Technical Support Engineer - L2 (QA Exp mandatory)

Luxoft Poland; Poland; On-site; PLN 100,000 - 140,000; Full time

Job summary

Luxoft Poland seeks an experienced L2 Support Engineer to monitor edge systems and central cloud applications, perform diagnostics, and support local and remote operations. You will own L2 tasks including root-cause analysis, end‑to‑end diagnostics, documentation, and occasional manual testing of new features and releases.

The Poland-based role offers stable employment under an employment contract, tax-deductible costs for development work, private medical and dental care, life insurance, and

Qualifications

• At least 4 years of experience in L2 support or similar roles.
• Experience with edge systems and cloud-hosted applications.
• Experience with telemetry, time-series data, and IIoT data pipelines.
• Hands-on knowledge of MQTT, Modbus, or similar industrial protocols.
• Strong Linux troubleshooting and log-analysis skills.
• Experience with SQL, databases, REST APIs, frontend and backend troubleshooting.
• Experience with manual functional and integration testing.
• Strong problem-solving, communication, documentation, and reporting skills.
• Degree or equivalent practical experience in automation, electrical engineering, or related discipline.

Responsibilities

• Fleet monitoring of edge systems and central cloud applications.
• L2 technical support and issue investigation.
• Root-cause analysis using logs, metrics, telemetry, services, databases, APIs, and network connections.
• End-to-end diagnostics tracing telemetry from devices to dashboards and reports.
• Escalation of unresolved problems with logs, reproduction steps, and impact information.
• Documentation of troubleshooting procedures, fleet-health reports, and incident summaries.
• Release validation dedicating approximately 30% of the role to manual testing of new features and releases.

Skills

L2 support

Linux troubleshooting

Telemetry

MQTT/Modbus

SQL/REST

Manual testing

Documentation

Root-cause analysis

Edge/cloud

Communication

Education

Degree in automation or control systems

Tools

REST API testing tools

Job description

Development of monitoring and diagnostics system. It fulfils both local and remote data access and analytics requirement, as well as local and remote troubleshooting purpose.

The work responsibilities contain L2 support + manual testing.

Responsibilities:

• Fleet monitoring: Monitor the health, availability, connectivity, and performance of edge systems and central cloud applications.
• L2 technical support: Investigate issues reported by monitoring systems, sites, customers, or L1 support.
• Root-cause analysis: Analyse logs, metrics, telemetry, services, databases, APIs, and network connections to identify and resolve problems.
• End-to-end diagnostics: Trace telemetry from devices and gateways through edge and cloud services to dashboards and reports.
• Issue escalation: Escalate unresolved problems or software defects to development/L3 with logs, reproduction steps, technical findings, and impact information.
• Documentation and reporting: Maintain support records, troubleshooting procedures, fleet-health reports, and incident summaries.
• Release validation: Dedicate approximately 30% of the role to manual functional, integration, and regression testing of new features and support software releases.

Mandatory Skills Description:

• At least 4 years of experience in L2 support, technical operations, systems integration, industrial software support, or a comparable role.
• Experience with edge systems and cloud-hosted applications.
• Experience with telemetry, time-series data, and IIoT data pipelines.
• Hands-on knowledge of MQTT, Modbus, or similar industrial protocols.
• Strong Linux troubleshooting and log-analysis skills.
• Experience with SQL, databases, REST APIs, frontend and backend troubleshooting.
• Experience with manual functional and integration testing.
• Strong problem-solving, communication, documentation, and reporting skills.
• Degree or equivalent practical experience in automation, electrical engineering, control systems, or a related discipline.

(Opportunity for Poland-based candidates)

• Tax-deductible costs on a contract of employment for all development roles
• Stable employment based on an employment contract
• Private Medical & Dental care & Life Insurance
• MyBenefit program (sports card, well-being program etc.)
• Internal Mobility program - possibility of rotation between projects, locations, accounts