Hire the Best Flask Developers & Programmers
in Germany

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Rating is 4.5 out of 5.
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Kunjan V.

Karlsruhe, Germany

$126/hr
5.0
67 jobs

๐Ÿš€Hi! I help startups go from demo โ†’ market-ready AI product - fast! I plug into your team and ship production ready features that customers love. ๐Ÿ† Top 1% (Expert-vetted) | 8+ years| 100% JSS | 35+ Delighted Clients | 18+ E2E Deployments ๐ŸŽฏ "๐˜’๐˜ถ๐˜ฏ๐˜ซ๐˜ข๐˜ฏ ๐˜ช๐˜ด ๐˜ข๐˜ฏ ๐˜ข๐˜ฃ๐˜ด๐˜ฐ๐˜ญ๐˜ถ๐˜ต๐˜ฆ ๐˜จ๐˜ฆ๐˜ฎ! ๐˜š๐˜ฉ๐˜ฆ ๐˜ธ๐˜ฆ๐˜ฏ๐˜ต ๐˜ข๐˜ฃ๐˜ฐ๐˜ท๐˜ฆ ๐˜ข๐˜ฏ๐˜ฅ ๐˜ฃ๐˜ฆ๐˜บ๐˜ฐ๐˜ฏ๐˜ฅ. ๐˜›๐˜ฆ๐˜ข๐˜ฎ๐˜ช๐˜ฏ๐˜จ ๐˜ถ๐˜ฑ ๐˜ธ๐˜ช๐˜ต๐˜ฉ ๐˜ฉ๐˜ฆ๐˜ณ, ๐˜ธ๐˜ฆ ๐˜ฃ๐˜ถ๐˜ช๐˜ญ๐˜ต ๐˜ณ๐˜ฐ๐˜ฃ๐˜ถ๐˜ด๐˜ต ๐˜ฅ๐˜ข๐˜ต๐˜ข ๐˜ฑ๐˜ช๐˜ฑ๐˜ฆ๐˜ญ๐˜ช๐˜ฏ๐˜ฆ๐˜ด, ๐˜ฐ๐˜ฑ๐˜ต๐˜ช๐˜ฎ๐˜ช๐˜ป๐˜ฆ๐˜ฅ ๐˜“๐˜“๐˜”๐˜–๐˜ฑ๐˜ด, ๐˜ต๐˜ณ๐˜ข๐˜ฏ๐˜ด๐˜ช๐˜ต๐˜ช๐˜ฐ๐˜ฏ๐˜ฆ๐˜ฅ ๐˜ง๐˜ณ๐˜ฐ๐˜ฎ ๐˜ง๐˜ข๐˜ฏ๐˜ค๐˜บ ๐˜ฅ๐˜ฆ๐˜ฎ๐˜ฐ๐˜ด ๐˜ต๐˜ฐ ๐˜ข ๐˜ด๐˜ค๐˜ข๐˜ญ๐˜ข๐˜ฃ๐˜ญ๐˜ฆ ๐˜ˆ๐˜ ๐˜ฑ๐˜ณ๐˜ฐ๐˜ฅ๐˜ถ๐˜ค๐˜ต ๐˜ต๐˜ฉ๐˜ข๐˜ต 1000๐˜ด ๐˜ฐ๐˜ง ๐˜ค๐˜ถ๐˜ด๐˜ต๐˜ฐ๐˜ฎ๐˜ฆ๐˜ณ๐˜ด ๐˜ญ๐˜ฐ๐˜ท๐˜ฆ!" - CTO, Healthcare startup, SF (1 of many 5-star reviews) Over 7+ years on Upwork, I've helped startups and enterprises across sectors - Marketing, Healthcare, Law, Education, and Agribusiness - translate AI into measurable business ROI by building the right data and ML foundations. Whether collaborating with 1000+ employee companies or lean 2-person startups, I adapt to the teamโ€™s needs: reporting directly to CEOs or CTOs as an AI/Data Lead, or integrating as a hands-on contributor alongside in-house developers. I bring a โ€œbrain-for-hireโ€ + hands-on mindset - tackling strategic and technical challenges with equal enthusiasm, always focused on delivering outcomes, not overhead. ๐Ÿ‘€ See 8+ Case Studies & Demos: totemxlabs dot com/#casestudies ๐ŸŽฏ Recent Success Stories (2024-2025) 1. Graph RAG for Marketing & Strategic decisions Implemented knowledge graph-powered RAG systems using Neo4j for marketing intelligence and SEO optimization - enabling sophisticated knowledge checks and relationship-based insights that traditional RAG cannot achieve. 2. Workplace Safety Vision System Deployed end-to-end computer vision solution for workplace health and safety compliance - real-time hazard detection, PPE verification, and automated incident reporting. 