citizenship status, marital status, disability, sexual orientation, protected military/veteran status, gender identity or expression, genetic information, marital status, medical condition, or any other legally protected factor

All your information will be kept confidential according to EEO guidelines.