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Backend Engineer (Python - Flask) at CROWDCONSULTANTS
Berlin, , Germany - Full Time
Skills Needed
Python, Flask, Fastapi, Genai, Rag, Llm, Prompting, Guardrails, Distributed Systems, Observability, Caching, Redis, Microservices, Monitoring, Latency Improvement, Ownership
Specialization
Candidates must possess strong hands-on experience developing backend systems using Python frameworks like Flask or FastAPI, coupled with proven experience building and operating GenAI applications in production. Solid understanding of RAG architectures, LLM performance tuning, and knowledge of distributed systems are essential requirements.
Experience Required
Minimum 5 year(s)
Restaurant Growth Partner at Burjline Builders
Berlin, , Germany - Full Time
Skills Needed
Business Development, Relationship Management, Hospitality Sales, Restaurant Operations, Onboarding, Commercial Negotiation, Network Building, Strategic Partnerships
Specialization
Candidates must have strong existing relationships within the German hospitality and restaurant ecosystem. Experience in restaurant operations, consulting, or food distribution is highly valued over formal sales experience.
Experience Required
Minimum 2 year(s)
Dualer Student (m/w/d) B.Sc. Informatik - HWR Berlin at CHECK24
Berlin, , Germany - Full Time
Skills Needed
Programming, Ai, Chatbots, Data Driven Solutions, Software Development, Kpi Dashboards, Process Optimization, Object Oriented Programming, Java, C#, Python, Analytical Thinking, Problem Solving
Specialization
Candidates must have a high school diploma or equivalent with good to very good grades, especially in Mathematics and Computer Science, along with initial knowledge in at least one object-oriented programming language. Strong German language skills and enthusiasm for AI, automation, and digital innovation are also required.
Staff Software Engineer, Kafka & Kotlin - (Logistics, Customer Choice) at Delivery Hero
Berlin, , Germany - Full Time
Skills Needed
Kafka, Kotlin, Jvm Based Technologies, Distributed Systems, Microservice Architectures, Event Driven Topologies, Observability, Cloud Infrastructure, Networking, Python, Machine Learning, Technical Leadership, Architecture Design, Reliability Engineering
Specialization
Candidates must possess a very deep understanding and proven experience with JVM-based technologies, alongside experience in complex distributed systems, microservice architectures, and event-driven topologies utilizing Kafka and observability tools. A deep understanding of the software stack, cloud infrastructure, and networking is also required, along with the ability to contribute autonomously and communicate complex concepts clearly.
Experience Required
Minimum 10 year(s)
Senior Backend Engineer - ZEOS (all genders) at Zalando
Berlin, , Germany - Full Time
Skills Needed
Java, Spring Boot, Microservices, Rest Apis, Aws, Kubernetes, Gradle, Ci/Cd, Distributed Systems, Automated Testing, Observability, English Proficiency
Specialization
Requires a seasoned Java developer with deep expertise in Spring Boot, Microservice architectures, and cloud-native deployment using AWS and Kubernetes. Candidates should be proficient in CI/CD pipelines and possess strong communication skills for agile collaboration.
Experience Required
Minimum 5 year(s)
Senior Data Engineer at Tripledot
Berlin, , Germany - Full Time
Skills Needed
Sql, Python, Airflow, Prefect, Dagster, Trino, Bq, Redshift, Spark, Kafka, Flink, Aws, Gcp, Docker, Kubernetes, Data Modelling
Specialization
Candidates need over 4 years of experience as a Data Engineer, ideally in gaming or mobile apps, with strong proficiency in SQL and Python, and hands-on experience with data pipeline orchestration tools like Airflow. Solid understanding of cloud infrastructure (mainly AWS) and big data technologies such as Spark is required, along with strong Data Modelling skills.