3. Healthcare Diagnostic Knowledge Graph Developed evidence-based diagnostic system using knowledge graphs for healthcare - producing auditable, traceable diagnostic reasoning paths that meet clinical documentation standards. ๐Ÿงญ My Proven AI Product Process: Discovery: Identify high-ROI AI opportunities aligned with your goals. Data Assessment: Evaluate data availability, relevance, quality. Solution Design: Define user journeys, tech stacks, evaluation frameworks. Development: Optimized sprints for cost-effective, robust AI solutions (min. tech debt). Deployment: Scalable architectures, rigorous testing for production readiness. ๐Ÿ’ก Technical Expertise: GenAI & LLMs: LLM Ops (Fine-tuning, Prompt Engineering, RAG, Agentic Workflow, Multi-agent systems, Memory Management), LangChain, LangGraph, LlamaIndex, LangServe; Vector Search (Pinecone, Weaviate, Chroma, FAISS). AI/ML & MLOps: Predictive Analytics, Recommender Systems, RLHF; Model Lifecycle, MLflow, Feature Stores; PyTorch, TensorFlow, Scikit-learn. Cloud & Infra (Multi-cloud): AWS (Lambda, ECS, ElastiCache, DynamoDB, API Gateway), Azure, GCP, Vertex AI, SageMaker; Docker, Kubernetes (EKS/GKE). Software & Data Eng: Python (expert), Fullstack; FastAPI, Flask, Django; REST, GraphQL, OpenAPI, AsyncIO; Batch/Stream (Airflow, Spark, Kafka), Pandas, Polars, dbt; ETL/ELT. DBs/Arch/DevOps: PostgreSQL, MySQL, DynamoDB, MongoDB, Vector DBs (Pinecone, Weaviate, ChromaDB), Neo4j; Microservices, GitHub Actions, Terraform, CI/CD pipelines. ๐Ÿค Why Partner With Me? I help architect and develop E2E AI solutions merging tech excellence with business acumen. Let's transform the AI wave into your competitive edge. โœ…DM me if you have an exciting problem to solve! โ€”Updated January, 2026โ€” Latest LLMs (2025-26): GPT-5.2 (OpenAI's flagship with 26% lower hallucination rate) Claude 4.5 Opus & Sonnet 4.5 (200K context, breakthrough coding performance) Gemini 3 Pro & Flash (Deep Think mode, multimodal excellence, 1M token context) DeepSeek V3.2 & R1 series (685B parameters, hybrid thinking/non-thinking modes) Qwen 3 series (open weight dense and mixture-of-experts (MoE) model for reasoning tasks) Agentic AI Frameworks: Langchain & LangGraph (stateful graph-based workflows, production-grade orchestration) OpenAI Agents SDK (lightweight with guardrails and handoffs) CrewAI (role-based multi-agent collaboration, human-in-the-loop) LlamaIndex Agents (RAG-first agent capabilities) AI workflow automation: n8n Knowledge Graphs & Graph RAG: Neo4j 2025 features: Community summaries, parallel retrievers, LLM Knowledge Graph Builder Neo4j Aura Graph Analytics Graph RAG architecture Cypher query optimization, graph embeddings for ML Agentic knowledge graph construction with provenance Computer Vision Applications: Workplace safety, Video generation Multimodal Vision Language Models (VLMs) Context engineering for high quality content generation

