TRILUMIS
Careers at TRILUMIS

Work together on better light.

Interested in lighting, technology and the people behind a project? TRILUMIS brings together advice, planning, product development and customer support.

Published vacancies appear below. If there is no suitable position, you are welcome to send a speculative application describing your experience and the area in which you would like to contribute.

Illustrative collaboration around a luminaire and lighting plan
Collaborate, ask questions and develop solutions · illustration
TRILUMIS / Münster

Open positions

Apprenticeship

2027 apprenticeship: Industrial management assistant (m/f/d)

Stockholmer Str. 8, 48163 Münster · Apprenticeship starting August/September 2027

Your introduction to the commercial side of lighting technology

About the role

Training location: Stockholmer Str. 8, 48163 Münster. Start: 1 August 2027, or 1 September 2027 on request. Duration: usually three years.

TRILUMIS Lichtsysteme GmbH, based in Münster, supplies wholesalers, delivers lighting projects and develops luminaires to customer requirements. We support our customers with lighting design, technical documentation and personal assistance, from the initial enquiry through to smooth order fulfilment. Our aim is to provide suitable solutions and lasting customer satisfaction.

What you will learn

Quotations and orders: Support enquiries from wholesalers and project customers, prepare quotations and accompany orders through to invoicing.

Purchasing and processes: Compare quotations and learn about procurement, production processes, warehousing, logistics and coordinating delivery dates.

Commercial operations: Gain insights into marketing, sales, HR processes, accounting and commercial management.

Organisation and customer service: Maintain data, assemble order documentation and help handle customer enquiries reliably.

How to apply

Send your cover letter, CV and most recent relevant school or graduation certificate to hr@trilumis.de. Please state your preferred apprenticeship start date.

Email subject: Ausbildung Industriekaufleute 2027 Questions: hr@trilumis.de · +49 251 29794720

What you bring

  • You are interested in business and enjoy working with numbers, people and digital tools. You are careful, eager to learn and able to communicate in German well enough to participate at work and vocational school. No prior lighting knowledge is required. Career changers are also welcome.

What we offer

  • Practical training with professional guidance at our Münster headquarters. Depending on eligibility and performance, a shorter training period or early admission to the final examination may be possible following assessment by the responsible Chamber of Industry and Commerce (IHK).
Marketing

Working student: Marketing (m/f/d)

Stockholmer Str. 8, 48163 Münster · Working student / part-time

Help make our lighting solutions visible

About the role

Social media · Catalogues · Brochures · Trade fairs

Workplace: Stockholmer Str. 8, 48163 Münster. Start and part-time hours alongside your studies: by agreement. Working from home is possible after onboarding and by arrangement.

TRILUMIS Lichtsysteme GmbH, based in Münster, supplies wholesalers, delivers lighting projects and develops luminaires to customer requirements. We support our customers with lighting design, technical documentation and personal assistance, from the initial enquiry through to smooth order fulfilment. Our aim is to provide suitable solutions and lasting customer satisfaction.

Your responsibilities

Social media: Develop posts about our luminaires, projects and services; create text, images and short videos; support scheduling and evaluation.

Catalogues and brochures: Prepare product information and project examples for wholesalers and project customers, and assist with layouts, corrections and print preparation.

Trade fair preparation: Help present our luminaires and bespoke developments, prepare materials and support organisation.

Content and documentation: Coordinate text and product information with sales and engineering, and present technical content clearly and attractively.

How to apply

Send your cover letter, CV, possible start date and availability to hr@trilumis.de. You may voluntarily include work samples that you are permitted to share.

Email subject: Werkstudent Marketing Questions: hr@trilumis.de · +49 251 29794720

What you bring

  • You are enrolled at a university, for example in marketing, communication, media, design or business administration. Other subjects with relevant skills are also welcome. You write German confidently, have an eye for design and organise your work reliably. Adobe InDesign skills are welcome but not required. Social media or image-editing experience is helpful.

What we offer

  • Put your own ideas into practice across digital communication, print and trade fairs, and learn to present technical products clearly. We coordinate working hours with your studies. Working from home is possible after onboarding and by arrangement.
Sales

Working student: Sales (m/f/d)

Stockholmer Str. 8, 48163 Münster · Working student / part-time

Help us win new customers

About the role

Customer acquisition · Tenders · Quotations

Workplace: Stockholmer Str. 8, 48163 Münster. Start and part-time hours alongside your studies: by agreement. Working from home is possible after onboarding and by arrangement.

TRILUMIS Lichtsysteme GmbH, based in Münster, supplies wholesalers, delivers lighting projects and develops luminaires to customer requirements. We support our customers with lighting design, technical documentation and personal assistance, from the initial enquiry through to smooth order fulfilment. Our aim is to provide suitable solutions and lasting customer satisfaction.

Your responsibilities

Research prospective customers: Identify potential wholesale and project customers, research contacts and prepare targeted outreach.

Support customer acquisition: After onboarding, contact prospects in coordination with sales, record their needs, arrange appointments and follow up.

Work on tenders: Research projects, review specifications and compile product data, technical documentation and supporting evidence.

Prepare quotations: Support costing and quotation preparation, and keep track of deadlines. Binding approvals remain with the responsible colleagues.

Support customers and projects: Maintain contact details, follow up quotations and coordinate queries and documents with sales and engineering to ensure reliable order handling.

How to apply

Send your cover letter, CV, possible start date and availability to hr@trilumis.de.

