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Freelance Software Developer (Ruby) / Quality Assurance (AI Trainer) at Mindrift

Munich, Bavaria, Germany - Full Time

Skills Needed
Ruby, Quality Assurance, Code Review, Automation Tools, Ai/Ml, Ci/Cd, Docker, Scripting, Defect Documentation, Profiling, Debugging, Test Integration, Code Generation, Data Annotation, Collaboration, Adaptability

Specialization
Candidates must hold a Bachelor's or Master's Degree in Software Development or related fields and have at least 3 years of professional experience with Ruby testing frameworks. Advanced English proficiency and familiarity with CI/CD environments and AI/ML solutions are also required.

Experience Required
Minimum 2 year(s)

Backend Developer (m/w/d) at P.A.C. GmbH

Schweinfurt, Bavaria, Germany - Full Time

Skills Needed
Typescript, Node.Js, Graphql, Apollo Server, Api Development, Mongodb, Nosql Databases, Clean Code, Testing, Monitoring, Teamwork, Initiative, Agile Methodologies, Ux/Ui Collaboration, Data Structures, Performance Optimization

Specialization
Candidates should have a degree in computer science or a related field, with strong knowledge of TypeScript and experience in Node.js and GraphQL. A structured working style and enthusiasm for modern technologies and sustainability are also important.

Experience Required
Minimum 2 year(s)

Partner Solution Sales -SME at Microsoft

Santanyí, Balearic Islands, Germany - Full Time

Skills Needed
Sales, Partner Engagement, Cloud Solutions, Co Selling, Business Strategy, Pipeline Management, Consultative Selling, Territory Planning, Revenue Growth, Customer Success, Collaboration, Market Insights, Solution Selling, Performance Tracking, Training, Accountability

Specialization
Candidates must have a Bachelor's Degree and solid experience in sales, partner sales, or business development. Fluency in German and English is required.

Experience Required
Minimum 2 year(s)

Senior Document Controller (m/f/d)- Data Centres at Turner Townsend

Frankfurt, Hesse, Germany - Full Time

Skills Needed
Document Management, Analytical Skills, Organizational Skills, Interpersonal Skills, Leadership, Technical Documentation, Team Coordination, Compliance, Data Maintenance, Project Management, Communication, It Proficiency, Construction Industry Knowledge, Task Management, Report Generation, Collaboration

Specialization
Candidates should have a university degree, preferably with a technical background, and proven experience as a Lead Document Controller or in a similar role within the construction industry. Strong analytical, organizational, and interpersonal skills are essential, along with proficiency in document management systems and fluency in English and German.

Experience Required
Minimum 5 year(s)

Freelance Software Developer (Ruby) / Quality Assurance (AI Trainer) at Mindrift

Hamburg, , Germany - Full Time

Skills Needed
Ruby, Quality Assurance, Code Review, Automation Tools, Ai/Ml, Ci/Cd, Docker, Debugging, Documentation, Coding, Data Annotation, Benchmarking, Scripting, Test Integration, Defect Documentation, Complex Reasoning, Generative Ai

Experience Required
Minimum 2 year(s)

Freelance Software Developer (Java) - Quality Assurance (AI Trainer) at Mindrift

, , Germany - Full Time

Skills Needed
Java, Junit 5, Testng, Mockito, Testcontainers, Maven, Gradle, Intellij Idea, Jenkins, Github Actions, Gitlab Ci, Spring Boot, Spring Data, Spring Security, Jpa, Hibernate

Specialization
Candidates must have at least 3 years of professional experience in Java 17+ and an advanced level of English proficiency. A Bachelor's or Master's degree in a relevant field is required.

