About

    Team and methodology: architecture, judgement and execution

    We design systems that solve real problems. We think architecture before trends.

    Principles

    What we believe

    Our principles drive every technical decision. We don't follow trends, we follow judgement.

    Working principles at Criterian

    Think before building

    Every line of code must answer a real problem. We don't build for the sake of building.

    Architecture as the foundation

    Technical decisions grounded in scalability, maintainability and performance.

    Technology serving the business

    The tech stack must enable strategic objectives, not dictate them.

    Methodology

    How we work

    01

    We understand the context

    Deep analysis of the technical and business problem. Conversations with stakeholders and technical teams.

    02

    We design the architecture

    Documented technical decisions. Stack justified by requirements, not trends.

    03

    We build with quality

    Maintainable code, automated testing and mandatory code review. No shortcuts.

    04

    We evolve with data

    Continuous monitoring, performance metrics and optimisation based on real behaviour.

    Working methodology
    Technical culture

    We don't follow trends

    We pick tools by architecture. Each technology must solve a specific problem.

    TypeScriptLanguage

    Use: Static typing across the stack

    Why: Reduces production errors and improves code maintainability

    ReactFrontend

    Use: Reactive, component-based UIs

    Why: Mature ecosystem with predictable performance and a wide talent pool

    Node.jsBackend

    Use: High-performance APIs and microservices

    Why: Non-blocking event loop ideal for real-time I/O-intensive applications

    PostgreSQLDatabase

    Use: Relational persistence and complex queries

    Why: Proven reliability in enterprise environments with full ACID support

    RedisCache

    Use: In-memory cache and message queues

    Why: Sub-millisecond latency that improves response times

    KubernetesOrchestration

    Use: Container orchestration and auto-scaling

    Why: Automatic horizontal scalability and zero-downtime deployments

    AWSCloud

    Use: Cloud infrastructure and managed services

    Why: Largest service catalogue with global presence in 30+ regions

    TerraformIaC

    Use: Declarative infrastructure as code

    Why: Full environment reproducibility and audit of infrastructure changes

    Reference architecture

    Systems designed to scale

    Each layer has a purpose. Click any block to explore our reference architecture.

    Select a layer to see the technical detail

    Team

    Multidisciplinary and technical

    Team experienced in architecture, development and product.

    Multidisciplinary team

    Software architects

    Design of scalable systems and strategic technical decisions

    Full-stack engineers

    Development of robust applications with testing and CI/CD

    Product managers

    Alignment between business goals and technical execution

    Focus

    We design systems that scale

    Not projects that expire. Architectures designed to grow and evolve.

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