Experience Required
Minimum 2 year(s)
Verkäufer m/w/d 10-20h at HM Group
Berlin, , Germany - Full Time
Skills Needed
Customer Orientation, Adaptability, Flexibility, Proactivity, Communication Skills, Active Listening, Willingness To Learn, Brand Passion, Retail Operations, Fashion Consulting
Specialization
Candidates should be customer-oriented, flexible for evening and weekend work, and possess strong communication skills. Previous experience in retail and knowledge of fashion trends is desirable but not mandatory.
Studentische*r Mitarbeiter*in (m/w/d) im Versand at Amadeu Antonio Stiftung
Berlin, , Germany - Full Time
Skills Needed
Microsoft Excel, Microsoft Word, Microsoft Outlook, Database Management, German Language Proficiency, Order Processing, Packaging, Data Analysis, Customer Service, Data Privacy Awareness
Specialization
Candidates must be currently enrolled students with a reliable, careful way of working and physical resilience. Proficiency in German and familiarity with Microsoft Office tools are required.
Servicekraft / Kellner (m/w/d) für Gastronomie am Alexanderplatz at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Guest Care, Guest Consulting, Serving Food And Drinks, Clearing Tables, Billing And Cashiering, Menu Knowledge, German Language, English Language, Flexibility, Teamwork, Interpersonal Skills, Hospitality
Specialization
Requires training in gastronomy/hospitality or relevant professional experience. Candidates must have good German and English skills and be willing to work evenings and weekends.
Servicehelfer / Runner / Service Runner (m/w/d) für Steakclub am Alexanderp at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
German Language, English Language, Guest Relations, Hospitality, Food Service, Beverage Service, Teamwork, Flexibility, Communication Skills, Physical Fitness
Specialization
Candidates should have good German and English skills, a charming demeanor, and physical fitness. Willingness to work evenings and weekends is required.
F&B and Event Service Expert at TOWNEPLACE SUITES BY MARRIOTT SAN DIEGO AIRPORT LIBERTY STATION
Berlin, , Germany - Full Time
Skills Needed
Food And Beverage Service, Event Management, Customer Service, Table Setting, Communication, Teamwork, Safety Compliance, Professional Appearance, Attention To Detail, Time Management
Specialization
Candidates must have at least one year of related work experience and a high school diploma or G.E.D. equivalent. The role requires the ability to perform physical tasks such as standing for extended periods and lifting up to 25 pounds.
Commis I at TOWNEPLACE SUITES BY MARRIOTT SAN DIEGO AIRPORT LIBERTY STATION
Berlin, , Germany - Full Time
Skills Needed
Food Preparation, Cooking, Kitchen Safety, Sanitation, Knife Skills, Food Quality Monitoring, Recipe Adherence, Teamwork, Communication, Time Management, Equipment Operation, Portion Control
Specialization
Candidates must have at least one year of related work experience and a high school diploma or G.E.D. equivalent. The role requires the ability to perform physical tasks such as standing for long periods and lifting up to 25 pounds.
Direktionsbeauftragter (m/w/d) Sachversicherungen - Region Berlin at ATLAS
Berlin, Brandenburg, Germany - Full Time
Skills Needed
Property Insurance Expertise, Sales Support, Customer Consulting, Coaching, Strategic Implementation, Knowledge Transfer, Insurance Sales, Banking Sales, Teamwork, Self Organization
Specialization
Requires a qualification as an insurance clerk or a degree in insurance or economics. Proven experience in property insurance sales and a coaching mentality are essential.
