Technical Support Engineer

Technologies we use

Expected

• Unix
• Linux
• Shell
• SQL
• Python

Optional

• Airflow
• Kafka
• Zookeeper
• Disaster Recovery

Operating system

• Linux

About the project

We are looking for a Senior Technical Support Engineer to join a long-term project for a global financial institution.

The role focuses on providing advanced technical support for critical applications and production environments. You will be responsible for monitoring systems, troubleshooting incidents, supporting day-to-day operations and working closely with teams across UNIX, databases, networks and upstream/downstream systems.

This is a hands-on technical support role, combining application support, production troubleshooting, monitoring, IT Service Management and continuous improvement.

Important: Afternoon/Night Shift

This role requires working afternoon/evening hours and is NOT a standard daytime position.

The working hours need to overlap with:

16:00–00:00 CEST during the summer time

15:00–23:00 CET during the winter time

Availability to work these hours is a key requirement for the position.

The role is primarily remote, with the possibility of working from the client's office a few times per month (less than once a week)

Your responsibilities

• Provide advanced technical support for applications and production environments as part of BAU (Business as Usual) operations.
• Monitor systems and processes using tools such as Geneos ITRS, Airflow and BMC Control-M.
• Investigate and resolve incidents and technical issues of varying complexity.
• Work in accordance with Incident, Problem and Change Management processes.
• Prioritize tasks to ensure effective and reliable service delivery.
• Identify opportunities for automation and process improvements and support their implementation.
• Work closely with UNIX, Database, Network and upstream/downstream teams to resolve issues and improve service quality.
• Support application improvements aimed at increasing the team's ability to provide effective technical support.
• Follow Change Control and Fault Reporting procedures.
• Participate in organization-wide Disaster Recovery (DR) tests and related remediation activities.
• Manage open risks and audit points through to resolution.
• Perform environment risk reviews and identify and report new risks when required.
• Share technical knowledge and provide cross-training to internal teams.

Our requirements

• 5+ years of experience in Technical Support, Application Support, Production Support or a similar role.
• Strong knowledge of UNIX / Linux.
• Hands-on experience with Bash / Shell Scripting.
• Strong knowledge of SQL and databases.
• Good knowledge of at least one programming language, preferably Python.
• Practical experience with IT Service Management, including Incident, Problem and Change Management.
• Experience supporting applications and systems in production environments.
• Strong troubleshooting and analytical skills.
• Very good English, both written and spoken.
• Ability to work independently, prioritize tasks and operate effectively under time pressure.
• Willingness and availability to work the required afternoon/evening hours: 16:00–00:00 CEST / 15:00–23:00 CET.

Optional

• Geneos ITRS
• Airflow
• BMC Control-M
• ELK / Elasticsearch / Kibana
• Kafka
• Zookeeper
• Experience with Disaster Recovery processes and testing.
• Experience with risk management and audit processes.
• Experience in automation and optimization of technical support processes.
• Practical experience using AI tools to improve productivity.
• Previous experience in the banking or financial services industry.

What we offer

• Long-term project – initial Work Order for 12 months, with a possibility of further extension.
• Rate: up to 120 PLN/h
• Equipment provided by the client
• Remote work with the possibility of working from an office in central Warsaw a few times per month
• Two-stage recruitment process
• No live coding task – technical knowledge will be assessed through live technical questions during the interviews.

Benefits

• sharing the costs of sports activities
• private medical care

Recruitment stages

• Screen Call with Recruiter

SQUARE ONE RESOURCES sp. z o.o.

#OneSquareOne - one team, many talents

Square One Poland specializes in IT outsourcing and supporting companies in building and scaling technology teams. We help international organizations access proven IT specialists, carefully matched to project requirements and company culture.

We act as a strategic partner, enabling effective team scaling — from individual experts to complete project teams — based on transparent cooperation and long-term, win–win relationships. For IT professionals, we offer inspiring projects delivered with modern technologies, clear communication, and real opportunities for professional growth.

Operating internationally, we combine years of experience with creativity, agility, and flexibility. Despite our market maturity, we retain a start-up DNA that allows us to respond quickly to changing business needs.

Our organizational culture is confirmed by the Great Place to Work® 2026 certification.

This is how we work