Careers: Find Your Dream Job
"Our success is the result of an outstanding team effort and a product and service portfolio that is perfectly tailored to market needs. We are a strong team, and only with a strong team can we sustain our dynamic growth and secure jobs for the long term. That is why, for me, our employees are just as important as our customers!"
(Wolfgang Oehm, company founder and managing partner)
On-the-Job Training
Unlike at almost any other company, our trainees have the opportunity to acquire qualifications beyond the standard scope of training, enabling them to start their future careers with the best possible foundation.
Duration of training
- 3 ½ years
- May be shortened depending on qualifications and performance
Locations
- Gummersbach-Dieringhausen Vocational College (block instruction)
- In-house or at customer sites
Training requirements
- Minimum age of 16 and at least a high school diploma
- Interest in electronics and automation
- Manual dexterity and good technical understanding
- Solid math skills
- Manual dexterity (laying cables in hard-to-reach places)
- Drawing skills (e.g., creating circuit diagrams and PCB layouts)
- Ability to work in a team and meticulous work ethic
- Willingness to travel
Training Content
- Assembly and installation of cable management systems, information, utility, and power lines
- Assembly and wiring of switchgear and automation systems
- Programming and configuring systems
- Monitoring and maintenance of systems
- Maintenance and repairs
Duration of training
- 3 years
Locations
- Bergisches Berufskolleg Wipperfürth (block instruction)
- In-house
Training requirements
- At least a good technical college entrance qualification (Höhere Handelsschule) or high school diploma
- Interest in commercial tasks and business processes
- Enjoyment of administrative and organizational tasks
- Enjoy working with people and numbers
- Good computer skills (Microsoft Word/Excel)
- Solid math skills (rule of three, percentage calculations, interest calculations)
- Clear, articulate expression, strong spelling skills, and good reading comprehension
- Flexibility, quick comprehension, and a strong willingness to learn
Training content
- Purchasing: Requesting quotes, creating bid comparisons, placing orders
- Accounting: Reviewing supplier invoices
- Accounting: Issuing invoices to our customers
- Sales: Insight into preparing quotes and calculations
Duration of training
- 3 ½ years
- May be shortened with appropriate qualifications and performance
Locations
- Bertolt Brecht Vocational College, Duisburg (block instruction)
- In-house or at customer sites
Training requirements
- Minimum age of 16 and at least a high school diploma
- Interest in technology, manual dexterity, and a good understanding of technical matters
- Solid math skills
- Good communication skills (including for customer service)
- Ability to work in a team and a meticulous work ethic
- Willingness to travel
Training Content
- Installation of refrigeration and air conditioning systems, as well as electronic and electrical components
- Planning, calculation, maintenance, and repair of refrigeration and HVAC systems
- Measurement, control, and regulation technology
Duration of training
- 3 ½ years
Training locations
- Cologne Porz Vocational College
- In-house training and occasional assignments at client sites
Training requirements
- At least a good secondary school diploma
- Good technical understanding and drawing skills
- Abstract, logical thinking and good spatial awareness
- Ability to work in a team, as well as a meticulous and systematic approach to work
Training content
- Preparing technical drawings, sketches, plans, and schematic representations
- Performing detailed design work and calculations
- Preparing perspective views and accompanying technical documentation
- Drawing functional and circuit diagrams for hydraulic systems
- Working with 2D and 3D CAD systems (Computer-Aided Design)
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Duration of the program
- 4 ½ years (9 semesters)
Locations
- Technology Arts Sciences, TH Köln
- Inter-company training, IKKE Duisburg
- In-house or at customer sites
Training requirements
- At least a good technical college entrance qualification or high school diploma
- Technical aptitude
- Drawing skills
- Abstract, logical thinking
- Spatial awareness
- Hand-eye coordination (e.g., creating technical documents on a computer)
- Ability to work carefully and independently, and teamwork skills
- Focused, precise work style
Training content
- Installation of refrigeration and air conditioning systems, as well as electronic and electrical components
- Planning, calculation, maintenance, and repair of refrigeration and HVAC systems
- Measurement, control, and regulation technology
Job Openings
We offer above-average pay, a pleasant work environment, and excellent benefits. We are looking for dedicated employees who are ready to take on new challenges, seize opportunities, and work as part of a dynamic team.
