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career

Support for our team

The IOZK is a center specializing in translational medicine. Our focus is on the rapid implementation of findings from basic immunological research for the treatment of cancer.

We treat patients from all over the world with the latest options in personalized medicine. The focus is on optimizing the immunological situation with the aim of prolonging life and maintaining quality of life. The IOZK has a clean room laboratory that produces drugs in accordance with ATMP-GMP guidelines, as well as an immunodiagnostic laboratory. You can find us in downtown Cologne.

doctors

Specialist in hematology and oncology (m/f/d)

Your responsibilities with us:

  • Medical care for international patients in a demanding, individual setting
  • Taking medical history, diagnostics, and development of individualized immuno-oncology therapy concepts
  • Close interdisciplinary collaboration with our GMP laboratory and research team
  • Participation in the further development of our therapeutic procedures
  • Upon request: scientific publications, lectures, and participation in international conferences

What you bring to the table:

  • Specialist certification in hematology and oncology
  • Interest in immuno-oncology and innovative therapeutic methods
  • Enjoyment of scientific work and interdisciplinary exchange
  • High degree of personal responsibility, empathy, and ability to work in a team
  • Very good German and English skills, other foreign languages are an advantage

What we offer you:

  • Unique therapeutic approach: immunotherapy as an adjunct to standard treatment
  • Thorough familiarization with our polyspecific immune response procedures
  • Interdisciplinary, collegial team with flat hierarchies
  • Relief from administrative tasks thanks to case managers and secretarial staff
  • Opportunities for further education and training in a highly dynamic field of research
  • High-quality medical work in the atmosphere of a private practice

General conditions:

  • Working hours: Monday to Friday, flexitime between 8:00 a.m. and 6:00 p.m.
  • Approximately every 6 weeks: Saturday service (morning)
  • Remuneration in accordance with TVöD-Ärzte (TdL) or individual agreement
  • Additional services:
    • Urban Sports Club membership
    • commuter pass
    • Company pension scheme (bAV) or capital-forming benefits
    • trust-based working hours
    • Complimentary beverages

Unsolicited application – Shape your future with us!

Would you like to become part of a dynamic and forward-looking team in the medical field? We are always looking for motivated and committed talent who want to work with us to shape the healthcare of the future.
Whether in nursing, management, or administration, we offer you the opportunity to contribute your skills and ideas. We provide a modern working environment, exciting challenges, and the chance to continuously develop your skills.
Your profile:
• Passion for the medical field
• Ability to work in a team and show initiative
• Willingness to take on responsibility
We offer:
• Diverse development and training opportunities
• An appreciative corporate culture
• A safe and modern workplace
We look forward to receiving your unsolicited application! Send us your documents and show us why you would be a valuable addition to our team.

Please send us the following documents:

– Cover letter

– Curriculum vitae (CV)

– Training certificates

– Certificates

administration

Receptionist (m/f/d)

Your responsibility

  • At reception, you are the first point of contact for our patients—you are responsible for welcoming and looking after our patients.
  • You take care of scheduling and organization.
  • Communication with our patients via email and telephone falls within your area of responsibility.
  • You are responsible for answering and forwarding phone calls.
  • You are responsible for performing general administrative tasks.

Your skills

  • You have already gained initial professional experience in reception work.
  • Completed training as a medical assistant is an advantage, but not a requirement for employment.
  • Proactive friendliness comes naturally to you.
  • Conscientiousness, organizational skills, and an eye for the essentials are no challenge for you.
  • Team spirit and a cool head in work-intensive situations
  • Confident use of MS Office applications and medical programs
  • You enjoy working with people and are always ready to listen to patients' concerns.
  • Knowledge of English is an advantage; other foreign languages are desirable.