Experience Required
Minimum 2 year(s)

Data Scientist - Quick Commerce at Delivery Hero

Berlin, , Germany - Full Time

Skills Needed
Data Science, Machine Learning, Natural Language Processing, Classification, Recommendation Systems, Large Language Models, Python, Model Validation, A/B Testing, Cross Functional Collaboration, Statistical Analysis, Content Automation, Product Categorization, Ai Driven Assortment, Deep Learning, Agentic Frameworks

Specialization
Candidates should have 3+ years of industry experience in Data Science and Machine Learning, particularly in applied ML, NLP, and recommendation systems. Strong coding skills in Python and experience with large-scale ML model validation and experimentation are essential.

Experience Required
Minimum 5 year(s)

Fullstack Engineer (with Backend focus) (f/m/x) at CarOnSale

Berlin, , Germany - Full Time

Skills Needed
Backend Engineering, Typescript, Node.Js, Nestjs, Postgresql, Agile Practices, Scrum, Kanban, Jira, Confluence, Team Collaboration, Clean Code, Performance Optimization, Technical Planning, Knowledge Sharing, Relationship Building

Specialization
Candidates should have at least 4 years of experience in backend engineering and be proficient in TypeScript and related technologies. Familiarity with agile practices and excellent communication skills are also required.

Experience Required
Minimum 5 year(s)

Pre-sales Technical Support Engineer - REMOTE at Jobgether

, , Germany - Full Time

Skills Needed
Pre Sales Technical Support, Photovoltaic Industries, Project Management, Technical Training, Customer Engagement, Marketing Initiatives, Communication Skills, Written Expression, Observational Skills, Adaptability, Team Spirit, English Proficiency

Specialization
Candidates must have a bachelor's degree and at least 5 years of experience in PV and energy storage inverter technical support. Strong communication skills and familiarity with project management processes are also required.

Experience Required
Minimum 5 year(s)

Mitarbeiter (m/w/d) im Vertriebsinnendienst at Praxis für Kinder- und Jugendhilfe Iris Schneider GmbH

Siegburg, North Rhine-Westphalia, Germany - Full Time

Skills Needed
Contract Management, Budgeting, Cost Analysis, Project Management, Negotiation Skills, Analytical Thinking, Team Collaboration, Communication Skills, Attention To Detail, Discretion, Time Management, Ms Office Proficiency, Social Law Knowledge, Public Procurement Knowledge, Self Responsibility, Structured Work Approach

Specialization
Candidates should have a completed degree in relevant fields or comparable professional experience, along with substantial experience in contract management and budgeting, preferably in the social or healthcare sectors. Knowledge of procurement law and social law is advantageous.

Experience Required
Minimum 2 year(s)

Mechanical Engineer with Python Experience - Freelance AI Trainer at Mindrift

Berlin, , Germany - Full Time

Skills Needed
Mechanical Engineering, Python, Thermodynamics, Heat Transfer, Fluid Mechanics, Solid Mechanics, Dynamics, Vibration, Mechanical Design, Machine Elements, Fea, Cfd, Computational Mechanics, Manufacturing Processes, Cad, Cae, Thermal Systems

Specialization
Candidates must have a Bachelor’s, Master’s, or PhD in Mechanical Engineering or a closely related field. Strong Python proficiency and at least 3 years of relevant experience in various mechanical engineering disciplines are required.

Experience Required
Minimum 5 year(s)

Truck driver in Germany – with hello jobs! at hello jobs

Nettetal, North Rhine-Westphalia, Germany - Full Time

Skills Needed
Eu Driving License, Commercial Freight Transport, Route Planning, Load Control, Vehicle Maintenance, Language Skills

Specialization
Candidates must possess an EU driving license class C+E with a valid Code 95 and driver card, along with at least two years of experience in commercial freight transport. Legal residence within the EU and language skills in German or English are also required.

