Make Your Team Strongerwith Expert-Led Training

Build in‑demand skills with training in Architecture, Java, Testing, and Modern frameworks.

Our Impact

Building better development teams together

We work with companies of all sizes to help their development teams grow and master modern technologies and architectural patterns.

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Trainings Completed

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Professionals Educated

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Feedback Score

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Companies Served

All statistics are based on real data from our completed training sessions and verified customer feedback.

Who We Are

Experts with passion for teaching

We love to teach and we have a lot to share. With over 40 years of combined experience, we take developers to the next level in technical areas, as well as in aspects such as attitude, commitment, communication in the team, etc.

Marek Dominiak

Marek Dominiak

Owner / Architect / Lead Developer

19 years experience

Key skills:

Software ArchitectureDomain-Driven DesignTest-Driven DevelopmentAWSJavaSpring
Vadzim Prudnikau

Vadzim Prudnikau

Architect / Team Lead / Senior Developer

21 years experience

Key skills:

Software ArchitectureDomain-Driven DesignTest-Driven DevelopmentAzureJavaReactAI

Our Training Programs

We cover the most in-demand topics

We provide exactly what developers need rather than giving already known material or knowledge in areas not related to developers' interests.

Most Popular
3 daysadvanced
Implementing Modern Architecture
A practical three-day deep dive into modern software architecture. Learn how to choose the right system shape, apply Domain-Driven Design, and code your architecture with patterns that keep systems reliable, observable, and easy to evolve.
Architecture trade-offs: monolith, modular monolith, microservices
Strategic and tactical Domain-Driven Design
Synchronous and asynchronous communication patterns
Hexagonal architecture and coding your architecture
CQRS and event sourcing fundamentals
Running in production: stability, security, and monitoring
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Most Popular
3 daysadvanced
Implementing Modern Architecture - Part 2
A three-day follow-up focused on modernization and safe evolution. Design serverless solutions, evolve synchronous and asynchronous APIs, document beyond C4, test complex systems, and build resilient software ready for continuous delivery.
Serverless options and strangler-fig modernization
API evolution for sync and async communication
Documentation beyond C4
Options for storing data: relational, key-value, document, etc.
Testing complex systems including contract tests
Continuous delivery, deployment strategies, and data migration
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Most Popular
2 daysintermediate
Applying DDD and EventStorming in Modern Architecture
Two days of hands-on workshops that align architecture with business. Model domains with EventStorming, discover bounded contexts, and implement tactical DDD in code to design software that solves real problems.
Big-Picture and Process-Modelling EventStorming
Discovering Bounded Contexts
Tactical DDD: entities, value objects, aggregates
Ensuring invariants, modelling state transitions
Repositories, domain services, factories, and domain events
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Our Customer References

Real feedback from satisfied clients

Click below to open the references given to us by our customers.

Ronny Mandal

SkatteetatenConsultant
Implementing Modern Architecture
2025-12-01
Finally, the instructors were clearly experienced practitioners. Their teaching was enriched with anecdotes and lessons learned from real projects, which helped ground advanced topics such as tactical DDD, CQRS, event sourcing, system stability, security, and monitoring. Overall, this was a well-structured, insightful, and highly applicable course that I would strongly recommend to architects and senior developers working on complex systems.

Synne Ødegaard

Bouvet Norge ASConsultant
Implementing Modern Architecture
2025-11-12
What really stood out to me was how Marek and Vadzim drew on real-world experience and used practical examples throughout, which made the content easier to relate to and understand. It was an intensive and comprehensive course, but Marek and Vadzim kept it engaging.

Inge Amdal Halvorsen

Bouvet Norge ASConsultant
Boost your Architecture by Test-Driven Development
2025-10-16
I found the course to be both highly interesting, and of great use in my daily work as a developer. of especial interest to me was the introduction of the test framework Spock, and the part of testing with time - something that is relatively hard to do. I also found the part about integration testing to be highly interesting.

Ready to Join Our Customers’ Success?

Share your goals and constraints - we’ll reply within 1 business day with recommended trainings and next steps.

Chosen by Development Teams

Over 40 companies have improved their developers' skills with us

From growing startups to established enterprises, development teams choose Trainitek to advance their technical expertise.

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Trainitek - Expert Training in Architecture, Java, Testing, and Modern frameworks