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Freelance Mathematics Expert with Python Expertise - AI Trainer at Mindrift
Berlin, , Germany - Full Time
Skills Needed
Mathematics, Python, Numpy, Pandas, Scipy, Ai Evaluation, Problem Design, Calculations Validation, Structured Scoring, Professional Practice, Logic Improvement, English Proficiency, Professional Certifications, Applied Projects, Mathematics Experience
Specialization
Candidates should have a degree in Mathematics or related fields and at least 3 years of professional mathematics experience. Strong written English and Python proficiency are also required.
Experience Required
Minimum 5 year(s)
German Speaking Banking Support - Digital Bank | Work In Greece at Mercier Consultancy MD
Berlin, , Germany - Full Time
Skills Needed
Fluency In German, Customer Service, Banking Knowledge, Communication Skills, Problem Solving, Technical Proficiency, Client Satisfaction, Professionalism
Specialization
Fluency in German is essential, and previous experience in customer service, especially in banking, is preferred. Strong communication skills and a problem-solving mindset are also required.
Deputy Store Manager (m/w/d) für die Vodafone Filiale in Berlin (Schloßstra at Vodafone United States
Berlin, , Germany - Full Time
Skills Needed
Customer Service, Sales, Technical Knowledge, Team Leadership, Product Knowledge, Communication Skills, It Skills, Data Analysis, Problem Solving, Negotiation Skills, Curiosity, Training, Consultation, Client Management, Business Development
Specialization
A completed vocational training or degree in business administration along with several years of experience in sales and service environments is required. Strong IT and data skills, technical know-how, and fluent German and/or English are also essential.
Experience Required
Minimum 2 year(s)
Consultant (w/m/d) für Bau- & Immobilienprojekte in der Entwicklungsberatun at BOHNZIRLEWAGEN
Berlin, , Germany - Full Time
Skills Needed
Urban Development, Project Management, Team Coordination, Workshop Preparation, Client Communication, Analytical Skills, Ms Office, Presentation Skills, Sustainability, Real Estate Consulting, Feasibility Studies, Location Analysis, Development Management, Organizational Understanding, German Language, English Language
Specialization
Candidates should have a completed degree in relevant fields such as urban planning or architecture, along with some practical experience in urban or project development. Strong communication skills and proficiency in German and English are also required.
Empfangsmitarbeiter (m/w/d) at The Cloud One
Berlin, , Germany - Full Time
Skills Needed
Guest Service, Check In, Check Out, Reservation Management, Billing, Administrative Tasks, Team Collaboration, Communication, Quality Awareness, Service Orientation, Multicultural Teamwork, Problem Solving, German Language, English Language, Hospitality, Customer Care
Specialization
Candidates should have a background in hospitality or a strong interest in entering the field. Key qualities include a high level of service orientation, communication skills in German and English, and the ability to work collaboratively in a team.
Housekeeping Intern (m/w/d) at Residence Inn by Marriott Columbus DT
Berlin, , Germany - Full Time
Skills Needed
Guest Service, Cleaning, Attention To Detail, Time Management, Teamwork, Safety Awareness, Communication, Problem Solving, Physical Stamina, Organization, Confidentiality, Professional Appearance, Maintenance Reporting, Hospitality, Customer Service, Adaptability
Specialization
No specific educational qualifications or related work experience are required for this position. The intern should be able to perform physical tasks and demonstrate a commitment to guest service.
Page / Bell Staff (m/w/d) at Residence Inn by Marriott Columbus DT
Berlin, , Germany - Full Time
Skills Needed
Customer Service, Communication, Teamwork, Attention To Detail, Friendly Personality, Problem Solving, Time Management, Multilingual Skills, Driving License, Hospitality, Service Orientation, Professionalism, Adaptability, Interpersonal Skills, Positive Attitude, Hands On Approach
Specialization
Previous experience is preferred, but newcomers are welcome. A valid driver's license and strong communication skills in German and English are required.
Senior Manager, Credit and Debit, Europe at Visa
Berlin, , Germany - Full Time
Skills Needed
Product Management, Payments, Banking, Operational Excellence, Commercial Excellence, Data Analysis, Communication, Presentation Skills, Time Management, Organizational Skills, Stakeholder Engagement, Problem Solving, Curiosity, Execution Focus, Influencing, Collaboration
Specialization
Candidates should have experience in managing Credit or Debit card programs and a strong understanding of payments and banking. Excellent communication skills and the ability to work independently are also essential.
Experience Required
Minimum 5 year(s)
Koch / Köchin (m/w/d) am Alexanderplatz at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Koch, Küchenkenntnisse, Lebensmittelqualität, Zubereitungstechniken, Kreativität, Präsentation, Teamarbeit, Gastgeber, Gestalter
Specialization
A completed vocational training or experience in the kitchen is required. You should have a passion for hosting and creating, along with the ability to inspire others.
Sicherheitsmitarbeiter Sicherheitsdienstfachkraft (Vollzeit / Teilzeit / Mi at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Security Services, Access Control, Surveillance, Alarm Response, Customer Service, Communication, Teamwork, Reliability, Discretion, Driving, Event Security, Building Management, Conflict Resolution, Problem Solving, Flexibility, Professionalism