What we offer you

  • Innovative work environment with flat hierarchies and the opportunity to contribute your own ideas
  • Working hours between 8:00 a.m. and 6:00 p.m., individual working time models possible, occasional weekend shifts
  • complimentary beverages
  • commuter pass
  • Discounted rates with our partner JustFit

Type of position: Full-time

Working hours:

  • 8-hour shift
  • flexitime
  • Monday through Friday
  • Weekend work possible

Services:

  • flexitime

Education:

  • Education/Training (Required)

Work experience:

  • Reception: 1 year (Required)

Place of work: On site

care

Nursing & Healthcare Assistant (m/f/d)

What we offer you:

• Work in an innovative medical environment
• Sophisticated atmosphere of a private practice
• Varied work with international patients
• Permanent contract
• Working hours: regular, family-friendly working hours; no night shifts, no Sunday or holiday shifts

Your responsibilities:

• Communication interface between doctor and patient
• Management of practice operations
• Reception and care of patients before, during, and after treatment
• Office and administrative work
• Implementation of therapeutic and diagnostic measures under medical supervision

What we expect from you:

• Completed vocational training as a nurse (m/f)
• Professional interaction with international patients
• Experienced working with a patient management system
• An optimistic, friendly personality with good communication skills
• Resilience and flexibility
• Language skills in various languages are advantageous

Medical assistant (m/f/d)

What we offer you:

• Work in an innovative medical environment
• Sophisticated atmosphere of a private practice
• Varied work with international patients
• Permanent contract
• Working hours: regular, family-friendly working hours; no night shifts, no Sunday or holiday shifts

Your responsibilities:

• Communication interface between doctor and patient
• Management of practice operations
• Reception and care of patients before, during, and after treatment
• Office and administrative work
• Implementation of therapeutic and diagnostic measures under medical supervision

What we expect from you:

• Completed vocational training as a medical assistant (m/f)
• Professional interaction with international patients
• Experienced working with a patient management system
• An optimistic, friendly personality with good communication skills
• Resilience and flexibility
• Language skills in various languages are advantageous

quality control

Quality Control Employee (m/f/d)

Your responsibilities:

  • Timely and GMP-compliant execution of in-process and product controls
  • Antibody labeling of PBMCs, immature and mature dendritic cells
  • Flow cytometric analysis of PBMCs, immature and mature dendritic cells
  • Conducting endotoxin testing
  • Sample preparation for mycoplasma testing and sterility testing and dispatch to contract laboratories
  • Performing protein determination according to Bradford
  • Reporting and processing of deviations, OOS results, and changes in the area of quality control
  • Planning and implementation of analytical method validations
  • Conducting root cause and risk analyses in close cooperation with other departments
  • Review of work instructions

Your skills:

  • Successfully completed training as an MTA, BTA, biology lab technician (m/f/d)
  • Basic knowledge of drug manufacturing or GMP or ISO is desirable
  • Confident use of common MS Office products
  • Open and friendly personality and ability to work in a team
  • Independent, solution-oriented, and proactive approach
  • Structured and conscientious work
  • Excellent communication skills, persuasiveness, and assertiveness

manufacture

Deputy Head of Production (m/f/d)

What we offer

  • Working in an innovative and challenging medical field
  • Varied, responsible work
  • Opportunities for development within the company
  • flexitime
  • Working days: Monday to Friday
  • Occasional weekend shifts with time off in lieu
  • Additional vacation days

Your activities

  • Preparation and review of work instructions
  • Organization of processes to ensure the manufacture of cell therapy products (dendritic cells)
  • Review of manufacturing records
  • Active participation in process validations
  • Support in the preparation of qualification and validation documents

What we expect

  • Successfully completed degree in natural sciences or equivalent training in the fields of biology, medicine, pharmacy, or chemistry (ideally with initial professional experience in a GMP or ISO environment)
  • Knowledge in the laboratory area of drug manufacturing
  • Confident use of common MS Office products
  • Very good written and spoken German and good written and spoken English desirable
  • Enjoying teamwork
  • Communication and leadership skills
  • Independent, solution-oriented, and proactive approach
  • Structured and conscientious work

Type of position: Full-time

Production employee (m/f/d)

What we offer

  • Working in an innovative and challenging medical field
  • Working in a technically advanced work environment
  • Varied, responsible work
  • Opportunities for development within the company
  • flexitime
  • Working days: Monday to Friday
  • Occasional weekend shifts with time off in lieu
  • Additional vacation days

Your responsibilities:

  • Production of cell therapeutics in a cleanroom laboratory
  • Processing of patient material under aseptic conditions
  • Maintenance of laboratory equipment and assistance with laboratory organization
  • Collaboration in process optimization

What we expect:

