Rostislav Kotok
Senior Technical Specialist, Mechanic
Thessaloniki
Summary
I am a multidisciplinary technical specialist with hands-on experience in mechanical systems, precision repair, and custom fabrication across the automotive, motorcycle, bicycle, and watercraft industries. My background includes full-cycle wheel restoration, TIG/MIG welding, carbon fiber work, detailing, and high-level bicycle mechanics, including suspension tuning and electronic drivetrain calibration.
In addition to technical execution, I’ve been responsible for designing workshop equipment, optimizing material storage systems, and mentoring junior staff. I am highly adaptable, self-motivated, and committed to continuous improvement—equally effective working independently or as part of a team. My approach combines practical efficiency with attention to detail and a strong focus on customer needs and performance-driven outcomes.
Overview
7
7
years of professional experience
Work History
Senior Technical Process Specialist
Head of Technical Operations
10.2024 - Current
- Mentored junior team members in best practices for process optimization, fostering a culture of continuous improvement.
- Enhanced overall system performance through troubleshooting, root cause analysis, and resolution of complex issues.
- Led full-cycle restoration of alloy wheels, including diamond cutting, straightening, and refinishing to factory standards.
- Oversaw preparation and painting of motorcycle and automotive parts, ensuring high-quality surface treatment.
- Operated precision machinery such as diamond lathes and straightening equipment.
- Performed TIG and MIG welding for structural and aesthetic repair work.
- Managed vehicle preparation for detailing, including disassembly and reassembly of interior, electronics, and body panels.
- Customized and serviced engines of personal watercraft (jet skis) and motorcycles.
- Worked with carbon fiber and other advanced materials for high-performance applications.
- Designed and built custom workshop equipment to optimize workspace functionality and technician workflow.
- Designed material storage zones for maximum efficiency, accessibility, and safety in the workshop environment.
- Supervised a multidisciplinary team and coordinated complex technical workflows across multiple departments.
Bicycle Mechanic
Bike Mechanic, Veloplaneta' , the Largest Chain of Bike Shops and Workshops All Over Ukraine
01.2023 - 12.2023
- Assembled high-end bicycles (Cannondale, Marin, BMC, GT, Scott, Bianchi, Merida, Pardus, Aventon) in full compliance with manufacturer specifications and quality control standards.
- Serviced and maintained bicycles according to workshop protocols and pricing lists, covering a wide range of repairs and adjustments (excluding Lefty shock systems).
- Calibrated and repaired electronic shifting systems (Shimano Di2, SRAM AXS) for optimal drivetrain performance.
- Rebuilt and tuned various suspension systems (Fox, RockShox), ensuring smooth operation and rider-specific responsiveness.
- Used bench grinders and hand tools to shape, replace, or modify components for precision fitting and performance.
- Cleaned, lubricated, and aligned mechanical systems to factory-level standards during both maintenance and new builds.
- Provided expert guidance to clients regarding component selection, repair strategies, and ergonomic customization based on rider anatomy and preferences.
- Delivered accurate repair estimates and timeframes, managing customer expectations and building trust.
- Customized bikes by fitting saddles, stems, handlebars, crank lengths, and other components to optimize rider comfort and biomechanics.
- Mentored junior mechanics in advanced repair techniques and best practices, maintaining high workshop standards.
- Maintained a clean, organized, and safe working environment in collaboration with team members.
- Continuously expanded technical knowledge of diverse bike models, components, and industry trends to better serve clients.
- Prioritized safety, precision, and efficiency in all repairs, assemblies, and customer interactions.
Senior Bike Mechanic
Senior Bike Mechanic, Bike Shop 'Wild Zahid', Mukachevo, Transcarpathian Region, Ukraine
03.2022 - 08.2022
- Assisted clients in selecting bicycles, components, and equipment tailored to their specific riding goals, preferences, and ergonomic needs.
- Ordered, replaced, and installed components to maintain and upgrade bikes, ensuring long-term reliability and performance.
