I'm Oliver Kriz, an experienced IT freelancer and software architect from Berlin, Germany. With over 15 years of professional experience in software development, I specialize in building robust, scalable solutions that bridge the gap between business requirements and technical implementation.
💡 I love solving complex technical challenges and transforming business ideas into reality through modern software architecture.
🎓 Master of Science in Computer Science and Media from Beuth University of Applied Sciences
⚡ Passionate about PHP, Java, Node.js, Python, AWS, and full-stack development
📧 Let's connect - I'm always open to exciting new projects!
Development of custom software solutions from conception to implementation. Full-Stack Development with modern technologies.
- Web & Mobile Development
- API Design & Development
- Database Design
- Testing & Quality Assurance
Design of robust, scalable system architectures for complex business requirements and modern cloud environments.
- Microservices Architecture
- Cloud-native Solutions
- Performance Optimization
- Scalability Planning
Strategic consulting on technical decisions, technology selection and digital transformation of your company.
- Technology Strategy
- Process Optimization
- Team Building & Training
- Project Management
Backend: PHP (15+ years), Java, Node.js, Python
Databases: MySQL, PostgreSQL, ElasticSearch
Cloud & DevOps: AWS, Docker, Kubernetes, Jenkins, GitLab
Frontend: JavaScript, Angular, Vue.js
Frameworks: Symfony, Laravel, Spring Boot, Koa
Principal Software Engineer & Consultant
Freelancer & Companies
2020 - Present
Development of complex software solutions for various industries. Consulting on implementation of modern technologies and architectures.
Lead Developer & System Architect
Various Companies
2015 - 2020
Leading development teams, designing system architectures and implementing DevOps practices. Migration of legacy systems.
Software Engineer
Startups & SMEs
2010 - 2015
Development of web applications and mobile apps. Experience with various technology stacks and frameworks.
- 4+ years of functional & technical leadership experience
- 10+ years as permanent employee in tech scene
- 5+ years in startup environments
- 15+ years of PHP development experience
- Multiple successful system migrations and modernizations
- Bridge between business and technology - I understand both sides
- MVP thinking - Focus on delivering value quickly
- Data-driven decision making - Analytics and performance optimization
- Innovative problem solving - Hacker-style approach to challenges
- Team coaching - Building and mentoring development teams
- Modern Software Architecture patterns and best practices
- Cloud-Native Development with AWS and containerization
- API-First Development and microservices design
- Performance Optimization and scalability solutions
- Security Best Practices and compliance
💻 My Portfolio Website - realidea - realization of ideas
💼 LinkedIn
"Turning complex business requirements into elegant, scalable software solutions."
Available for freelance projects and consulting opportunities! 🚀