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Sergey Golinskiy

Lead Mechanical Engineer from Kyiv, Ukraine.

I design custom machinery and automated assembly lines.

I connect product design with manufacturing automation.

About Information
About Information

Hello!
My name is Sergey. I am a Lead Mechanical Engineer from Kyiv, Ukraine, with mechanical design experience since 2012 and a hands-on background in CNC machining.

I specialize in custom machinery, automated assembly lines and production equipment: machine concepts, mechanical assemblies, fixtures and tooling, designed around manufacturability, reliable operation and maintenance.

A key part of my work is connecting product design with manufacturing automation: defining requirements for robotic handling, component positioning and fastening, so that products can be assembled consistently and efficiently.

LinkedIn: sergey-golinskiy

  • Age: 35
  • Residence: Ukraine
  • Freelance: Available
  • Address: Kyiv, Ukraine
  • Telegram: @nC8fI7bqZ3
  • E-mail: sngolinskiy@gmail.com
Experience
2026 - present
Lead Mechanical Engineer - Ajax Systems - Kyiv, Ukraine

Tech lead for mechanical engineering initiatives focused on manufacturing automation, connecting product design requirements with the practical needs of automated assembly.

  • Define design requirements that enable reliable robotic handling, positioning, fastening and assembly.
  • Work across R&D and Automation teams to identify assembly challenges and translate them into product design improvements.
  • Develop engineering standards for automated manufacturing: fastening interfaces, component alignment, retention and tooling access.
  • Drive standardization across products to simplify automation equipment and reduce the need for manual adjustments.
  • Provide technical direction for equipment concepts and mechanical design decisions, with a focus on manufacturability, repeatability and maintainability.
2025 - present
Co-Founder - Craftyr - Kyiv, Ukraine

Building Craftyr, a cloud platform that gives small manufacturers the software of a large factory without an IT department. Two products on one core.

  • Forge: 3D printer farms run from a single screen - Bambu Lab, Klipper and OctoPrint, print queue, cameras, automated defect detection, licensing and a secure channel to the customer site.
  • Yarus: production management for small factories and workshops - orders, planning, work centres and shifts, inventory, costing and reporting in one loop.
  • Designed and lead the shared platform: a multi-tenant hub, automated provisioning of isolated instances, billing, signed releases with over-the-air updates and Go agents at customer sites.
  • Stack: Python/FastAPI, React/TypeScript, Go, Kubernetes.

The service is in alpha testing with its first manufacturers; Forge already runs real farms of dozens of printers.

2024 - 2026
Senior Mechanical Engineer | Mentor - Ajax Systems - Ukraine

Developed mechanical solutions for automated assembly lines, translating manufacturing requirements into equipment concepts, machine layouts and detailed designs.

  • Defined the mechanical concept and architecture of automated production lines.
  • Designed assembly stations, auxiliary equipment, fixtures and tooling for electronics manufacturing.
  • Addressed component positioning, handling and fastening requirements within automated processes.
  • Collaborated with engineering teams to align equipment design with product geometry and assembly sequences.
  • Mentored mechanical engineers, helping them strengthen design reasoning and develop practical automation solutions.
2022 - 2024
Special Equipment Mechanical Engineer - Ajax Systems - Kyiv, Ukraine

Designed dedicated equipment for testing electronic components and supported the development of consistent engineering practices across distributed teams.

  • Developed mechanical designs for specialized test equipment and supporting fixtures.
  • Standardized design methods to improve consistency and reuse across engineering projects.
  • Deployed and configured a SOLIDWORKS PDM server for distributed engineering teams.
  • Established a shared environment for managing CAD files and engineering documentation, supporting structured collaboration and version control.
2021 - 2022
Head of Production Automation Department - NIK - Vyshhorod, Ukraine

Led the production automation department, combining engineering team management with the development of custom equipment and automated processes for electricity meter manufacturing.

