DLH-Support Engineer

We are seeking a Managed Services Support Engineer to join our team at Mobilink Microfinance Bank Ltd. (MMBL) to monitor, triage, and resolve issues within our Data Lakehouse (DLH) pipelines. The role focuses on an Iceberg/MinIO-based data lakehouse environment, utilizing Trino as the SQL query engine, Airflow for orchestration, and Grafana and OpenMetadata for monitoring and governance. The database and data warehouse layer operates on Oracle. This position involves continuous monitoring, first response, incident triage, deeper troubleshooting, root cause analysis, and incident ownership. Candidates must be comfortable working in a shift-based schedule that includes nights, weekends, and public holidays due to 24x7 pipeline monitoring requirements.

Key Responsibilities

- Monitor scheduled batch jobs, ETL pipelines, and file arrivals, proactively reporting any failures or delays to relevant stakeholders.
- Execute predefined SQL queries to perform basic data validation on pipeline outputs.
- Use *nix command line to navigate file systems, check logs, verify file presence and size, and perform basic file operations such as copying, moving, and permission checks.
- Verify file transfers across systems using SFTP/FTP, ensuring successful movement and flagging discrepancies.
- Identify and resolve obvious query or job errors independently, owning complex incidents and conducting thorough Root Cause Analysis (RCA) with proper documentation.
- Troubleshoot upstream and downstream pipeline failures within the DLH ecosystem, including Iceberg, MinIO, and Trino-based workflows.
- Write and debug SQL queries to investigate data inconsistencies and query failures.
- Perform data validation, reconciliation, and ongoing batch process monitoring to detect issues before they escalate.
- Troubleshoot batch job failures end-to-end using log analysis and basic shell scripting to automate repetitive checks.
- Communicate status updates and delays clearly to internal teams.
- Maintain and contribute to a knowledge base of recurring issues and resolutions to minimize repeat escalations.
- Provide clear and comprehensive handovers to incoming shifts, highlighting open or at-risk items.

Required Qualifications

- Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field.
- 2 to 3 years of experience in platform engineering or related operational roles.
- Proficiency in SQL and shell scripting within *nix environments.
- Experience with file transfer protocols such as SFTP/FTP.
- Solid understanding of ETL, Data Warehouse (DWH), and Data Lakehouse (DLH) concepts.
- Hands-on experience with batch and job monitoring processes.
- Strong incident handling and troubleshooting skills.
- Working knowledge of Python for scripting and automation tasks, including log parsing, file validation, and alerting.
- Direct exposure to Apache Iceberg, MinIO, or Trino, or the ability to apply traditional DWH/RDBMS knowledge to lakehouse and object storage architectures.
- Familiarity with S3-compatible object storage systems.
- Experience with Airflow or similar orchestration tools for pipeline scheduling.
- Prior experience in a Managed Services or operational support role.

Preferred Qualifications and Benefits

- Excellent problem-solving abilities and the capacity to work effectively in a fast-paced, agile environment.
- Strong triage instincts to quickly differentiate critical issues from noise.
- Clear and calm communication skills, especially under pressure.
- Willingness and ability to work shifts, including overnight hours, weekends, and public holidays, with sustained focus during quieter monitoring periods.
- Ownership mindset, ensuring issues are resolved or properly handed over rather than left incomplete.
- Eagerness to learn new tools and technologies rapidly.

About MMBL

Mobilink Microfinance Bank Ltd. serves over 48 million registered users, including more than 20 million monthly active customers across Pakistan. Combining traditional microfinance with mobile and digital banking technologies, MMBL operates 114 branches and 270,000 branchless banking agents. The bank offers a USSD-based digital channel providing savings, MSME loans, small housing loans, remittances, bill payments, mobile wallets, insurance, and various payment services. MMBL is dedicated to financial inclusion and fostering a workplace culture that values innovation, teamwork, and a customer-centric approach.

This role offers the chance to contribute meaningfully to transformative change, empowering millions with digital tools to succeed. If you are passionate about making an impact and thrive in a dynamic environment, this opportunity at MMBL is for you.