Your responsibilities:
- Assembly and wiring of mechanical and hydraulic assemblies
You bring:
- Completed vocational training in the fields of heating, plumbing, refrigeration, air conditioning, and ventilation
- Professional experience in plant engineering, construction site management, and commissioning of plant systems
- Ability to work in a team and strong communication skills
- Basic knowledge of English is a plus
- Class B driver’s license
- Willingness to travel frequently (primarily within Germany/Europe, but also worldwide)
We offer you:
- An interesting and varied role with plenty of creative freedom
- A collegial and employee-oriented work environment with short decision-making processes
- A secure and modern workplace in an internationally recognized company
- A permanent employment contract
- Above-average compensation
- Vacation and Christmas bonuses
- 30 days of vacation
- Bike leasing through JobRad
Your responsibilities:
- Installation and piping work in the required plant areas of ONI-Technik, including the corresponding mounting and fastening structures
- Technical supervision of the on-site installation team, as well as coordination of the construction site
- Assignment of tasks to the installers on the construction sites
- Point of contact for customers and ONI planning departments regarding all matters related to ongoing construction site operations
- Timely execution of all required and contractually agreed installation activities during construction site operations
- Ensuring and monitoring workplace safety (training of installers)
- Procurement of necessary materials (e.g., pipes, fittings, flanges, filters, etc.)
- Coordination of the relevant ONI trades as well as contracted external firms on-site
You bring the following:
- Completed vocational training in the fields of plumbing, heating, HVAC, refrigeration, and ventilation
- Class B driver’s license
- Basic knowledge of English is a plus
- Responsible and independent work ethic
- Willingness to travel frequently (primarily within Germany/Europe, but also worldwide)
We offer you:
- An interesting and varied range of responsibilities with plenty of creative freedom
- A collegial and employee-oriented work environment with short decision-making processes
- A secure and modern workplace in an internationally recognized company
- A permanent employment contract
- Compensation above the standard rate
- Vacation and Christmas bonuses
- 30 days of vacation
- Bike leasing through JobRad
Your responsibilities:
- Commissioning of modular cooling systems, technical control centers, and electrical switchgear
- Performing maintenance and service work on refrigeration and cooling systems, as well as on HVAC systems and chillers
- Programming of measurement, control, and regulation equipment
- Preparation of handover, measurement, and functional reports
You bring:
- Completed vocational training (as an electronics technician for automation technology or industrial engineering, or as a mechatronics technician for refrigeration technology)
- Further training as an electrical engineering technician
- Experience in the fields of refrigeration technology, electrical engineering, and/or control engineering is desirable (Siemens S7, TIA Portal)
- User knowledge of measurement, control, and regulation technology is desirable
- Class B driver’s license
- Basic knowledge of English; knowledge of other foreign languages is an advantage
- Willingness to travel frequently (primarily within Germany/Europe, but also worldwide)
We offer you:
- An interesting and varied role with plenty of creative freedom
- A collegial and employee-oriented work environment with short decision-making processes
- A secure and modern workplace in an internationally recognized company
- A permanent employment contract
- Competitive compensation and a field service bonus
- Vacation and Christmas bonuses
- Bike leasing through JobRad
Your responsibilities:
- Assembly and installation of the above-mentioned systems (as agreed)
- Maintenance and repair work on refrigeration, air conditioning, heat recovery, ventilation, and cooling systems
- Maintenance activities in the areas of chilled water, cooling water, and water treatment
- Work as a service technician in Germany and, if desired, in Europe or worldwide.
- In-house work at the main plant in Lindlar
- Customer consulting regarding the implementation of technical systems and the optimization of existing systems
- Supporting in-house training by instructing trainees in service and repair tasks
You bring:
- Completed vocational training as a mechatronics technician for refrigeration technology or a comparable qualification, for example in working with PLCs, ventilation, or hydraulic systems
- Experience in the maintenance and servicing of refrigeration systems is a plus but not a requirement
- Practical knowledge of measurement, control, and regulation technology is a plus but not a requirement
- Further training as a master craftsman or technician is advantageous
- Class B driver’s license
- Basic knowledge of English is required; additional foreign languages are a plus but not a requirement
- Responsible and independent work ethic
- Willingness to travel (primarily within Germany and, upon request, throughout Europe or even worldwide)
We offer you:
- An interesting and varied range of responsibilities with plenty of creative freedom
- A collegial and employee-oriented work environment with short decision-making processes
- A secure and modern workplace in an internationally recognized company
- A permanent employment contract and 30 days of vacation
- Above-average compensation, as well as vacation and Christmas bonuses,
- Bike leasing through JobRad
- A fully equipped service vehicle with modern tools
- Company cell phone and laptop
- In-house training and career advancement opportunities, e.g.,
- Siemens PLC technology
- Ventilation technology, fire protection, hygiene
- Various manufacturer training courses, e.g., Trane, Mitsubishi
- If you live in a remote area, you may be able to start work from your home
Your responsibilities:
- Installation and piping work in the required plant areas of ONI-Technik, including the corresponding mounting and fastening structures
You bring:
- Completed vocational training in the fields of heating, plumbing, refrigeration, air conditioning, and ventilation
- Ability to work in a team and strong communication skills
- Basic knowledge of English is a plus
- Class B driver’s license
- Willingness to travel extensively (primarily within Germany/Europe, but also worldwide)
We offer you:
- An interesting and varied role with plenty of creative freedom
- A collegial and employee-oriented work environment with short decision-making processes
- A secure and modern workplace in an internationally recognized company
- A permanent employment contract
- Above-average compensation
- Vacation and Christmas bonuses
- 30 days of vacation
- Bike leasing through JobRad
Your responsibilities:
- Work as a service technician in Germany and, if desired, in Europe or worldwide.
