
The future of development isn't about memorizing syntax —AI can handle that. What truly matters now are the skills machines can't replicate: system design, architectural thinking, problem decomposition, and understanding the bigger picture. Our courses focus on these critical competencies that will define successful developers in the AI era.
Whether you're starting your journey or you're a seasoned professional adapting to this new landscape, our experienced instructors bring years of real-world expertise to help you master what matters most. We teach you to think like an architect, design scalable systems, make strategic technical decisions, and lead projects with confidence.
With courses in English or Hungarian covering Java, DevOps, Cloud, System Design, and more, we provide comprehensive training that prepares you for the reality of modern development—where understanding trade-offs, patterns, and principles trumps memorizing commands.

In an AI-augmented world, your competitive advantage lies in teams who can architect solutions, not just write code. We help companies build this strategic capability by training employees and partners in the skills that truly differentiate: system design, architectural decision-making, cloud strategy, scalability thinking, and technical leadership.
Our verified training programs cover Java/Spring, DevOps/Cloud (Azure/AWS/GCP), Databases/SQL, System Design, and beyond—each designed to elevate your team from implementers to architects. We focus on developing the judgment, design thinking, and strategic technical skills that AI cannot replace.
Whether you're a multinational corporation transforming your engineering culture or a growing business building your technical foundation, we deliver tailored learning solutions that prepare your teams for the realities of modern development.
Proactivity fuels our success. We inspire our mentors to take initiative and tackle challenges before they arise. Our culture fosters anticipation, enabling us to prevent issues and drive continuous improvement. This proactive stance keeps us ahead, ensuring exceptional service delivery.
We value transparency at every level of our organization. We believe that transparency builds trust and fosters healthy relationships with our clients. Our team members are trained to be transparent in their communication and processes, ensuring that our clients are always kept in the loop. We understand that transparency is critical to building long-term partnerships and delivering successful outcomes.
We encourage our mentors to find solutions, not just focus on problems. This helps us create new and better ways to teach, tailored to different learning needs. Our approach means we can quickly adapt to make sure our teaching is always top-notch for our students.
Collaboration is at the heart of our organization. We believe that collaboration is the key to unlocking creativity, productivity, and innovation. Our mentors are trained to collaborate effectively with each other and with our clients. By working together, we are able to leverage each other's strengths and deliver exceptional outcomes. We foster a collaborative culture that values diversity and inclusivity, enabling us to work effectively with individuals from different backgrounds and cultures.
We value learning as a lifelong pursuit. Our mentors are encouraged to grow personally and professionally. Through diverse opportunities like training and mentoring, we invest in their development. This commitment keeps us ahead, delivering innovative solutions that set us apart from competitors.
I'm the founder and lead instructor at CodeHunters, and I'll be the one teaching your course. With 10+ years building systems at companies like Morgan Stanley, Tesco, SAP, and Adevinta, I've designed infrastructure from scratch, led engineering teams, and migrated entire platforms across cloud providers. But what really drives me is sharing this knowledge—I've been teaching since my university days and haven't stopped since.
I'm obsessed with learning. You'll find me absorbing new technical content on the treadmill at the gym, during my commute, sometimes even while walking. I train myself actively every single day because technology never stands still, and neither do I. This isn't a side gig for me—teaching is my passion, and I personally deliver every training session unless a larger group requires additional instructors I've hand-selected.
My expertise spans the full stack: backend (Java, Kotlin, Spring), DevOps and cloud infrastructure (AWS, Azure, GCP), containerization (Docker, Kubernetes), automation (Terraform, CI/CD), frontend (React, Angular), databases, system design, and technical leadership. I've built fraud detection systems, designed blue-green deployments, migrated services across clouds, and led teams through architectural decisions. Now I bring all of that real-world experience into the classroom—or to your office, as I regularly travel across the EU to deliver in-person corporate training.
When you learn with CodeHunters, you're learning directly from someone who lives and breathes this stuff, someone who's made the mistakes, solved the problems, and is genuinely excited to help you master what matters most in modern software development.
Discover our comprehensive training programs designed to elevate your technical skills. We run our own courses and Zoltan Czirjak provides personalized mentoring to ensure your success in the tech industry.
Boost your team's skills with hands-on technical training designed for real-world challenges. We work with groups of 5-15 people in a collaborative, interactive environment.
Popular technologies we teach:
How we work - completely personalized for you:
Need to transition your team to a new technology stack? We provide comprehensive retraining programs with ongoing mentoring support.
Ready to elevate your team's capabilities? Get in touch or schedule a consultation below.
Build your talent pipeline with structured career development programs that take developers from one level to the next. Our fixed-length programs are designed for clear skill progression and career advancement.
Program tracks we offer:
How we work - completely personalized for your organization:
Each program combines hands-on projects, code reviews, architectural thinking, and real-world problem solving. We focus on the specific skills needed at each career level, ensuring your team members grow into their next roles with confidence.
Perfect for companies building internal talent or organizations looking to standardize skill levels across teams. Let's design a career development program for your team.
Support your growing developers with personalized mentoring that accelerates their professional journey. Many junior team members don't get the guidance they need to reach their full potential.
How we work - completely personalized for your developers:
Our mentoring program pairs experienced developers with your team members for regular 1-2 sessions per week. We create personalized development plans, track progress, and provide constructive feedback.
While we guide and advise, we ensure your mentees remain responsible for their work – building independence and confidence along the way. This approach increases engagement and creates long-term growth opportunities.
How we work:
Technologies we mentor:
Start a conversation about mentoring for your team.
Tesco Technology,
Virgo Systems,
Lufthansa Systems,
Chemaxon,
Apollo Solutions,
Services4IT,
TEKSystems,
Adevinta,
Whitehall Resources,
SAP,
Sullivan and Stanely
If you have any questions or
would like to discuss your needs in more detail,
please schedule a
30-minute
informal conversation with us.
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Join developers who've advanced their careers with CodeHunters
Tell us about your learning goals and we'll help you find the perfect program
Budapest, Hungary
Hungarian TAX/VAT: 28730349-2-13
Adult Education Reg: B/2022/001098
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