Specialization
Candidates should have initial work experience and a completed training or certification according to § 34 a of the IHK. A valid driver's license and proficiency in German are also required.
IAM Product Owner at CROWDCONSULTANTS
Berlin, , Germany - Full Time
Skills Needed
Product Owner, Service Owner, Product Manager, Active Directory, Identity Solutions, Security Mindset, Agile Delivery, Backlog Management, Stakeholder Alignment, Decision Making, Functional Testing, Security Testing, Operational Testing, Implementation Readiness, Privileged Access, Least Privilege, Auditing
Specialization
Proven experience as a Product Owner or similar role in identity or security platforms is required. Strong understanding of Active Directory and experience in segmented environments is preferred.
Experience Required
Minimum 5 year(s)
Head, Rider Quality at Delivery Hero
Berlin, , Germany - Full Time
Skills Needed
Leadership, Compliance, Logistics, Operations Management, Process Improvement, Automation, Customer Experience, Rider Engagement, Retention Strategies, Data Analysis, Risk Management, Fraud Prevention, Cross Functional Collaboration, Communication, Mentoring, Team Management
Specialization
Candidates should have a minimum of 10 years of proven leadership experience in compliance, logistics, or operations management. Strong understanding of customer experience and expertise in collaborating with cross-functional teams is essential.
Experience Required
Minimum 10 year(s)
Post-Onboarding Success Specialist (Fixed-Term Contract) at Wolt - English
Berlin, , Germany - Full Time
Skills Needed
Partner Support, Communication, Organizational Skills, Multitasking, Data Analysis, Training, Problem Solving, Collaboration, Coaching, Attention To Detail, Creativity, Gastronomy Experience, Google Suite
Specialization
Candidates should have experience in partner support or communication-heavy roles, with excellent organizational and multitasking skills. Proficiency in German and English, along with a detail-oriented and creative mindset, is essential.
Experience Required
Minimum 2 year(s)
Security (m/w/d) für Bürgeramt in Neukölln at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Security, Surveillance, Access Control, Reliability, Interpersonal Skills, German Language Proficiency, Emergency Response, Object Protection, Professionalism, Self Confidence
Specialization
Candidates must have an IHK certificate of competence according to §34a GewO and a clean extended background check. Additional requirements include proof of measles vaccination and good German language skills.
Initiativbewerbung - Kfz-Mechanik / Automotive (d/m/w) at AUTO1 Group
Berlin, , Germany - Full Time
Skills Needed
Automotive Expertise, Customer Service, Sales Skills, Negotiation, Communication, Teamwork, Precision, Critical Thinking, Self Responsibility, German Language Proficiency, Driving License
Specialization
Candidates should have initial to several years of experience in the automotive industry or a comparable environment. Strong communication and sales skills, along with a valid driver's license and fluent German, are also required.
Experience Required
Minimum 2 year(s)
Data Scientist (f/m/div) at solarisBank AG at solarisBank
Berlin, , Germany - Full Time
Skills Needed
N/A
Qualification
Graduate
Experience Required
Minimum 5 year(s)
Praktikum Customer Service / Kundenbetreuung (m/w/d) at Tianshi
Berlin, , Germany - Full Time
Skills Needed
Customer Service, Communication Skills, Problem Solving, Teamwork, Initiative, Ms Office, German Language, English Language
Specialization
Candidates should have excellent German and English language skills, strong communication abilities, and a structured, reliable work style. Experience in customer service or commercial areas is advantageous but not mandatory.
Pricing Manager (m/w/d) Marine Governmental at Rolls-Royce
Berlin, Baden-Württemberg, Germany - Full Time
Skills Needed
Pricing Models, Market Analysis, Stakeholder Collaboration, Analytical Skills, Communication Skills, Customer Orientation, Sales Experience, Quantitative Focus, Price Monitoring, Industry Trends, Price Elasticity, Project Management, Strategic Thinking, Teamwork, Problem Solving, Structured Working Style, Bilingual Communication
Specialization
Candidates should have a degree in economics or business administration with experience in commercial sales or marketing. Strong analytical and communication skills in both English and German are essential.
Experience Required
Minimum 2 year(s)
HR-Sachbearbeiter / Personalsachbearbeiter (m/w/d) in Berlin at MY Humancapital GmbH
Berlin, , Germany - Full Time
Skills Needed
Human Resources, Employee Support, Labor Law, Social Law, Tariff Law, Ms Office, Sap, Independent Work, Structured Work, Reliable Work, Service Orientation, German Language, English Language
Specialization
You should have completed a commercial training, such as office management or industrial management. Experience as an HR officer or in a similar position, along with knowledge of labor, social, and tariff law, is preferred.
Experience Required
Minimum 2 year(s)
Sicherheitsmitarbeiter (m/w/d) Objektschutz in Berlin (Vollzeit, Teilzeit, at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Sachkundeprüfung, Zuverlässigkeit, Kundenfreundlichkeit, Dokumentation, Schutz Von Gebäuden, Kontrollgänge, Alarmdienste
Specialization
Candidates must have a valid security certification according to §34a GewO and an impeccable criminal record. Reliability and customer friendliness are essential traits for this position.
Freelance Mathematics Expert with Python Expertise - AI Trainer at Mindrift
Berlin, , Germany -
Full Time