Experience Required
Minimum 2 year(s)
People Coordinator (mit Bosnisch-/Serbischkenntnissen) (m/w/d) at AUTO1 Group
Berlin, , Germany - Full Time
Skills Needed
Bosnian Language, Serbian Language, German Language, Onboarding, Hr Administration, Visa Coordination, Intercultural Communication, Employee Integration, Translation, Process Structuring, Empathy, Moderation
Specialization
Fluency in Bosnian or Serbian and German is required, with English being a plus. Experience in HR or administration is ideal, though motivated career changers are welcome, provided they have a willingness to travel between Berlin, Hemau, and Ketzin.
Sicherheitsmitarbeiter (m/w/d) im Pforten- & Empfangsdienst at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Reception Management, Security Patrolling, Visitor Management, Telephone Etiquette, English Proficiency, German Proficiency, It Skills, Customer Service, Documentation, First Aid
Specialization
Candidates must have a §34a GewO certification or be willing to obtain one, along with a clean extended certificate of good conduct. Proficiency in German and English, a professional appearance, and willingness to work day and night shifts are required.
Teamleiter für Videotechnik / Alarmanlagen (m/w/d) at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Project Planning, Project Management, Security Technology, Resource Planning, Technical Support Coordination, Material Planning, Customer Training, Electrical Engineering, Digital Application Proficiency, Construction Project Management
Specialization
Requires a completed electrical vocational training or extensive experience as a technician, specifically in construction projects or electrical system installation. Must possess strong technical understanding of security systems and a valid Class B driver's license.
Experience Required
Minimum 5 year(s)
Initiativbewerbung bei AVIO TSE GmbH at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Technical Problem Solving, Organization, Teamwork, Security Technology, Technical Maintenance
Specialization
Candidates should be technically minded and organized team players. A technical vocational qualification is an advantage but not strictly required.
Sicherheitsmitarbeiter (m/w/d) für Gemeinschaftsunterkunft at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Security Management, Access Control, Object Protection, German Language Proficiency, Interpersonal Skills, Reliability, Self Confidence
Specialization
Candidates must possess IHK certification of expertise according to §34a GewO, a clean extended certificate of good conduct, and proof of measles vaccination. Good written and spoken German skills are required.
Sicherheitsmitarbeiter (m/w/d) für Wohnheim in Schönefeld at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Building Surveillance, Patrolling, Reporting, Emergency Management, Access Control, German Language Proficiency, Interpersonal Skills, Reliability
Specialization
Candidates must possess an IHK certification of expertise according to §34a GewO and a clean extended certificate of good conduct. Proof of measles vaccination is required, and first aid or fire safety certificates are preferred.
Praktikant (m/w/d) am Standort Berlin at PP Pllath Partners Rechtsanwlte und Steuerberater
Berlin, , Germany - Full Time
Skills Needed
Legal Research, Contract Drafting, Legal Consulting, English Proficiency, Legal Writing, Economic Analysis, Tax Law Knowledge
Specialization
Candidates should have a strong interest in economic and tax contexts and a structured, independent way of working. Good linguistic expression and proficiency in English are required.
Backend Engineer (Python - Flask) at CROWDCONSULTANTS
Berlin, , Germany -
Full Time