Email subject: Werkstudent Vertrieb und Ausschreibungen Questions: hr@trilumis.de · +49 251 29794720

What you bring

  • You are enrolled at a university, for example in business administration, industrial engineering or a technical subject. Other subjects with a relevant interest are welcome. You enjoy approaching people, want to win new customers and work carefully. Your German enables customer conversations and understanding tender documents. Sales experience is helpful but not required.

What we offer

  • Learn active customer acquisition, quotation handling and customer service in wholesale and project business, supported by knowledgeable colleagues. We coordinate working hours with your studies; working from home is possible after onboarding and by arrangement.
Sales

Field sales representative (m/f/d)

Sales territory by agreement · Employment / working hours by agreement

Win customers. Develop business. Make a difference.

About the role

Customer acquisition · Wholesale · Project business

Employment relationship. Start, sales territory and working hours: by agreement; part-time preferences are welcome.

TRILUMIS Lichtsysteme GmbH, based in Münster, supplies wholesalers, delivers lighting projects and develops luminaires to customer requirements. We support our customers with lighting design, technical documentation and personal assistance, from the initial enquiry through to smooth order fulfilment. Our aim is to provide suitable solutions and lasting customer satisfaction.

Your responsibilities

Actively win new customers: Identify potential wholesale and project customers, approach them specifically and develop contacts through to orders.

Develop existing accounts: Maintain business relationships, identify additional needs and win repeat orders with a focus on long-term customer satisfaction.

Understand needs and advise: Present our luminaires, capture bespoke development requests and clarify requirements with engineering.

Close sales: Coordinate quotations, follow up consistently and negotiate within your authority. Pursue sales targets independently.

Support delivery of projects: Coordinate lighting design, technical documentation and outstanding customer questions with the team, ensuring clear handovers and reliable communication.

How to apply

Send your cover letter, CV and possible start date to hr@trilumis.de. You are welcome to state your preferred sales territory, working hours and examples of your sales achievements.

Email subject: Vertrieb im Außendienst Questions: hr@trilumis.de · +49 251 29794720

What you bring

  • You have experience in B2B sales and new customer acquisition. You are target-oriented, follow through with customers and want measurable sales results. You have a commercial or technical qualification, or comparable experience. Industry and wholesale knowledge are advantageous. Your German enables advice and negotiations; customer appointments and business travel form part of the role.

What we offer

  • An attractive, performance-based commission scheme with no cap. Take responsibility for customer acquisition and account development, supported by our team with lighting design, technical documentation and project coordination.
Commercial representation

Independent commercial agent (m/f/d)

Contract territory by agreement · Self-employed under section 84 HGB / not employment

Win customers with performance that pays off.

About the role

Wholesale · Project business · Bespoke luminaires

Contract territory and start: by agreement. Independent commercial representation under section 84 of the German Commercial Code (HGB); this is not an employment relationship.

TRILUMIS Lichtsysteme GmbH, based in Münster, supplies wholesalers, delivers lighting projects and develops luminaires to customer requirements. We support our customers with lighting design, technical documentation and personal assistance, from the initial enquiry through to smooth order fulfilment. Our aim is to provide suitable solutions and lasting customer satisfaction.

Your responsibilities

Win new customers: Approach wholesale and project customers, develop new business relationships and broker orders for our luminaires and bespoke developments.

Grow the business: Look after your customers, identify opportunities and win repeat orders, focusing on lasting customer relationships and sales success.

Support projects: Record customer needs, coordinate quotations and requirements with TRILUMIS, and involve lighting design, technical documentation and other support as needed.

Develop market opportunities: Open up business opportunities in your territory and exchange information with us about customer needs, projects and agreed next steps.

How to get in touch

Send a short profile of your commercial agency or proposed business to hr@trilumis.de. State your preferred territory, industry experience and customer groups. Please do not send confidential customer lists at this stage.

Email subject: Handelsvertretung – gewünschte Region Contact: hr@trilumis.de · +49 251 29794720

What you bring

  • You run an independent commercial agency or plan to establish a corresponding business. You have experience selling products that require explanation, actively acquire new customers and want to grow your business. Knowledge of lighting, electrical or building technology and a wholesale or project-business network are advantageous. You work with entrepreneurial independence and communicate reliably.

What we offer

  • An attractive, performance-based commission scheme with no cap. You largely organise your activities and working hours freely. We support you with product information, lighting design, technical documentation and project coordination. Territory, customer and project allocation, commission rules and other rights and obligations are agreed in the commercial agency contract.
Speculative application / Open positions

Your application

Tell us about your experience and interests. Your details and PDFs are stored directly in our protected application system.

How we handle your application data

Controller: TRILUMIS Lichtsysteme GmbH, Stockholmer Str. 8, 48163 Muenster, Germany. Contact: info@trilumis.de.

We use your contact details, message and documents to assess your application and communicate with you about the recruitment process. Processing is for deciding whether to establish an employment relationship under section 26(1) BDSG. Providing the requested details is voluntary, but we need your name, email and application documents to process an online application.

Your submission and PDFs are stored in our application database and are accessible only to authorised administrators. They are not published or used for marketing. No automated hiring decision is made by this form.

After the application is closed, the portal schedules deletion of your data and documents after six months. The responsible administrator can adjust the retention date where necessary. Contact us to request earlier withdrawal or deletion; applicable legal requirements may affect the request.

You can request information, correction, deletion or restriction of processing and exercise other applicable data-protection rights. You may complain to a data-protection supervisory authority, including the Landesbeauftragte für Datenschutz und Informationsfreiheit Nordrhein-Westfalen.

Notice version: 2026-09-25