Start Date

Immediate

Expiry Date

01 May, 26

Salary

42.0

Posted On

31 Jan, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

No

Skills

Mathematics, Python, NumPy, Pandas, SciPy, AI Evaluation, Problem Design, Calculations Validation, Structured Scoring, Professional Practice, Logic Improvement, English Proficiency, Professional Certifications, Applied Projects, Mathematics Experience

Industry

technology;Information and Internet

Description
Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation isproject-based, not permanent employment. What this opportunity involves While each project involves unique tasks, contributors may: Design rigorous mathematics problems reflecting professional practice; Evaluate AI solutions for correctness, assumptions, and constraints; Validate calculations or simulations using Python (NumPy, Pandas, SciPy); Improve AI reasoning to align with industry-standard logic; Apply structured scoring criteria to multi-step problems. What we look for This opportunity is a good fit for mathematicians with an experience in python open to part-time, non-permanent projects. Ideally, contributors will have: Degree in Mathematics or related fields, e.g. Algebra, Calculus, Number theory, etc. 3+ years of professional mathematics experience Strong written English (C1/C2) Strong Python proficiency for numerical validation Stable internet connection Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects are an advantage. How it works Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid Project time expectations For this project, tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active. Payment Paid contributions, with rates up to $42/hour* Fixed project rate or individual rates, depending on the project Some projects include incentive payments *Note: Rates vary based on expertise, skills assessment, location, project needs, and other factors. Higher rates may be offered to highly specialized experts. Lower rates may apply during onboarding or non-core project phases. Payment details are shared per project.

How To Apply:

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Responsibilities
Contributors will design rigorous mathematics problems and evaluate AI solutions for correctness and assumptions. They will also validate calculations using Python and improve AI reasoning.
Freelance Mathematics Expert with Python Expertise - AI Trainer at Mindrift
Berlin, , Germany - Full Time
Skills Needed
Mathematics, Python, Numpy, Pandas, Scipy, Ai Evaluation, Problem Design, Calculations Validation, Structured Scoring, Professional Practice, Logic Improvement, English Proficiency, Professional Certifications, Applied Projects, Mathematics Experience
Specialization
Candidates should have a degree in Mathematics or related fields and at least 3 years of professional mathematics experience. Strong written English and Python proficiency are also required.
Experience Required
Minimum 5 year(s)
German Speaking Banking Support - Digital Bank | Work In Greece at Mercier Consultancy MD
Berlin, , Germany - Full Time
Skills Needed
Fluency In German, Customer Service, Banking Knowledge, Communication Skills, Problem Solving, Technical Proficiency, Client Satisfaction, Professionalism
Specialization
Fluency in German is essential, and previous experience in customer service, especially in banking, is preferred. Strong communication skills and a problem-solving mindset are also required.
Deputy Store Manager (m/w/d) für die Vodafone Filiale in Berlin (Schloßstra at Vodafone United States
Berlin, , Germany - Full Time
Skills Needed
Customer Service, Sales, Technical Knowledge, Team Leadership, Product Knowledge, Communication Skills, It Skills, Data Analysis, Problem Solving, Negotiation Skills, Curiosity, Training, Consultation, Client Management, Business Development
Specialization
A completed vocational training or degree in business administration along with several years of experience in sales and service environments is required. Strong IT and data skills, technical know-how, and fluent German and/or English are also essential.
Experience Required
Minimum 2 year(s)
Consultant (w/m/d) für Bau- & Immobilienprojekte in der Entwicklungsberatun at BOHNZIRLEWAGEN
Berlin, , Germany - Full Time
Skills Needed
Urban Development, Project Management, Team Coordination, Workshop Preparation, Client Communication, Analytical Skills, Ms Office, Presentation Skills, Sustainability, Real Estate Consulting, Feasibility Studies, Location Analysis, Development Management, Organizational Understanding, German Language, English Language
Specialization
Candidates should have a completed degree in relevant fields such as urban planning or architecture, along with some practical experience in urban or project development. Strong communication skills and proficiency in German and English are also required.
Empfangsmitarbeiter (m/w/d) at The Cloud One
Berlin, , Germany - Full Time
Skills Needed
Guest Service, Check In, Check Out, Reservation Management, Billing, Administrative Tasks, Team Collaboration, Communication, Quality Awareness, Service Orientation, Multicultural Teamwork, Problem Solving, German Language, English Language, Hospitality, Customer Care
Specialization
Candidates should have a background in hospitality or a strong interest in entering the field. Key qualities include a high level of service orientation, communication skills in German and English, and the ability to work collaboratively in a team.
Housekeeping Intern (m/w/d) at Residence Inn by Marriott Columbus DT
Berlin, , Germany - Full Time
Skills Needed
Guest Service, Cleaning, Attention To Detail, Time Management, Teamwork, Safety Awareness, Communication, Problem Solving, Physical Stamina, Organization, Confidentiality, Professional Appearance, Maintenance Reporting, Hospitality, Customer Service, Adaptability
Specialization
No specific educational qualifications or related work experience are required for this position. The intern should be able to perform physical tasks and demonstrate a commitment to guest service.
Page / Bell Staff (m/w/d) at Residence Inn by Marriott Columbus DT
Berlin, , Germany - Full Time
Skills Needed
Customer Service, Communication, Teamwork, Attention To Detail, Friendly Personality, Problem Solving, Time Management, Multilingual Skills, Driving License, Hospitality, Service Orientation, Professionalism, Adaptability, Interpersonal Skills, Positive Attitude, Hands On Approach
Specialization
Previous experience is preferred, but newcomers are welcome. A valid driver's license and strong communication skills in German and English are required.
Senior Manager, Credit and Debit, Europe at Visa
Berlin, , Germany - Full Time
Skills Needed
Product Management, Payments, Banking, Operational Excellence, Commercial Excellence, Data Analysis, Communication, Presentation Skills, Time Management, Organizational Skills, Stakeholder Engagement, Problem Solving, Curiosity, Execution Focus, Influencing, Collaboration
Specialization
Candidates should have experience in managing Credit or Debit card programs and a strong understanding of payments and banking. Excellent communication skills and the ability to work independently are also essential.
Experience Required
Minimum 5 year(s)
Koch / Köchin (m/w/d) am Alexanderplatz at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Koch, Küchenkenntnisse, Lebensmittelqualität, Zubereitungstechniken, Kreativität, Präsentation, Teamarbeit, Gastgeber, Gestalter
Specialization
A completed vocational training or experience in the kitchen is required. You should have a passion for hosting and creating, along with the ability to inspire others.
