Marko Rajic
Marko Rajic

Senior QA Automation Engineer

Actively looking · Member since 2 Sep 2026
Message
Location
Belgrade, Serbia
Desired salary
2 USD/yearly
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior QA Automation Engineer with more than 10 years of engineering experience, specializing in end-to-end web UI and API test automation for complex enterprise software.

I currently lead test automation for Schneider Electric Digital Twin solutions. I design scalable Python and Playwright test frameworks, validate REST APIs, and support continuous testing through containerized CI/CD pipelines.

I have hands-on experience with database verification, data integrity testing, performance-oriented validation, defect management, and the full QA lifecycle in Agile teams. I collaborate closely with developers and stakeholders to create test plans, identify defects, and improve software reliability.

Before moving into software quality assurance, I built extensive experience in mechanical design, process engineering, and automotive manufacturing. This background gives me a strong understanding of industrial systems, product development, manufacturing processes, and validation methodologies.

I have led technical initiatives involving continuous improvement, prototype testing, process optimization, production-line automation, risk analysis, and engineering documentation. I bring a detail-oriented, systems-focused approach to validating complex software and physical engineering solutions.

Skills

25 capabilities

Tech stack & tools

Working toolkit

Application Utilities

Collaboration

Data Stores

Development

Languages & Frameworks

Experience

Career history

Senior QA Automation Engineer Avisto Eastern Europe

I automate end-to-end UI and API test suites for Schneider Electric Digital Twin and web-based simulation platforms. I design and maintain scalable Python and Playwright automation frameworks for complex web and desktop simulation workflows.

I execute REST API tests with Python and Postman, validating service communication, HTTP status codes, and JSON payloads. I integrate automated tests into Docker-based CI/CD pipelines and conduct MySQL database testing to verify persistence and state consistency.

I lead test execution, create structured test plans, manage defects in Jira, and collaborate with developers and project stakeholders. I also mock external interfaces and communication protocols to validate edge cases, system reliability, and high-throughput data flows.

Senior CAD Design Engineer Bosch

Designed and developed new products and improved existing designs using Autodesk Inventor and SolidWorks, with attention to functionality, manufacturability, cost efficiency, and relevant safety standards.

Provided technical guidance to production teams, supported prototype development and validation, and managed engineering drawings, documentation, and revision control through Autodesk Vault.

Applied mechanical engineering principles, FMEA, finite element analysis, and testing methodologies to assess component performance, resolve design issues, and implement improvements.

Process Engineer Bosch

Optimized wiper-system assembly lines through line balancing, continuous improvement, specialized tooling design, and automated machinery development. Maintained cycle times for wiper motors and linkages while reducing waste and improving throughput.

Managed automated tightening systems, torque monitoring, critical-joint integrity, and assembly-defect analysis. Led adaptation and validation of a blister packaging line to support production scaling.

Managed engineering change requests, line-layout changes, PFMEAs, control plans, standard operating instructions, and root-cause investigations using 8D methods. Conducted Cm/Cmk and Cp/Cpk studies for critical screwing and pressing stations.

Tightening Specialist in Assembly Shop FIAT Automobili Srbija

Specialized in tightening systems, process optimization, assembly tooling, and high-precision automotive manufacturing. Configured electric and Wi-Fi smart screwdrivers to control critical torque, angle, and speed parameters.

Monitored tightening curves and fastening data to ensure traceability and joint integrity across safety-critical assembly operations. Audited production processes, identified anomalies, and implemented corrective actions to improve quality and efficiency.

Created operation sheets and standard operating procedures, designed custom tools, jigs, fixtures, and machinery, and managed the technical evaluation and procurement of manual and power tools for the assembly shop.

Team Leader FIAT Automobili Srbija

Led and organized assembly operators in the automotive powertrain preparation zone, including engine and gearbox sub-assembly operations. Managed daily staffing, assignments, and operator rotations to maintain balanced workloads.

Applied 5S workplace-organization practices, monitored quality and production KPIs, and ensured adherence to safety, cycle-time, and automotive quality requirements.

Resolved shift-level issues involving tooling malfunctions, material shortages, and production bottlenecks while supporting team performance and continuous improvement.

Education

Learning history

Technical University of Belgrade, Faculty of Mechanical Engineering

Master of Engineering (MEng), Termotechnical Engineering

Master of Engineering studies in Termotechnical Engineering.

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