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

Senior software engineering

Staff-level execution that ships without weakening the architecture.

LRJI reinforces teams that need hands-on capacity on difficult work, with the judgement required to protect boundaries, tests, maintainability, and the technical path.

The engagement covers TypeScript, JavaScript, Node.js, NestJS, tRPC, Vue, React, Nuxt, CI/CD, testing, integrations, GCP, and modernization. The goal is not generic staffing, but senior reinforcement that can ship and structure at the same time.

When to intervene

When the team needs more than extra hands

The need is not only to add another person. The need is to add execution capacity that also improves the technical path.

01

Critical work moves too slowly

Backends, integrations, migrations, tests, or platform work require senior depth the team cannot always mobilize.

02

Delivery accelerates by creating debt

Features ship, but tests, boundaries, contracts, and standards weaken sprint after sprint.

03

Complex pull requests lack senior review

Important decisions land in code without enough perspective on maintainability, security, performance, or operations.

04

The team must modernize while shipping

The system needs refactoring, migration, simplification, or decommissioning without stopping the product roadmap.

05

Technical leadership is overloaded

The CTO, lead, or architect becomes the bottleneck between arbitration, review, delivery, and team support.

Scope

Where the reinforcement creates value

The engagement targets areas where code, delivery, and architecture meet. That is exactly where seniority matters.

Backend and integrations
TypeScript, Node.js, NestJS, Express, Fastify, REST, OpenAPI, tRPC, Kafka, RabbitMQ, PostgreSQL, MongoDB, and Redis.
Product frontend and full-stack
Vue, Nuxt, React, Tailwind, TanStack, analytics, and front/back contracts when full-stack coherence accelerates delivery.
Quality, tests, and delivery
Vitest, TDD, test-first, integration tests, E2E, CI/CD, GitHub Actions, GitLab CI, Docker, and observability.
Architecture in the code
DDD, Hexagonal Architecture, SOLID, dependency injection, design patterns, CQRS, event-driven systems, and technical debt reduction.

Engagement mode

How the reinforcement integrates

The format must fit the team's rhythm without becoming invisible. The reinforcement should ship, but also leave usable standards behind.

Ownership of critical work

Take responsibility for a migration, integration, module, or product capability that requires senior depth.

Pairing and structural review

Work with the team on sensitive PRs, design decisions, and conventions that avoid repeated regressions.

Technical stabilization

Reduce the debt that truly slows delivery: missing tests, coupling, weak contracts, fragile pipelines, or opaque areas.

Team enablement

Install standards, examples, decisions, and lightweight rituals so the team continues better after the engagement.

Format

How the work starts

The work starts from concrete delivery problems. Architecture is treated as execution discipline, not a separate phase.

  1. 01

    Frame the work

    Goals, risks, codebase, product constraints, team rhythm, and success criteria are clarified upfront.

  2. 02

    Ship the first proof

    A first PR, missing test, integration, or visible simplification validates the collaboration model.

  3. 03

    Reinforce standards

    Conventions, tests, patterns, and review practices improve where they genuinely support delivery.

  4. 04

    Transfer and stabilize

    Decisions, tradeoffs, and watch points remain understandable by the team after the engagement.

Outputs

What should remain after the reinforcement

The result should not be only billed time. It should leave code, decisions, and a more autonomous team.

  • Code shipped on priority backend, full-stack, integration, or platform work.
  • Tests, contracts, CI/CD, or observability strengthened on critical flows.
  • Pull requests and reviews that improve structure instead of adding debt.
  • Technical standards, examples, and conventions reusable by the team.
  • Architecture decisions documented when they durably change the path.
  • Concrete transfer: pairing, review, explanations, and watch points.

Proof

Relevant experience

The references show the same profile: work in the code, keep architecture quality high, and ship in demanding contexts.

0 -> prod

SaaS: full-stack delivery from zero to production

Architecture and engineering contribution on TypeScript, tRPC, React, PostgreSQL, GCP, and shift-left practices.

Read the SaaS case

Identity

Banking: critical authentication platform

Backend development around Keycloak, Hexagonal Architecture, provider abstraction, and GitLab CI pipeline.

Read the authentication case

7 -> 1

Retail: modernization and simplification

Technical lead work on a migration from microservices to one primary deployable, with simplified local setup and delivery.

Read the retail case

Possible next steps

Depending on the problem

Senior reinforcement can be the core engagement or combine with architecture framing, migration, or product bootstrap.

When legacy blocks delivery

Turn reinforcement into progressive migration, coupling reduction, and decommissioning.

Legacy Migration

When the product is starting

Set SaaS foundations or a risky prototype with solid early technical choices.

Project Bootstrap

FAQ

FAQ

Is this staffing?

No. The format can look like embedded reinforcement, but the goal is different: ship critical work while improving the technical path, standards, and team autonomy.

Does this fit short delivery phases or longer engagements?

Both. A short phase can unlock targeted work. A longer mission is useful when the team needs stable senior depth during a migration, scale-up, or difficult delivery phase.

Does this include TypeScript, Node.js, DDD, and distributed systems work?

Yes. Those are core parts of the work whenever they are central to the platform, the product constraints, and the team's delivery goals.

Next step

Bring the critical work, the codebase, and the team constraints.

LRJI turns that context into concrete senior contribution: code shipped, risks reduced, standards reinforced, and architecture better protected.