Start Date

Immediate

Expiry Date

16 Jun, 26

Salary

0.0

Posted On

18 Mar, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

No

Skills

Python, Flask, FastAPI, GenAI, RAG, LLM, Prompting, Guardrails, Distributed Systems, Observability, Caching, Redis, Microservices, Monitoring, Latency Improvement, Ownership

Industry

Business Consulting and Services

Description
YOUR MISSION Own the end-to-end development and operation of GenAI solutions in production, delivering scalable, reliable, and high-performance applications within the industrial and manufacturing sector Translate business and operational needs into GenAI use cases Design and evolve RAG-based solutions, continuously improving retrieval quality, grounding, and response relevance Increase trust and usability of GenAI systems Implement agent based workflows and orchestration systems Ensure system stability and performance in production by monitoring, identifying bottlenecks, and improving latency and reliability Collaborate closely with platform and engineering teams to integrate and scale GenAI capabilities across systems YOUR EXPERIENCE & TALENTS Strong hands-on experience developing backend systems in Python using frameworks such as FastAPI or Flask Proven experience building and operating GenAI applications in production environments Solid understanding of RAG architectures end-to-end, including embeddings, retrieval strategies, and grounding techniques Experience improving LLM performance through prompting, evaluation frameworks, guardrails, and output validation Good knowledge of distributed systems, including observability, failure handling, and caching (e.g., Redis) Experience working in microservice-based environments and collaborating across cross-functional engineering teams Ability to take ownership and drive measurable improvements in system quality, performance, and stability Strong problem solving and communication skills, with the ability to explain complex topics clearly Excellent English (spoken and written); German or Polish is a strong plus BENEFITS OFFERED BY CROWDCONSULTANTS Immediate start on a high-impact agile transformation initiative Initial 3-month contract, with the possibility to extend Remote setup, with availability for core ceremonies in Central European Time Occasional travel when required Opportunity to work closely with delivery teams and leadership to create measurable, sustainable improvements PERFECT MATCH? We look forward to receiving your application! QUESTIONS? Please contact us at: +49 30 233 291 740 RECOMMENDATIONS? We’ll reward the successful placement of your recommendation with EUR 1000
Responsibilities
The primary mission involves owning the end-to-end development and operation of GenAI solutions in production, focusing on scalable, reliable applications within the industrial sector. This includes designing RAG-based solutions, implementing agent workflows, and ensuring system stability through monitoring and performance improvement.
Backend Engineer (Python - Flask) at CROWDCONSULTANTS
Berlin, , Germany - Full Time
Skills Needed
Python, Flask, Fastapi, Genai, Rag, Llm, Prompting, Guardrails, Distributed Systems, Observability, Caching, Redis, Microservices, Monitoring, Latency Improvement, Ownership
Specialization
Candidates must possess strong hands-on experience developing backend systems using Python frameworks like Flask or FastAPI, coupled with proven experience building and operating GenAI applications in production. Solid understanding of RAG architectures, LLM performance tuning, and knowledge of distributed systems are essential requirements.
Experience Required
Minimum 5 year(s)
Restaurant Growth Partner at Burjline Builders
Berlin, , Germany - Full Time
Skills Needed
Business Development, Relationship Management, Hospitality Sales, Restaurant Operations, Onboarding, Commercial Negotiation, Network Building, Strategic Partnerships
Specialization
Candidates must have strong existing relationships within the German hospitality and restaurant ecosystem. Experience in restaurant operations, consulting, or food distribution is highly valued over formal sales experience.
Experience Required
Minimum 2 year(s)
Dualer Student (m/w/d) B.Sc. Informatik - HWR Berlin at CHECK24
Berlin, , Germany - Full Time
Skills Needed
Programming, Ai, Chatbots, Data Driven Solutions, Software Development, Kpi Dashboards, Process Optimization, Object Oriented Programming, Java, C#, Python, Analytical Thinking, Problem Solving
Specialization
Candidates must have a high school diploma or equivalent with good to very good grades, especially in Mathematics and Computer Science, along with initial knowledge in at least one object-oriented programming language. Strong German language skills and enthusiasm for AI, automation, and digital innovation are also required.
