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Sergej MüllerSM

Sergej Müller

AI Integration Expert & Full-Stack Developer

€800/day
1 project
Fürth, DE
3-7 years

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!
  • 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

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

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