  • Directed the development of automated production lines and dedicated equipment for meter components.
  • Oversaw the design of machinery for machining copper and brass parts.
  • Developed multi-axis robotic equipment for servicing injection molding machines.
  • Supervised automation and control system designers, coordinating work across mechanical and control disciplines.
  • Organized machining and assembly sections to support equipment manufacturing and integration.
Jan 2022 - Oct 2022
Senior Mechanical Engineer - Apis Cor - Florida, USA

Development and design of a new version of a robot for 3D printing houses with concrete.

  • Selection and design of robot components.
  • Selection of actuators and design of transmissions.
  • Design of carbon fiber parts obtained by pultrusion.
2020 - 2021
Senior Mechanical Engineer - NIK - Vyshhorod, Ukraine

Developed custom machinery for automated component manufacturing, with a focus on integrating machining operations and parallel processing.

  • Designed a multi-axis milling and drilling machine for brass components.
  • Developed a three-line processing configuration with an output of 3 parts every 6 seconds.
  • Translated production requirements into a mechanical solution combining multiple machining operations within one machine.
2018 - 2020
Senior Mechanical Design Engineer - S7 Inc. - Toronto, Canada

Designed custom industrial machinery and mechanical systems across waste processing, metalworking, construction equipment and industrial infrastructure.

  • Developed mechanical designs for a household waste shredder, rebar bending and cutting machines, and a concrete pump.
  • Designed CNC machine components and hydraulic pressing equipment.
  • Developed steel structures for production and storage facilities, including industrial stairways.
  • Applied mechanical design expertise across projects involving different materials, operating conditions and manufacturing requirements.
2017 - 2018
Head of Engineering Team - NANOCUT S.R.L. - Chișinău, Moldova

Led engineering coordination across three remote design bureaus and manufacturing technologists, connecting design planning with fabrication, installation and commissioning.

  • Allocated engineering tasks, planned design activities and monitored delivery.
  • Coordinated technical work across distributed teams and manufacturing specialists.
  • Conducted design and construction reviews to resolve technical issues and align project execution.
  • Managed industrial premises construction activities and participated in commissioning.
2015 - 2017
Mechanical Engineer - NANOCUT S.R.L. - Chișinău, Moldova

Designed mechanical assemblies, machinery and production lines, supporting development through detailed engineering documentation.

  • Developed mechanisms, machine assemblies and production equipment.
  • Designed hydraulic and pneumatic systems as part of integrated machine solutions.
  • Prepared manufacturing drawings and technical documentation for fabrication and assembly.
  • Used SOLIDWORKS, KOMPAS-3D and AutoCAD for mechanical design and drafting.
2012 - 2015
Mechanical Engineer - SNPO Frunze - Sumy, Ukraine

Developed mechanical engineering experience in an industrial manufacturing environment, building on earlier hands-on work as a CNC machine operator.

Brought a practical understanding of machining and shop-floor processes to mechanical engineering work.

2010 - 2012
CNC Machine Operator - SNPO Frunze - Sumy, Ukraine

Operated CNC equipment in an industrial manufacturing environment, gaining hands-on experience in machining and component production.

Built the practical manufacturing foundation that later informed my work in mechanical design and production automation.

Education
2010 - 2014
Sumy State University - Sumy, Ukraine

Engineering Technology

2006 - 2010
College of Engineering, Sumy State University - Sumy, Ukraine

Specialist. Process Engineer. Processing of materials on machines and automatic lines

Courses, trainings
2021
Notation BPMN 2.0 (Kyiv)

BPMN (Business Process Management Notation) is a business process modeling language that is available
an intermediate link between formalization / visualization and implementation of the business process.
Simply put, such a notation is a description of the graphic elements used for construction of the scheme of business process.
At a minimum, such a scheme is needed to build a business process according to it and it is clear
regulate it for all participants.

2021
Project Management 2.0 (Kyiv)

Project management practice

Languages Skills

  • Ukrainian
    100%
  • English
    35%
  • Russian
    100%