- Provided hands-on instruction and advice on bicycle maintenance, safety practices, and proper usage.
- Shaped and modified replacement parts using bench grinders and precision tools to achieve optimal fit and function.
- Designed and developed custom suspension tuning solutions to improve ride dynamics and meet performance targets.
- Created and prototyped alternative tuning configurations based on rider feedback and technical specifications.
- Closely collaborated with engineers and precision machinists in Ukraine to manufacture and test high-performance suspension components.
- Continuously expanded professional knowledge of industry trends, tools, and technologies to deliver cutting-edge solutions and services.
Member of a Cycling Team
Member of a Cycling Team, Sport Centre Dynamo (Part-Time)
09.2018 - 11.2021
- Performed routine bicycle maintenance tasks, including tire replacement, brake adjustments, and basic mechanical inspections to ensure rider safety and optimal function.
- Demonstrated a strong ability to learn quickly and apply new technical skills in dynamic workshop environments.
- Adapted efficiently to changing tasks, priorities, and tools while maintaining a high level of accuracy and professionalism.
- Collaborated effectively within team settings, providing support to colleagues and contributing to shared project goals.
- Successfully worked independently when required, taking initiative and responsibility for task completion without supervision.
- Maintained focus and productivity under pressure, meeting tight deadlines in fast-paced service conditions.
- Displayed a passion for continuous learning and self-improvement, staying engaged with evolving industry practices and tools.
- Contributed to team-based repair and service projects, reinforcing cooperative problem-solving and knowledge sharing.
Education
Incomplete Higher Education in Architecture -
Kharkiv College of Construction, Architecture And Design
Kharkiv, Ukraine 04.2001 -
Courses On Pumping Fork Cartridges And Shock Absor
Sly_fox1988
Kyiv, Ukraine01-2024
Carbon Fibre Composites Training Course
Viktorbelogaj
Mukachevo, Transcarpathian Region, Ukraine01-2024
Skills
Multi-platform mechanical repair (bicycles, motorcycles, automotive, watercraft)
TIG & MIG welding (repair of structural and aesthetic metal components)
Precision machining & diamond cutting (wheel restoration, part shaping)
Suspension servicing & tuning (Fox, RockShox; custom architecture prototyping)
Electronic drivetrain calibration (Shimano Di2, SRAM AXS)
Carbon fiber & composite material work (cutting, forming, bonding)
Bodywork preparation & painting (cars, motorcycles, custom parts)
Interior disassembly/reassembly (electronics, upholstery, dashboard systems)
Custom engine servicing (motorcycles, jet skis)
Tool and equipment design (for workshop optimization)
Workshop layout and material storage planning
Basic electrical diagnostics and replacement (automotive/moto)
Technical troubleshooting & root cause analysis
Process optimization & workflow improvement
Prototyping and custom solution development
Fast learning and applying new technologies/tools
Creative adaptation under non-standard conditions
Team collaboration & support
Mentoring junior staff and apprentices
Customer consultation & service
Time management under pressure
Self-motivation and accountability
Clear technical communication
Work ethic & task ownership
Adaptability in fast-paced environments
Timeline
Senior Technical Process Specialist
Head of Technical Operations
10.2024 - Current
Bicycle Mechanic
Bike Mechanic, Veloplaneta' , the Largest Chain of Bike Shops and Workshops All Over Ukraine
01.2023 - 12.2023
Senior Bike Mechanic
Senior Bike Mechanic, Bike Shop 'Wild Zahid', Mukachevo, Transcarpathian Region, Ukraine
03.2022 - 08.2022
Member of a Cycling Team
Member of a Cycling Team, Sport Centre Dynamo (Part-Time)
09.2018 - 11.2021
Incomplete Higher Education in Architecture -
Kharkiv College of Construction, Architecture And Design
04.2001 -
Courses On Pumping Fork Cartridges And Shock Absor
Sly_fox1988
Carbon Fibre Composites Training Course
Viktorbelogaj
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