  • Successfully completed training as an MTA, BTA, biology lab technician (m/f/d)
  • Ideally, initial professional experience in a GMP or ISO laboratory
  • Enjoy working in a team and have strong communication skills
  • Flexibility in working hours and willingness to work weekends
  • Structured and conscientious work
  • Confident use of common MS Office products
  • Fluent German and good English skills

Type of position: Full-time

Deputy Head of Production (m/f/d)

What we offer:

  • Working in an innovative and challenging medical environment
  • Upscale atmosphere of a private practice
  • Varied work with demanding patients
  • flexitime
  • Working days: Monday to Saturday
  • Core working hours: 9:00 a.m. to 5:00 p.m.
  • Approximately every 6 weeks, Saturday daytime shift (morning – noon)

Your responsibilities:

  • Preparation and review of work instructions
  • Organization of processes to ensure the manufacture of cell therapy products (dendritic cells)
  • Review of manufacturing records
  • Active participation in process validations
  • Support in the preparation of qualification and validation documents

What we expect:

  • Successfully completed degree in natural sciences or equivalent training in the fields of biology, medicine, pharmacy, or chemistry (ideally with initial professional experience in a GMP or ISO environment)
  • Knowledge in the laboratory area of drug manufacturing
  • Confident use of common MS Office products
  • Very good written and spoken German and good written and spoken English desirable
  • Enjoying teamwork
  • Communication and leadership skills
  • Independent, solution-oriented, and proactive approach
  • Structured and conscientious work

Type of position: Full-time, permanent position

Production employee (m/f/d)

What we offer:

  • Working in an innovative and challenging medical environment
  • Upscale atmosphere of a private practice
  • Varied work with demanding patients
  • flexitime
  • Working days: Monday to Saturday
  • Core working hours: 9:00 a.m. to 5:00 p.m.
  • Approximately every 6 weeks, Saturday daytime shift (morning – noon)

Your responsibilities:

  • Production of cell therapeutics in a cleanroom laboratory
  • Processing of patient material under aseptic conditions
  • Maintenance of laboratory equipment and assistance with laboratory organization
  • Collaboration in process optimization

What we expect:

  • Successfully completed training as an MTA, BTA, biology lab technician (m/f/d)
  • Ideally, initial professional experience in a GMP or ISO laboratory
  • Enjoy working in a team and have strong communication skills
  • Flexibility in working hours and willingness to work weekends
  • Structured and conscientious work
  • Confident use of common MS Office products
  • Fluent German and good English skills

Type of position: Full-time, permanent position

We look forward to receiving your application:

If you have any questions or require further information, please contact Mr. Angelo Ibba on +49 (0)221 420 399 127 for a personal consultation. Please send your application to: Personal@iozk.de

mailto:Personal@iozk.de
Angelo Ibba
IOZK

laboratory staff

We currently have no vacancies.

Biological-Technical Assistant (m/f/d) in the field of immunodiagnostic laboratory/full-time

The IOZK is a center specializing in translational medicine. Our focus is on the timely implementation of findings from basic immunological research for the treatment of cancer. We treat our patients using the latest options in personalized medicine, with a focus on optimizing their immunological situation. Our patients come from all over the world and gain both time and quality of life through our therapy. The IOZK has a clean room laboratory that produces drugs in accordance with ATMP-GMP guidelines, as well as an immunodiagnostic laboratory. We are located in downtown Cologne. To support our immunodiagnostics team, we are looking for you to fill the position of

Biological-technical assistant

Your responsibilities will include:

  • Processing and analysis of human samples and testing of immunological efficacy using flow cytometry
  • Evaluation and documentation of the analyses
  • Organization and procurement of reagents as well as general laboratory activities
  • Maintenance of laboratory equipment
  • Collaboration in the development, standardization, and validation of new methods for evaluating immune responses
  • Confident use of MS Office and experience with common laboratory programs or other statistics and visualization programs

What we expect from you:

  • Successfully completed training as a BTA, MTA, biology lab technician (m/f/d), relevant university degree (e.g., bachelor's) or comparable qualification
  • Practical laboratory experience is helpful.
  • Basic experience in the application of immunological methods such as flow cytometry is desirable.
  • Experience in the field of qualification/validation or method transfer is an advantage.
  • Ability to work in a team and strong communication skills
  • Structured and conscientious work in a dynamic environment
  • Flexible working hours (8:30 a.m. to 8:00 p.m.), participation in Saturday shifts (+/- every 6 weeks)
  • Fluent German and very good English skills