Staff Software Engineer, Kafka & Kotlin - (Logistics, Customer Choice) at Delivery Hero
Berlin, , Germany - Full Time
Skills Needed
Kafka, Kotlin, Jvm Based Technologies, Distributed Systems, Microservice Architectures, Event Driven Topologies, Observability, Cloud Infrastructure, Networking, Python, Machine Learning, Technical Leadership, Architecture Design, Reliability Engineering
Specialization
Candidates must possess a very deep understanding and proven experience with JVM-based technologies, alongside experience in complex distributed systems, microservice architectures, and event-driven topologies utilizing Kafka and observability tools. A deep understanding of the software stack, cloud infrastructure, and networking is also required, along with the ability to contribute autonomously and communicate complex concepts clearly.
Experience Required
Minimum 10 year(s)
Senior Backend Engineer - ZEOS (all genders) at Zalando
Berlin, , Germany - Full Time
Skills Needed
Java, Spring Boot, Microservices, Rest Apis, Aws, Kubernetes, Gradle, Ci/Cd, Distributed Systems, Automated Testing, Observability, English Proficiency
Specialization
Requires a seasoned Java developer with deep expertise in Spring Boot, Microservice architectures, and cloud-native deployment using AWS and Kubernetes. Candidates should be proficient in CI/CD pipelines and possess strong communication skills for agile collaboration.
Experience Required
Minimum 5 year(s)
Senior Data Engineer at Tripledot
Berlin, , Germany - Full Time
Skills Needed
Sql, Python, Airflow, Prefect, Dagster, Trino, Bq, Redshift, Spark, Kafka, Flink, Aws, Gcp, Docker, Kubernetes, Data Modelling
Specialization
Candidates need over 4 years of experience as a Data Engineer, ideally in gaming or mobile apps, with strong proficiency in SQL and Python, and hands-on experience with data pipeline orchestration tools like Airflow. Solid understanding of cloud infrastructure (mainly AWS) and big data technologies such as Spark is required, along with strong Data Modelling skills.
Experience Required
Minimum 2 year(s)
Verkäufer m/w/d 10-20h at HM Group
Berlin, , Germany - Full Time
Skills Needed
Customer Orientation, Adaptability, Flexibility, Proactivity, Communication Skills, Active Listening, Willingness To Learn, Brand Passion, Retail Operations, Fashion Consulting
Specialization
Candidates should be customer-oriented, flexible for evening and weekend work, and possess strong communication skills. Previous experience in retail and knowledge of fashion trends is desirable but not mandatory.
Studentische*r Mitarbeiter*in (m/w/d) im Versand at Amadeu Antonio Stiftung
Berlin, , Germany - Full Time
Skills Needed
Microsoft Excel, Microsoft Word, Microsoft Outlook, Database Management, German Language Proficiency, Order Processing, Packaging, Data Analysis, Customer Service, Data Privacy Awareness
Specialization
Candidates must be currently enrolled students with a reliable, careful way of working and physical resilience. Proficiency in German and familiarity with Microsoft Office tools are required.
Servicekraft / Kellner (m/w/d) für Gastronomie am Alexanderplatz at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Guest Care, Guest Consulting, Serving Food And Drinks, Clearing Tables, Billing And Cashiering, Menu Knowledge, German Language, English Language, Flexibility, Teamwork, Interpersonal Skills, Hospitality
Specialization
Requires training in gastronomy/hospitality or relevant professional experience. Candidates must have good German and English skills and be willing to work evenings and weekends.
Servicehelfer / Runner / Service Runner (m/w/d) für Steakclub am Alexanderp at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
German Language, English Language, Guest Relations, Hospitality, Food Service, Beverage Service, Teamwork, Flexibility, Communication Skills, Physical Fitness
Specialization
Candidates should have good German and English skills, a charming demeanor, and physical fitness. Willingness to work evenings and weekends is required.
F&B and Event Service Expert at TOWNEPLACE SUITES BY MARRIOTT SAN DIEGO AIRPORT LIBERTY STATION
Berlin, , Germany - Full Time
Skills Needed
Food And Beverage Service, Event Management, Customer Service, Table Setting, Communication, Teamwork, Safety Compliance, Professional Appearance, Attention To Detail, Time Management
Specialization
Candidates must have at least one year of related work experience and a high school diploma or G.E.D. equivalent. The role requires the ability to perform physical tasks such as standing for extended periods and lifting up to 25 pounds.