Sicherheitsmitarbeiter Sicherheitsdienstfachkraft (Vollzeit / Teilzeit / Mi at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Security Services, Access Control, Surveillance, Alarm Response, Customer Service, Communication, Teamwork, Reliability, Discretion, Driving, Event Security, Building Management, Conflict Resolution, Problem Solving, Flexibility, Professionalism
Specialization
Candidates should have initial work experience and a completed training or certification according to § 34 a of the IHK. A valid driver's license and proficiency in German are also required.
IAM Product Owner at CROWDCONSULTANTS
Berlin, , Germany - Full Time
Skills Needed
Product Owner, Service Owner, Product Manager, Active Directory, Identity Solutions, Security Mindset, Agile Delivery, Backlog Management, Stakeholder Alignment, Decision Making, Functional Testing, Security Testing, Operational Testing, Implementation Readiness, Privileged Access, Least Privilege, Auditing
Specialization
Proven experience as a Product Owner or similar role in identity or security platforms is required. Strong understanding of Active Directory and experience in segmented environments is preferred.
Experience Required
Minimum 5 year(s)
Head, Rider Quality at Delivery Hero
Berlin, , Germany - Full Time
Skills Needed
Leadership, Compliance, Logistics, Operations Management, Process Improvement, Automation, Customer Experience, Rider Engagement, Retention Strategies, Data Analysis, Risk Management, Fraud Prevention, Cross Functional Collaboration, Communication, Mentoring, Team Management
Specialization
Candidates should have a minimum of 10 years of proven leadership experience in compliance, logistics, or operations management. Strong understanding of customer experience and expertise in collaborating with cross-functional teams is essential.
Experience Required
Minimum 10 year(s)
Post-Onboarding Success Specialist (Fixed-Term Contract) at Wolt - English
Berlin, , Germany - Full Time
Skills Needed
Partner Support, Communication, Organizational Skills, Multitasking, Data Analysis, Training, Problem Solving, Collaboration, Coaching, Attention To Detail, Creativity, Gastronomy Experience, Google Suite
Specialization
Candidates should have experience in partner support or communication-heavy roles, with excellent organizational and multitasking skills. Proficiency in German and English, along with a detail-oriented and creative mindset, is essential.
Experience Required
Minimum 2 year(s)
Security (m/w/d) für Bürgeramt in Neukölln at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Security, Surveillance, Access Control, Reliability, Interpersonal Skills, German Language Proficiency, Emergency Response, Object Protection, Professionalism, Self Confidence
Specialization
Candidates must have an IHK certificate of competence according to §34a GewO and a clean extended background check. Additional requirements include proof of measles vaccination and good German language skills.
Initiativbewerbung - Kfz-Mechanik / Automotive (d/m/w) at AUTO1 Group
Berlin, , Germany - Full Time
Skills Needed
Automotive Expertise, Customer Service, Sales Skills, Negotiation, Communication, Teamwork, Precision, Critical Thinking, Self Responsibility, German Language Proficiency, Driving License
Specialization
Candidates should have initial to several years of experience in the automotive industry or a comparable environment. Strong communication and sales skills, along with a valid driver's license and fluent German, are also required.
Experience Required
Minimum 2 year(s)
Data Scientist (f/m/div) at solarisBank AG at solarisBank
Berlin, , Germany - Full Time
Skills Needed
N/A
Qualification
Graduate
Experience Required
Minimum 5 year(s)
Praktikum Customer Service / Kundenbetreuung (m/w/d) at Tianshi
Berlin, , Germany - Full Time
Skills Needed
Customer Service, Communication Skills, Problem Solving, Teamwork, Initiative, Ms Office, German Language, English Language
Specialization
Candidates should have excellent German and English language skills, strong communication abilities, and a structured, reliable work style. Experience in customer service or commercial areas is advantageous but not mandatory.
Pricing Manager (m/w/d) Marine Governmental at Rolls-Royce
Berlin, Baden-Württemberg, Germany - Full Time
Skills Needed
Pricing Models, Market Analysis, Stakeholder Collaboration, Analytical Skills, Communication Skills, Customer Orientation, Sales Experience, Quantitative Focus, Price Monitoring, Industry Trends, Price Elasticity, Project Management, Strategic Thinking, Teamwork, Problem Solving, Structured Working Style, Bilingual Communication
Specialization
Candidates should have a degree in economics or business administration with experience in commercial sales or marketing. Strong analytical and communication skills in both English and German are essential.
Experience Required
Minimum 2 year(s)
HR-Sachbearbeiter / Personalsachbearbeiter (m/w/d) in Berlin at MY Humancapital GmbH
Berlin, , Germany - Full Time
Skills Needed
Human Resources, Employee Support, Labor Law, Social Law, Tariff Law, Ms Office, Sap, Independent Work, Structured Work, Reliable Work, Service Orientation, German Language, English Language
Specialization
You should have completed a commercial training, such as office management or industrial management. Experience as an HR officer or in a similar position, along with knowledge of labor, social, and tariff law, is preferred.
Experience Required
Minimum 2 year(s)
Sicherheitsmitarbeiter (m/w/d) Objektschutz in Berlin (Vollzeit, Teilzeit, at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Sachkundeprüfung, Zuverlässigkeit, Kundenfreundlichkeit, Dokumentation, Schutz Von Gebäuden, Kontrollgänge, Alarmdienste
Specialization
Candidates must have a valid security certification according to §34a GewO and an impeccable criminal record. Reliability and customer friendliness are essential traits for this position.