Experience Required
Minimum 2 year(s)

Technical Poultry Specialist (m/w/d)-1-Jahres-Vertrag at DSM

Bramsche, Lower Saxony, Germany - Full Time

Skills Needed
Teamwork, Communication, Flexibility, Proactivity, Creativity, Poultry Nutrition, Health Specialist, Sales Strategy, Field Trials, Customer Engagement, Product Training, Market Knowledge

Specialization
Candidates should have commercial experience as a nutrition or health specialist, ideally with over 5 years in the feed/additive industry. Strong knowledge of the poultry market and excellent communication skills in German are also required.

Experience Required
Minimum 5 year(s)

Mitarbeiter Küche & Kasse (m/w/d) / Team Member Kitchen & Service - Burgerm at Burgermeister

Erfurt, Thuringia, Germany - Full Time

Skills Needed
Teamwork, Flexibility, Cleanliness, Reliability, Customer Service, Cooking, Food Preparation, Hygiene Standards

Specialization
Candidates should have some experience in the kitchen or in system catering, along with strong teamwork skills and a willingness to contribute to a motivated team. A high level of cleanliness, reliability, and customer service orientation is also required.

Analytical Scientist at CarboCode

Constance, Baden-Württemberg, Germany - Full Time

Skills Needed
Analytical Support, Laboratory Equipment Maintenance, Chromatography Analyses, Classical Chemistry Methods, Titrations, Spectrophotometric Analyses, Hs Gc Fid, Hplc Cad, Elsd, Analytical Method Development, Chromeleon, Openlab, Labsolutions, English Communication, Proactive Working, Team Collaboration

Specialization
Candidates should have a B.Sc. or M.Sc. in Analytical Chemistry, Chemistry, or Biochemistry, with more than 1 year of experience in an analytical department. Familiarity with specific analytical techniques and software is desirable.

VERKÄUFER/IN TEILZEIT (M/W/D) – Münsingen (18,5-28 Std) at JYSK

Münsingen, Baden-Württemberg, Germany - Full Time

Skills Needed
Sales, Customer Service, Teamwork, Flexibility, Initiative, Communication, Store Maintenance, Product Knowledge

Specialization
You should be outgoing, take initiative, and enjoy engaging with customers. A passion for sales and the ability to work collaboratively with your team are essential.

Junior Java Script Engineer (f/m/x) at AUTO1 Group

Berlin, , Germany - Full Time

Skills Needed
Javascript, Google Apps Script, Sql, Git, Python, Automation, Apis, Data Retrieval, Analytical Skills, Self Organisation, Communication Skills, Process Improvement, Problem Solving, Team Collaboration, Decision Making, Fast Learner

Specialization
Candidates should have first relevant experiences in working with JavaScript, with knowledge of SQL and version control systems being a plus. Good self-organisation skills and a passion for automation are essential, along with good English communication skills.

Abteilungsleiter Verkauf Lebensmittel & Non Food at METRO/MAKRO

Böblingen, Baden-Württemberg, Germany - Full Time

Skills Needed
Team Leadership, Customer Service, Product Management, Cost Management, Sales Strategy, Process Optimization, Communication Skills, Ms Office Proficiency, Organizational Skills, Stress Management, Retail Experience, Training And Development, Problem Solving, Empathy, Time Management, Adaptability

Specialization
Candidates should have completed training in retail and possess leadership experience in a similar role. Strong customer orientation, organizational skills, and the ability to work in a two-shift system are also required.

Experience Required
Minimum 2 year(s)

Front-Office Supervisor at The Cloud One

Frankfurt, Hesse, Germany - Full Time

Skills Needed
Guest Experience, Front Office Operations, Team Leadership, Reservations Management, Revenue Optimization, Scheduling, Quality Management, Staff Training, Problem Resolution, Hotel Policies Compliance, Bar/Lounge Assistance, Customer Orientation, Interpersonal Skills, Detail Orientation, Multitasking

Specialization
Candidates must possess a completed vocational training in the hotel or hospitality industry and have a minimum of two years of Front Office experience, including proven leadership in a supervisory role. Fluency in both English and German is required, along with proficiency in hotel management software like Opera.