  • Machine Learning
  • Deep Learning
  • Artificial Intelligence
  • Python
  • Natural Language Processing
  • Data Science
  • Computer Vision
  • PyTorch
  • TensorFlow
  • Retrieval Augmented Generation
  • Large Language Model
  • Data Engineering
  • AI Agent Development
Gokhul M.

Berlin, Germany

$15/hr
5.0
2 jobs

I am a Professional Data person fluent in Data Analytics and Data Engineering. I turn messy data into clear insights and automate end-to-end Data-to-Decision systems. My work spans Product Analytics & Data Engineering, so I do not just analyze data; I build the pipelines, models, and dashboards that power decisions. Certifications: dbt Certified Developer TechStack Python โ€ข SQL โ€ข dbt โ€ข Shopify Analytics โ€ข Airflow โ€ข Looker Studio โ€ข Looker โ€ข n8n โ€ข PowerBI โ€ข Power Automate โ€ข Airtable โ€ขTableau โ€ข BigQuery โ€ข GCP โ€ข LLM APIs โ€ข Excel If you need someone who understands data end-to-end and will hold themselves accountable to measurable business outcomes, letโ€™s talk. What Else Can I Do? - Create detailed documentation for data requirements and data strategy. - Build data pipelines from scratch to meet your goals, including API-based data extraction. - Build clear visualizations that highlight the most important insights. - Automate routine workflows with Python or n8n. - Analyze Shopify data using Shopify app API (version: 2026) Feel free to reach out through Upwork messaging to get started. Youโ€™re also welcome to contact me just for ideas or a conversation, even if youโ€™re not yet sure about the full scope of the work.

  • Python
  • SQL
  • Data Analysis
  • Data Extraction
  • Analytical Presentation
  • A/B Testing
  • Product Analytics
  • Microsoft Power Automate
  • Microsoft Excel
  • Financial Analysis
  • Business Analysis
  • Microsoft Power BI
  • n8n
  • Data Visualization
  • Data Modeling
Sukanta B.

Berlin, Germany

$25/hr
4.8
72 jobs

Iโ€™m Sukanta โ€” a Full Stack Developer with a B.Sc. in Computer Science and 7+ years of experience building secure, scalable, and high-performing web applications. I deliver complete solutions โ€” from frontend UI/UX to backend architecture and API integrations โ€” with a focus on performance, maintainability, and client satisfaction. I have successfully developed SaaS platforms, enterprise systems, single-page applications (SPAs), and RESTful APIs for clients worldwide. Core Skills * Frontend: React.js (Redux, Zustand, React Router, Next.js), Vue.js (Vuex, Pinia, Vue Router, Nuxt.js), TypeScript, JavaScript (ES6+), GrapesJS, jQuery, Bootstrap, Tailwind CSS, SCSS * Backend: Node.js (Express.js, Nest.js), Python (Flask, FastAPI), PHP (Laravel, CodeIgniter) * Databases: MySQL, PostgreSQL, MongoDB, SQL, NoSQL * DevOps & Deployment: Docker, Nginx, AWS, DigitalOcean, Heroku, cPanel, CI/CD (Ploi.io, DeployHQ) * Version Control: Git, GitHub, GitLab, Bitbucket * Testing: Unit Testing Special Expertise * API Integration: Google Drive, Dropbox, OneDrive, Google Maps, Facebook Graph, LinkedIn, Twitter, Hogan Assessments, Airlines APIs, Payment APIs (Stripe, PayPal, SSLCOMMERZ), and more * Generative AI & LLM: ChatGPT API, AI Automation, RAG, Vector Databases * Architecture & Scalability: Microservices, REST APIs, real-time apps with Redis & Socket.io ๐Ÿ’ก Why Clients Choose Me ๐Ÿ‘‰ Fast, clear, and proactive communication ๐Ÿ‘‰ On-time delivery and commitment to deadlines ๐Ÿ‘‰ Experience with large-scale web projects ๐Ÿ‘‰ Strong problem-solving mindset and adaptability ๐Ÿ‘‰ Willingness to learn and implement new technologies quickly ๐Ÿ’— Letโ€™s turn your idea into a robust, scalable web application. ๐Ÿ’— Send me a message, and Iโ€™ll be happy to discuss your project.

  • Vue.js
  • Docker
  • Node.js
  • Laravel
  • MongoDB
  • React
  • API Integration
  • Nuxt.js
  • Python
  • FastAPI
  • NestJS
  • TypeScript
  • Next.js
  • ChatGPT
  • ExpressJS
  • MySQL
  • PHP
  • JavaScript
  • HTML5
  • Bootstrap
  • SCSS
Pavel O.

