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Sergej MüllerSM

Sergej Müller

AI Integration Expert & Full-Stack Developer

€800/day
1 project
Fürth, DE
3-7 years
Python
Django
Cloud Platforms and Infrastructure
Pinescript
Typescript

Average response time: 1 hour

Freelancer profile translated to English.
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About Sergej

Lead Software Engineer | AI Integration & Full-Stack Development for German Companies

As an experienced Lead Software Engineer, I offer tailor-made AI solutions and highly scalable software architectures for German SMEs and corporations. With profound knowledge in software architecture, project management, and team leadership, I deliver innovative, efficient, and high-quality solutions for complex business requirements.

My AI Specializations:
✅AI-powered Call Centers & Automated Calls– 40% efficiency increase in customer interactions
✅Virtual AI Assistants– Automation of routine tasks with 65% time savings
✅Lead Validation & AI-powered Business Automation– Proven increase in conversion rates by up to 35%

With my comprehensive full-stack background, I develop robust, high-performance applications perfectly tailored to modern business needs.

Technical Expertise:
🚀Backend Development:Python (Django, DRF, FastAPI) with a focus on performance
🚀Frontend Development:JavaScript/TypeScript (Vue3, Nuxt3, Astro.js) for optimal user experience
🚀AI & Automation:Custom AI integrations for voice, text, and data processing
🚀Cloud & Infrastructure:AWS, GCP, Terraform, Kubernetes, Docker for scalable systems
🚀Databases:SQL & NoSQL (PostgreSQL, MySQL, MongoDB) with a focus on data security
🚀DevOps & CI/CD:Building scalable infrastructure according to German compliance standards

Whether you need AI-powered automation, scalable software solutions, or expert knowledge in cloud infrastructure – I bring deep technical expertise and proven success to your project. Let's revolutionize your business processes together!
Digital and IT Services
E-commerce
Software Publishing
Telecommunications
Retail (Small Business)

  • Russian

    Native or bilingual

  • English

    Fluent

  • German

    Fluent

  • Ukrainian

    Native or bilingual

Can work on-site
Fürth (up to 50km), Nuremberg (up to 50km), Erlangen (up to 50km)

Experience

  • SevenBrains Tech
    Technical Director
    DIGITAL AND IT
    October 2024 - Today (1 year and 8 months)
    Houston, United States
    • Strategic leadership of the IT development department with a 35% efficiency increase through AI integration into business processes
    • Development and implementation of a scalable AI call center solution with 42% cost savings and 27% higher customer satisfaction
    • Leadership of a cross-functional development team (12 employees) using agile methods and DevOps practices
    • Conception of tailor-made AI systems for various industries with a proven average ROI increase of 65%
    • Optimization of cloud infrastructure with AWS, leading to 51% lower operating costs and 99.9% system availability
    Amazon Web Services (AWS) Artificial Intelligence Python AWS Amplify Nuxt.js Astro.js FastAPI Python/Django Django Rest Framework DevOps
  • Leomax Engineering
    Lead Software Engineer
    DIGITAL AND IT
    June 2023 - August 2024 (1 year and 2 months)
    Cadolzburg, Germany
    • Leadership of the web development department with responsibility for backend and frontend teams (3-5 developers)
    • Successful management of 5 critical enterprise projects with responsibility from architecture to deployment
    • Increase in development speed by 40% while improving code quality and application performance
    • Introduction of automated CI/CD pipelines, reducing the deployment process from 2 days to 3 hours
    • Modernization of legacy systems, resulting in 30% faster loading times and a 25% lower error rate
    Python (Programming Language) Python/Django Django Rest Framework Typescript Vue 3 Docker Redis MongoDB
  • Leomax Engineering
    Full-stack Developer
    DIGITAL AND IT
    June 2022 - June 2023 (1 year)
    Cadolzburg, Germany
    • Development of several successful B2B web applications for the European motorsport industry from scratch
    • Implementation of a new microservice architecture that improved system scalability by 200%
    • Optimization of database queries, leading to 45% faster application performance
    • Development of a user-friendly API successfully integrated by 12+ enterprise partners
    • Introduction of unit and integration tests, reducing the production error rate by 70%
    Python Python/Django Django Rest Framework VueJS Docker Gitlab CI/CD MongoDB PostgreSQL
Check out Sergej's experience

Reviews

5.0

Out of 1 rating

R

Robert

Pädagogische Praxis Singheiser

Reviewed on 9/2/2024

Mr. Müller was very helpful with my programming project. He organized the folder structure clearly and fixed several bugs quickly and effectively. His guidance was clear and helped me get up to speed with the project. I particularly appreciate his support, as he not only assisted me technically but also motivated me. Thanks to him, I was able to complete my tasks more efficiently and with better quality. I highly recommend his help in programming projects.

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Education

  • Master of Laws
    Classical Private University
    2013

Skill set

JavaScript
MySQL
Amazon Web Services
Google Cloud
CI/CD
Langchain
Docker
Kubernetes
Docker-compose
REST
API
Backend Service Development
Content Integration
Cross Device compatibility
Design Patterns
External API integration
Front End Interface Development
Software Architecture
CI/CD Management
Cloud Administration
DevSecOps
Microservices Architecture
Scripting Automation
Cybersecurity Incident Management
Data Privacy (GDPR, CCPA)
Database Management (e.g., SQL, NoSQL)
MongoDB
PostgreSQL
Django Rest Framework (DRF)
Backtrader
Algotrading
Trading strategies development
DRF
Vue.js
Tauri
Cloud Integration
Containerization and Virtualization
Infra as Code
Serverless Computing
IT Architecture
IT Project Management
Nuxt.js
Astro.js
FastAPI
Artificial Intelligence
AI Integration
AI Powered Call Center
CMS Customization
Performance Optimization
SEO Optimization
Testing and Quality Assurance
Least Privilege Principles
Penetration Testing
GRC (Governance, Risk and Compliance)
Risk and Vulnerability Assessment
Security Awareness Training
Threat Intelligence
SRE Principles
Test Environment Management
Algorithms and Data Structures
Batch Processing
Data Cleaning and Preprocessing
Data integration (ETL, ELT and data warehousing)
Data Integrity and Governance
Data Migration and Backup
Data Pipelines and Warehousing
ETL (Extract, Transform, Load) Processes
Web scraping
IT Service Management
IT Strategy
IT Vendor Management and Procurement
Amazon Web Services (AWS)
Artificial Intelligence
AWS Amplify
Python/Django
Django Rest Framework
DevOps
Python (Programming Language)
Vue 3
Redis
VueJS
Gitlab CI/CD
Flask
Microsoft Azure
AWS Lambda

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