Experience Required
Minimum 2 year(s)

AUSHILFE MÖBELAUFBAU ALS MINIJOB (M/W/D) - Neumünster Gartenstadt at JYSK

Neumünster, Schleswig-Holstein, Germany - Full Time

Skills Needed
Handy Skills, Physical Endurance, German Language Proficiency, Efficient Work, Goal Oriented, Furniture Assembly

Specialization
Candidates should possess handy skills and physical endurance, along with good German language skills. The ability to work efficiently and enjoy furniture assembly is also important.

Freelance Software Developer (Ruby) / Quality Assurance (AI Trainer) at Mindrift

Munich, Bavaria, Germany -

Full Time

Start Date

Immediate

Expiry Date

30 Mar, 26

Salary

50.0

Posted On

30 Dec, 25

Experience

2 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Ruby, Quality Assurance, Code Review, Automation Tools, AI/ML, CI/CD, Docker, Scripting, Defect Documentation, Profiling, Debugging, Test Integration, Code Generation, Data Annotation, Collaboration, Adaptability

Industry

technology;Information and Internet

Description

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please provide your resume in English and specify your proficiency level. At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. What we do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About the Role GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you’ll have the opportunity to collaborate on these projects. Although every project is unique, you might typically: Code generation and code review Prompt evaluation and complex data annotation Training and evaluation of large language models Benchmarking and agent-based code execution in sandboxed environments Working across multiple programming languages (Python, JavaScript/TypeScript, Rust, SQL, etc.) Adapting guidelines for new domains and use cases Following project-specific rubrics and requirements Collaborating with project leads, solution engineers, and supply managers on complex or experimental projects Note: Flexibility and quick adaptation to new requirements are essential. How to get started Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you’ll help shape the future of AI while ensuring technology benefits everyone. You hold a Bachelor's or Master's Degree in Software Development, Computer Science, or other related fields. You have at least 3 years of professional experience, including hands-on experience with Ruby testing frameworks (RSpec, Minitest, Capybara) and automation tools. Your level of English is advanced (C1) or above. Proficient with code review, quality analysis, and identifying/fixing code smells, anti-patterns, and test gaps in Ruby codebases. Experience with test integration in CI/CD environments (GitHub Actions, GitLab CI, Jenkins, or CircleCI) Experience using, integrating, or tutoring others with AI/ML or LLM-powered testing/coding solutions in Ruby projects. Familiarity with containerization technologies (Docker), automated deployment, and scripting within Ruby environments. Strong skills in defect documentation, profiling, and debugging Ruby applications. Experience generating and maintaining high-quality documentation for tests, bugs, and technical debt. Hackathon or competitive coding experience is a plus. You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines. Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge. Why this freelance opportunity might be a great fit for you? Get paid for your expertise, with rates that can go up to $50/hour depending on your skills, experience, and project needs. Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments. Work on advanced AI projects and gain valuable experience that enhances your portfolio. Influence how future AI models understand and communicate in your field of expertise.

How To Apply:

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Responsibilities

As an AI Tutor in Coding, you will collaborate on projects involving code generation, code review, and training large language models. You will also adapt guidelines for new domains and work with project leads on complex projects.

Freelance Software Developer (Ruby) / Quality Assurance (AI Trainer) at Mindrift

Munich, Bavaria, Germany - Full Time

Experience Required
Minimum 2 year(s)

Backend Developer (m/w/d) at P.A.C. GmbH

Schweinfurt, Bavaria, Germany - Full Time

Experience Required
Minimum 2 year(s)

Partner Solution Sales -SME at Microsoft

Santanyí, Balearic Islands, Germany - Full Time

Specialization
Candidates must have a Bachelor's Degree and solid experience in sales, partner sales, or business development. Fluency in German and English is required.