What we offer you:

  • Working in an innovative medical environment
  • Upscale atmosphere of a private practice
  • Varied activities
  • Discounted underground parking spaces or a discounted job ticket
  • Working in two shifts, flexitime, Saturday work on a rotating basis with time off in lieu
  • Economics services
  • Complimentary beverages

Quality Management Employee

Your responsibilities:

  • Processing of deviations, OOS results, and changes, as well as CAPA
  • Creation and coordination of CAPA measures, as well as monitoring and implementation
  • Preparation and coordination of change requests (change control) as well as monitoring and implementation
  • Conducting root cause and risk analyses in close cooperation with other departments
  • Support in the preparation of qualification and validation documents
  • Preparation and review of work instructions

What we expect from you:

  • Successfully completed degree in natural sciences or equivalent training in the fields of pharmacy, medicine, biology, or chemistry (ideally with initial professional experience in a GMP or ISO environment)
  • Very good knowledge of drug manufacturing or GMP or ISO desirable
  • Confident use of common MS Office products
  • Good written and spoken English skills desirable
  • Open and friendly personality and ability to work in a team
  • Independent, solution-oriented, and proactive approach
  • Structured and conscientious work
  • Excellent communication skills, persuasiveness, and assertiveness

What we offer you:

  • Working in an innovative medical environment with a unique therapeutic approach
  • Collaboration in a dedicated and competent team
  • Participation in workplace fitness programs
  • Employee ticket or discounted parking

Laboratory Manager (m/f/d) in the field of immunology

To support our diagnostics team, we are looking for you to fill the position of Laboratory Manager (m/f/d) in the field of immunology as soon as possible.

Your responsibilities:

• Responsible management of the diagnostics laboratory in the field of immunology, including evaluation, validation, and approval of flow cytometric measurements
• Coordination of routine operations, planning of upcoming analyses, and technical guidance of technical staff
• Implementation and transfer of existing quality control methods in accordance with GMP guidelines
• Development of risk analyses, creation and revision of SOPs
• Collaboration in interdisciplinary project teams

What we expect from you:

• Completed university degree in natural sciences, preferably with a master's degree, e.g., in biology, biotechnology, biochemistry, or a comparable qualification
• Several years of professional and management experience, ideally in the field of immunology and flow cytometry
• Experience in qualification/validation or method transfer is an advantage
• Strong communication skills and leadership abilities
• Ability to work in a team and a structured approach to work in a dynamic environment
• Fluent German and very good English skills

We offer you a challenging and varied role in an innovative and dynamic company that is on a growth trajectory.

Technical assistants / laboratory assistants for aseptic manufacturing (m/f)

Your responsibilities:

  • Production of patient-specific, applicable vaccines under clean room conditions and their GMP-compliant documentation
  • Conducting analytical in-process controls
  • Collaboration in the optimization of production processes
  • Processing of blood and tissues

What we expect from you:

  • Successfully completed training as a BTA/MTA or laboratory technician
  • Experience in aseptic manufacturing is an advantage, but not a requirement.
  • Basic understanding of cell biology and immunology working methods
  • Experience working according to SOPs in the GMP environment of a pharmaceutical company is an advantage
  • Independent, meticulous, structured approach to work
  • ability to work in a team
  • Experience with MS Office

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Your responsibilities:

  • Production of patient-specific, applicable vaccines under clean room conditions and their GMP-compliant documentation
  • Conducting analytical in-process controls
  • Collaboration in the optimization of production processes
  • Processing of blood and tissues

What we expect from you:

  • Successfully completed training as a BTA/MTA or laboratory technician
  • Experience in aseptic manufacturing is an advantage, but not a requirement.
  • Basic understanding of cell biology and immunology working methods
  • Experience working according to SOPs in the GMP environment of a pharmaceutical company is an advantage
  • Independent, meticulous, structured approach to work
  • ability to work in a team
  • Experience with MS Office

Research assistants for production or quality control (m/f)

What we offer you:

  • Collaboration within a dedicated and competent team in a collegial working atmosphere
  • Varied and independent work
  • Work in a unique therapeutic approach and participation in ongoing development
  • Internal and external training opportunities

Your responsibilities:

  • Planning and coordination of qualifications (e.g., clean room) and validations (e.g., analytical methods, manufacturing processes) in cooperation with other departments
  • Design and execution of stability studies for excipients and active ingredients
  • Preparation of risk analyses, work instructions, and regulations; document maintenance in the area of manufacturing and testing of active ingredients (e.g., NDV)
  • Preparation and coordination of change requests (change control) and implementation of action plans
  • Creation of CAPA measures and coordination of implementation
  • Handling of deviations and OOS

What we expect from you:

  • Successfully completed degree in natural sciences (M.Sc. or Ph.D.) or equivalent training and several years of professional experience in the fields of pharmaceuticals, biology (ideally professional experience in a GMP environment)
  • Good knowledge of drug manufacturing/GMP and the relevant regulations
  • Confident use of common MS Office products
  • Good written and spoken English skills desirable
  • Open and friendly personality and ability to work in a team
  • Independent, solution-oriented, and proactive action
  • Structured and conscientious work
  • Excellent communication skills, persuasiveness, and assertiveness

Research assistant in the diagnostics laboratory (m/f)

What you can expect:

  • Immunological processing of patient samples
  • Performing flow cytometry on new, innovative systems
  • Processing/documentation of patient data/study results
  • Deputy management duties (approval of findings, organization of employees)
  • Assistance in the development of new immunological testing methods

What you bring to the table:

  • Completed degree (B.Sc.) in biology, biochemistry, or related natural sciences
  • Immunological knowledge and practical laboratory experience in the field of flow cytometry
  • Willingness to work shifts and weekends
  • Confident use of MS Office
  • Structured and solution-oriented approach to work, highly self-motivated

Technical assistants / laboratory assistants for aseptic manufacturing (m/f)

Your responsibilities:

  • Production of patient-specific, applicable vaccines under clean room conditions and their GMP-compliant documentation
  • Conducting analytical in-process controls
  • Collaboration in the optimization of production processes
  • Processing of blood and tissues

What we expect from you:

  • Successfully completed training as a BTA/MTA or laboratory technician
  • Experience in aseptic manufacturing is an advantage, but not a requirement.
  • Basic understanding of cell biology and immunology working methods
  • Experience working according to SOPs in the GMP environment of a pharmaceutical company is an advantage
  • Independent, meticulous, structured approach to work
  • ability to work in a team
  • Experience with MS Office

We look forward to receiving your application:

If you have any questions or require further information about this position, please contact Ms. Katharina Sprenger at +49 (0)221 420 399 25 for a personal consultation. Please send your application to: k.sprenger@iozk.de

mailto:k.sprenger@iozk.de
Dr. Katharina Sprenger
IOZK

The IOZK

  • philosophy
  • team
  • treatment center
  • laboratories
  • career
  • Travel and accommodation

Interesting facts

  • Evidence-based medicine at the IOZK
  • Laboratories at the IOZK
  • IOZK Foundation magazine: IOZK Consilium
  • Video: Patient Ms. Ebel talks about her experiences with IOZK immunotherapy
  • Video: Patient reports on experiences with IOZK immunotherapy
  • Information brochure from the IOZK Foundation
  • Personalized medicine in oncology
  • The development of cancer
  • Nobel Prizes for immunotherapy
  • Curcumin in medical applications

Experts in Tumor Immunology

  • TikTok
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  • LinkedIn
  • YouTube
  • Podcast
IMMUN-ONKOLOGISCHES ZENTRUM KÖLN
Hohenstaufenring 30–32
50674 Köln | Deutschland

T: +49 (0)221 – 420 399 25
E-Mail: info@iozk.de

The IOZK

  • philosophy
  • team
  • treatment center
  • laboratories
  • career
  • Travel and accommodation

IOZK Immunotherapy

  • IOZK immunotherapy
  • The IO-VAC® vaccine
  • treatment process
  • therapy costs
  • Frequently Asked Questions

IOZK Publications

  • Neue IOZK Veröffentlichung zum Thema Liquid Biopsy
  • Stefaan van Gool ist Herausgeber einer Sonderausgabe im Journal of Molecular Sciences
  • IOZK Analyse belegt gute Verträglichkeit der IOZK Immuntherapie beim Diffusen intrinsischen pontinen Gliom (DIPG)
© 2025 IOZK Immun-Onkologisches Zentrum Köln
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