Architecture, senior software engineering, and technical execution for demanding products.

Software Architecture

Architecture that clarifies delivery, not just diagrams.

LRJI helps product and engineering teams turn architecture choices into usable decisions: domain boundaries, modularity, technical standards, migration paths, and delivery guardrails.

The work combines Staff-level architecture judgement with field execution across TypeScript, Node.js, DDD, Hexagonal Architecture, event-driven systems, GCP, CI/CD, test strategy, and long-term maintainability.

When to intervene

The right signals for architecture support

Architecture is useful when it reduces operational ambiguity. Not when it adds a new vocabulary layer above an already confused system.

01

Technical decisions keep multiplying without a clear doctrine

Every feature reopens the same debates around decomposition, ownership, contracts, tests, data, or runtime.

02

Business and technical boundaries no longer tell the same story

The product model, modules, services, teams, and data flows have gradually drifted apart.

03

Delivery slows down even though the team is working hard

Pull requests get larger, releases require too much coordination, and regressions appear in unexpected areas.

04

Microservices, event-driven, DDD, or modular monolith are discussed without decision criteria

The options are known, but the team lacks a clear arbitration tied to traffic, organization, cost, and the actual product.

05

The business roadmap depends on a more reliable technical foundation

The next phase requires stabilizing the foundations before adding more feature surface.

Scope

What the engagement clarifies

The work connects product architecture, code, platform, and delivery organization. Diagrams only matter when they make decisions clearer.

Domain boundaries and modularity
Definition of bounded contexts, modules, application responsibilities, internal contracts, and the areas that must stay decoupled.
Application architecture and integrations
Choices across modular monoliths, services, event-driven architecture, REST/tRPC/OpenAPI APIs, Kafka or RabbitMQ messages, and integration patterns.
Delivery, runtime, and quality
CI/CD, tests, observability, GCP, Cloud Run, Kubernetes, Docker, shift-left security, and standards that protect maintainability.
Technical governance
ADRs, RFCs, C4 models, code conventions, decision rituals, and criteria that prevent the architecture from dissolving after the engagement.

Approach

The LRJI position

Architecture is not a style exercise. It should help a team ship better, reduce risk, and decide faster.

Decide at the right level

No false balance. A decision must name the context, the dominant constraint, and the recommended option.

Stay close to the code

Standards must show up in the real project structure, tests, conventions, and first pull requests.

Fit the architecture to the team

A system for four developers does not need the same architecture as a global platform with multiple autonomous teams.

Document so the team can continue without a consultant

Decisions, tradeoffs, and revision criteria must remain usable by the team after the engagement.

Format

How the engagement works

The format adapts to the context, but the thread stays the same: understand the real system, decide what matters, then install execution guardrails.

  1. 01

    Read the real system

    Codebase, business flows, pipelines, runtime, incidents, technical debt, product constraints, and delivery friction are analyzed together.

  2. 02

    Map the decisions

    Open topics are separated into structural decisions, team standards, reversible choices, and debt that needs sequencing.

  3. 03

    Define the path

    Target architecture, boundaries, integration patterns, migration plan, and delivery rules are made actionable.

  4. 04

    Anchor it in execution

    Decisions become ADRs, RFCs, C4 views, conventions, initial code changes, or team enablement.

Outputs

What the team gets

The outputs are not designed to fill a folder. They are meant to support decisions, align the team, and reduce coordination debt.

  • Target architecture readable by CTO or technology leadership and usable by the engineering team.
  • Clarified domain boundaries, modules, contracts, and responsibilities.
  • ADRs, RFCs, or C4 views documenting structural decisions.
  • Sequenced migration or simplification path.
  • Delivery, testing, CI/CD, observability, and security standards adapted to the context.
  • Decision criteria for when to distribute, modularize, refactor, or deliberately wait.

Proof

Relevant experience

The references stay intentionally concise, but the thread is consistent: simplify, clarify boundaries, and connect architecture to delivery.

7 -> 1

Retail: simplifying a microservices architecture

Progressive migration toward a more maintainable primary deployable, fewer pods per environment, and simpler release coordination.

Read the retail case

0 -> prod

SaaS: TypeScript and GCP foundations

End-to-end architecture with tactical DDD, TypeScript, tRPC, PostgreSQL, GCP, and shift-left practices to avoid a future rewrite.

Read the SaaS case

Identity

Banking: critical authentication platform

Backend architecture around Keycloak, abstraction layer, Hexagonal Architecture, and more testable application boundaries.

Read the authentication case

Possible next steps

The right service depends on the starting point

Software architecture can be the central engagement or the logical continuation of an audit, a migration, or a senior execution need.

When legacy blocks delivery

Turn decisions into sequenced migration, coupling reduction, and progressive modernization.

Legacy Migration

When execution is the issue

Strengthen the team with senior software engineering that ships while protecting the architecture.

Senior Software Engineering

When integration becomes central

Frame event-driven design, messages, contracts, idempotency, data consistency, and the real limits of distribution.

Event-Driven Architecture

When the product is starting

Lay foundations for a SaaS, a risky prototype, or a platform before poor early choices become expensive.

Project Bootstrap

FAQ

FAQ

How is this different from the architecture audit?

The audit produces a diagnosis and priorities. Architecture support goes further: it helps design the target, make decisions, formalize standards, and support execution.

Can this work alongside an existing engineering team?

Yes. The goal is to strengthen the team's direction, decisions, and execution model, not to replace internal ownership.

Does this cover DDD, event-driven architecture, and GCP topics?

Yes. Those topics are part of the scope when they serve the product, system boundaries, and delivery constraints. They are not imposed as default vocabulary.

Next step

Bring the hard decision, the codebase, and the delivery constraint.

LRJI helps turn that context into target architecture, explicit tradeoffs, and standards the team can apply without losing pace.