Experience Required
Minimum 2 year(s)

Senior Document Controller (m/f/d)- Data Centres at Turner Townsend

Frankfurt, Hesse, Germany - Full Time

Experience Required
Minimum 5 year(s)

Freelance Software Developer (Ruby) / Quality Assurance (AI Trainer) at Mindrift

Hamburg, , Germany - Full Time

Experience Required
Minimum 2 year(s)

Freelance Software Developer (Java) - Quality Assurance (AI Trainer) at Mindrift

, , Germany - Full Time

Skills Needed
Java, Junit 5, Testng, Mockito, Testcontainers, Maven, Gradle, Intellij Idea, Jenkins, Github Actions, Gitlab Ci, Spring Boot, Spring Data, Spring Security, Jpa, Hibernate

Experience Required
Minimum 2 year(s)

Data Scientist - Quick Commerce at Delivery Hero

Berlin, , Germany - Full Time

Experience Required
Minimum 5 year(s)

Fullstack Engineer (with Backend focus) (f/m/x) at CarOnSale

Berlin, , Germany - Full Time

Experience Required
Minimum 5 year(s)

Pre-sales Technical Support Engineer - REMOTE at Jobgether

, , Germany - Full Time

Experience Required
Minimum 5 year(s)

Mitarbeiter (m/w/d) im Vertriebsinnendienst at Praxis für Kinder- und Jugendhilfe Iris Schneider GmbH

Siegburg, North Rhine-Westphalia, Germany - Full Time

Experience Required
Minimum 2 year(s)

Mechanical Engineer with Python Experience - Freelance AI Trainer at Mindrift

Berlin, , Germany - Full Time

Experience Required
Minimum 5 year(s)

Truck driver in Germany – with hello jobs! at hello jobs

Nettetal, North Rhine-Westphalia, Germany - Full Time

Skills Needed
Eu Driving License, Commercial Freight Transport, Route Planning, Load Control, Vehicle Maintenance, Language Skills

Experience Required
Minimum 2 year(s)

Technical Poultry Specialist (m/w/d)-1-Jahres-Vertrag at DSM

Bramsche, Lower Saxony, Germany - Full Time

Experience Required
Minimum 5 year(s)

Mitarbeiter Küche & Kasse (m/w/d) / Team Member Kitchen & Service - Burgerm at Burgermeister

Erfurt, Thuringia, Germany - Full Time

Skills Needed
Teamwork, Flexibility, Cleanliness, Reliability, Customer Service, Cooking, Food Preparation, Hygiene Standards

Analytical Scientist at CarboCode

Constance, Baden-Württemberg, Germany - Full Time

VERKÄUFER/IN TEILZEIT (M/W/D) – Münsingen (18,5-28 Std) at JYSK

Münsingen, Baden-Württemberg, Germany - Full Time

Skills Needed
Sales, Customer Service, Teamwork, Flexibility, Initiative, Communication, Store Maintenance, Product Knowledge

Specialization
You should be outgoing, take initiative, and enjoy engaging with customers. A passion for sales and the ability to work collaboratively with your team are essential.

Junior Java Script Engineer (f/m/x) at AUTO1 Group

Berlin, , Germany - Full Time

Abteilungsleiter Verkauf Lebensmittel & Non Food at METRO/MAKRO

Böblingen, Baden-Württemberg, Germany - Full Time

Experience Required
Minimum 2 year(s)

Front-Office Supervisor at The Cloud One

Frankfurt, Hesse, Germany - Full Time

Experience Required
Minimum 2 year(s)

AUSHILFE MÖBELAUFBAU ALS MINIJOB (M/W/D) - Neumünster Gartenstadt at JYSK

Neumünster, Schleswig-Holstein, Germany - Full Time

Skills Needed
Handy Skills, Physical Endurance, German Language Proficiency, Efficient Work, Goal Oriented, Furniture Assembly

Specialization
Candidates should possess handy skills and physical endurance, along with good German language skills. The ability to work efficiently and enjoy furniture assembly is also important.