- Maintenance and repair work on refrigeration, air conditioning, heat recovery, ventilation, and cooling systems
- Customer consultation regarding the implementation of technical systems and the optimization of existing systems
- Maintenance activities in the areas of refrigeration, chilled water, and water treatment
- Supporting in-house training by instructing trainees in service and repair tasks
You bring:
- Completed vocational training in refrigeration engineering or a comparable qualification, for example in working with PLCs, ventilation, or hydraulic systems
- Experience in the maintenance and repair of refrigeration systems is a plus but not a requirement
- Practical knowledge of measurement, control, and regulation technology is a plus but not a requirement
- Class B driver’s license
- Basic knowledge of English is required; additional foreign languages are a plus but not a requirement
- Responsible and independent work ethic
- Willingness to travel (primarily within Germany and, if desired, throughout Europe or even worldwide)
We offer you:
- An interesting and varied range of responsibilities with plenty of creative freedom
- A collegial and employee-oriented work environment with short decision-making processes
- A secure and modern workplace in an internationally recognized company
- A permanent employment contract
- Above-average compensation
- Vacation and Christmas bonuses
- 30 days of vacation
- Bike leasing through JobRad
Your responsibilities:
- You will be responsible for the assembly or disassembly of cooling, heat recovery, and ventilation systems, as well as the installation of ONI components and technical containers, including piping work (PE, VA, PVC, steel, copper) at our customers’ sites.
- You will lead and supervise small teams (including subcontractors) and actively participate in the work.
- You will ensure that the defined scope of work is carried out in accordance with time and quality specifications.
- You are responsible for compliance with all health and safety regulations.
- You will serve as the point of contact for our customers on-site.
You bring the following:
- You have several years of practical on-site experience as a team leader/senior installer, ideally in the fields of refrigeration, heat recovery, and ventilation system installation.
- You have completed vocational training in the following fields: heating, plumbing, ventilation, metal fabrication, industrial mechanics, steel/PE welding, locksmithing, plumbing, pipe and support installation, and possess excellent manual dexterity.
- You hold a driver’s license and are willing to travel frequently (daily or weekly, both domestically and internationally).
- You are characterized by a strong commitment, team spirit, flexibility, and attention to detail, as well as good written and spoken English skills.
- Ideally, you have business acumen and experience with MS Office programs.
We offer you:
- A generalist, varied, and interesting management role in a collaborative team and a technically stimulating, modern environment
- Support for personal professional development, such as master craftsman or technician certifications
- Thorough onboarding and internal training
- A permanent employment contract in a forward-thinking company with flat hierarchies and short lines of communication
- An attractive total compensation package with above-average pay, a 13th month’s salary, capital-forming benefits, 30 days of annual leave, and JobRad
with professional experience in plant and mechanical engineering for technical products that require detailed explanation. Managing existing accounts and acquiring new customers.
We offer you:
- An interesting and varied range of responsibilities with plenty of creative freedom
- A collegial and employee-oriented work environment with short decision-making processes
- A secure and modern workplace in an internationally recognized company
- A permanent employment contract
- Competitive compensation
- Vacation and Christmas bonuses
- 30 days of vacation
- Bike leasing through JobRad
Start building your future today!
If this sounds like the right opportunity for you, please send us your application materials, your earliest possible start date, and your salary expectations, preferably by email to bewerbung@oni.de with attachments in PDF format only!
We look forward to receiving your application!