Berlin, Germany

$39/hr
4.8
128 jobs

๐Ÿ’ผ Python Developer | Python Django | Python Web Scraping | Python Full Stack Developer | Python AI | Python Automation ๐Ÿ† TOP RATED PLUS | ๐Ÿ’ฐ $5M+ Client Revenue | ๐Ÿ’ผ 111+ Projects Delivered | โœ… 11,000+ Upwork Hours ๐Ÿ’ก Clients Achieved: ๐Ÿš€ Raised $4.9M+ / $9.4M+ / $6M+ after product development ๐Ÿ“ˆ Scaled platforms to millions of users & billions of operations โšก Reduced system load & response time with optimized Python architectures ๐Ÿ’ฐ Automated payments, workflows, and analytics โ†’ higher ROI & efficiency ๐Ÿฅ Built secure, compliant systems (HIPAA, GDPR) used by global organizations I am a Python Developer, Python Full Stack Developer, Python AI Developer, and Python AI Engineer with 10+ years of experience building scalable web platforms, SaaS products, AI systems, and high-performance backend architectures. As a Python Developer, I specialize in designing clean architecture, scalable systems, performance optimization, and production-ready solutions that support real business growth. I work as a Python Full Stack Developer (Python + React / Next.js), combining powerful backend engineering with modern frontend development to deliver complete end-to-end applications. My expertise includes Python Django development, Flask development, and FastAPI development, building robust APIs, microservices, and distributed systems. I am also a Python Automation Engineer and Python Web Scraping Specialist, building intelligent automation systems, data extraction pipelines, and large-scale Python web scraping solutions for business intelligence, analytics, and AI-driven data processing. I design reliable scraping architectures that handle complex, high-volume data at scale. As a Python AI Developer, I build AI-powered applications, NLP systems, automation workflows, and data-driven intelligent platforms integrated with modern Python frameworks and cloud infrastructure. โšก Core Expertise as a Python Developer Python Full Stack Development (Python + React / Next.js) Python Django Developer, Flask Developer, FastAPI Developer Python AI Development & Machine Learning Integration Python Automation Engineering for business workflows Python Web Scraping & Data Extraction Systems Scalable backend systems, APIs, and microservices Cloud & DevOps (AWS, Docker, CI/CD pipelines) High-performance, production-grade Python systems ๐Ÿš€ Selected Projects The Skills ($4.9M raised) ๐ŸŽ“ โ€“ Built and scaled an e-learning platform with payments, subscriptions, and mobile apps. As a Python Developer, helped launch a product used by thousands of users worldwide. Veeqo (acquired by Amazon) ๐Ÿ“ฆ โ€“ Developed retail infrastructure processing ยฃ1B+ in orders. Optimized backend performance, integrated Stripe, and reduced server load using AWS Lambda as a Python Developer. Creyos (75K+ users, healthcare) ๐Ÿฅ โ€“ Built a HIPAA-compliant cognitive assessment platform used by global research institutions. As a Python Developer, worked on secure data systems, scaling, and performance. CityFALCON ($6M raised) ๐Ÿ“Š โ€“ Created a real-time NLP-powered financial news platform processing millions of articles daily. Designed scalable backend architecture as a Python Developer. โšก What I Deliver as a Python Developer Clean, scalable Python AI systems and backend architectures High-performance Python Django / Flask / FastAPI applications Python Full Stack Development (React / Next.js integration) Python Automation & Python Web Scraping solutions AI-powered Python applications and intelligent workflows Secure, compliant systems (GDPR, HIPAA-ready architectures) End-to-end product delivery from idea to production Client Testimonials โญโญโญโญโญ โ€œVery professional! Pleasure to work with. Will definitely use again.โ€ โญโญโญโญโญ โ€œSuper reliable, fast, and with clean, well-structured code. Communication was smooth and always on time.โ€ โญโญโญโญโญ โ€œVery satisfied with the work.โ€ ๐Ÿ’ผ Why Clients Work With Me 10+ years of proven experience as a Python Developer Strong expertise in Python Full Stack, Python AI, and Python Web Scraping Ability to scale systems from MVP to enterprise-level platforms Deep understanding of backend architecture and system design Reliable communication and predictable delivery ๐Ÿš€ Letโ€™s talk about your project - I am available as your Python Developer, Python Full Stack Developer AI React, Python AI Developer, Python Automation Engineer, Python Django Developer, and Python Web Scraping Specialist.

  • Flask
  • Python
  • Python Script
  • Data Scraping
  • Automation
  • Artificial Intelligence
  • Machine Learning
  • Deep Learning
  • Scripting
  • Data Extraction
  • Chatbot Development
  • FastAPI
  • Back-End Development
  • Django
  • PostgreSQL
  • JavaScript
  • API
  • React
  • jQuery
  • Docker

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