Commis I at TOWNEPLACE SUITES BY MARRIOTT SAN DIEGO AIRPORT LIBERTY STATION
Berlin, , Germany - Full Time
Skills Needed
Food Preparation, Cooking, Kitchen Safety, Sanitation, Knife Skills, Food Quality Monitoring, Recipe Adherence, Teamwork, Communication, Time Management, Equipment Operation, Portion Control
Specialization
Candidates must have at least one year of related work experience and a high school diploma or G.E.D. equivalent. The role requires the ability to perform physical tasks such as standing for long periods and lifting up to 25 pounds.
Direktionsbeauftragter (m/w/d) Sachversicherungen - Region Berlin at ATLAS
Berlin, Brandenburg, Germany - Full Time
Skills Needed
Property Insurance Expertise, Sales Support, Customer Consulting, Coaching, Strategic Implementation, Knowledge Transfer, Insurance Sales, Banking Sales, Teamwork, Self Organization
Specialization
Requires a qualification as an insurance clerk or a degree in insurance or economics. Proven experience in property insurance sales and a coaching mentality are essential.
Experience Required
Minimum 2 year(s)
People Coordinator (mit Bosnisch-/Serbischkenntnissen) (m/w/d) at AUTO1 Group
Berlin, , Germany - Full Time
Skills Needed
Bosnian Language, Serbian Language, German Language, Onboarding, Hr Administration, Visa Coordination, Intercultural Communication, Employee Integration, Translation, Process Structuring, Empathy, Moderation
Specialization
Fluency in Bosnian or Serbian and German is required, with English being a plus. Experience in HR or administration is ideal, though motivated career changers are welcome, provided they have a willingness to travel between Berlin, Hemau, and Ketzin.
Sicherheitsmitarbeiter (m/w/d) im Pforten- & Empfangsdienst at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Reception Management, Security Patrolling, Visitor Management, Telephone Etiquette, English Proficiency, German Proficiency, It Skills, Customer Service, Documentation, First Aid
Specialization
Candidates must have a §34a GewO certification or be willing to obtain one, along with a clean extended certificate of good conduct. Proficiency in German and English, a professional appearance, and willingness to work day and night shifts are required.
Teamleiter für Videotechnik / Alarmanlagen (m/w/d) at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Project Planning, Project Management, Security Technology, Resource Planning, Technical Support Coordination, Material Planning, Customer Training, Electrical Engineering, Digital Application Proficiency, Construction Project Management
Specialization
Requires a completed electrical vocational training or extensive experience as a technician, specifically in construction projects or electrical system installation. Must possess strong technical understanding of security systems and a valid Class B driver's license.
Experience Required
Minimum 5 year(s)
Initiativbewerbung bei AVIO TSE GmbH at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Technical Problem Solving, Organization, Teamwork, Security Technology, Technical Maintenance
Specialization
Candidates should be technically minded and organized team players. A technical vocational qualification is an advantage but not strictly required.
Sicherheitsmitarbeiter (m/w/d) für Gemeinschaftsunterkunft at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Security Management, Access Control, Object Protection, German Language Proficiency, Interpersonal Skills, Reliability, Self Confidence
Specialization
Candidates must possess IHK certification of expertise according to §34a GewO, a clean extended certificate of good conduct, and proof of measles vaccination. Good written and spoken German skills are required.
Sicherheitsmitarbeiter (m/w/d) für Wohnheim in Schönefeld at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Building Surveillance, Patrolling, Reporting, Emergency Management, Access Control, German Language Proficiency, Interpersonal Skills, Reliability
Specialization
Candidates must possess an IHK certification of expertise according to §34a GewO and a clean extended certificate of good conduct. Proof of measles vaccination is required, and first aid or fire safety certificates are preferred.
Praktikant (m/w/d) am Standort Berlin at PP Pllath Partners Rechtsanwlte und Steuerberater
Berlin, , Germany - Full Time
Skills Needed
Legal Research, Contract Drafting, Legal Consulting, English Proficiency, Legal Writing, Economic Analysis, Tax Law Knowledge
Specialization
Candidates should have a strong interest in economic and tax contexts and a structured, independent way of working. Good linguistic expression and proficiency in English are required.