Application Engineering

Custom software for long-term scalability and reliability

Digital products and platforms from concept to scalable operation with API-first design, modular architectures, and clean domain models that ensure maintainability.

The Challenge

Unclear domain boundaries, missing interfaces, and insufficient automation lead to monoliths, technical debt, and slow release cycles. Without clear architecture and quality assurance, software becomes more complex with every change, limiting maintainability and extensibility.

Typical Use Cases

  • Building new digital products and platforms in B2B or B2C environments.
  • Modernization of monolithic legacy systems into modular services.
  • Development of API platforms for internal or external use.
  • Realization of customer-oriented portals with high integration density.

Our Contribution

Product and Application Development

  • Creation of domain-driven domain models and definition of clear bounded contexts.
  • Design and implementation of API-first architectures and modular microservices.
  • Development of stable, scalable backends as well as reactive, performant frontends.
  • Integration of existing systems and data via defined interfaces.
  • End-to-end development from Minimum Viable Product (MVP) to operationally secure platform.

Continuous Delivery and Quality Assurance

  • Setup and maintenance of CI/CD pipelines with automated build, test, and deploy processes.
  • Implementation of automated tests (unit, integration, end-to-end) to ensure code quality.
  • Introduction of staging and rollout strategies (Blue/Green, Canary Releases) for smooth updates.
  • Telemetry, logging, and monitoring for early error detection and performance optimization.

Our Approach

1

Domain boundary definition: Analysis of business context and identification of clear domain boundaries.

2

API design: Specification of interfaces that enable efficient and stable interaction between domains.

3

Architecture implementation: Implementation of microservices and self-contained systems with standardized technologies.

4

Incremental feature development: Implementation of new requirements in short development cycles with ongoing coordination.

5

Integration of automated tests: Seamless integration into the development process for continuous quality assurance.

6

Automated deployment: Setup of CI/CD pipelines and defined rollout strategies for frequent, secure releases.

We rely on cross-functional teams, iterative development, and production-like environments to continuously improve software and adapt it to requirements.

Responsibility

We are responsible for architecture, code quality, test strategy, and automation of build and deployment processes. Our clients define domain requirements and prioritize features and make product decisions.

Delivered Outcomes

Clear software architecture that remains maintainable and extensible in the long term.

Fast, secure release cycles through automated CI/CD and test processes.

Reduced error rates and lower effort for manual testing.

Secure, integrated applications that grow with business requirements.

Let's talk

Design your software architecture for the future. We accompany you from concept to productive platform. Contact us to develop your digital product with state-of-the-art engineering methods.

Contact

GreenVee